* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (21 commits)
ext3: PTR_ERR return of wrong pointer in setup_new_group_blocks()
ext3: Fix data / filesystem corruption when write fails to copy data
ext4: Support for 64-bit quota format
ext3: Support for vfsv1 quota format
quota: Implement quota format with 64-bit space and inode limits
quota: Move definition of QFMT_OCFS2 to linux/quota.h
ext2: fix comment in ext2_find_entry about return values
ext3: Unify log messages in ext3
ext2: clear uptodate flag on super block I/O error
ext2: Unify log messages in ext2
ext3: make "norecovery" an alias for "noload"
ext3: Don't update the superblock in ext3_statfs()
ext3: journal all modifications in ext3_xattr_set_handle
ext2: Explicitly assign values to on-disk enum of filetypes
quota: Fix WARN_ON in lookup_one_len
const: struct quota_format_ops
ubifs: remove manual O_SYNC handling
afs: remove manual O_SYNC handling
kill wait_on_page_writeback_range
vfs: Implement proper O_SYNC semantics
...
identified through its new major/minor numbers encoded
in devnum.
-noload Don't load the journal on mounting. Note that this forces
- mount of inconsistent filesystem, which can lead to
+norecovery Don't load the journal on mounting. Note that this forces
+noload mount of inconsistent filesystem, which can lead to
various problems.
data=journal All data are committed into the journal prior to being
writing out the whole address_space.
The Writeback tag is used by filemap*wait* and sync_page* functions,
-via wait_on_page_writeback_range, to wait for all writeback to
+via filemap_fdatawait_range, to wait for all writeback to
complete. While waiting ->sync_page (if defined) will be called on
each page that is found to require writeback.
#ifndef _ALPHA_FCNTL_H
#define _ALPHA_FCNTL_H
-/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
- located on an ext2 file system */
#define O_CREAT 01000 /* not fcntl */
#define O_TRUNC 02000 /* not fcntl */
#define O_EXCL 04000 /* not fcntl */
#define O_NONBLOCK 00004
#define O_APPEND 00010
-#define O_SYNC 040000
+#define O_DSYNC 040000 /* used to be O_SYNC, see below */
#define O_DIRECTORY 0100000 /* must be a directory */
#define O_NOFOLLOW 0200000 /* don't follow links */
#define O_LARGEFILE 0400000 /* will be set by the kernel on every open */
#define O_DIRECT 02000000 /* direct disk access - should check with OSF/1 */
#define O_NOATIME 04000000
#define O_CLOEXEC 010000000 /* set close_on_exec */
+/*
+ * Before Linux 2.6.32 only O_DSYNC semantics were implemented, but using
+ * the O_SYNC flag. We continue to use the existing numerical value
+ * for O_DSYNC semantics now, but using the correct symbolic name for it.
+ * This new value is used to request true Posix O_SYNC semantics. It is
+ * defined in this strange way to make sure applications compiled against
+ * new headers get at least O_DSYNC semantics on older kernels.
+ *
+ * This has the nice side-effect that we can simply test for O_DSYNC
+ * wherever we do not care if O_DSYNC or O_SYNC is used.
+ *
+ * Note: __O_SYNC must never be used directly.
+ */
+#define __O_SYNC 020000000
+#define O_SYNC (__O_SYNC|O_DSYNC)
#define F_GETLK 7
#define F_SETLK 8
#ifndef _BFIN_FCNTL_H
#define _BFIN_FCNTL_H
-/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
- located on an ext2 file system */
#define O_DIRECTORY 040000 /* must be a directory */
#define O_NOFOLLOW 0100000 /* don't follow links */
#define O_DIRECT 0200000 /* direct disk access hint - currently ignored */
#define O_APPEND 0x0008
-#define O_SYNC 0x0010
+#define O_DSYNC 0x0010 /* used to be O_SYNC, see below */
#define O_NONBLOCK 0x0080
#define O_CREAT 0x0100 /* not fcntl */
#define O_TRUNC 0x0200 /* not fcntl */
#define O_NOCTTY 0x0800 /* not fcntl */
#define FASYNC 0x1000 /* fcntl, for BSD compatibility */
#define O_LARGEFILE 0x2000 /* allow large file opens */
+/*
+ * Before Linux 2.6.32 only O_DSYNC semantics were implemented, but using
+ * the O_SYNC flag. We continue to use the existing numerical value
+ * for O_DSYNC semantics now, but using the correct symbolic name for it.
+ * This new value is used to request true Posix O_SYNC semantics. It is
+ * defined in this strange way to make sure applications compiled against
+ * new headers get at least O_DSYNC semantics on older kernels.
+ *
+ * This has the nice side-effect that we can simply test for O_DSYNC
+ * wherever we do not care if O_DSYNC or O_SYNC is used.
+ *
+ * Note: __O_SYNC must never be used directly.
+ */
+#define __O_SYNC 0x4000
+#define O_SYNC (__O_SYNC|O_DSYNC)
#define O_DIRECT 0x8000 /* direct disk access hint */
#define F_GETLK 14
#define MTSP_O_SHLOCK 0x0010
#define MTSP_O_EXLOCK 0x0020
#define MTSP_O_ASYNC 0x0040
+/* XXX: check which of these is actually O_SYNC vs O_DSYNC */
#define MTSP_O_FSYNC O_SYNC
#define MTSP_O_NOFOLLOW 0x0100
#define MTSP_O_SYNC 0x0080
/* override of arch/mips/mm/cache.c: __uncached_access */
int __uncached_access(struct file *file, unsigned long addr)
{
- if (file->f_flags & O_SYNC)
+ if (file->f_flags & O_DSYNC)
return 1;
return addr >= __pa(high_memory) ||
int __weak __uncached_access(struct file *file, unsigned long addr)
{
- if (file->f_flags & O_SYNC)
+ if (file->f_flags & O_DSYNC)
return 1;
return addr >= __pa(high_memory);
#ifndef _PARISC_FCNTL_H
#define _PARISC_FCNTL_H
-/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
- located on an ext2 file system */
#define O_APPEND 000000010
#define O_BLKSEEK 000000100 /* HPUX only */
#define O_CREAT 000000400 /* not fcntl */
#define O_EXCL 000002000 /* not fcntl */
#define O_LARGEFILE 000004000
-#define O_SYNC 000100000
+#define __O_SYNC 000100000
+#define O_SYNC (__O_SYNC|O_DSYNC)
#define O_NONBLOCK 000200004 /* HPUX has separate NDELAY & NONBLOCK */
#define O_NOCTTY 000400000 /* not fcntl */
#define O_DSYNC 001000000 /* HPUX only */
#ifndef _SPARC_FCNTL_H
#define _SPARC_FCNTL_H
-/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
- located on an ext2 file system */
#define O_APPEND 0x0008
#define FASYNC 0x0040 /* fcntl, for BSD compatibility */
#define O_CREAT 0x0200 /* not fcntl */
#define O_TRUNC 0x0400 /* not fcntl */
#define O_EXCL 0x0800 /* not fcntl */
-#define O_SYNC 0x2000
+#define O_DSYNC 0x2000 /* used to be O_SYNC, see below */
#define O_NONBLOCK 0x4000
#if defined(__sparc__) && defined(__arch64__)
#define O_NDELAY 0x0004
#define O_DIRECT 0x100000 /* direct disk access hint */
#define O_NOATIME 0x200000
#define O_CLOEXEC 0x400000
+/*
+ * Before Linux 2.6.32 only O_DSYNC semantics were implemented, but using
+ * the O_SYNC flag. We continue to use the existing numerical value
+ * for O_DSYNC semantics now, but using the correct symbolic name for it.
+ * This new value is used to request true Posix O_SYNC semantics. It is
+ * defined in this strange way to make sure applications compiled against
+ * new headers get at least O_DSYNC semantics on older kernels.
+ *
+ * This has the nice side-effect that we can simply test for O_DSYNC
+ * wherever we do not care if O_DSYNC or O_SYNC is used.
+ *
+ * Note: __O_SYNC must never be used directly.
+ */
+#define __O_SYNC 0x800000
+#define O_SYNC (__O_SYNC|O_DSYNC)
#define F_GETOWN 5 /* for sockets. */
#define F_SETOWN 6 /* for sockets. */
if (!range_is_allowed(pfn, size))
return 0;
- if (file->f_flags & O_SYNC) {
+ if (file->f_flags & O_DSYNC)
flags = _PAGE_CACHE_UC_MINUS;
- }
#ifdef CONFIG_X86_32
/*
{
#if defined(CONFIG_IA64)
/*
- * On ia64, we ignore O_SYNC because we cannot tolerate memory attribute aliases.
+ * On ia64, we ignore O_DSYNC because we cannot tolerate memory attribute aliases.
*/
return !(efi_mem_attributes(addr) & EFI_MEMORY_WB);
#elif defined(CONFIG_MIPS)
#else
/*
* Accessing memory above the top the kernel knows about or through a file pointer
- * that was marked O_SYNC will be done non-cached.
+ * that was marked O_DSYNC will be done non-cached.
*/
- if (file->f_flags & O_SYNC)
+ if (file->f_flags & O_DSYNC)
return 1;
return addr >= __pa(high_memory);
#endif
}
if (fsg->cmnd[1] & 0x08) { // FUA
spin_lock(&curlun->filp->f_lock);
- curlun->filp->f_flags |= O_SYNC;
+ curlun->filp->f_flags |= O_DSYNC;
spin_unlock(&curlun->filp->f_lock);
}
}
struct afs_vnode *vnode = AFS_FS_I(dentry->d_inode);
ssize_t result;
size_t count = iov_length(iov, nr_segs);
- int ret;
_enter("{%x.%u},{%zu},%lu,",
vnode->fid.vid, vnode->fid.vnode, count, nr_segs);
return result;
}
- /* return error values for O_SYNC and IS_SYNC() */
- if (IS_SYNC(&vnode->vfs_inode) || iocb->ki_filp->f_flags & O_SYNC) {
- ret = afs_fsync(iocb->ki_filp, dentry, 1);
- if (ret < 0)
- result = ret;
- }
-
_leave(" = %zd", result);
return result;
}
unsigned long last_index;
int will_write;
- will_write = ((file->f_flags & O_SYNC) || IS_SYNC(inode) ||
+ will_write = ((file->f_flags & O_DSYNC) || IS_SYNC(inode) ||
(file->f_flags & O_DIRECT));
nrptrs = min((count + PAGE_CACHE_SIZE - 1) / PAGE_CACHE_SIZE,
if (err)
num_written = err;
- if ((file->f_flags & O_SYNC) || IS_SYNC(inode)) {
+ if ((file->f_flags & O_DSYNC) || IS_SYNC(inode)) {
trans = btrfs_start_transaction(root, 1);
ret = btrfs_log_dentry_safe(trans, root,
file->f_dentry);
posix_flags |= SMB_O_EXCL;
if (oflags & O_TRUNC)
posix_flags |= SMB_O_TRUNC;
- if (oflags & O_SYNC)
+ /* be safe and imply O_SYNC for O_DSYNC */
+ if (oflags & O_DSYNC)
posix_flags |= SMB_O_SYNC;
if (oflags & O_DIRECTORY)
posix_flags |= SMB_O_DIRECTORY;
reopening a file. They had their effect on the original open */
if (flags & O_APPEND)
posix_flags |= (fmode_t)O_APPEND;
- if (flags & O_SYNC)
- posix_flags |= (fmode_t)O_SYNC;
+ if (flags & O_DSYNC)
+ posix_flags |= (fmode_t)O_DSYNC;
+ if (flags & __O_SYNC)
+ posix_flags |= (fmode_t)__O_SYNC;
if (flags & O_DIRECTORY)
posix_flags |= (fmode_t)O_DIRECTORY;
if (flags & O_NOFOLLOW)
* ext2_find_entry()
*
* finds an entry in the specified directory with the wanted name. It
- * returns the page in which the entry was found, and the entry itself
- * (as a parameter - res_dir). Page is returned mapped and unlocked.
+ * returns the page in which the entry was found (as a parameter - res_page),
+ * and the entry itself. Page is returned mapped and unlocked.
* Entry is guaranteed to be valid.
*/
struct ext2_dir_entry_2 *ext2_find_entry (struct inode * dir,
/* super.c */
extern void ext2_error (struct super_block *, const char *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
-extern void ext2_warning (struct super_block *, const char *, const char *, ...)
+extern void ext2_msg(struct super_block *, const char *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
extern void ext2_update_dynamic_rev (struct super_block *sb);
extern void ext2_write_super (struct super_block *);
int final = 0;
if (i_block < 0) {
- ext2_warning (inode->i_sb, "ext2_block_to_path", "block < 0");
+ ext2_msg(inode->i_sb, KERN_WARNING,
+ "warning: %s: block < 0", __func__);
} else if (i_block < direct_blocks) {
offsets[n++] = i_block;
final = direct_blocks;
offsets[n++] = i_block & (ptrs - 1);
final = ptrs;
} else {
- ext2_warning (inode->i_sb, "ext2_block_to_path", "block > big");
+ ext2_msg(inode->i_sb, KERN_WARNING,
+ "warning: %s: block is too big", __func__);
}
if (boundary)
*boundary = final - 1 - (i_block & (ptrs - 1));
}
va_start(args, fmt);
- printk(KERN_CRIT "EXT2-fs error (device %s): %s: ",sb->s_id, function);
+ printk(KERN_CRIT "EXT2-fs (%s): error: %s: ", sb->s_id, function);
vprintk(fmt, args);
printk("\n");
va_end(args);
if (test_opt(sb, ERRORS_PANIC))
- panic("EXT2-fs panic from previous error\n");
+ panic("EXT2-fs: panic from previous error\n");
if (test_opt(sb, ERRORS_RO)) {
- printk("Remounting filesystem read-only\n");
+ ext2_msg(sb, KERN_CRIT,
+ "error: remounting filesystem read-only");
sb->s_flags |= MS_RDONLY;
}
}
-void ext2_warning (struct super_block * sb, const char * function,
- const char * fmt, ...)
+void ext2_msg(struct super_block *sb, const char *prefix,
+ const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
- printk(KERN_WARNING "EXT2-fs warning (device %s): %s: ",
- sb->s_id, function);
+ printk("%sEXT2-fs (%s): ", prefix, sb->s_id);
vprintk(fmt, args);
printk("\n");
va_end(args);
if (le32_to_cpu(es->s_rev_level) > EXT2_GOOD_OLD_REV)
return;
- ext2_warning(sb, __func__,
- "updating to rev %d because of new feature flag, "
- "running e2fsck is recommended",
+ ext2_msg(sb, KERN_WARNING,
+ "warning: updating to rev %d because of "
+ "new feature flag, running e2fsck is recommended",
EXT2_DYNAMIC_REV);
es->s_first_ino = cpu_to_le32(EXT2_GOOD_OLD_FIRST_INO);
{Opt_err, NULL}
};
-static int parse_options (char * options,
- struct ext2_sb_info *sbi)
+static int parse_options(char *options, struct super_block *sb)
{
- char * p;
+ char *p;
+ struct ext2_sb_info *sbi = EXT2_SB(sb);
substring_t args[MAX_OPT_ARGS];
int option;
#else
case Opt_user_xattr:
case Opt_nouser_xattr:
- printk("EXT2 (no)user_xattr options not supported\n");
+ ext2_msg(sb, KERN_INFO, "(no)user_xattr options"
+ "not supported");
break;
#endif
#ifdef CONFIG_EXT2_FS_POSIX_ACL
#else
case Opt_acl:
case Opt_noacl:
- printk("EXT2 (no)acl options not supported\n");
+ ext2_msg(sb, KERN_INFO,
+ "(no)acl options not supported");
break;
#endif
case Opt_xip:
#ifdef CONFIG_EXT2_FS_XIP
set_opt (sbi->s_mount_opt, XIP);
#else
- printk("EXT2 xip option not supported\n");
+ ext2_msg(sb, KERN_INFO, "xip option not supported");
#endif
break;
case Opt_quota:
case Opt_usrquota:
case Opt_grpquota:
- printk(KERN_ERR
- "EXT2-fs: quota operations not supported.\n");
-
+ ext2_msg(sb, KERN_INFO,
+ "quota operations not supported");
break;
#endif
case Opt_reservation:
set_opt(sbi->s_mount_opt, RESERVATION);
- printk("reservations ON\n");
+ ext2_msg(sb, KERN_INFO, "reservations ON");
break;
case Opt_noreservation:
clear_opt(sbi->s_mount_opt, RESERVATION);
- printk("reservations OFF\n");
+ ext2_msg(sb, KERN_INFO, "reservations OFF");
break;
case Opt_ignore:
break;
struct ext2_sb_info *sbi = EXT2_SB(sb);
if (le32_to_cpu(es->s_rev_level) > EXT2_MAX_SUPP_REV) {
- printk ("EXT2-fs warning: revision level too high, "
- "forcing read-only mode\n");
+ ext2_msg(sb, KERN_ERR,
+ "error: revision level too high, "
+ "forcing read-only mode");
res = MS_RDONLY;
}
if (read_only)
return res;
if (!(sbi->s_mount_state & EXT2_VALID_FS))
- printk ("EXT2-fs warning: mounting unchecked fs, "
- "running e2fsck is recommended\n");
+ ext2_msg(sb, KERN_WARNING,
+ "warning: mounting unchecked fs, "
+ "running e2fsck is recommended");
else if ((sbi->s_mount_state & EXT2_ERROR_FS))
- printk ("EXT2-fs warning: mounting fs with errors, "
- "running e2fsck is recommended\n");
+ ext2_msg(sb, KERN_WARNING,
+ "warning: mounting fs with errors, "
+ "running e2fsck is recommended");
else if ((__s16) le16_to_cpu(es->s_max_mnt_count) >= 0 &&
le16_to_cpu(es->s_mnt_count) >=
(unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))
- printk ("EXT2-fs warning: maximal mount count reached, "
- "running e2fsck is recommended\n");
+ ext2_msg(sb, KERN_WARNING,
+ "warning: maximal mount count reached, "
+ "running e2fsck is recommended");
else if (le32_to_cpu(es->s_checkinterval) &&
- (le32_to_cpu(es->s_lastcheck) + le32_to_cpu(es->s_checkinterval) <= get_seconds()))
- printk ("EXT2-fs warning: checktime reached, "
- "running e2fsck is recommended\n");
+ (le32_to_cpu(es->s_lastcheck) +
+ le32_to_cpu(es->s_checkinterval) <= get_seconds()))
+ ext2_msg(sb, KERN_WARNING,
+ "warning: checktime reached, "
+ "running e2fsck is recommended");
if (!le16_to_cpu(es->s_max_mnt_count))
es->s_max_mnt_count = cpu_to_le16(EXT2_DFL_MAX_MNT_COUNT);
le16_add_cpu(&es->s_mnt_count, 1);
ext2_write_super(sb);
if (test_opt (sb, DEBUG))
- printk ("[EXT II FS %s, %s, bs=%lu, fs=%lu, gc=%lu, "
- "bpg=%lu, ipg=%lu, mo=%04lx]\n",
+ ext2_msg(sb, KERN_INFO, "%s, %s, bs=%lu, fs=%lu, gc=%lu, "
+ "bpg=%lu, ipg=%lu, mo=%04lx]",
EXT2FS_VERSION, EXT2FS_DATE, sb->s_blocksize,
sbi->s_frag_size,
sbi->s_groups_count,
*/
blocksize = sb_min_blocksize(sb, BLOCK_SIZE);
if (!blocksize) {
- printk ("EXT2-fs: unable to set blocksize\n");
+ ext2_msg(sb, KERN_ERR, "error: unable to set blocksize");
goto failed_sbi;
}
}
if (!(bh = sb_bread(sb, logic_sb_block))) {
- printk ("EXT2-fs: unable to read superblock\n");
+ ext2_msg(sb, KERN_ERR, "error: unable to read superblock");
goto failed_sbi;
}
/*
set_opt(sbi->s_mount_opt, RESERVATION);
- if (!parse_options ((char *) data, sbi))
+ if (!parse_options((char *) data, sb))
goto failed_mount;
sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
(EXT2_HAS_COMPAT_FEATURE(sb, ~0U) ||
EXT2_HAS_RO_COMPAT_FEATURE(sb, ~0U) ||
EXT2_HAS_INCOMPAT_FEATURE(sb, ~0U)))
- printk("EXT2-fs warning: feature flags set on rev 0 fs, "
- "running e2fsck is recommended\n");
+ ext2_msg(sb, KERN_WARNING,
+ "warning: feature flags set on rev 0 fs, "
+ "running e2fsck is recommended");
/*
* Check feature flags regardless of the revision level, since we
* previously didn't change the revision level when setting the flags,
*/
features = EXT2_HAS_INCOMPAT_FEATURE(sb, ~EXT2_FEATURE_INCOMPAT_SUPP);
if (features) {
- printk("EXT2-fs: %s: couldn't mount because of "
- "unsupported optional features (%x).\n",
- sb->s_id, le32_to_cpu(features));
+ ext2_msg(sb, KERN_ERR, "error: couldn't mount because of "
+ "unsupported optional features (%x)",
+ le32_to_cpu(features));
goto failed_mount;
}
if (!(sb->s_flags & MS_RDONLY) &&
(features = EXT2_HAS_RO_COMPAT_FEATURE(sb, ~EXT2_FEATURE_RO_COMPAT_SUPP))){
- printk("EXT2-fs: %s: couldn't mount RDWR because of "
- "unsupported optional features (%x).\n",
- sb->s_id, le32_to_cpu(features));
+ ext2_msg(sb, KERN_ERR, "error: couldn't mount RDWR because of "
+ "unsupported optional features (%x)",
+ le32_to_cpu(features));
goto failed_mount;
}
if (ext2_use_xip(sb) && blocksize != PAGE_SIZE) {
if (!silent)
- printk("XIP: Unsupported blocksize\n");
+ ext2_msg(sb, KERN_ERR,
+ "error: unsupported blocksize for xip");
goto failed_mount;
}
brelse(bh);
if (!sb_set_blocksize(sb, blocksize)) {
- printk(KERN_ERR "EXT2-fs: blocksize too small for device.\n");
+ ext2_msg(sb, KERN_ERR, "error: blocksize is too small");
goto failed_sbi;
}
offset = (sb_block*BLOCK_SIZE) % blocksize;
bh = sb_bread(sb, logic_sb_block);
if(!bh) {
- printk("EXT2-fs: Couldn't read superblock on "
- "2nd try.\n");
+ ext2_msg(sb, KERN_ERR, "error: couldn't read"
+ "superblock on 2nd try");
goto failed_sbi;
}
es = (struct ext2_super_block *) (((char *)bh->b_data) + offset);
sbi->s_es = es;
if (es->s_magic != cpu_to_le16(EXT2_SUPER_MAGIC)) {
- printk ("EXT2-fs: Magic mismatch, very weird !\n");
+ ext2_msg(sb, KERN_ERR, "error: magic mismatch");
goto failed_mount;
}
}
if ((sbi->s_inode_size < EXT2_GOOD_OLD_INODE_SIZE) ||
!is_power_of_2(sbi->s_inode_size) ||
(sbi->s_inode_size > blocksize)) {
- printk ("EXT2-fs: unsupported inode size: %d\n",
+ ext2_msg(sb, KERN_ERR,
+ "error: unsupported inode size: %d",
sbi->s_inode_size);
goto failed_mount;
}
if (sb->s_blocksize != bh->b_size) {
if (!silent)
- printk ("VFS: Unsupported blocksize on dev "
- "%s.\n", sb->s_id);
+ ext2_msg(sb, KERN_ERR, "error: unsupported blocksize");
goto failed_mount;
}
if (sb->s_blocksize != sbi->s_frag_size) {
- printk ("EXT2-fs: fragsize %lu != blocksize %lu (not supported yet)\n",
+ ext2_msg(sb, KERN_ERR,
+ "error: fragsize %lu != blocksize %lu"
+ "(not supported yet)",
sbi->s_frag_size, sb->s_blocksize);
goto failed_mount;
}
if (sbi->s_blocks_per_group > sb->s_blocksize * 8) {
- printk ("EXT2-fs: #blocks per group too big: %lu\n",
+ ext2_msg(sb, KERN_ERR,
+ "error: #blocks per group too big: %lu",
sbi->s_blocks_per_group);
goto failed_mount;
}
if (sbi->s_frags_per_group > sb->s_blocksize * 8) {
- printk ("EXT2-fs: #fragments per group too big: %lu\n",
+ ext2_msg(sb, KERN_ERR,
+ "error: #fragments per group too big: %lu",
sbi->s_frags_per_group);
goto failed_mount;
}
if (sbi->s_inodes_per_group > sb->s_blocksize * 8) {
- printk ("EXT2-fs: #inodes per group too big: %lu\n",
+ ext2_msg(sb, KERN_ERR,
+ "error: #inodes per group too big: %lu",
sbi->s_inodes_per_group);
goto failed_mount;
}
EXT2_DESC_PER_BLOCK(sb);
sbi->s_group_desc = kmalloc (db_count * sizeof (struct buffer_head *), GFP_KERNEL);
if (sbi->s_group_desc == NULL) {
- printk ("EXT2-fs: not enough memory\n");
+ ext2_msg(sb, KERN_ERR, "error: not enough memory");
goto failed_mount;
}
bgl_lock_init(sbi->s_blockgroup_lock);
sbi->s_debts = kcalloc(sbi->s_groups_count, sizeof(*sbi->s_debts), GFP_KERNEL);
if (!sbi->s_debts) {
- printk ("EXT2-fs: not enough memory\n");
+ ext2_msg(sb, KERN_ERR, "error: not enough memory");
goto failed_mount_group_desc;
}
for (i = 0; i < db_count; i++) {
if (!sbi->s_group_desc[i]) {
for (j = 0; j < i; j++)
brelse (sbi->s_group_desc[j]);
- printk ("EXT2-fs: unable to read group descriptors\n");
+ ext2_msg(sb, KERN_ERR,
+ "error: unable to read group descriptors");
goto failed_mount_group_desc;
}
}
if (!ext2_check_descriptors (sb)) {
- printk ("EXT2-fs: group descriptors corrupted!\n");
+ ext2_msg(sb, KERN_ERR, "group descriptors corrupted");
goto failed_mount2;
}
sbi->s_gdb_count = db_count;
ext2_count_dirs(sb));
}
if (err) {
- printk(KERN_ERR "EXT2-fs: insufficient memory\n");
+ ext2_msg(sb, KERN_ERR, "error: insufficient memory");
goto failed_mount3;
}
/*
}
if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
iput(root);
- printk(KERN_ERR "EXT2-fs: corrupt root inode, run e2fsck\n");
+ ext2_msg(sb, KERN_ERR, "error: corrupt root inode, run e2fsck");
goto failed_mount3;
}
sb->s_root = d_alloc_root(root);
if (!sb->s_root) {
iput(root);
- printk(KERN_ERR "EXT2-fs: get root inode failed\n");
+ ext2_msg(sb, KERN_ERR, "error: get root inode failed");
ret = -ENOMEM;
goto failed_mount3;
}
if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL))
- ext2_warning(sb, __func__,
- "mounting ext3 filesystem as ext2");
+ ext2_msg(sb, KERN_WARNING,
+ "warning: mounting ext3 filesystem as ext2");
ext2_setup_super (sb, es, sb->s_flags & MS_RDONLY);
return 0;
cantfind_ext2:
if (!silent)
- printk("VFS: Can't find an ext2 filesystem on dev %s.\n",
- sb->s_id);
+ ext2_msg(sb, KERN_ERR,
+ "error: can't find an ext2 filesystem on dev %s.",
+ sb->s_id);
goto failed_mount;
failed_mount3:
percpu_counter_destroy(&sbi->s_freeblocks_counter);
static int ext2_sync_fs(struct super_block *sb, int wait)
{
struct ext2_super_block *es = EXT2_SB(sb)->s_es;
+ struct buffer_head *sbh = EXT2_SB(sb)->s_sbh;
lock_kernel();
+ if (buffer_write_io_error(sbh)) {
+ /*
+ * Oh, dear. A previous attempt to write the
+ * superblock failed. This could happen because the
+ * USB device was yanked out. Or it could happen to
+ * be a transient write error and maybe the block will
+ * be remapped. Nothing we can do but to retry the
+ * write and hope for the best.
+ */
+ ext2_msg(sb, KERN_ERR,
+ "previous I/O error to superblock detected\n");
+ clear_buffer_write_io_error(sbh);
+ set_buffer_uptodate(sbh);
+ }
+
if (es->s_state & cpu_to_le16(EXT2_VALID_FS)) {
ext2_debug("setting valid to 0\n");
es->s_state &= cpu_to_le16(~EXT2_VALID_FS);
/*
* Allow the "check" option to be passed as a remount option.
*/
- if (!parse_options (data, sbi)) {
+ if (!parse_options(data, sb)) {
err = -EINVAL;
goto restore_opts;
}
EXT2_MOUNT_XIP if not */
if ((ext2_use_xip(sb)) && (sb->s_blocksize != PAGE_SIZE)) {
- printk("XIP: Unsupported blocksize\n");
+ ext2_msg(sb, KERN_WARNING,
+ "warning: unsupported blocksize for xip");
err = -EINVAL;
goto restore_opts;
}
if (((sbi->s_mount_opt & EXT2_MOUNT_XIP) !=
(old_mount_opt & EXT2_MOUNT_XIP)) &&
invalidate_inodes(sb)) {
- ext2_warning(sb, __func__, "refusing change of xip flag "
- "with busy inodes while remounting");
+ ext2_msg(sb, KERN_WARNING, "warning: refusing change of "
+ "xip flag with busy inodes while remounting");
sbi->s_mount_opt &= ~EXT2_MOUNT_XIP;
sbi->s_mount_opt |= old_mount_opt & EXT2_MOUNT_XIP;
}
__le32 ret = EXT2_HAS_RO_COMPAT_FEATURE(sb,
~EXT2_FEATURE_RO_COMPAT_SUPP);
if (ret) {
- printk("EXT2-fs: %s: couldn't remount RDWR because of "
- "unsupported optional features (%x).\n",
- sb->s_id, le32_to_cpu(ret));
+ ext2_msg(sb, KERN_WARNING,
+ "warning: couldn't remount RDWR because of "
+ "unsupported optional features (%x).",
+ le32_to_cpu(ret));
err = -EROFS;
goto restore_opts;
}
if ((sbi->s_mount_opt & EXT2_MOUNT_XIP) &&
!sb->s_bdev->bd_disk->fops->direct_access) {
sbi->s_mount_opt &= (~EXT2_MOUNT_XIP);
- ext2_warning(sb, __func__,
- "ignoring xip option - not supported by bdev");
+ ext2_msg(sb, KERN_WARNING,
+ "warning: ignoring xip option - "
+ "not supported by bdev");
}
}
return ext3_journal_get_write_access(handle, bh);
}
+/*
+ * Truncate blocks that were not used by write. We have to truncate the
+ * pagecache as well so that corresponding buffers get properly unmapped.
+ */
+static void ext3_truncate_failed_write(struct inode *inode)
+{
+ truncate_inode_pages(inode->i_mapping, inode->i_size);
+ ext3_truncate(inode);
+}
+
static int ext3_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
unlock_page(page);
page_cache_release(page);
if (pos + len > inode->i_size)
- ext3_truncate(inode);
+ ext3_truncate_failed_write(inode);
}
if (ret == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries))
goto retry;
page_cache_release(page);
if (pos + len > inode->i_size)
- ext3_truncate(inode);
+ ext3_truncate_failed_write(inode);
return ret ? ret : copied;
}
page_cache_release(page);
if (pos + len > inode->i_size)
- ext3_truncate(inode);
+ ext3_truncate_failed_write(inode);
return ret ? ret : copied;
}
page_cache_release(page);
if (pos + len > inode->i_size)
- ext3_truncate(inode);
+ ext3_truncate_failed_write(inode);
return ret ? ret : copied;
}
goto exit_bh;
if (IS_ERR(gdb = bclean(handle, sb, block))) {
- err = PTR_ERR(bh);
+ err = PTR_ERR(gdb);
goto exit_bh;
}
ext3_journal_dirty_metadata(handle, gdb);
if (is_handle_aborted(handle))
return;
- printk(KERN_ERR "%s: aborting transaction: %s in %s\n",
- caller, errstr, err_fn);
+ printk(KERN_ERR "EXT3-fs: %s: aborting transaction: %s in %s\n",
+ caller, errstr, err_fn);
journal_abort_handle(handle);
}
+void ext3_msg(struct super_block *sb, const char *prefix,
+ const char *fmt, ...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ printk("%sEXT3-fs (%s): ", prefix, sb->s_id);
+ vprintk(fmt, args);
+ printk("\n");
+ va_end(args);
+}
+
/* Deal with the reporting of failure conditions on a filesystem such as
* inconsistencies detected or read IO failures.
*
journal_abort(journal, -EIO);
}
if (test_opt (sb, ERRORS_RO)) {
- printk (KERN_CRIT "Remounting filesystem read-only\n");
+ ext3_msg(sb, KERN_CRIT,
+ "error: remounting filesystem read-only");
sb->s_flags |= MS_RDONLY;
}
ext3_commit_super(sb, es, 1);
if (test_opt(sb, ERRORS_PANIC))
- panic("EXT3-fs (device %s): panic forced after error\n",
+ panic("EXT3-fs (%s): panic forced after error\n",
sb->s_id);
}
return;
errstr = ext3_decode_error(sb, errno, nbuf);
- printk (KERN_CRIT "EXT3-fs error (device %s) in %s: %s\n",
- sb->s_id, function, errstr);
+ ext3_msg(sb, KERN_CRIT, "error in %s: %s", function, errstr);
ext3_handle_error(sb);
}
{
va_list args;
- printk (KERN_CRIT "ext3_abort called.\n");
-
va_start(args, fmt);
- printk(KERN_CRIT "EXT3-fs error (device %s): %s: ",sb->s_id, function);
+ printk(KERN_CRIT "EXT3-fs (%s): error: %s: ", sb->s_id, function);
vprintk(fmt, args);
printk("\n");
va_end(args);
if (test_opt(sb, ERRORS_PANIC))
- panic("EXT3-fs panic from previous error\n");
+ panic("EXT3-fs: panic from previous error\n");
if (sb->s_flags & MS_RDONLY)
return;
- printk(KERN_CRIT "Remounting filesystem read-only\n");
+ ext3_msg(sb, KERN_CRIT,
+ "error: remounting filesystem read-only");
EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS;
sb->s_flags |= MS_RDONLY;
EXT3_SB(sb)->s_mount_opt |= EXT3_MOUNT_ABORT;
va_list args;
va_start(args, fmt);
- printk(KERN_WARNING "EXT3-fs warning (device %s): %s: ",
+ printk(KERN_WARNING "EXT3-fs (%s): warning: %s: ",
sb->s_id, function);
vprintk(fmt, args);
printk("\n");
if (le32_to_cpu(es->s_rev_level) > EXT3_GOOD_OLD_REV)
return;
- ext3_warning(sb, __func__,
- "updating to rev %d because of new feature flag, "
- "running e2fsck is recommended",
- EXT3_DYNAMIC_REV);
+ ext3_msg(sb, KERN_WARNING,
+ "warning: updating to rev %d because of "
+ "new feature flag, running e2fsck is recommended",
+ EXT3_DYNAMIC_REV);
es->s_first_ino = cpu_to_le32(EXT3_GOOD_OLD_FIRST_INO);
es->s_inode_size = cpu_to_le16(EXT3_GOOD_OLD_INODE_SIZE);
/*
* Open the external journal device
*/
-static struct block_device *ext3_blkdev_get(dev_t dev)
+static struct block_device *ext3_blkdev_get(dev_t dev, struct super_block *sb)
{
struct block_device *bdev;
char b[BDEVNAME_SIZE];
return bdev;
fail:
- printk(KERN_ERR "EXT3: failed to open journal device %s: %ld\n",
- __bdevname(dev, b), PTR_ERR(bdev));
+ ext3_msg(sb, "error: failed to open journal device %s: %ld",
+ __bdevname(dev, b), PTR_ERR(bdev));
+
return NULL;
}
{
struct list_head *l;
- printk(KERN_ERR "sb orphan head is %d\n",
+ ext3_msg(sb, KERN_ERR, "error: sb orphan head is %d",
le32_to_cpu(sbi->s_es->s_last_orphan));
- printk(KERN_ERR "sb_info orphan list:\n");
+ ext3_msg(sb, KERN_ERR, "sb_info orphan list:");
list_for_each(l, &sbi->s_orphan) {
struct inode *inode = orphan_list_entry(l);
- printk(KERN_ERR " "
+ ext3_msg(sb, KERN_ERR, " "
"inode %s:%lu at %p: mode %o, nlink %d, next %d\n",
inode->i_sb->s_id, inode->i_ino, inode,
inode->i_mode, inode->i_nlink,
#if defined(CONFIG_QUOTA)
struct ext3_sb_info *sbi = EXT3_SB(sb);
- if (sbi->s_jquota_fmt)
- seq_printf(seq, ",jqfmt=%s",
- (sbi->s_jquota_fmt == QFMT_VFS_OLD) ? "vfsold": "vfsv0");
+ if (sbi->s_jquota_fmt) {
+ char *fmtname = "";
+
+ switch (sbi->s_jquota_fmt) {
+ case QFMT_VFS_OLD:
+ fmtname = "vfsold";
+ break;
+ case QFMT_VFS_V0:
+ fmtname = "vfsv0";
+ break;
+ case QFMT_VFS_V1:
+ fmtname = "vfsv1";
+ break;
+ }
+ seq_printf(seq, ",jqfmt=%s", fmtname);
+ }
if (sbi->s_qf_names[USRQUOTA])
seq_printf(seq, ",usrjquota=%s", sbi->s_qf_names[USRQUOTA]);
if (test_opt(sb, DATA_ERR_ABORT))
seq_puts(seq, ",data_err=abort");
+ if (test_opt(sb, NOLOAD))
+ seq_puts(seq, ",norecovery");
+
ext3_show_quota_options(seq, sb);
return 0;
Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
Opt_data_err_abort, Opt_data_err_ignore,
Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
- Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
- Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota,
- Opt_grpquota
+ Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_jqfmt_vfsv1, Opt_quota,
+ Opt_noquota, Opt_ignore, Opt_barrier, Opt_err, Opt_resize,
+ Opt_usrquota, Opt_grpquota
};
static const match_table_t tokens = {
{Opt_reservation, "reservation"},
{Opt_noreservation, "noreservation"},
{Opt_noload, "noload"},
+ {Opt_noload, "norecovery"},
{Opt_nobh, "nobh"},
{Opt_bh, "bh"},
{Opt_commit, "commit=%u"},
{Opt_grpjquota, "grpjquota=%s"},
{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
+ {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
{Opt_grpquota, "grpquota"},
{Opt_noquota, "noquota"},
{Opt_quota, "quota"},
{Opt_err, NULL},
};
-static ext3_fsblk_t get_sb_block(void **data)
+static ext3_fsblk_t get_sb_block(void **data, struct super_block *sb)
{
ext3_fsblk_t sb_block;
char *options = (char *) *data;
/*todo: use simple_strtoll with >32bit ext3 */
sb_block = simple_strtoul(options, &options, 0);
if (*options && *options != ',') {
- printk("EXT3-fs: Invalid sb specification: %s\n",
+ ext3_msg(sb, "error: invalid sb specification: %s",
(char *) *data);
return 1;
}
#else
case Opt_user_xattr:
case Opt_nouser_xattr:
- printk("EXT3 (no)user_xattr options not supported\n");
+ ext3_msg(sb, KERN_INFO,
+ "(no)user_xattr options not supported");
break;
#endif
#ifdef CONFIG_EXT3_FS_POSIX_ACL
#else
case Opt_acl:
case Opt_noacl:
- printk("EXT3 (no)acl options not supported\n");
+ ext3_msg(sb, KERN_INFO,
+ "(no)acl options not supported");
break;
#endif
case Opt_reservation:
user to specify an existing inode to be the
journal file. */
if (is_remount) {
- printk(KERN_ERR "EXT3-fs: cannot specify "
- "journal on remount\n");
+ ext3_msg(sb, KERN_ERR, "error: cannot specify "
+ "journal on remount");
return 0;
}
set_opt (sbi->s_mount_opt, UPDATE_JOURNAL);
break;
case Opt_journal_inum:
if (is_remount) {
- printk(KERN_ERR "EXT3-fs: cannot specify "
- "journal on remount\n");
+ ext3_msg(sb, KERN_ERR, "error: cannot specify "
+ "journal on remount");
return 0;
}
if (match_int(&args[0], &option))
break;
case Opt_journal_dev:
if (is_remount) {
- printk(KERN_ERR "EXT3-fs: cannot specify "
- "journal on remount\n");
+ ext3_msg(sb, KERN_ERR, "error: cannot specify "
+ "journal on remount");
return 0;
}
if (match_int(&args[0], &option))
if ((sbi->s_mount_opt & EXT3_MOUNT_DATA_FLAGS)
== data_opt)
break;
- printk(KERN_ERR
- "EXT3-fs (device %s): Cannot change "
+ ext3_msg(sb, KERN_ERR,
+ "error: cannot change "
"data mode on remount. The filesystem "
"is mounted in data=%s mode and you "
- "try to remount it in data=%s mode.\n",
- sb->s_id,
+ "try to remount it in data=%s mode.",
data_mode_string(sbi->s_mount_opt &
EXT3_MOUNT_DATA_FLAGS),
data_mode_string(data_opt));
set_qf_name:
if (sb_any_quota_loaded(sb) &&
!sbi->s_qf_names[qtype]) {
- printk(KERN_ERR
- "EXT3-fs: Cannot change journaled "
- "quota options when quota turned on.\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: cannot change journaled "
+ "quota options when quota turned on.");
return 0;
}
qname = match_strdup(&args[0]);
if (!qname) {
- printk(KERN_ERR
- "EXT3-fs: not enough memory for "
- "storing quotafile name.\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: not enough memory for "
+ "storing quotafile name.");
return 0;
}
if (sbi->s_qf_names[qtype] &&
strcmp(sbi->s_qf_names[qtype], qname)) {
- printk(KERN_ERR
- "EXT3-fs: %s quota file already "
- "specified.\n", QTYPE2NAME(qtype));
+ ext3_msg(sb, KERN_ERR,
+ "error: %s quota file already "
+ "specified.", QTYPE2NAME(qtype));
kfree(qname);
return 0;
}
sbi->s_qf_names[qtype] = qname;
if (strchr(sbi->s_qf_names[qtype], '/')) {
- printk(KERN_ERR
- "EXT3-fs: quotafile must be on "
- "filesystem root.\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: quotafile must be on "
+ "filesystem root.");
kfree(sbi->s_qf_names[qtype]);
sbi->s_qf_names[qtype] = NULL;
return 0;
clear_qf_name:
if (sb_any_quota_loaded(sb) &&
sbi->s_qf_names[qtype]) {
- printk(KERN_ERR "EXT3-fs: Cannot change "
+ ext3_msg(sb, KERN_ERR, "error: cannot change "
"journaled quota options when "
- "quota turned on.\n");
+ "quota turned on.");
return 0;
}
/*
goto set_qf_format;
case Opt_jqfmt_vfsv0:
qfmt = QFMT_VFS_V0;
+ goto set_qf_format;
+ case Opt_jqfmt_vfsv1:
+ qfmt = QFMT_VFS_V1;
set_qf_format:
if (sb_any_quota_loaded(sb) &&
sbi->s_jquota_fmt != qfmt) {
- printk(KERN_ERR "EXT3-fs: Cannot change "
+ ext3_msg(sb, KERN_ERR, "error: cannot change "
"journaled quota options when "
- "quota turned on.\n");
+ "quota turned on.");
return 0;
}
sbi->s_jquota_fmt = qfmt;
break;
case Opt_noquota:
if (sb_any_quota_loaded(sb)) {
- printk(KERN_ERR "EXT3-fs: Cannot change quota "
- "options when quota turned on.\n");
+ ext3_msg(sb, KERN_ERR, "error: cannot change "
+ "quota options when quota turned on.");
return 0;
}
clear_opt(sbi->s_mount_opt, QUOTA);
case Opt_quota:
case Opt_usrquota:
case Opt_grpquota:
- printk(KERN_ERR
- "EXT3-fs: quota options not supported.\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: quota options not supported.");
break;
case Opt_usrjquota:
case Opt_grpjquota:
case Opt_offgrpjquota:
case Opt_jqfmt_vfsold:
case Opt_jqfmt_vfsv0:
- printk(KERN_ERR
- "EXT3-fs: journaled quota options not "
- "supported.\n");
+ case Opt_jqfmt_vfsv1:
+ ext3_msg(sb, KERN_ERR,
+ "error: journaled quota options not "
+ "supported.");
break;
case Opt_noquota:
break;
break;
case Opt_resize:
if (!is_remount) {
- printk("EXT3-fs: resize option only available "
- "for remount\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: resize option only available "
+ "for remount");
return 0;
}
if (match_int(&args[0], &option) != 0)
clear_opt(sbi->s_mount_opt, NOBH);
break;
default:
- printk (KERN_ERR
- "EXT3-fs: Unrecognized mount option \"%s\" "
- "or missing value\n", p);
+ ext3_msg(sb, KERN_ERR,
+ "error: unrecognized mount option \"%s\" "
+ "or missing value", p);
return 0;
}
}
(sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA)) ||
(sbi->s_qf_names[GRPQUOTA] &&
(sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA))) {
- printk(KERN_ERR "EXT3-fs: old and new quota "
- "format mixing.\n");
+ ext3_msg(sb, KERN_ERR, "error: old and new quota "
+ "format mixing.");
return 0;
}
if (!sbi->s_jquota_fmt) {
- printk(KERN_ERR "EXT3-fs: journaled quota format "
- "not specified.\n");
+ ext3_msg(sb, KERN_ERR, "error: journaled quota format "
+ "not specified.");
return 0;
}
} else {
if (sbi->s_jquota_fmt) {
- printk(KERN_ERR "EXT3-fs: journaled quota format "
+ ext3_msg(sb, KERN_ERR, "error: journaled quota format "
"specified with no journaling "
- "enabled.\n");
+ "enabled.");
return 0;
}
}
int res = 0;
if (le32_to_cpu(es->s_rev_level) > EXT3_MAX_SUPP_REV) {
- printk (KERN_ERR "EXT3-fs warning: revision level too high, "
- "forcing read-only mode\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: revision level too high, "
+ "forcing read-only mode");
res = MS_RDONLY;
}
if (read_only)
return res;
if (!(sbi->s_mount_state & EXT3_VALID_FS))
- printk (KERN_WARNING "EXT3-fs warning: mounting unchecked fs, "
- "running e2fsck is recommended\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: mounting unchecked fs, "
+ "running e2fsck is recommended");
else if ((sbi->s_mount_state & EXT3_ERROR_FS))
- printk (KERN_WARNING
- "EXT3-fs warning: mounting fs with errors, "
- "running e2fsck is recommended\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: mounting fs with errors, "
+ "running e2fsck is recommended");
else if ((__s16) le16_to_cpu(es->s_max_mnt_count) >= 0 &&
le16_to_cpu(es->s_mnt_count) >=
(unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))
- printk (KERN_WARNING
- "EXT3-fs warning: maximal mount count reached, "
- "running e2fsck is recommended\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: maximal mount count reached, "
+ "running e2fsck is recommended");
else if (le32_to_cpu(es->s_checkinterval) &&
(le32_to_cpu(es->s_lastcheck) +
le32_to_cpu(es->s_checkinterval) <= get_seconds()))
- printk (KERN_WARNING
- "EXT3-fs warning: checktime reached, "
- "running e2fsck is recommended\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: checktime reached, "
+ "running e2fsck is recommended");
#if 0
/* @@@ We _will_ want to clear the valid bit if we find
inconsistencies, to force a fsck at reboot. But for
ext3_commit_super(sb, es, 1);
if (test_opt(sb, DEBUG))
- printk(KERN_INFO "[EXT3 FS bs=%lu, gc=%lu, "
- "bpg=%lu, ipg=%lu, mo=%04lx]\n",
+ ext3_msg(sb, KERN_INFO, "[bs=%lu, gc=%lu, "
+ "bpg=%lu, ipg=%lu, mo=%04lx]",
sb->s_blocksize,
sbi->s_groups_count,
EXT3_BLOCKS_PER_GROUP(sb),
EXT3_INODES_PER_GROUP(sb),
sbi->s_mount_opt);
- printk(KERN_INFO "EXT3 FS on %s, ", sb->s_id);
if (EXT3_SB(sb)->s_journal->j_inode == NULL) {
char b[BDEVNAME_SIZE];
-
- printk("external journal on %s\n",
+ ext3_msg(sb, KERN_INFO, "using external journal on %s",
bdevname(EXT3_SB(sb)->s_journal->j_dev, b));
} else {
- printk("internal journal\n");
+ ext3_msg(sb, KERN_INFO, "using internal journal");
}
return res;
}
}
if (bdev_read_only(sb->s_bdev)) {
- printk(KERN_ERR "EXT3-fs: write access "
- "unavailable, skipping orphan cleanup.\n");
+ ext3_msg(sb, KERN_ERR, "error: write access "
+ "unavailable, skipping orphan cleanup.");
return;
}
}
if (s_flags & MS_RDONLY) {
- printk(KERN_INFO "EXT3-fs: %s: orphan cleanup on readonly fs\n",
- sb->s_id);
+ ext3_msg(sb, KERN_INFO, "orphan cleanup on readonly fs");
sb->s_flags &= ~MS_RDONLY;
}
#ifdef CONFIG_QUOTA
if (EXT3_SB(sb)->s_qf_names[i]) {
int ret = ext3_quota_on_mount(sb, i);
if (ret < 0)
- printk(KERN_ERR
- "EXT3-fs: Cannot turn on journaled "
- "quota: error %d\n", ret);
+ ext3_msg(sb, KERN_ERR,
+ "error: cannot turn on journaled "
+ "quota: %d", ret);
}
}
#endif
#define PLURAL(x) (x), ((x)==1) ? "" : "s"
if (nr_orphans)
- printk(KERN_INFO "EXT3-fs: %s: %d orphan inode%s deleted\n",
- sb->s_id, PLURAL(nr_orphans));
+ ext3_msg(sb, KERN_INFO, "%d orphan inode%s deleted",
+ PLURAL(nr_orphans));
if (nr_truncates)
- printk(KERN_INFO "EXT3-fs: %s: %d truncate%s cleaned up\n",
- sb->s_id, PLURAL(nr_truncates));
+ ext3_msg(sb, KERN_INFO, "%d truncate%s cleaned up",
+ PLURAL(nr_truncates));
#ifdef CONFIG_QUOTA
/* Turn quotas off */
for (i = 0; i < MAXQUOTAS; i++) {
struct ext3_super_block *es = NULL;
struct ext3_sb_info *sbi;
ext3_fsblk_t block;
- ext3_fsblk_t sb_block = get_sb_block(&data);
+ ext3_fsblk_t sb_block = get_sb_block(&data, sb);
ext3_fsblk_t logic_sb_block;
unsigned long offset = 0;
unsigned int journal_inum = 0;
blocksize = sb_min_blocksize(sb, EXT3_MIN_BLOCK_SIZE);
if (!blocksize) {
- printk(KERN_ERR "EXT3-fs: unable to set blocksize\n");
+ ext3_msg(sb, KERN_ERR, "error: unable to set blocksize");
goto out_fail;
}
}
if (!(bh = sb_bread(sb, logic_sb_block))) {
- printk (KERN_ERR "EXT3-fs: unable to read superblock\n");
+ ext3_msg(sb, KERN_ERR, "error: unable to read superblock");
goto out_fail;
}
/*
(EXT3_HAS_COMPAT_FEATURE(sb, ~0U) ||
EXT3_HAS_RO_COMPAT_FEATURE(sb, ~0U) ||
EXT3_HAS_INCOMPAT_FEATURE(sb, ~0U)))
- printk(KERN_WARNING
- "EXT3-fs warning: feature flags set on rev 0 fs, "
- "running e2fsck is recommended\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: feature flags set on rev 0 fs, "
+ "running e2fsck is recommended");
/*
* Check feature flags regardless of the revision level, since we
* previously didn't change the revision level when setting the flags,
*/
features = EXT3_HAS_INCOMPAT_FEATURE(sb, ~EXT3_FEATURE_INCOMPAT_SUPP);
if (features) {
- printk(KERN_ERR "EXT3-fs: %s: couldn't mount because of "
- "unsupported optional features (%x).\n",
- sb->s_id, le32_to_cpu(features));
+ ext3_msg(sb, KERN_ERR,
+ "error: couldn't mount because of unsupported "
+ "optional features (%x)", le32_to_cpu(features));
goto failed_mount;
}
features = EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP);
if (!(sb->s_flags & MS_RDONLY) && features) {
- printk(KERN_ERR "EXT3-fs: %s: couldn't mount RDWR because of "
- "unsupported optional features (%x).\n",
- sb->s_id, le32_to_cpu(features));
+ ext3_msg(sb, KERN_ERR,
+ "error: couldn't mount RDWR because of unsupported "
+ "optional features (%x)", le32_to_cpu(features));
goto failed_mount;
}
blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);
if (blocksize < EXT3_MIN_BLOCK_SIZE ||
blocksize > EXT3_MAX_BLOCK_SIZE) {
- printk(KERN_ERR
- "EXT3-fs: Unsupported filesystem blocksize %d on %s.\n",
- blocksize, sb->s_id);
+ ext3_msg(sb, KERN_ERR,
+ "error: couldn't mount because of unsupported "
+ "filesystem blocksize %d", blocksize);
goto failed_mount;
}
* than the hardware sectorsize for the machine.
*/
if (blocksize < hblock) {
- printk(KERN_ERR "EXT3-fs: blocksize %d too small for "
- "device blocksize %d.\n", blocksize, hblock);
+ ext3_msg(sb, KERN_ERR,
+ "error: fsblocksize %d too small for "
+ "hardware sectorsize %d", blocksize, hblock);
goto failed_mount;
}
brelse (bh);
if (!sb_set_blocksize(sb, blocksize)) {
- printk(KERN_ERR "EXT3-fs: bad blocksize %d.\n",
- blocksize);
+ ext3_msg(sb, KERN_ERR,
+ "error: bad blocksize %d", blocksize);
goto out_fail;
}
logic_sb_block = (sb_block * EXT3_MIN_BLOCK_SIZE) / blocksize;
offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize;
bh = sb_bread(sb, logic_sb_block);
if (!bh) {
- printk(KERN_ERR
- "EXT3-fs: Can't read superblock on 2nd try.\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: can't read superblock on 2nd try");
goto failed_mount;
}
es = (struct ext3_super_block *)(((char *)bh->b_data) + offset);
sbi->s_es = es;
if (es->s_magic != cpu_to_le16(EXT3_SUPER_MAGIC)) {
- printk (KERN_ERR
- "EXT3-fs: Magic mismatch, very weird !\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: magic mismatch");
goto failed_mount;
}
}
if ((sbi->s_inode_size < EXT3_GOOD_OLD_INODE_SIZE) ||
(!is_power_of_2(sbi->s_inode_size)) ||
(sbi->s_inode_size > blocksize)) {
- printk (KERN_ERR
- "EXT3-fs: unsupported inode size: %d\n",
+ ext3_msg(sb, KERN_ERR,
+ "error: unsupported inode size: %d",
sbi->s_inode_size);
goto failed_mount;
}
sbi->s_frag_size = EXT3_MIN_FRAG_SIZE <<
le32_to_cpu(es->s_log_frag_size);
if (blocksize != sbi->s_frag_size) {
- printk(KERN_ERR
- "EXT3-fs: fragsize %lu != blocksize %u (unsupported)\n",
+ ext3_msg(sb, KERN_ERR,
+ "error: fragsize %lu != blocksize %u (unsupported)",
sbi->s_frag_size, blocksize);
goto failed_mount;
}
}
if (sbi->s_blocks_per_group > blocksize * 8) {
- printk (KERN_ERR
- "EXT3-fs: #blocks per group too big: %lu\n",
+ ext3_msg(sb, KERN_ERR,
+ "#blocks per group too big: %lu",
sbi->s_blocks_per_group);
goto failed_mount;
}
if (sbi->s_frags_per_group > blocksize * 8) {
- printk (KERN_ERR
- "EXT3-fs: #fragments per group too big: %lu\n",
+ ext3_msg(sb, KERN_ERR,
+ "error: #fragments per group too big: %lu",
sbi->s_frags_per_group);
goto failed_mount;
}
if (sbi->s_inodes_per_group > blocksize * 8) {
- printk (KERN_ERR
- "EXT3-fs: #inodes per group too big: %lu\n",
+ ext3_msg(sb, KERN_ERR,
+ "error: #inodes per group too big: %lu",
sbi->s_inodes_per_group);
goto failed_mount;
}
if (le32_to_cpu(es->s_blocks_count) >
(sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) {
- printk(KERN_ERR "EXT3-fs: filesystem on %s:"
- " too large to mount safely\n", sb->s_id);
+ ext3_msg(sb, KERN_ERR,
+ "error: filesystem is too large to mount safely");
if (sizeof(sector_t) < 8)
- printk(KERN_WARNING "EXT3-fs: CONFIG_LBDAF not "
- "enabled\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: CONFIG_LBDAF not enabled");
goto failed_mount;
}
sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *),
GFP_KERNEL);
if (sbi->s_group_desc == NULL) {
- printk (KERN_ERR "EXT3-fs: not enough memory\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: not enough memory");
goto failed_mount;
}
block = descriptor_loc(sb, logic_sb_block, i);
sbi->s_group_desc[i] = sb_bread(sb, block);
if (!sbi->s_group_desc[i]) {
- printk (KERN_ERR "EXT3-fs: "
- "can't read group descriptor %d\n", i);
+ ext3_msg(sb, KERN_ERR,
+ "error: can't read group descriptor %d", i);
db_count = i;
goto failed_mount2;
}
}
if (!ext3_check_descriptors (sb)) {
- printk(KERN_ERR "EXT3-fs: group descriptors corrupted!\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: group descriptors corrupted");
goto failed_mount2;
}
sbi->s_gdb_count = db_count;
ext3_count_dirs(sb));
}
if (err) {
- printk(KERN_ERR "EXT3-fs: insufficient memory\n");
+ ext3_msg(sb, KERN_ERR, "error: insufficient memory");
goto failed_mount3;
}
goto failed_mount3;
} else {
if (!silent)
- printk (KERN_ERR
- "ext3: No journal on filesystem on %s\n",
- sb->s_id);
+ ext3_msg(sb, KERN_ERR,
+ "error: no journal found. "
+ "mounting ext3 over ext2?");
goto failed_mount3;
}
case EXT3_MOUNT_WRITEBACK_DATA:
if (!journal_check_available_features
(sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)) {
- printk(KERN_ERR "EXT3-fs: Journal does not support "
- "requested data journaling mode\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: journal does not support "
+ "requested data journaling mode");
goto failed_mount4;
}
default:
if (test_opt(sb, NOBH)) {
if (!(test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)) {
- printk(KERN_WARNING "EXT3-fs: Ignoring nobh option - "
- "its supported only with writeback mode\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: ignoring nobh option - "
+ "it is supported only with writeback mode");
clear_opt(sbi->s_mount_opt, NOBH);
}
}
root = ext3_iget(sb, EXT3_ROOT_INO);
if (IS_ERR(root)) {
- printk(KERN_ERR "EXT3-fs: get root inode failed\n");
+ ext3_msg(sb, KERN_ERR, "error: get root inode failed");
ret = PTR_ERR(root);
goto failed_mount4;
}
if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
iput(root);
- printk(KERN_ERR "EXT3-fs: corrupt root inode, run e2fsck\n");
+ ext3_msg(sb, KERN_ERR, "error: corrupt root inode, run e2fsck");
goto failed_mount4;
}
sb->s_root = d_alloc_root(root);
if (!sb->s_root) {
- printk(KERN_ERR "EXT3-fs: get root dentry failed\n");
+ ext3_msg(sb, KERN_ERR, "error: get root dentry failed");
iput(root);
ret = -ENOMEM;
goto failed_mount4;
ext3_orphan_cleanup(sb, es);
EXT3_SB(sb)->s_mount_state &= ~EXT3_ORPHAN_FS;
if (needs_recovery)
- printk (KERN_INFO "EXT3-fs: recovery complete.\n");
+ ext3_msg(sb, KERN_INFO, "recovery complete");
ext3_mark_recovery_complete(sb, es);
- printk (KERN_INFO "EXT3-fs: mounted filesystem with %s data mode.\n",
+ ext3_msg(sb, KERN_INFO, "mounted filesystem with %s data mode",
test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA ? "journal":
test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA ? "ordered":
"writeback");
cantfind_ext3:
if (!silent)
- printk(KERN_ERR "VFS: Can't find ext3 filesystem on dev %s.\n",
+ ext3_msg(sb, KERN_INFO,
+ "error: can't find ext3 filesystem on dev %s.",
sb->s_id);
goto failed_mount;
journal_inode = ext3_iget(sb, journal_inum);
if (IS_ERR(journal_inode)) {
- printk(KERN_ERR "EXT3-fs: no journal found.\n");
+ ext3_msg(sb, KERN_ERR, "error: no journal found");
return NULL;
}
if (!journal_inode->i_nlink) {
make_bad_inode(journal_inode);
iput(journal_inode);
- printk(KERN_ERR "EXT3-fs: journal inode is deleted.\n");
+ ext3_msg(sb, KERN_ERR, "error: journal inode is deleted");
return NULL;
}
jbd_debug(2, "Journal inode found at %p: %Ld bytes\n",
journal_inode, journal_inode->i_size);
if (!S_ISREG(journal_inode->i_mode)) {
- printk(KERN_ERR "EXT3-fs: invalid journal inode.\n");
+ ext3_msg(sb, KERN_ERR, "error: invalid journal inode");
iput(journal_inode);
return NULL;
}
journal = journal_init_inode(journal_inode);
if (!journal) {
- printk(KERN_ERR "EXT3-fs: Could not load journal inode\n");
+ ext3_msg(sb, KERN_ERR, "error: could not load journal inode");
iput(journal_inode);
return NULL;
}
struct ext3_super_block * es;
struct block_device *bdev;
- bdev = ext3_blkdev_get(j_dev);
+ bdev = ext3_blkdev_get(j_dev, sb);
if (bdev == NULL)
return NULL;
if (bd_claim(bdev, sb)) {
- printk(KERN_ERR
- "EXT3: failed to claim external journal device.\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: failed to claim external journal device");
blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
return NULL;
}
blocksize = sb->s_blocksize;
hblock = bdev_logical_block_size(bdev);
if (blocksize < hblock) {
- printk(KERN_ERR
- "EXT3-fs: blocksize too small for journal device.\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: blocksize too small for journal device");
goto out_bdev;
}
offset = EXT3_MIN_BLOCK_SIZE % blocksize;
set_blocksize(bdev, blocksize);
if (!(bh = __bread(bdev, sb_block, blocksize))) {
- printk(KERN_ERR "EXT3-fs: couldn't read superblock of "
- "external journal\n");
+ ext3_msg(sb, KERN_ERR, "error: couldn't read superblock of "
+ "external journal");
goto out_bdev;
}
if ((le16_to_cpu(es->s_magic) != EXT3_SUPER_MAGIC) ||
!(le32_to_cpu(es->s_feature_incompat) &
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
- printk(KERN_ERR "EXT3-fs: external journal has "
- "bad superblock\n");
+ ext3_msg(sb, KERN_ERR, "error: external journal has "
+ "bad superblock");
brelse(bh);
goto out_bdev;
}
if (memcmp(EXT3_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) {
- printk(KERN_ERR "EXT3-fs: journal UUID does not match\n");
+ ext3_msg(sb, KERN_ERR, "error: journal UUID does not match");
brelse(bh);
goto out_bdev;
}
journal = journal_init_dev(bdev, sb->s_bdev,
start, len, blocksize);
if (!journal) {
- printk(KERN_ERR "EXT3-fs: failed to create device journal\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: failed to create device journal");
goto out_bdev;
}
journal->j_private = sb;
ll_rw_block(READ, 1, &journal->j_sb_buffer);
wait_on_buffer(journal->j_sb_buffer);
if (!buffer_uptodate(journal->j_sb_buffer)) {
- printk(KERN_ERR "EXT3-fs: I/O error on journal device\n");
+ ext3_msg(sb, KERN_ERR, "I/O error on journal device");
goto out_journal;
}
if (be32_to_cpu(journal->j_superblock->s_nr_users) != 1) {
- printk(KERN_ERR "EXT3-fs: External journal has more than one "
- "user (unsupported) - %d\n",
+ ext3_msg(sb, KERN_ERR,
+ "error: external journal has more than one "
+ "user (unsupported) - %d",
be32_to_cpu(journal->j_superblock->s_nr_users));
goto out_journal;
}
if (journal_devnum &&
journal_devnum != le32_to_cpu(es->s_journal_dev)) {
- printk(KERN_INFO "EXT3-fs: external journal device major/minor "
- "numbers have changed\n");
+ ext3_msg(sb, KERN_INFO, "external journal device major/minor "
+ "numbers have changed");
journal_dev = new_decode_dev(journal_devnum);
} else
journal_dev = new_decode_dev(le32_to_cpu(es->s_journal_dev));
if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER)) {
if (sb->s_flags & MS_RDONLY) {
- printk(KERN_INFO "EXT3-fs: INFO: recovery "
- "required on readonly filesystem.\n");
+ ext3_msg(sb, KERN_INFO,
+ "recovery required on readonly filesystem");
if (really_read_only) {
- printk(KERN_ERR "EXT3-fs: write access "
- "unavailable, cannot proceed.\n");
+ ext3_msg(sb, KERN_ERR, "error: write access "
+ "unavailable, cannot proceed");
return -EROFS;
}
- printk (KERN_INFO "EXT3-fs: write access will "
- "be enabled during recovery.\n");
+ ext3_msg(sb, KERN_INFO,
+ "write access will be enabled during recovery");
}
}
if (journal_inum && journal_dev) {
- printk(KERN_ERR "EXT3-fs: filesystem has both journal "
- "and inode journals!\n");
+ ext3_msg(sb, KERN_ERR, "error: filesystem has both journal "
+ "and inode journals");
return -EINVAL;
}
if (!really_read_only && test_opt(sb, UPDATE_JOURNAL)) {
err = journal_update_format(journal);
if (err) {
- printk(KERN_ERR "EXT3-fs: error updating journal.\n");
+ ext3_msg(sb, KERN_ERR, "error updating journal");
journal_destroy(journal);
return err;
}
err = journal_load(journal);
if (err) {
- printk(KERN_ERR "EXT3-fs: error loading journal.\n");
+ ext3_msg(sb, KERN_ERR, "error loading journal");
journal_destroy(journal);
return err;
}
return 0;
}
-static int ext3_create_journal(struct super_block * sb,
- struct ext3_super_block * es,
+static int ext3_create_journal(struct super_block *sb,
+ struct ext3_super_block *es,
unsigned int journal_inum)
{
journal_t *journal;
int err;
if (sb->s_flags & MS_RDONLY) {
- printk(KERN_ERR "EXT3-fs: readonly filesystem when trying to "
- "create journal.\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: readonly filesystem when trying to "
+ "create journal");
return -EROFS;
}
if (!journal)
return -EINVAL;
- printk(KERN_INFO "EXT3-fs: creating new journal on inode %u\n",
+ ext3_msg(sb, KERN_INFO, "creating new journal on inode %u",
journal_inum);
err = journal_create(journal);
if (err) {
- printk(KERN_ERR "EXT3-fs: error creating journal.\n");
+ ext3_msg(sb, KERN_ERR, "error creating journal");
journal_destroy(journal);
return -EIO;
}
* has recorded an error from a previous lifetime, move that error to the
* main filesystem now.
*/
-static void ext3_clear_journal_err(struct super_block * sb,
- struct ext3_super_block * es)
+static void ext3_clear_journal_err(struct super_block *sb,
+ struct ext3_super_block *es)
{
journal_t *journal;
int j_errno;
__le32 ret;
if ((ret = EXT3_HAS_RO_COMPAT_FEATURE(sb,
~EXT3_FEATURE_RO_COMPAT_SUPP))) {
- printk(KERN_WARNING "EXT3-fs: %s: couldn't "
- "remount RDWR because of unsupported "
- "optional features (%x).\n",
- sb->s_id, le32_to_cpu(ret));
+ ext3_msg(sb, KERN_WARNING,
+ "warning: couldn't remount RDWR "
+ "because of unsupported optional "
+ "features (%x)", le32_to_cpu(ret));
err = -EROFS;
goto restore_opts;
}
* require a full umount/remount for now.
*/
if (es->s_last_orphan) {
- printk(KERN_WARNING "EXT3-fs: %s: couldn't "
+ ext3_msg(sb, KERN_WARNING, "warning: couldn't "
"remount RDWR because of unprocessed "
"orphan inode list. Please "
- "umount/remount instead.\n",
- sb->s_id);
+ "umount/remount instead.");
err = -EINVAL;
goto restore_opts;
}
buf->f_bsize = sb->s_blocksize;
buf->f_blocks = le32_to_cpu(es->s_blocks_count) - sbi->s_overhead_last;
buf->f_bfree = percpu_counter_sum_positive(&sbi->s_freeblocks_counter);
- es->s_free_blocks_count = cpu_to_le32(buf->f_bfree);
buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count);
if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count))
buf->f_bavail = 0;
buf->f_files = le32_to_cpu(es->s_inodes_count);
buf->f_ffree = percpu_counter_sum_positive(&sbi->s_freeinodes_counter);
- es->s_free_inodes_count = cpu_to_le32(buf->f_ffree);
buf->f_namelen = EXT3_NAME_LEN;
fsid = le64_to_cpup((void *)es->s_uuid) ^
le64_to_cpup((void *)es->s_uuid + sizeof(u64));
if (EXT3_SB(sb)->s_qf_names[type]) {
/* Quotafile not of fs root? */
if (path.dentry->d_parent != sb->s_root)
- printk(KERN_WARNING
- "EXT3-fs: Quota file not on filesystem root. "
- "Journaled quota will not work.\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: Quota file not on filesystem root. "
+ "Journaled quota will not work.");
}
/*
handle_t *handle = journal_current_handle();
if (!handle) {
- printk(KERN_WARNING "EXT3-fs: Quota write (off=%Lu, len=%Lu)"
- " cancelled because transaction is not started.\n",
+ ext3_msg(sb, KERN_WARNING,
+ "warning: quota write (off=%llu, len=%llu)"
+ " cancelled because transaction is not started.",
(unsigned long long)off, (unsigned long long)len);
return -EIO;
}
if (error)
goto cleanup;
+ error = ext3_journal_get_write_access(handle, is.iloc.bh);
+ if (error)
+ goto cleanup;
+
if (EXT3_I(inode)->i_state & EXT3_STATE_NEW) {
struct ext3_inode *raw_inode = ext3_raw_inode(&is.iloc);
memset(raw_inode, 0, EXT3_SB(inode->i_sb)->s_inode_size);
if (flags & XATTR_CREATE)
goto cleanup;
}
- error = ext3_journal_get_write_access(handle, is.iloc.bh);
- if (error)
- goto cleanup;
if (!value) {
if (!is.s.not_found)
error = ext3_xattr_ibody_set(handle, inode, &i, &is);
#if defined(CONFIG_QUOTA)
struct ext4_sb_info *sbi = EXT4_SB(sb);
- if (sbi->s_jquota_fmt)
- seq_printf(seq, ",jqfmt=%s",
- (sbi->s_jquota_fmt == QFMT_VFS_OLD) ? "vfsold" : "vfsv0");
+ if (sbi->s_jquota_fmt) {
+ char *fmtname = "";
+
+ switch (sbi->s_jquota_fmt) {
+ case QFMT_VFS_OLD:
+ fmtname = "vfsold";
+ break;
+ case QFMT_VFS_V0:
+ fmtname = "vfsv0";
+ break;
+ case QFMT_VFS_V1:
+ fmtname = "vfsv1";
+ break;
+ }
+ seq_printf(seq, ",jqfmt=%s", fmtname);
+ }
if (sbi->s_qf_names[USRQUOTA])
seq_printf(seq, ",usrjquota=%s", sbi->s_qf_names[USRQUOTA]);
Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
Opt_data_err_abort, Opt_data_err_ignore,
Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
- Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
- Opt_ignore, Opt_barrier, Opt_nobarrier, Opt_err, Opt_resize,
- Opt_usrquota, Opt_grpquota, Opt_i_version,
+ Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_jqfmt_vfsv1, Opt_quota,
+ Opt_noquota, Opt_ignore, Opt_barrier, Opt_nobarrier, Opt_err,
+ Opt_resize, Opt_usrquota, Opt_grpquota, Opt_i_version,
Opt_stripe, Opt_delalloc, Opt_nodelalloc,
Opt_block_validity, Opt_noblock_validity,
Opt_inode_readahead_blks, Opt_journal_ioprio,
{Opt_grpjquota, "grpjquota=%s"},
{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
+ {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
{Opt_grpquota, "grpquota"},
{Opt_noquota, "noquota"},
{Opt_quota, "quota"},
goto set_qf_format;
case Opt_jqfmt_vfsv0:
qfmt = QFMT_VFS_V0;
+ goto set_qf_format;
+ case Opt_jqfmt_vfsv1:
+ qfmt = QFMT_VFS_V1;
set_qf_format:
if (sb_any_quota_loaded(sb) &&
sbi->s_jquota_fmt != qfmt) {
case Opt_offgrpjquota:
case Opt_jqfmt_vfsold:
case Opt_jqfmt_vfsv0:
+ case Opt_jqfmt_vfsv1:
ext4_msg(sb, KERN_ERR,
"journaled quota options not supported");
break;
static DEFINE_MUTEX(zisofs_zlib_lock);
/*
- * When decompressing, we typically obtain more than one page
- * per reference. We inject the additional pages into the page
- * cache as a form of readahead.
+ * Read data of @inode from @block_start to @block_end and uncompress
+ * to one zisofs block. Store the data in the @pages array with @pcount
+ * entries. Start storing at offset @poffset of the first page.
*/
-static int zisofs_readpage(struct file *file, struct page *page)
+static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start,
+ loff_t block_end, int pcount,
+ struct page **pages, unsigned poffset,
+ int *errp)
{
- struct inode *inode = file->f_path.dentry->d_inode;
- struct address_space *mapping = inode->i_mapping;
- unsigned int maxpage, xpage, fpage, blockindex;
- unsigned long offset;
- unsigned long blockptr, blockendptr, cstart, cend, csize;
- struct buffer_head *bh, *ptrbh[2];
- unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
- unsigned int bufshift = ISOFS_BUFFER_BITS(inode);
- unsigned long bufmask = bufsize - 1;
- int err = -EIO;
- int i;
- unsigned int header_size = ISOFS_I(inode)->i_format_parm[0];
unsigned int zisofs_block_shift = ISOFS_I(inode)->i_format_parm[1];
- /* unsigned long zisofs_block_size = 1UL << zisofs_block_shift; */
- unsigned int zisofs_block_page_shift = zisofs_block_shift-PAGE_CACHE_SHIFT;
- unsigned long zisofs_block_pages = 1UL << zisofs_block_page_shift;
- unsigned long zisofs_block_page_mask = zisofs_block_pages-1;
- struct page *pages[zisofs_block_pages];
- unsigned long index = page->index;
- int indexblocks;
-
- /* We have already been given one page, this is the one
- we must do. */
- xpage = index & zisofs_block_page_mask;
- pages[xpage] = page;
-
- /* The remaining pages need to be allocated and inserted */
- offset = index & ~zisofs_block_page_mask;
- blockindex = offset >> zisofs_block_page_shift;
- maxpage = (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-
- /*
- * If this page is wholly outside i_size we just return zero;
- * do_generic_file_read() will handle this for us
- */
- if (page->index >= maxpage) {
- SetPageUptodate(page);
- unlock_page(page);
+ unsigned int bufsize = ISOFS_BUFFER_SIZE(inode);
+ unsigned int bufshift = ISOFS_BUFFER_BITS(inode);
+ unsigned int bufmask = bufsize - 1;
+ int i, block_size = block_end - block_start;
+ z_stream stream = { .total_out = 0,
+ .avail_in = 0,
+ .avail_out = 0, };
+ int zerr;
+ int needblocks = (block_size + (block_start & bufmask) + bufmask)
+ >> bufshift;
+ int haveblocks;
+ blkcnt_t blocknum;
+ struct buffer_head *bhs[needblocks + 1];
+ int curbh, curpage;
+
+ if (block_size > deflateBound(1UL << zisofs_block_shift)) {
+ *errp = -EIO;
return 0;
}
-
- maxpage = min(zisofs_block_pages, maxpage-offset);
-
- for ( i = 0 ; i < maxpage ; i++, offset++ ) {
- if ( i != xpage ) {
- pages[i] = grab_cache_page_nowait(mapping, offset);
- }
- page = pages[i];
- if ( page ) {
- ClearPageError(page);
- kmap(page);
+ /* Empty block? */
+ if (block_size == 0) {
+ for ( i = 0 ; i < pcount ; i++ ) {
+ if (!pages[i])
+ continue;
+ memset(page_address(pages[i]), 0, PAGE_CACHE_SIZE);
+ flush_dcache_page(pages[i]);
+ SetPageUptodate(pages[i]);
}
+ return ((loff_t)pcount) << PAGE_CACHE_SHIFT;
}
- /* This is the last page filled, plus one; used in case of abort. */
- fpage = 0;
+ /* Because zlib is not thread-safe, do all the I/O at the top. */
+ blocknum = block_start >> bufshift;
+ memset(bhs, 0, (needblocks + 1) * sizeof(struct buffer_head *));
+ haveblocks = isofs_get_blocks(inode, blocknum, bhs, needblocks);
+ ll_rw_block(READ, haveblocks, bhs);
- /* Find the pointer to this specific chunk */
- /* Note: we're not using isonum_731() here because the data is known aligned */
- /* Note: header_size is in 32-bit words (4 bytes) */
- blockptr = (header_size + blockindex) << 2;
- blockendptr = blockptr + 4;
+ curbh = 0;
+ curpage = 0;
+ /*
+ * First block is special since it may be fractional. We also wait for
+ * it before grabbing the zlib mutex; odds are that the subsequent
+ * blocks are going to come in in short order so we don't hold the zlib
+ * mutex longer than necessary.
+ */
- indexblocks = ((blockptr^blockendptr) >> bufshift) ? 2 : 1;
- ptrbh[0] = ptrbh[1] = NULL;
+ if (!bhs[0])
+ goto b_eio;
- if ( isofs_get_blocks(inode, blockptr >> bufshift, ptrbh, indexblocks) != indexblocks ) {
- if ( ptrbh[0] ) brelse(ptrbh[0]);
- printk(KERN_DEBUG "zisofs: Null buffer on reading block table, inode = %lu, block = %lu\n",
- inode->i_ino, blockptr >> bufshift);
- goto eio;
- }
- ll_rw_block(READ, indexblocks, ptrbh);
-
- bh = ptrbh[0];
- if ( !bh || (wait_on_buffer(bh), !buffer_uptodate(bh)) ) {
- printk(KERN_DEBUG "zisofs: Failed to read block table, inode = %lu, block = %lu\n",
- inode->i_ino, blockptr >> bufshift);
- if ( ptrbh[1] )
- brelse(ptrbh[1]);
- goto eio;
- }
- cstart = le32_to_cpu(*(__le32 *)(bh->b_data + (blockptr & bufmask)));
-
- if ( indexblocks == 2 ) {
- /* We just crossed a block boundary. Switch to the next block */
- brelse(bh);
- bh = ptrbh[1];
- if ( !bh || (wait_on_buffer(bh), !buffer_uptodate(bh)) ) {
- printk(KERN_DEBUG "zisofs: Failed to read block table, inode = %lu, block = %lu\n",
- inode->i_ino, blockendptr >> bufshift);
- goto eio;
- }
+ wait_on_buffer(bhs[0]);
+ if (!buffer_uptodate(bhs[0])) {
+ *errp = -EIO;
+ goto b_eio;
}
- cend = le32_to_cpu(*(__le32 *)(bh->b_data + (blockendptr & bufmask)));
- brelse(bh);
- if (cstart > cend)
- goto eio;
+ stream.workspace = zisofs_zlib_workspace;
+ mutex_lock(&zisofs_zlib_lock);
- csize = cend-cstart;
-
- if (csize > deflateBound(1UL << zisofs_block_shift))
- goto eio;
-
- /* Now page[] contains an array of pages, any of which can be NULL,
- and the locks on which we hold. We should now read the data and
- release the pages. If the pages are NULL the decompressed data
- for that particular page should be discarded. */
-
- if ( csize == 0 ) {
- /* This data block is empty. */
-
- for ( fpage = 0 ; fpage < maxpage ; fpage++ ) {
- if ( (page = pages[fpage]) != NULL ) {
- memset(page_address(page), 0, PAGE_CACHE_SIZE);
-
- flush_dcache_page(page);
- SetPageUptodate(page);
- kunmap(page);
- unlock_page(page);
- if ( fpage == xpage )
- err = 0; /* The critical page */
- else
- page_cache_release(page);
+ zerr = zlib_inflateInit(&stream);
+ if (zerr != Z_OK) {
+ if (zerr == Z_MEM_ERROR)
+ *errp = -ENOMEM;
+ else
+ *errp = -EIO;
+ printk(KERN_DEBUG "zisofs: zisofs_inflateInit returned %d\n",
+ zerr);
+ goto z_eio;
+ }
+
+ while (curpage < pcount && curbh < haveblocks &&
+ zerr != Z_STREAM_END) {
+ if (!stream.avail_out) {
+ if (pages[curpage]) {
+ stream.next_out = page_address(pages[curpage])
+ + poffset;
+ stream.avail_out = PAGE_CACHE_SIZE - poffset;
+ poffset = 0;
+ } else {
+ stream.next_out = (void *)&zisofs_sink_page;
+ stream.avail_out = PAGE_CACHE_SIZE;
}
}
- } else {
- /* This data block is compressed. */
- z_stream stream;
- int bail = 0, left_out = -1;
- int zerr;
- int needblocks = (csize + (cstart & bufmask) + bufmask) >> bufshift;
- int haveblocks;
- struct buffer_head *bhs[needblocks+1];
- struct buffer_head **bhptr;
-
- /* Because zlib is not thread-safe, do all the I/O at the top. */
-
- blockptr = cstart >> bufshift;
- memset(bhs, 0, (needblocks+1)*sizeof(struct buffer_head *));
- haveblocks = isofs_get_blocks(inode, blockptr, bhs, needblocks);
- ll_rw_block(READ, haveblocks, bhs);
-
- bhptr = &bhs[0];
- bh = *bhptr++;
-
- /* First block is special since it may be fractional.
- We also wait for it before grabbing the zlib
- mutex; odds are that the subsequent blocks are
- going to come in in short order so we don't hold
- the zlib mutex longer than necessary. */
-
- if ( !bh || (wait_on_buffer(bh), !buffer_uptodate(bh)) ) {
- printk(KERN_DEBUG "zisofs: Hit null buffer, fpage = %d, xpage = %d, csize = %ld\n",
- fpage, xpage, csize);
- goto b_eio;
- }
- stream.next_in = bh->b_data + (cstart & bufmask);
- stream.avail_in = min(bufsize-(cstart & bufmask), csize);
- csize -= stream.avail_in;
-
- stream.workspace = zisofs_zlib_workspace;
- mutex_lock(&zisofs_zlib_lock);
-
- zerr = zlib_inflateInit(&stream);
- if ( zerr != Z_OK ) {
- if ( err && zerr == Z_MEM_ERROR )
- err = -ENOMEM;
- printk(KERN_DEBUG "zisofs: zisofs_inflateInit returned %d\n",
- zerr);
- goto z_eio;
+ if (!stream.avail_in) {
+ wait_on_buffer(bhs[curbh]);
+ if (!buffer_uptodate(bhs[curbh])) {
+ *errp = -EIO;
+ break;
+ }
+ stream.next_in = bhs[curbh]->b_data +
+ (block_start & bufmask);
+ stream.avail_in = min_t(unsigned, bufsize -
+ (block_start & bufmask),
+ block_size);
+ block_size -= stream.avail_in;
+ block_start = 0;
}
- while ( !bail && fpage < maxpage ) {
- page = pages[fpage];
- if ( page )
- stream.next_out = page_address(page);
- else
- stream.next_out = (void *)&zisofs_sink_page;
- stream.avail_out = PAGE_CACHE_SIZE;
-
- while ( stream.avail_out ) {
- int ao, ai;
- if ( stream.avail_in == 0 && left_out ) {
- if ( !csize ) {
- printk(KERN_WARNING "zisofs: ZF read beyond end of input\n");
- bail = 1;
- break;
- } else {
- bh = *bhptr++;
- if ( !bh ||
- (wait_on_buffer(bh), !buffer_uptodate(bh)) ) {
- /* Reached an EIO */
- printk(KERN_DEBUG "zisofs: Hit null buffer, fpage = %d, xpage = %d, csize = %ld\n",
- fpage, xpage, csize);
-
- bail = 1;
- break;
- }
- stream.next_in = bh->b_data;
- stream.avail_in = min(csize,bufsize);
- csize -= stream.avail_in;
- }
- }
- ao = stream.avail_out; ai = stream.avail_in;
- zerr = zlib_inflate(&stream, Z_SYNC_FLUSH);
- left_out = stream.avail_out;
- if ( zerr == Z_BUF_ERROR && stream.avail_in == 0 )
- continue;
- if ( zerr != Z_OK ) {
- /* EOF, error, or trying to read beyond end of input */
- if ( err && zerr == Z_MEM_ERROR )
- err = -ENOMEM;
- if ( zerr != Z_STREAM_END )
- printk(KERN_DEBUG "zisofs: zisofs_inflate returned %d, inode = %lu, index = %lu, fpage = %d, xpage = %d, avail_in = %d, avail_out = %d, ai = %d, ao = %d\n",
- zerr, inode->i_ino, index,
- fpage, xpage,
- stream.avail_in, stream.avail_out,
- ai, ao);
- bail = 1;
- break;
+ while (stream.avail_out && stream.avail_in) {
+ zerr = zlib_inflate(&stream, Z_SYNC_FLUSH);
+ if (zerr == Z_BUF_ERROR && stream.avail_in == 0)
+ break;
+ if (zerr == Z_STREAM_END)
+ break;
+ if (zerr != Z_OK) {
+ /* EOF, error, or trying to read beyond end of input */
+ if (zerr == Z_MEM_ERROR)
+ *errp = -ENOMEM;
+ else {
+ printk(KERN_DEBUG
+ "zisofs: zisofs_inflate returned"
+ " %d, inode = %lu,"
+ " page idx = %d, bh idx = %d,"
+ " avail_in = %d,"
+ " avail_out = %d\n",
+ zerr, inode->i_ino, curpage,
+ curbh, stream.avail_in,
+ stream.avail_out);
+ *errp = -EIO;
}
+ goto inflate_out;
}
+ }
- if ( stream.avail_out && zerr == Z_STREAM_END ) {
- /* Fractional page written before EOF. This may
- be the last page in the file. */
- memset(stream.next_out, 0, stream.avail_out);
- stream.avail_out = 0;
+ if (!stream.avail_out) {
+ /* This page completed */
+ if (pages[curpage]) {
+ flush_dcache_page(pages[curpage]);
+ SetPageUptodate(pages[curpage]);
}
+ curpage++;
+ }
+ if (!stream.avail_in)
+ curbh++;
+ }
+inflate_out:
+ zlib_inflateEnd(&stream);
- if ( !stream.avail_out ) {
- /* This page completed */
- if ( page ) {
- flush_dcache_page(page);
- SetPageUptodate(page);
- kunmap(page);
- unlock_page(page);
- if ( fpage == xpage )
- err = 0; /* The critical page */
- else
- page_cache_release(page);
- }
- fpage++;
- }
+z_eio:
+ mutex_unlock(&zisofs_zlib_lock);
+
+b_eio:
+ for (i = 0; i < haveblocks; i++)
+ brelse(bhs[i]);
+ return stream.total_out;
+}
+
+/*
+ * Uncompress data so that pages[full_page] is fully uptodate and possibly
+ * fills in other pages if we have data for them.
+ */
+static int zisofs_fill_pages(struct inode *inode, int full_page, int pcount,
+ struct page **pages)
+{
+ loff_t start_off, end_off;
+ loff_t block_start, block_end;
+ unsigned int header_size = ISOFS_I(inode)->i_format_parm[0];
+ unsigned int zisofs_block_shift = ISOFS_I(inode)->i_format_parm[1];
+ unsigned int blockptr;
+ loff_t poffset = 0;
+ blkcnt_t cstart_block, cend_block;
+ struct buffer_head *bh;
+ unsigned int blkbits = ISOFS_BUFFER_BITS(inode);
+ unsigned int blksize = 1 << blkbits;
+ int err;
+ loff_t ret;
+
+ BUG_ON(!pages[full_page]);
+
+ /*
+ * We want to read at least 'full_page' page. Because we have to
+ * uncompress the whole compression block anyway, fill the surrounding
+ * pages with the data we have anyway...
+ */
+ start_off = page_offset(pages[full_page]);
+ end_off = min_t(loff_t, start_off + PAGE_CACHE_SIZE, inode->i_size);
+
+ cstart_block = start_off >> zisofs_block_shift;
+ cend_block = (end_off + (1 << zisofs_block_shift) - 1)
+ >> zisofs_block_shift;
+
+ WARN_ON(start_off - (full_page << PAGE_CACHE_SHIFT) !=
+ ((cstart_block << zisofs_block_shift) & PAGE_CACHE_MASK));
+
+ /* Find the pointer to this specific chunk */
+ /* Note: we're not using isonum_731() here because the data is known aligned */
+ /* Note: header_size is in 32-bit words (4 bytes) */
+ blockptr = (header_size + cstart_block) << 2;
+ bh = isofs_bread(inode, blockptr >> blkbits);
+ if (!bh)
+ return -EIO;
+ block_start = le32_to_cpu(*(__le32 *)
+ (bh->b_data + (blockptr & (blksize - 1))));
+
+ while (cstart_block < cend_block && pcount > 0) {
+ /* Load end of the compressed block in the file */
+ blockptr += 4;
+ /* Traversed to next block? */
+ if (!(blockptr & (blksize - 1))) {
+ brelse(bh);
+
+ bh = isofs_bread(inode, blockptr >> blkbits);
+ if (!bh)
+ return -EIO;
+ }
+ block_end = le32_to_cpu(*(__le32 *)
+ (bh->b_data + (blockptr & (blksize - 1))));
+ if (block_start > block_end) {
+ brelse(bh);
+ return -EIO;
+ }
+ err = 0;
+ ret = zisofs_uncompress_block(inode, block_start, block_end,
+ pcount, pages, poffset, &err);
+ poffset += ret;
+ pages += poffset >> PAGE_CACHE_SHIFT;
+ pcount -= poffset >> PAGE_CACHE_SHIFT;
+ full_page -= poffset >> PAGE_CACHE_SHIFT;
+ poffset &= ~PAGE_CACHE_MASK;
+
+ if (err) {
+ brelse(bh);
+ /*
+ * Did we finish reading the page we really wanted
+ * to read?
+ */
+ if (full_page < 0)
+ return 0;
+ return err;
}
- zlib_inflateEnd(&stream);
- z_eio:
- mutex_unlock(&zisofs_zlib_lock);
+ block_start = block_end;
+ cstart_block++;
+ }
+
+ if (poffset && *pages) {
+ memset(page_address(*pages) + poffset, 0,
+ PAGE_CACHE_SIZE - poffset);
+ flush_dcache_page(*pages);
+ SetPageUptodate(*pages);
+ }
+ return 0;
+}
- b_eio:
- for ( i = 0 ; i < haveblocks ; i++ ) {
- if ( bhs[i] )
- brelse(bhs[i]);
+/*
+ * When decompressing, we typically obtain more than one page
+ * per reference. We inject the additional pages into the page
+ * cache as a form of readahead.
+ */
+static int zisofs_readpage(struct file *file, struct page *page)
+{
+ struct inode *inode = file->f_path.dentry->d_inode;
+ struct address_space *mapping = inode->i_mapping;
+ int err;
+ int i, pcount, full_page;
+ unsigned int zisofs_block_shift = ISOFS_I(inode)->i_format_parm[1];
+ unsigned int zisofs_pages_per_cblock =
+ PAGE_CACHE_SHIFT <= zisofs_block_shift ?
+ (1 << (zisofs_block_shift - PAGE_CACHE_SHIFT)) : 0;
+ struct page *pages[max_t(unsigned, zisofs_pages_per_cblock, 1)];
+ pgoff_t index = page->index, end_index;
+
+ end_index = (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+ /*
+ * If this page is wholly outside i_size we just return zero;
+ * do_generic_file_read() will handle this for us
+ */
+ if (index >= end_index) {
+ SetPageUptodate(page);
+ unlock_page(page);
+ return 0;
+ }
+
+ if (PAGE_CACHE_SHIFT <= zisofs_block_shift) {
+ /* We have already been given one page, this is the one
+ we must do. */
+ full_page = index & (zisofs_pages_per_cblock - 1);
+ pcount = min_t(int, zisofs_pages_per_cblock,
+ end_index - (index & ~(zisofs_pages_per_cblock - 1)));
+ index -= full_page;
+ } else {
+ full_page = 0;
+ pcount = 1;
+ }
+ pages[full_page] = page;
+
+ for (i = 0; i < pcount; i++, index++) {
+ if (i != full_page)
+ pages[i] = grab_cache_page_nowait(mapping, index);
+ if (pages[i]) {
+ ClearPageError(pages[i]);
+ kmap(pages[i]);
}
}
-eio:
+ err = zisofs_fill_pages(inode, full_page, pcount, pages);
/* Release any residual pages, do not SetPageUptodate */
- while ( fpage < maxpage ) {
- page = pages[fpage];
- if ( page ) {
- flush_dcache_page(page);
- if ( fpage == xpage )
- SetPageError(page);
- kunmap(page);
- unlock_page(page);
- if ( fpage != xpage )
- page_cache_release(page);
+ for (i = 0; i < pcount; i++) {
+ if (pages[i]) {
+ flush_dcache_page(pages[i]);
+ if (i == full_page && err)
+ SetPageError(pages[i]);
+ kunmap(pages[i]);
+ unlock_page(pages[i]);
+ if (i != full_page)
+ page_cache_release(pages[i]);
}
- fpage++;
}
/* At this point, err contains 0 or -EIO depending on the "critical" page */
if (algo == SIG('p', 'z')) {
int block_shift =
isonum_711(&rr->u.ZF.parms[1]);
- if (block_shift < PAGE_CACHE_SHIFT
- || block_shift > 17) {
+ if (block_shift > 17) {
printk(KERN_WARNING "isofs: "
"Can't handle ZF block "
"size of 2^%d\n",
if (err) {
/*
* Because AS_EIO is cleared by
- * wait_on_page_writeback_range(), set it again so
+ * filemap_fdatawait_range(), set it again so
* that user process can get -EIO from fsync().
*/
set_bit(AS_EIO,
int will_write;
int flag = open_to_namei_flags(open_flag);
+ /*
+ * O_SYNC is implemented as __O_SYNC|O_DSYNC. As many places only
+ * check for O_DSYNC if the need any syncing at all we enforce it's
+ * always set instead of having to deal with possibly weird behaviour
+ * for malicious applications setting only __O_SYNC.
+ */
+ if (open_flag & __O_SYNC)
+ open_flag |= O_DSYNC;
+
if (!acc_mode)
acc_mode = MAY_OPEN | ACC_MODE(flag);
{
struct nfs_open_context *ctx;
- if (IS_SYNC(inode) || (filp->f_flags & O_SYNC))
+ if (IS_SYNC(inode) || (filp->f_flags & O_DSYNC))
return 1;
ctx = nfs_file_open_context(filp);
if (test_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags))
nfs_add_stats(inode, NFSIOS_NORMALWRITTENBYTES, count);
result = generic_file_aio_write(iocb, iov, nr_segs, pos);
- /* Return error values for O_SYNC and IS_SYNC() */
+ /* Return error values for O_DSYNC and IS_SYNC() */
if (result >= 0 && nfs_need_sync_write(iocb->ki_filp, inode)) {
int err = nfs_do_fsync(nfs_file_open_context(iocb->ki_filp), inode);
if (err < 0)
*/
if (nfs_write_pageuptodate(page, inode) &&
inode->i_flock == NULL &&
- !(file->f_flags & O_SYNC)) {
+ !(file->f_flags & O_DSYNC)) {
count = max(count + offset, nfs_page_length(page));
offset = 0;
}
/* buffered aio wouldn't have proper lock coverage today */
BUG_ON(ret == -EIOCBQUEUED && !(file->f_flags & O_DIRECT));
- if ((file->f_flags & O_SYNC && !direct_io) || IS_SYNC(inode)) {
+ if ((file->f_flags & O_DSYNC && !direct_io) || IS_SYNC(inode)) {
ret = filemap_fdatawrite_range(file->f_mapping, pos,
pos + count - 1);
if (ret < 0)
#include "ocfs2.h"
-/* Common stuff */
-/* id number of quota format */
-#define QFMT_OCFS2 3
-
/*
* In-memory structures
*/
return status;
}
-static struct quota_format_ops ocfs2_format_ops = {
+static const struct quota_format_ops ocfs2_format_ops = {
.check_quota_file = ocfs2_local_check_quota_file,
.read_file_info = ocfs2_local_read_info,
.write_file_info = ocfs2_global_write_info,
format say Y here.
config QFMT_V2
- tristate "Quota format v2 support"
+ tristate "Quota format vfsv0 and vfsv1 support"
depends on QUOTA
select QUOTA_TREE
help
- This quota format allows using quotas with 32-bit UIDs/GIDs. If you
- need this functionality say Y here.
+ This config option enables kernel support for vfsv0 and vfsv1 quota
+ formats. Both these formats support 32-bit UIDs/GIDs and vfsv1 format
+ also supports 64-bit inode and block quota limits. If you need this
+ functionality say Y here.
config QUOTACTL
bool
struct dentry *dentry;
int error;
+ mutex_lock(&sb->s_root->d_inode->i_mutex);
dentry = lookup_one_len(qf_name, sb->s_root, strlen(qf_name));
+ mutex_unlock(&sb->s_root->d_inode->i_mutex);
if (IS_ERR(dentry))
return PTR_ERR(dentry);
return ret;
}
-static struct quota_format_ops v1_format_ops = {
+static const struct quota_format_ops v1_format_ops = {
.check_quota_file = v1_check_quota_file,
.read_file_info = v1_read_file_info,
.write_file_info = v1_write_file_info,
#define __QUOTA_V2_PARANOIA
-static void v2_mem2diskdqb(void *dp, struct dquot *dquot);
-static void v2_disk2memdqb(struct dquot *dquot, void *dp);
-static int v2_is_id(void *dp, struct dquot *dquot);
-
-static struct qtree_fmt_operations v2_qtree_ops = {
- .mem2disk_dqblk = v2_mem2diskdqb,
- .disk2mem_dqblk = v2_disk2memdqb,
- .is_id = v2_is_id,
+static void v2r0_mem2diskdqb(void *dp, struct dquot *dquot);
+static void v2r0_disk2memdqb(struct dquot *dquot, void *dp);
+static int v2r0_is_id(void *dp, struct dquot *dquot);
+static void v2r1_mem2diskdqb(void *dp, struct dquot *dquot);
+static void v2r1_disk2memdqb(struct dquot *dquot, void *dp);
+static int v2r1_is_id(void *dp, struct dquot *dquot);
+
+static struct qtree_fmt_operations v2r0_qtree_ops = {
+ .mem2disk_dqblk = v2r0_mem2diskdqb,
+ .disk2mem_dqblk = v2r0_disk2memdqb,
+ .is_id = v2r0_is_id,
+};
+
+static struct qtree_fmt_operations v2r1_qtree_ops = {
+ .mem2disk_dqblk = v2r1_mem2diskdqb,
+ .disk2mem_dqblk = v2r1_disk2memdqb,
+ .is_id = v2r1_is_id,
};
#define QUOTABLOCK_BITS 10
return blocks << QUOTABLOCK_BITS;
}
+static int v2_read_header(struct super_block *sb, int type,
+ struct v2_disk_dqheader *dqhead)
+{
+ ssize_t size;
+
+ size = sb->s_op->quota_read(sb, type, (char *)dqhead,
+ sizeof(struct v2_disk_dqheader), 0);
+ if (size != sizeof(struct v2_disk_dqheader)) {
+ printk(KERN_WARNING "quota_v2: Failed header read:"
+ " expected=%zd got=%zd\n",
+ sizeof(struct v2_disk_dqheader), size);
+ return 0;
+ }
+ return 1;
+}
+
/* Check whether given file is really vfsv0 quotafile */
static int v2_check_quota_file(struct super_block *sb, int type)
{
struct v2_disk_dqheader dqhead;
- ssize_t size;
static const uint quota_magics[] = V2_INITQMAGICS;
static const uint quota_versions[] = V2_INITQVERSIONS;
- size = sb->s_op->quota_read(sb, type, (char *)&dqhead,
- sizeof(struct v2_disk_dqheader), 0);
- if (size != sizeof(struct v2_disk_dqheader)) {
- printk("quota_v2: failed read expected=%zd got=%zd\n",
- sizeof(struct v2_disk_dqheader), size);
+ if (!v2_read_header(sb, type, &dqhead))
return 0;
- }
if (le32_to_cpu(dqhead.dqh_magic) != quota_magics[type] ||
- le32_to_cpu(dqhead.dqh_version) != quota_versions[type])
+ le32_to_cpu(dqhead.dqh_version) > quota_versions[type])
return 0;
return 1;
}
static int v2_read_file_info(struct super_block *sb, int type)
{
struct v2_disk_dqinfo dinfo;
+ struct v2_disk_dqheader dqhead;
struct mem_dqinfo *info = sb_dqinfo(sb, type);
struct qtree_mem_dqinfo *qinfo;
ssize_t size;
+ unsigned int version;
+
+ if (!v2_read_header(sb, type, &dqhead))
+ return 0;
+ version = le32_to_cpu(dqhead.dqh_version);
size = sb->s_op->quota_read(sb, type, (char *)&dinfo,
sizeof(struct v2_disk_dqinfo), V2_DQINFOOFF);
if (size != sizeof(struct v2_disk_dqinfo)) {
- printk(KERN_WARNING "Can't read info structure on device %s.\n",
+ printk(KERN_WARNING "quota_v2: Can't read info structure on device %s.\n",
sb->s_id);
return -1;
}
return -1;
}
qinfo = info->dqi_priv;
- /* limits are stored as unsigned 32-bit data */
- info->dqi_maxblimit = 0xffffffff;
- info->dqi_maxilimit = 0xffffffff;
+ if (version == 0) {
+ /* limits are stored as unsigned 32-bit data */
+ info->dqi_maxblimit = 0xffffffff;
+ info->dqi_maxilimit = 0xffffffff;
+ } else {
+ /* used space is stored as unsigned 64-bit value */
+ info->dqi_maxblimit = 0xffffffffffffffff; /* 2^64-1 */
+ info->dqi_maxilimit = 0xffffffffffffffff;
+ }
info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace);
info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace);
info->dqi_flags = le32_to_cpu(dinfo.dqi_flags);
qinfo->dqi_blocksize_bits = V2_DQBLKSIZE_BITS;
qinfo->dqi_usable_bs = 1 << V2_DQBLKSIZE_BITS;
qinfo->dqi_qtree_depth = qtree_depth(qinfo);
- qinfo->dqi_entry_size = sizeof(struct v2_disk_dqblk);
- qinfo->dqi_ops = &v2_qtree_ops;
+ if (version == 0) {
+ qinfo->dqi_entry_size = sizeof(struct v2r0_disk_dqblk);
+ qinfo->dqi_ops = &v2r0_qtree_ops;
+ } else {
+ qinfo->dqi_entry_size = sizeof(struct v2r1_disk_dqblk);
+ qinfo->dqi_ops = &v2r1_qtree_ops;
+ }
return 0;
}
return 0;
}
-static void v2_disk2memdqb(struct dquot *dquot, void *dp)
+static void v2r0_disk2memdqb(struct dquot *dquot, void *dp)
{
- struct v2_disk_dqblk *d = dp, empty;
+ struct v2r0_disk_dqblk *d = dp, empty;
struct mem_dqblk *m = &dquot->dq_dqb;
m->dqb_ihardlimit = le32_to_cpu(d->dqb_ihardlimit);
m->dqb_curspace = le64_to_cpu(d->dqb_curspace);
m->dqb_btime = le64_to_cpu(d->dqb_btime);
/* We need to escape back all-zero structure */
- memset(&empty, 0, sizeof(struct v2_disk_dqblk));
+ memset(&empty, 0, sizeof(struct v2r0_disk_dqblk));
empty.dqb_itime = cpu_to_le64(1);
- if (!memcmp(&empty, dp, sizeof(struct v2_disk_dqblk)))
+ if (!memcmp(&empty, dp, sizeof(struct v2r0_disk_dqblk)))
m->dqb_itime = 0;
}
-static void v2_mem2diskdqb(void *dp, struct dquot *dquot)
+static void v2r0_mem2diskdqb(void *dp, struct dquot *dquot)
{
- struct v2_disk_dqblk *d = dp;
+ struct v2r0_disk_dqblk *d = dp;
struct mem_dqblk *m = &dquot->dq_dqb;
struct qtree_mem_dqinfo *info =
sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
d->dqb_itime = cpu_to_le64(1);
}
-static int v2_is_id(void *dp, struct dquot *dquot)
+static int v2r0_is_id(void *dp, struct dquot *dquot)
+{
+ struct v2r0_disk_dqblk *d = dp;
+ struct qtree_mem_dqinfo *info =
+ sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
+
+ if (qtree_entry_unused(info, dp))
+ return 0;
+ return le32_to_cpu(d->dqb_id) == dquot->dq_id;
+}
+
+static void v2r1_disk2memdqb(struct dquot *dquot, void *dp)
+{
+ struct v2r1_disk_dqblk *d = dp, empty;
+ struct mem_dqblk *m = &dquot->dq_dqb;
+
+ m->dqb_ihardlimit = le64_to_cpu(d->dqb_ihardlimit);
+ m->dqb_isoftlimit = le64_to_cpu(d->dqb_isoftlimit);
+ m->dqb_curinodes = le64_to_cpu(d->dqb_curinodes);
+ m->dqb_itime = le64_to_cpu(d->dqb_itime);
+ m->dqb_bhardlimit = v2_qbtos(le64_to_cpu(d->dqb_bhardlimit));
+ m->dqb_bsoftlimit = v2_qbtos(le64_to_cpu(d->dqb_bsoftlimit));
+ m->dqb_curspace = le64_to_cpu(d->dqb_curspace);
+ m->dqb_btime = le64_to_cpu(d->dqb_btime);
+ /* We need to escape back all-zero structure */
+ memset(&empty, 0, sizeof(struct v2r1_disk_dqblk));
+ empty.dqb_itime = cpu_to_le64(1);
+ if (!memcmp(&empty, dp, sizeof(struct v2r1_disk_dqblk)))
+ m->dqb_itime = 0;
+}
+
+static void v2r1_mem2diskdqb(void *dp, struct dquot *dquot)
+{
+ struct v2r1_disk_dqblk *d = dp;
+ struct mem_dqblk *m = &dquot->dq_dqb;
+ struct qtree_mem_dqinfo *info =
+ sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
+
+ d->dqb_ihardlimit = cpu_to_le64(m->dqb_ihardlimit);
+ d->dqb_isoftlimit = cpu_to_le64(m->dqb_isoftlimit);
+ d->dqb_curinodes = cpu_to_le64(m->dqb_curinodes);
+ d->dqb_itime = cpu_to_le64(m->dqb_itime);
+ d->dqb_bhardlimit = cpu_to_le64(v2_stoqb(m->dqb_bhardlimit));
+ d->dqb_bsoftlimit = cpu_to_le64(v2_stoqb(m->dqb_bsoftlimit));
+ d->dqb_curspace = cpu_to_le64(m->dqb_curspace);
+ d->dqb_btime = cpu_to_le64(m->dqb_btime);
+ d->dqb_id = cpu_to_le32(dquot->dq_id);
+ if (qtree_entry_unused(info, dp))
+ d->dqb_itime = cpu_to_le64(1);
+}
+
+static int v2r1_is_id(void *dp, struct dquot *dquot)
{
- struct v2_disk_dqblk *d = dp;
+ struct v2r1_disk_dqblk *d = dp;
struct qtree_mem_dqinfo *info =
sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
return 0;
}
-static struct quota_format_ops v2_format_ops = {
+static const struct quota_format_ops v2_format_ops = {
.check_quota_file = v2_check_quota_file,
.read_file_info = v2_read_file_info,
.write_file_info = v2_write_file_info,
.release_dqblk = v2_release_dquot,
};
-static struct quota_format_type v2_quota_format = {
+static struct quota_format_type v2r0_quota_format = {
.qf_fmt_id = QFMT_VFS_V0,
.qf_ops = &v2_format_ops,
.qf_owner = THIS_MODULE
};
+static struct quota_format_type v2r1_quota_format = {
+ .qf_fmt_id = QFMT_VFS_V1,
+ .qf_ops = &v2_format_ops,
+ .qf_owner = THIS_MODULE
+};
+
static int __init init_v2_quota_format(void)
{
- return register_quota_format(&v2_quota_format);
+ int ret;
+
+ ret = register_quota_format(&v2r0_quota_format);
+ if (ret)
+ return ret;
+ return register_quota_format(&v2r1_quota_format);
}
static void __exit exit_v2_quota_format(void)
{
- unregister_quota_format(&v2_quota_format);
+ unregister_quota_format(&v2r0_quota_format);
+ unregister_quota_format(&v2r1_quota_format);
}
module_init(init_v2_quota_format);
}
#define V2_INITQVERSIONS {\
- 0, /* USRQUOTA */\
- 0 /* GRPQUOTA */\
+ 1, /* USRQUOTA */\
+ 1 /* GRPQUOTA */\
}
/* First generic header */
* (as it appears on disk) - the file is a radix tree whose leaves point
* to blocks of these structures.
*/
-struct v2_disk_dqblk {
+struct v2r0_disk_dqblk {
__le32 dqb_id; /* id this quota applies to */
__le32 dqb_ihardlimit; /* absolute limit on allocated inodes */
__le32 dqb_isoftlimit; /* preferred inode limit */
__le64 dqb_itime; /* time limit for excessive inode use */
};
+struct v2r1_disk_dqblk {
+ __le32 dqb_id; /* id this quota applies to */
+ __le32 dqb_pad;
+ __le64 dqb_ihardlimit; /* absolute limit on allocated inodes */
+ __le64 dqb_isoftlimit; /* preferred inode limit */
+ __le64 dqb_curinodes; /* current # allocated inodes */
+ __le64 dqb_bhardlimit; /* absolute limit on disk space (in QUOTABLOCK_SIZE) */
+ __le64 dqb_bsoftlimit; /* preferred limit on disk space (in QUOTABLOCK_SIZE) */
+ __le64 dqb_curspace; /* current space occupied (in bytes) */
+ __le64 dqb_btime; /* time limit for excessive disk use */
+ __le64 dqb_itime; /* time limit for excessive inode use */
+};
+
/* Header with type and version specific information */
struct v2_disk_dqinfo {
__le32 dqi_bgrace; /* Time before block soft limit becomes hard limit */
*/
int generic_write_sync(struct file *file, loff_t pos, loff_t count)
{
- if (!(file->f_flags & O_SYNC) && !IS_SYNC(file->f_mapping->host))
+ if (!(file->f_flags & O_DSYNC) && !IS_SYNC(file->f_mapping->host))
return 0;
return vfs_fsync_range(file, file->f_path.dentry, pos,
- pos + count - 1, 1);
+ pos + count - 1,
+ (file->f_flags & __O_SYNC) ? 0 : 1);
}
EXPORT_SYMBOL(generic_write_sync);
ret = 0;
if (flags & SYNC_FILE_RANGE_WAIT_BEFORE) {
- ret = wait_on_page_writeback_range(mapping,
- offset >> PAGE_CACHE_SHIFT,
- endbyte >> PAGE_CACHE_SHIFT);
+ ret = filemap_fdatawait_range(mapping, offset, endbyte);
if (ret < 0)
goto out;
}
}
if (flags & SYNC_FILE_RANGE_WAIT_AFTER) {
- ret = wait_on_page_writeback_range(mapping,
- offset >> PAGE_CACHE_SHIFT,
- endbyte >> PAGE_CACHE_SHIFT);
+ ret = filemap_fdatawait_range(mapping, offset, endbyte);
}
out:
return ret;
XFS_STATS_ADD(xs_write_bytes, ret);
/* Handle various SYNC-type writes */
- if ((file->f_flags & O_SYNC) || IS_SYNC(inode)) {
+ if ((file->f_flags & O_DSYNC) || IS_SYNC(inode)) {
loff_t end = pos + ret - 1;
int error2;
#include <linux/types.h>
-/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
- located on an ext2 file system */
#define O_ACCMODE 00000003
#define O_RDONLY 00000000
#define O_WRONLY 00000001
#ifndef O_NONBLOCK
#define O_NONBLOCK 00004000
#endif
-#ifndef O_SYNC
-#define O_SYNC 00010000
+#ifndef O_DSYNC
+#define O_DSYNC 00010000 /* used to be O_SYNC, see below */
#endif
#ifndef FASYNC
#define FASYNC 00020000 /* fcntl, for BSD compatibility */
#ifndef O_CLOEXEC
#define O_CLOEXEC 02000000 /* set close_on_exec */
#endif
+
+/*
+ * Before Linux 2.6.32 only O_DSYNC semantics were implemented, but using
+ * the O_SYNC flag. We continue to use the existing numerical value
+ * for O_DSYNC semantics now, but using the correct symbolic name for it.
+ * This new value is used to request true Posix O_SYNC semantics. It is
+ * defined in this strange way to make sure applications compiled against
+ * new headers get at least O_DSYNC semantics on older kernels.
+ *
+ * This has the nice side-effect that we can simply test for O_DSYNC
+ * wherever we do not care if O_DSYNC or O_SYNC is used.
+ *
+ * Note: __O_SYNC must never be used directly.
+ */
+#ifndef O_SYNC
+#define __O_SYNC 04000000
+#define O_SYNC (__O_SYNC|O_DSYNC)
+#endif
+
#ifndef O_NDELAY
#define O_NDELAY O_NONBLOCK
#endif
* other bits are reserved for now.
*/
enum {
- EXT2_FT_UNKNOWN,
- EXT2_FT_REG_FILE,
- EXT2_FT_DIR,
- EXT2_FT_CHRDEV,
- EXT2_FT_BLKDEV,
- EXT2_FT_FIFO,
- EXT2_FT_SOCK,
- EXT2_FT_SYMLINK,
+ EXT2_FT_UNKNOWN = 0,
+ EXT2_FT_REG_FILE = 1,
+ EXT2_FT_DIR = 2,
+ EXT2_FT_CHRDEV = 3,
+ EXT2_FT_BLKDEV = 4,
+ EXT2_FT_FIFO = 5,
+ EXT2_FT_SOCK = 6,
+ EXT2_FT_SYMLINK = 7,
EXT2_FT_MAX
};
__attribute__ ((format (printf, 3, 4)));
extern void ext3_warning (struct super_block *, const char *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
+extern void ext3_msg(struct super_block *, const char *, const char *, ...)
+ __attribute__ ((format (printf, 3, 4)));
extern void ext3_update_dynamic_rev (struct super_block *sb);
#define ext3_std_error(sb, errno) \
extern int filemap_write_and_wait(struct address_space *mapping);
extern int filemap_write_and_wait_range(struct address_space *mapping,
loff_t lstart, loff_t lend);
-extern int wait_on_page_writeback_range(struct address_space *mapping,
- pgoff_t start, pgoff_t end);
extern int __filemap_fdatawrite_range(struct address_space *mapping,
loff_t start, loff_t end, int sync_mode);
extern int filemap_fdatawrite_range(struct address_space *mapping,
/* Quota format type IDs */
#define QFMT_VFS_OLD 1
#define QFMT_VFS_V0 2
+#define QFMT_OCFS2 3
+#define QFMT_VFS_V1 4
/* Size of block in which space limits are passed through the quota
* interface */
struct quota_format_type {
int qf_fmt_id; /* Quota format id */
- struct quota_format_ops *qf_ops; /* Operations of format */
+ const struct quota_format_ops *qf_ops; /* Operations of format */
struct module *qf_owner; /* Module implementing quota format */
struct quota_format_type *qf_next;
};
struct rw_semaphore dqptr_sem; /* serialize ops using quota_info struct, pointers from inode to dquots */
struct inode *files[MAXQUOTAS]; /* inodes of quotafiles */
struct mem_dqinfo info[MAXQUOTAS]; /* Information for each quota type */
- struct quota_format_ops *ops[MAXQUOTAS]; /* Operations for each type */
+ const struct quota_format_ops *ops[MAXQUOTAS]; /* Operations for each type */
};
int register_quota_format(struct quota_format_type *fmt);
EXPORT_SYMBOL(filemap_flush);
/**
- * wait_on_page_writeback_range - wait for writeback to complete
- * @mapping: target address_space
- * @start: beginning page index
- * @end: ending page index
+ * filemap_fdatawait_range - wait for writeback to complete
+ * @mapping: address space structure to wait for
+ * @start_byte: offset in bytes where the range starts
+ * @end_byte: offset in bytes where the range ends (inclusive)
*
- * Wait for writeback to complete against pages indexed by start->end
- * inclusive
+ * Walk the list of under-writeback pages of the given address space
+ * in the given range and wait for all of them.
*/
-int wait_on_page_writeback_range(struct address_space *mapping,
- pgoff_t start, pgoff_t end)
+int filemap_fdatawait_range(struct address_space *mapping, loff_t start_byte,
+ loff_t end_byte)
{
+ pgoff_t index = start_byte >> PAGE_CACHE_SHIFT;
+ pgoff_t end = end_byte >> PAGE_CACHE_SHIFT;
struct pagevec pvec;
int nr_pages;
int ret = 0;
- pgoff_t index;
- if (end < start)
+ if (end_byte < start_byte)
return 0;
pagevec_init(&pvec, 0);
- index = start;
while ((index <= end) &&
(nr_pages = pagevec_lookup_tag(&pvec, mapping, &index,
PAGECACHE_TAG_WRITEBACK,
return ret;
}
-
-/**
- * filemap_fdatawait_range - wait for all under-writeback pages to complete in a given range
- * @mapping: address space structure to wait for
- * @start: offset in bytes where the range starts
- * @end: offset in bytes where the range ends (inclusive)
- *
- * Walk the list of under-writeback pages of the given address space
- * in the given range and wait for all of them.
- *
- * This is just a simple wrapper so that callers don't have to convert offsets
- * to page indexes themselves
- */
-int filemap_fdatawait_range(struct address_space *mapping, loff_t start,
- loff_t end)
-{
- return wait_on_page_writeback_range(mapping, start >> PAGE_CACHE_SHIFT,
- end >> PAGE_CACHE_SHIFT);
-}
EXPORT_SYMBOL(filemap_fdatawait_range);
/**
if (i_size == 0)
return 0;
- return wait_on_page_writeback_range(mapping, 0,
- (i_size - 1) >> PAGE_CACHE_SHIFT);
+ return filemap_fdatawait_range(mapping, 0, i_size - 1);
}
EXPORT_SYMBOL(filemap_fdatawait);
WB_SYNC_ALL);
/* See comment of filemap_write_and_wait() */
if (err != -EIO) {
- int err2 = wait_on_page_writeback_range(mapping,
- lstart >> PAGE_CACHE_SHIFT,
- lend >> PAGE_CACHE_SHIFT);
+ int err2 = filemap_fdatawait_range(mapping,
+ lstart, lend);
if (!err)
err = err2;
}
break;
count -= count1;
}
- if (file->f_flags & O_SYNC) {
+ if (file->f_flags & O_DSYNC) {
spin_lock_irq(&runtime->lock);
while (runtime->avail != runtime->buffer_size) {
wait_queue_t wait;
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff