* NO WARRANTY
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/time.h>
#include <linux/reiserfs_fs.h>
#include <linux/reiserfs_acl.h>
#include <linux/reiserfs_xattr.h>
-#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/buffer_head.h>
+#include <linux/exportfs.h>
+#include <linux/quotaops.h>
#include <linux/vfs.h>
-#include <linux/namespace.h>
#include <linux/mount.h>
#include <linux/namei.h>
-#include <linux/quotaops.h>
+#include <linux/crc32.h>
+#include <linux/smp_lock.h>
struct file_system_type reiserfs_fs_type;
}
static int reiserfs_remount(struct super_block *s, int *flags, char *data);
-static int reiserfs_statfs(struct super_block *s, struct kstatfs *buf);
+static int reiserfs_statfs(struct dentry *dentry, struct kstatfs *buf);
static int reiserfs_sync_fs(struct super_block *s, int wait)
{
- if (!(s->s_flags & MS_RDONLY)) {
- struct reiserfs_transaction_handle th;
- reiserfs_write_lock(s);
- if (!journal_begin(&th, s, 1))
- if (!journal_end_sync(&th, s, 1))
- reiserfs_flush_old_commits(s);
- s->s_dirt = 0; /* Even if it's not true.
- * We'll loop forever in sync_supers otherwise */
- reiserfs_write_unlock(s);
- } else {
- s->s_dirt = 0;
- }
+ struct reiserfs_transaction_handle th;
+
+ reiserfs_write_lock(s);
+ if (!journal_begin(&th, s, 1))
+ if (!journal_end_sync(&th, s, 1))
+ reiserfs_flush_old_commits(s);
+ s->s_dirt = 0; /* Even if it's not true.
+ * We'll loop forever in sync_supers otherwise */
+ reiserfs_write_unlock(s);
return 0;
}
reiserfs_sync_fs(s, 1);
}
-static void reiserfs_write_super_lockfs(struct super_block *s)
+static int reiserfs_freeze(struct super_block *s)
{
struct reiserfs_transaction_handle th;
reiserfs_write_lock(s);
}
s->s_dirt = 0;
reiserfs_write_unlock(s);
+ return 0;
}
-static void reiserfs_unlockfs(struct super_block *s)
+static int reiserfs_unfreeze(struct super_block *s)
{
reiserfs_allow_writes(s);
+ return 0;
}
extern const struct in_core_key MAX_IN_CORE_KEY;
{
INITIALIZE_PATH(path);
struct cpu_key max_cpu_key, obj_key;
- struct reiserfs_key save_link_key;
+ struct reiserfs_key save_link_key, last_inode_key;
int retval = 0;
struct item_head *ih;
struct buffer_head *bh;
set_cpu_key_k_offset(&max_cpu_key, ~0U);
max_cpu_key.key_length = 3;
+ memset(&last_inode_key, 0, sizeof(last_inode_key));
+
#ifdef CONFIG_QUOTA
/* Needed for iput() to work correctly and not trash data */
if (s->s_flags & MS_ACTIVE) {
if (REISERFS_SB(s)->s_qf_names[i]) {
int ret = reiserfs_quota_on_mount(s, i);
if (ret < 0)
- reiserfs_warning(s,
- "reiserfs: cannot turn on journalled quota: error %d",
- ret);
+ reiserfs_warning(s, "reiserfs-2500",
+ "cannot turn on journaled "
+ "quota: error %d", ret);
}
}
#endif
while (!retval) {
retval = search_item(s, &max_cpu_key, &path);
if (retval != ITEM_NOT_FOUND) {
- reiserfs_warning(s,
- "vs-2140: finish_unfinished: search_by_key returned %d",
- retval);
+ reiserfs_error(s, "vs-2140",
+ "search_by_key returned %d", retval);
break;
}
bh = get_last_bh(&path);
item_pos = get_item_pos(&path);
if (item_pos != B_NR_ITEMS(bh)) {
- reiserfs_warning(s,
- "vs-2060: finish_unfinished: wrong position found");
+ reiserfs_warning(s, "vs-2060",
+ "wrong position found");
break;
}
item_pos--;
if (!inode) {
/* the unlink almost completed, it just did not manage to remove
"save" link and release objectid */
- reiserfs_warning(s,
- "vs-2180: finish_unfinished: iget failed for %K",
+ reiserfs_warning(s, "vs-2180", "iget failed for %K",
&obj_key);
retval = remove_save_link_only(s, &save_link_key, 1);
continue;
if (!truncate && inode->i_nlink) {
/* file is not unlinked */
- reiserfs_warning(s,
- "vs-2185: finish_unfinished: file %K is not unlinked",
+ reiserfs_warning(s, "vs-2185",
+ "file %K is not unlinked",
&obj_key);
retval = remove_save_link_only(s, &save_link_key, 0);
continue;
}
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
if (truncate && S_ISDIR(inode->i_mode)) {
/* We got a truncate request for a dir which is impossible.
The only imaginable way is to execute unfinished truncate request
then boot into old kernel, remove the file and create dir with
the same key. */
- reiserfs_warning(s,
- "green-2101: impossible truncate on a directory %k. Please report",
+ reiserfs_warning(s, "green-2101",
+ "impossible truncate on a "
+ "directory %k. Please report",
INODE_PKEY(inode));
retval = remove_save_link_only(s, &save_link_key, 0);
truncate = 0;
REISERFS_I(inode)->i_flags |= i_link_saved_unlink_mask;
/* not completed unlink (rmdir) found */
reiserfs_info(s, "Removing %k..", INODE_PKEY(inode));
- /* removal gets completed in iput */
- retval = 0;
+ if (memcmp(&last_inode_key, INODE_PKEY(inode),
+ sizeof(last_inode_key))){
+ last_inode_key = *INODE_PKEY(inode);
+ /* removal gets completed in iput */
+ retval = 0;
+ } else {
+ reiserfs_warning(s, "super-2189", "Dead loop "
+ "in finish_unfinished "
+ "detected, just remove "
+ "save link\n");
+ retval = remove_save_link_only(s,
+ &save_link_key, 0);
+ }
}
iput(inode);
/* Turn quotas off */
for (i = 0; i < MAXQUOTAS; i++) {
if (sb_dqopt(s)->files[i])
- vfs_quota_off_mount(s, i);
+ vfs_quota_off(s, i, 0);
}
if (ms_active_set)
/* Restore the flag back */
/* to protect file being unlinked from getting lost we "safe" link files
being unlinked. This link will be deleted in the same transaction with last
- item of file. mounting the filesytem we scan all these links and remove
+ item of file. mounting the filesystem we scan all these links and remove
files which almost got lost */
void add_save_link(struct reiserfs_transaction_handle *th,
struct inode *inode, int truncate)
} else {
/* truncate */
if (S_ISDIR(inode->i_mode))
- reiserfs_warning(inode->i_sb,
- "green-2102: Adding a truncate savelink for a directory %k! Please report",
+ reiserfs_warning(inode->i_sb, "green-2102",
+ "Adding a truncate savelink for "
+ "a directory %k! Please report",
INODE_PKEY(inode));
set_cpu_key_k_offset(&key, 1);
set_cpu_key_k_type(&key, TYPE_INDIRECT);
retval = search_item(inode->i_sb, &key, &path);
if (retval != ITEM_NOT_FOUND) {
if (retval != -ENOSPC)
- reiserfs_warning(inode->i_sb, "vs-2100: add_save_link:"
- "search_by_key (%K) returned %d", &key,
- retval);
+ reiserfs_error(inode->i_sb, "vs-2100",
+ "search_by_key (%K) returned %d", &key,
+ retval);
pathrelse(&path);
return;
}
reiserfs_insert_item(th, &path, &key, &ih, NULL, (char *)&link);
if (retval) {
if (retval != -ENOSPC)
- reiserfs_warning(inode->i_sb,
- "vs-2120: add_save_link: insert_item returned %d",
- retval);
+ reiserfs_error(inode->i_sb, "vs-2120",
+ "insert_item returned %d", retval);
} else {
if (truncate)
REISERFS_I(inode)->i_flags |=
return journal_end(&th, inode->i_sb, JOURNAL_PER_BALANCE_CNT);
}
+static void reiserfs_kill_sb(struct super_block *s)
+{
+ if (REISERFS_SB(s)) {
+ if (REISERFS_SB(s)->xattr_root) {
+ d_invalidate(REISERFS_SB(s)->xattr_root);
+ dput(REISERFS_SB(s)->xattr_root);
+ REISERFS_SB(s)->xattr_root = NULL;
+ }
+ if (REISERFS_SB(s)->priv_root) {
+ d_invalidate(REISERFS_SB(s)->priv_root);
+ dput(REISERFS_SB(s)->priv_root);
+ REISERFS_SB(s)->priv_root = NULL;
+ }
+ }
+
+ kill_block_super(s);
+}
+
static void reiserfs_put_super(struct super_block *s)
{
- int i;
struct reiserfs_transaction_handle th;
th.t_trans_id = 0;
- if (REISERFS_SB(s)->xattr_root) {
- d_invalidate(REISERFS_SB(s)->xattr_root);
- dput(REISERFS_SB(s)->xattr_root);
- }
+ reiserfs_write_lock(s);
- if (REISERFS_SB(s)->priv_root) {
- d_invalidate(REISERFS_SB(s)->priv_root);
- dput(REISERFS_SB(s)->priv_root);
- }
+ if (s->s_dirt)
+ reiserfs_write_super(s);
/* change file system state to current state if it was mounted with read-write permissions */
if (!(s->s_flags & MS_RDONLY)) {
*/
journal_release(&th, s);
- for (i = 0; i < SB_BMAP_NR(s); i++)
- brelse(SB_AP_BITMAP(s)[i].bh);
-
- vfree(SB_AP_BITMAP(s));
+ reiserfs_free_bitmap_cache(s);
brelse(SB_BUFFER_WITH_SB(s));
print_statistics(s);
if (REISERFS_SB(s)->reserved_blocks != 0) {
- reiserfs_warning(s,
- "green-2005: reiserfs_put_super: reserved blocks left %d",
+ reiserfs_warning(s, "green-2005", "reserved blocks left %d",
REISERFS_SB(s)->reserved_blocks);
}
reiserfs_proc_info_done(s);
+ reiserfs_write_unlock(s);
+ mutex_destroy(&REISERFS_SB(s)->lock);
kfree(s->s_fs_info);
s->s_fs_info = NULL;
-
- return;
}
-static kmem_cache_t *reiserfs_inode_cachep;
+static struct kmem_cache *reiserfs_inode_cachep;
static struct inode *reiserfs_alloc_inode(struct super_block *sb)
{
struct reiserfs_inode_info *ei;
ei = (struct reiserfs_inode_info *)
- kmem_cache_alloc(reiserfs_inode_cachep, SLAB_KERNEL);
+ kmem_cache_alloc(reiserfs_inode_cachep, GFP_KERNEL);
if (!ei)
return NULL;
return &ei->vfs_inode;
kmem_cache_free(reiserfs_inode_cachep, REISERFS_I(inode));
}
-static void init_once(void *foo, kmem_cache_t * cachep, unsigned long flags)
+static void init_once(void *foo)
{
struct reiserfs_inode_info *ei = (struct reiserfs_inode_info *)foo;
- if ((flags & (SLAB_CTOR_VERIFY | SLAB_CTOR_CONSTRUCTOR)) ==
- SLAB_CTOR_CONSTRUCTOR) {
- INIT_LIST_HEAD(&ei->i_prealloc_list);
- inode_init_once(&ei->vfs_inode);
- ei->i_acl_access = NULL;
- ei->i_acl_default = NULL;
- }
+ INIT_LIST_HEAD(&ei->i_prealloc_list);
+ inode_init_once(&ei->vfs_inode);
}
static int init_inodecache(void)
reiserfs_inode_cachep = kmem_cache_create("reiser_inode_cache",
sizeof(struct
reiserfs_inode_info),
- 0, SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
- init_once, NULL);
+ 0, (SLAB_RECLAIM_ACCOUNT|
+ SLAB_MEM_SPREAD),
+ init_once);
if (reiserfs_inode_cachep == NULL)
return -ENOMEM;
return 0;
static void destroy_inodecache(void)
{
- if (kmem_cache_destroy(reiserfs_inode_cachep))
- reiserfs_warning(NULL,
- "reiserfs_inode_cache: not all structures were freed");
+ kmem_cache_destroy(reiserfs_inode_cachep);
}
/* we don't mark inodes dirty, we just log them */
struct reiserfs_transaction_handle th;
int err = 0;
+ int lock_depth;
+
if (inode->i_sb->s_flags & MS_RDONLY) {
- reiserfs_warning(inode->i_sb,
- "clm-6006: writing inode %lu on readonly FS",
+ reiserfs_warning(inode->i_sb, "clm-6006",
+ "writing inode %lu on readonly FS",
inode->i_ino);
return;
}
- reiserfs_write_lock(inode->i_sb);
+ lock_depth = reiserfs_write_lock_once(inode->i_sb);
/* this is really only used for atime updates, so they don't have
** to be included in O_SYNC or fsync
*/
err = journal_begin(&th, inode->i_sb, 1);
- if (err) {
- reiserfs_write_unlock(inode->i_sb);
- return;
- }
+ if (err)
+ goto out;
+
reiserfs_update_sd(&th, inode);
journal_end(&th, inode->i_sb, 1);
- reiserfs_write_unlock(inode->i_sb);
+
+out:
+ reiserfs_write_unlock_once(inode->i_sb, lock_depth);
}
static void reiserfs_clear_inode(struct inode *inode)
{
- struct posix_acl *acl;
-
- acl = REISERFS_I(inode)->i_acl_access;
- if (acl && !IS_ERR(acl))
- posix_acl_release(acl);
- REISERFS_I(inode)->i_acl_access = NULL;
-
- acl = REISERFS_I(inode)->i_acl_default;
- if (acl && !IS_ERR(acl))
- posix_acl_release(acl);
- REISERFS_I(inode)->i_acl_default = NULL;
+ dquot_drop(inode);
}
#ifdef CONFIG_QUOTA
loff_t);
#endif
-static struct super_operations reiserfs_sops = {
+static const struct super_operations reiserfs_sops = {
.alloc_inode = reiserfs_alloc_inode,
.destroy_inode = reiserfs_destroy_inode,
.write_inode = reiserfs_write_inode,
.dirty_inode = reiserfs_dirty_inode,
- .delete_inode = reiserfs_delete_inode,
.clear_inode = reiserfs_clear_inode,
+ .delete_inode = reiserfs_delete_inode,
.put_super = reiserfs_put_super,
.write_super = reiserfs_write_super,
.sync_fs = reiserfs_sync_fs,
- .write_super_lockfs = reiserfs_write_super_lockfs,
- .unlockfs = reiserfs_unlockfs,
+ .freeze_fs = reiserfs_freeze,
+ .unfreeze_fs = reiserfs_unfreeze,
.statfs = reiserfs_statfs,
.remount_fs = reiserfs_remount,
+ .show_options = generic_show_options,
#ifdef CONFIG_QUOTA
.quota_read = reiserfs_quota_read,
.quota_write = reiserfs_quota_write,
#ifdef CONFIG_QUOTA
#define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group")
-static int reiserfs_dquot_initialize(struct inode *, int);
-static int reiserfs_dquot_drop(struct inode *);
static int reiserfs_write_dquot(struct dquot *);
static int reiserfs_acquire_dquot(struct dquot *);
static int reiserfs_release_dquot(struct dquot *);
static int reiserfs_mark_dquot_dirty(struct dquot *);
static int reiserfs_write_info(struct super_block *, int);
-static int reiserfs_quota_on(struct super_block *, int, int, char *);
-
-static struct dquot_operations reiserfs_quota_operations = {
- .initialize = reiserfs_dquot_initialize,
- .drop = reiserfs_dquot_drop,
- .alloc_space = dquot_alloc_space,
- .alloc_inode = dquot_alloc_inode,
- .free_space = dquot_free_space,
- .free_inode = dquot_free_inode,
- .transfer = dquot_transfer,
+static int reiserfs_quota_on(struct super_block *, int, int, char *, int);
+
+static const struct dquot_operations reiserfs_quota_operations = {
+ .initialize = dquot_initialize,
.write_dquot = reiserfs_write_dquot,
.acquire_dquot = reiserfs_acquire_dquot,
.release_dquot = reiserfs_release_dquot,
.mark_dirty = reiserfs_mark_dquot_dirty,
.write_info = reiserfs_write_info,
+ .alloc_dquot = dquot_alloc,
+ .destroy_dquot = dquot_destroy,
};
-static struct quotactl_ops reiserfs_qctl_operations = {
+static const struct quotactl_ops reiserfs_qctl_operations = {
.quota_on = reiserfs_quota_on,
.quota_off = vfs_quota_off,
.quota_sync = vfs_quota_sync,
};
#endif
-static struct export_operations reiserfs_export_ops = {
+static const struct export_operations reiserfs_export_ops = {
.encode_fh = reiserfs_encode_fh,
- .decode_fh = reiserfs_decode_fh,
+ .fh_to_dentry = reiserfs_fh_to_dentry,
+ .fh_to_parent = reiserfs_fh_to_parent,
.get_parent = reiserfs_get_parent,
- .get_dentry = reiserfs_get_dentry,
};
/* this struct is used in reiserfs_getopt () for containing the value for those
(1 << REISERFS_DATA_ORDERED | 1 << REISERFS_DATA_WRITEBACK)},
{"writeback", 1 << REISERFS_DATA_WRITEBACK,
(1 << REISERFS_DATA_ORDERED | 1 << REISERFS_DATA_LOG)},
- {NULL, 0}
+ {.value = NULL}
};
/* possible values for -o barrier= */
static const arg_desc_t barrier_mode[] = {
{"none", 1 << REISERFS_BARRIER_NONE, 1 << REISERFS_BARRIER_FLUSH},
{"flush", 1 << REISERFS_BARRIER_FLUSH, 1 << REISERFS_BARRIER_NONE},
- {NULL, 0}
+ {.value = NULL}
};
/* possible values for "-o block-allocator=" and bits which are to be set in
{NULL, 0, 0},
};
-int reiserfs_default_io_size = 128 * 1024; /* Default recommended I/O size is 128k.
- There might be broken applications that are
- confused by this. Use nolargeio mount option
- to get usual i/o size = PAGE_SIZE.
- */
-
/* proceed only one option from a list *cur - string containing of mount options
opts - array of options which are accepted
opt_arg - if option is found and requires an argument and if it is specifed
char **opt_arg, unsigned long *bit_flags)
{
char *p;
- /* foo=bar,
+ /* foo=bar,
^ ^ ^
| | +-- option_end
| +-- arg_start
if (bit_flags) {
if (opt->clrmask ==
(1 << REISERFS_UNSUPPORTED_OPT))
- reiserfs_warning(s, "%s not supported.",
+ reiserfs_warning(s, "super-6500",
+ "%s not supported.\n",
p);
else
*bit_flags &= ~opt->clrmask;
if (opt->setmask ==
(1 << REISERFS_UNSUPPORTED_OPT))
- reiserfs_warning(s, "%s not supported.",
+ reiserfs_warning(s, "super-6501",
+ "%s not supported.\n",
p);
else
*bit_flags |= opt->setmask;
}
}
if (!opt->option_name) {
- reiserfs_warning(s, "unknown mount option \"%s\"", p);
+ reiserfs_warning(s, "super-6502",
+ "unknown mount option \"%s\"", p);
return -1;
}
switch (*p) {
case '=':
if (!opt->arg_required) {
- reiserfs_warning(s,
- "the option \"%s\" does not require an argument",
+ reiserfs_warning(s, "super-6503",
+ "the option \"%s\" does not "
+ "require an argument\n",
opt->option_name);
return -1;
}
case 0:
if (opt->arg_required) {
- reiserfs_warning(s,
- "the option \"%s\" requires an argument",
- opt->option_name);
+ reiserfs_warning(s, "super-6504",
+ "the option \"%s\" requires an "
+ "argument\n", opt->option_name);
return -1;
}
break;
default:
- reiserfs_warning(s, "head of option \"%s\" is only correct",
+ reiserfs_warning(s, "super-6505",
+ "head of option \"%s\" is only correct\n",
opt->option_name);
return -1;
}
&& !(opt->arg_required & (1 << REISERFS_OPT_ALLOWEMPTY))
&& !strlen(p)) {
/* this catches "option=," if not allowed */
- reiserfs_warning(s, "empty argument for \"%s\"",
+ reiserfs_warning(s, "super-6506",
+ "empty argument for \"%s\"\n",
opt->option_name);
return -1;
}
}
}
- reiserfs_warning(s, "bad value \"%s\" for option \"%s\"", p,
+ reiserfs_warning(s, "super-6506",
+ "bad value \"%s\" for option \"%s\"\n", p,
opt->option_name);
return -1;
}
mount options were selected. */
unsigned long *blocks, /* strtol-ed from NNN of resize=NNN */
char **jdev_name,
- unsigned int *commit_max_age)
+ unsigned int *commit_max_age,
+ char **qf_names,
+ unsigned int *qfmt)
{
int c;
char *arg = NULL;
{"conv",.setmask = 1 << REISERFS_CONVERT},
{"attrs",.setmask = 1 << REISERFS_ATTRS},
{"noattrs",.clrmask = 1 << REISERFS_ATTRS},
+ {"expose_privroot", .setmask = 1 << REISERFS_EXPOSE_PRIVROOT},
#ifdef CONFIG_REISERFS_FS_XATTR
{"user_xattr",.setmask = 1 << REISERFS_XATTRS_USER},
{"nouser_xattr",.clrmask = 1 << REISERFS_XATTRS_USER},
{"acl",.setmask = 1 << REISERFS_UNSUPPORTED_OPT},
{"noacl",.clrmask = 1 << REISERFS_UNSUPPORTED_OPT},
#endif
- {"nolog",}, /* This is unsupported */
+ {.option_name = "nolog"},
{"replayonly",.setmask = 1 << REPLAYONLY},
{"block-allocator",.arg_required = 'a',.values = balloc},
{"data",.arg_required = 'd',.values = logging_mode},
{"grpjquota",.arg_required =
'g' | (1 << REISERFS_OPT_ALLOWEMPTY),.values = NULL},
{"jqfmt",.arg_required = 'f',.values = NULL},
- {NULL,}
+ {.option_name = NULL}
};
*blocks = 0;
*blocks = simple_strtoul(arg, &p, 0);
if (*p != '\0') {
/* NNN does not look like a number */
- reiserfs_warning(s,
- "reiserfs_parse_options: bad value %s",
- arg);
+ reiserfs_warning(s, "super-6507",
+ "bad value %s for "
+ "-oresize\n", arg);
return 0;
}
}
unsigned long val = simple_strtoul(arg, &p, 0);
/* commit=NNN (time in seconds) */
if (*p != '\0' || val >= (unsigned int)-1) {
- reiserfs_warning(s,
- "reiserfs_parse_options: bad value %s",
+ reiserfs_warning(s, "super-6508",
+ "bad value %s for -ocommit\n",
arg);
return 0;
}
}
if (c == 'w') {
- char *p = NULL;
- int val = simple_strtoul(arg, &p, 0);
-
- if (*p != '\0') {
- reiserfs_warning(s,
- "reiserfs_parse_options: non-numeric value %s for nolargeio option",
- arg);
- return 0;
- }
- if (val)
- reiserfs_default_io_size = PAGE_SIZE;
- else
- reiserfs_default_io_size = 128 * 1024;
+ reiserfs_warning(s, "super-6509", "nolargeio option "
+ "is no longer supported");
+ return 0;
}
if (c == 'j') {
if (arg && *arg && jdev_name) {
if (*jdev_name) { //Hm, already assigned?
- reiserfs_warning(s,
- "reiserfs_parse_options: journal device was already specified to be %s",
- *jdev_name);
+ reiserfs_warning(s, "super-6510",
+ "journal device was "
+ "already specified to "
+ "be %s", *jdev_name);
return 0;
}
*jdev_name = arg;
if (c == 'u' || c == 'g') {
int qtype = c == 'u' ? USRQUOTA : GRPQUOTA;
- if (sb_any_quota_enabled(s)) {
- reiserfs_warning(s,
- "reiserfs_parse_options: cannot change journalled quota options when quota turned on.");
+ if (sb_any_quota_loaded(s) &&
+ (!*arg != !REISERFS_SB(s)->s_qf_names[qtype])) {
+ reiserfs_warning(s, "super-6511",
+ "cannot change journaled "
+ "quota options when quota "
+ "turned on.");
return 0;
}
if (*arg) { /* Some filename specified? */
if (REISERFS_SB(s)->s_qf_names[qtype]
&& strcmp(REISERFS_SB(s)->s_qf_names[qtype],
arg)) {
- reiserfs_warning(s,
- "reiserfs_parse_options: %s quota file already specified.",
+ reiserfs_warning(s, "super-6512",
+ "%s quota file "
+ "already specified.",
QTYPE2NAME(qtype));
return 0;
}
if (strchr(arg, '/')) {
- reiserfs_warning(s,
- "reiserfs_parse_options: quotafile must be on filesystem root.");
+ reiserfs_warning(s, "super-6513",
+ "quotafile must be "
+ "on filesystem root.");
return 0;
}
- REISERFS_SB(s)->s_qf_names[qtype] =
+ qf_names[qtype] =
kmalloc(strlen(arg) + 1, GFP_KERNEL);
- if (!REISERFS_SB(s)->s_qf_names[qtype]) {
- reiserfs_warning(s,
- "reiserfs_parse_options: not enough memory for storing quotafile name.");
+ if (!qf_names[qtype]) {
+ reiserfs_warning(s, "reiserfs-2502",
+ "not enough memory "
+ "for storing "
+ "quotafile name.");
return 0;
}
- strcpy(REISERFS_SB(s)->s_qf_names[qtype], arg);
+ strcpy(qf_names[qtype], arg);
*mount_options |= 1 << REISERFS_QUOTA;
} else {
- kfree(REISERFS_SB(s)->s_qf_names[qtype]);
- REISERFS_SB(s)->s_qf_names[qtype] = NULL;
+ if (qf_names[qtype] !=
+ REISERFS_SB(s)->s_qf_names[qtype])
+ kfree(qf_names[qtype]);
+ qf_names[qtype] = NULL;
}
}
if (c == 'f') {
if (!strcmp(arg, "vfsold"))
- REISERFS_SB(s)->s_jquota_fmt = QFMT_VFS_OLD;
+ *qfmt = QFMT_VFS_OLD;
else if (!strcmp(arg, "vfsv0"))
- REISERFS_SB(s)->s_jquota_fmt = QFMT_VFS_V0;
+ *qfmt = QFMT_VFS_V0;
else {
- reiserfs_warning(s,
- "reiserfs_parse_options: unknown quota format specified.");
+ reiserfs_warning(s, "super-6514",
+ "unknown quota format "
+ "specified.");
+ return 0;
+ }
+ if (sb_any_quota_loaded(s) &&
+ *qfmt != REISERFS_SB(s)->s_jquota_fmt) {
+ reiserfs_warning(s, "super-6515",
+ "cannot change journaled "
+ "quota options when quota "
+ "turned on.");
return 0;
}
}
#else
if (c == 'u' || c == 'g' || c == 'f') {
- reiserfs_warning(s,
- "reiserfs_parse_options: journalled quota options not supported.");
+ reiserfs_warning(s, "reiserfs-2503", "journaled "
+ "quota options not supported.");
return 0;
}
#endif
}
#ifdef CONFIG_QUOTA
- if (!REISERFS_SB(s)->s_jquota_fmt
- && (REISERFS_SB(s)->s_qf_names[USRQUOTA]
- || REISERFS_SB(s)->s_qf_names[GRPQUOTA])) {
- reiserfs_warning(s,
- "reiserfs_parse_options: journalled quota format not specified.");
+ if (!REISERFS_SB(s)->s_jquota_fmt && !*qfmt
+ && (qf_names[USRQUOTA] || qf_names[GRPQUOTA])) {
+ reiserfs_warning(s, "super-6515",
+ "journaled quota format not specified.");
return 0;
}
/* This checking is not precise wrt the quota type but for our purposes it is sufficient */
if (!(*mount_options & (1 << REISERFS_QUOTA))
- && sb_any_quota_enabled(s)) {
- reiserfs_warning(s,
- "reiserfs_parse_options: quota options must be present when quota is turned on.");
+ && sb_any_quota_loaded(s)) {
+ reiserfs_warning(s, "super-6516", "quota options must "
+ "be present when quota is turned on.");
return 0;
}
#endif
if (reiserfs_attrs(s)) {
if (old_format_only(s)) {
- reiserfs_warning(s,
- "reiserfs: cannot support attributes on 3.5.x disk format");
+ reiserfs_warning(s, "super-6517", "cannot support "
+ "attributes on 3.5.x disk format");
REISERFS_SB(s)->s_mount_opt &= ~(1 << REISERFS_ATTRS);
return;
}
if (!(le32_to_cpu(rs->s_flags) & reiserfs_attrs_cleared)) {
- reiserfs_warning(s,
- "reiserfs: cannot support attributes until flag is set in super-block");
+ reiserfs_warning(s, "super-6518", "cannot support "
+ "attributes until flag is set in "
+ "super-block");
REISERFS_SB(s)->s_mount_opt &= ~(1 << REISERFS_ATTRS);
}
}
}
+#ifdef CONFIG_QUOTA
+static void handle_quota_files(struct super_block *s, char **qf_names,
+ unsigned int *qfmt)
+{
+ int i;
+
+ for (i = 0; i < MAXQUOTAS; i++) {
+ if (qf_names[i] != REISERFS_SB(s)->s_qf_names[i])
+ kfree(REISERFS_SB(s)->s_qf_names[i]);
+ REISERFS_SB(s)->s_qf_names[i] = qf_names[i];
+ }
+ REISERFS_SB(s)->s_jquota_fmt = *qfmt;
+}
+#endif
+
static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
{
struct reiserfs_super_block *rs;
unsigned long safe_mask = 0;
unsigned int commit_max_age = (unsigned int)-1;
struct reiserfs_journal *journal = SB_JOURNAL(s);
+ char *new_opts = kstrdup(arg, GFP_KERNEL);
int err;
+ char *qf_names[MAXQUOTAS];
+ unsigned int qfmt = 0;
#ifdef CONFIG_QUOTA
int i;
#endif
+ reiserfs_write_lock(s);
+
+#ifdef CONFIG_QUOTA
+ memcpy(qf_names, REISERFS_SB(s)->s_qf_names, sizeof(qf_names));
+#endif
+
rs = SB_DISK_SUPER_BLOCK(s);
if (!reiserfs_parse_options
- (s, arg, &mount_options, &blocks, NULL, &commit_max_age)) {
+ (s, arg, &mount_options, &blocks, NULL, &commit_max_age,
+ qf_names, &qfmt)) {
#ifdef CONFIG_QUOTA
- for (i = 0; i < MAXQUOTAS; i++) {
- kfree(REISERFS_SB(s)->s_qf_names[i]);
- REISERFS_SB(s)->s_qf_names[i] = NULL;
- }
+ for (i = 0; i < MAXQUOTAS; i++)
+ if (qf_names[i] != REISERFS_SB(s)->s_qf_names[i])
+ kfree(qf_names[i]);
#endif
- return -EINVAL;
+ err = -EINVAL;
+ goto out_err;
}
+#ifdef CONFIG_QUOTA
+ handle_quota_files(s, qf_names, &qfmt);
+#endif
handle_attrs(s);
}
if (blocks) {
- int rc = reiserfs_resize(s, blocks);
- if (rc != 0)
- return rc;
+ err = reiserfs_resize(s, blocks);
+ if (err != 0)
+ goto out_err;
}
if (*mount_flags & MS_RDONLY) {
/* remount read-only */
if (s->s_flags & MS_RDONLY)
/* it is read-only already */
- return 0;
+ goto out_ok;
/* try to remount file system with read-only permissions */
if (sb_umount_state(rs) == REISERFS_VALID_FS
|| REISERFS_SB(s)->s_mount_state != REISERFS_VALID_FS) {
- return 0;
+ goto out_ok;
}
err = journal_begin(&th, s, 10);
if (err)
- return err;
+ goto out_err;
/* Mounting a rw partition read-only. */
reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
/* remount read-write */
if (!(s->s_flags & MS_RDONLY)) {
reiserfs_xattr_init(s, *mount_flags);
- return 0; /* We are read-write already */
+ goto out_ok; /* We are read-write already */
}
- if (reiserfs_is_journal_aborted(journal))
- return journal->j_errno;
+ if (reiserfs_is_journal_aborted(journal)) {
+ err = journal->j_errno;
+ goto out_err;
+ }
handle_data_mode(s, mount_options);
handle_barrier_mode(s, mount_options);
s->s_flags &= ~MS_RDONLY; /* now it is safe to call journal_begin */
err = journal_begin(&th, s, 10);
if (err)
- return err;
+ goto out_err;
/* Mount a partition which is read-only, read-write */
reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
REISERFS_SB(s)->s_mount_state = sb_umount_state(rs);
s->s_flags &= ~MS_RDONLY;
set_sb_umount_state(rs, REISERFS_ERROR_FS);
+ if (!old_format_only(s))
+ set_sb_mnt_count(rs, sb_mnt_count(rs) + 1);
/* mark_buffer_dirty (SB_BUFFER_WITH_SB (s), 1); */
journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB(s));
REISERFS_SB(s)->s_mount_state = REISERFS_VALID_FS;
SB_JOURNAL(s)->j_must_wait = 1;
err = journal_end(&th, s, 10);
if (err)
- return err;
+ goto out_err;
s->s_dirt = 0;
if (!(*mount_flags & MS_RDONLY)) {
reiserfs_xattr_init(s, *mount_flags);
}
+out_ok:
+ replace_mount_options(s, new_opts);
+ reiserfs_write_unlock(s);
return 0;
-}
-
-/* load_bitmap_info_data - Sets up the reiserfs_bitmap_info structure from disk.
- * @sb - superblock for this filesystem
- * @bi - the bitmap info to be loaded. Requires that bi->bh is valid.
- *
- * This routine counts how many free bits there are, finding the first zero
- * as a side effect. Could also be implemented as a loop of test_bit() calls, or
- * a loop of find_first_zero_bit() calls. This implementation is similar to
- * find_first_zero_bit(), but doesn't return after it finds the first bit.
- * Should only be called on fs mount, but should be fairly efficient anyways.
- *
- * bi->first_zero_hint is considered unset if it == 0, since the bitmap itself
- * will * invariably occupt block 0 represented in the bitmap. The only
- * exception to this is when free_count also == 0, since there will be no
- * free blocks at all.
- */
-
-static void load_bitmap_info_data(struct super_block *sb,
- struct reiserfs_bitmap_info *bi)
-{
- unsigned long *cur = (unsigned long *)bi->bh->b_data;
-
- while ((char *)cur < (bi->bh->b_data + sb->s_blocksize)) {
-
- /* No need to scan if all 0's or all 1's.
- * Since we're only counting 0's, we can simply ignore all 1's */
- if (*cur == 0) {
- if (bi->first_zero_hint == 0) {
- bi->first_zero_hint =
- ((char *)cur - bi->bh->b_data) << 3;
- }
- bi->free_count += sizeof(unsigned long) * 8;
- } else if (*cur != ~0L) {
- int b;
- for (b = 0; b < sizeof(unsigned long) * 8; b++) {
- if (!reiserfs_test_le_bit(b, cur)) {
- bi->free_count++;
- if (bi->first_zero_hint == 0)
- bi->first_zero_hint =
- (((char *)cur -
- bi->bh->b_data) << 3) + b;
- }
- }
- }
- cur++;
- }
-
-#ifdef CONFIG_REISERFS_CHECK
-// This outputs a lot of unneded info on big FSes
-// reiserfs_warning ("bitmap loaded from block %d: %d free blocks",
-// bi->bh->b_blocknr, bi->free_count);
-#endif
-}
-
-static int read_bitmaps(struct super_block *s)
-{
- int i, bmap_nr;
-
- SB_AP_BITMAP(s) =
- vmalloc(sizeof(struct reiserfs_bitmap_info) * SB_BMAP_NR(s));
- if (SB_AP_BITMAP(s) == 0)
- return 1;
- memset(SB_AP_BITMAP(s), 0,
- sizeof(struct reiserfs_bitmap_info) * SB_BMAP_NR(s));
- for (i = 0, bmap_nr =
- REISERFS_DISK_OFFSET_IN_BYTES / s->s_blocksize + 1;
- i < SB_BMAP_NR(s); i++, bmap_nr = s->s_blocksize * 8 * i) {
- SB_AP_BITMAP(s)[i].bh = sb_getblk(s, bmap_nr);
- if (!buffer_uptodate(SB_AP_BITMAP(s)[i].bh))
- ll_rw_block(READ, 1, &SB_AP_BITMAP(s)[i].bh);
- }
- for (i = 0; i < SB_BMAP_NR(s); i++) {
- wait_on_buffer(SB_AP_BITMAP(s)[i].bh);
- if (!buffer_uptodate(SB_AP_BITMAP(s)[i].bh)) {
- reiserfs_warning(s, "sh-2029: reiserfs read_bitmaps: "
- "bitmap block (#%lu) reading failed",
- SB_AP_BITMAP(s)[i].bh->b_blocknr);
- for (i = 0; i < SB_BMAP_NR(s); i++)
- brelse(SB_AP_BITMAP(s)[i].bh);
- vfree(SB_AP_BITMAP(s));
- SB_AP_BITMAP(s) = NULL;
- return 1;
- }
- load_bitmap_info_data(s, SB_AP_BITMAP(s) + i);
- }
- return 0;
-}
-
-static int read_old_bitmaps(struct super_block *s)
-{
- int i;
- struct reiserfs_super_block *rs = SB_DISK_SUPER_BLOCK(s);
- int bmp1 = (REISERFS_OLD_DISK_OFFSET_IN_BYTES / s->s_blocksize) + 1; /* first of bitmap blocks */
-
- /* read true bitmap */
- SB_AP_BITMAP(s) =
- vmalloc(sizeof(struct reiserfs_buffer_info *) * sb_bmap_nr(rs));
- if (SB_AP_BITMAP(s) == 0)
- return 1;
- memset(SB_AP_BITMAP(s), 0,
- sizeof(struct reiserfs_buffer_info *) * sb_bmap_nr(rs));
-
- for (i = 0; i < sb_bmap_nr(rs); i++) {
- SB_AP_BITMAP(s)[i].bh = sb_bread(s, bmp1 + i);
- if (!SB_AP_BITMAP(s)[i].bh)
- return 1;
- load_bitmap_info_data(s, SB_AP_BITMAP(s) + i);
- }
-
- return 0;
+out_err:
+ kfree(new_opts);
+ reiserfs_write_unlock(s);
+ return err;
}
static int read_super_block(struct super_block *s, int offset)
bh = sb_bread(s, offset / s->s_blocksize);
if (!bh) {
- reiserfs_warning(s, "sh-2006: read_super_block: "
+ reiserfs_warning(s, "sh-2006",
"bread failed (dev %s, block %lu, size %lu)",
reiserfs_bdevname(s), offset / s->s_blocksize,
s->s_blocksize);
}
//
// ok, reiserfs signature (old or new) found in at the given offset
- //
+ //
fs_blocksize = sb_blocksize(rs);
brelse(bh);
sb_set_blocksize(s, fs_blocksize);
bh = sb_bread(s, offset / s->s_blocksize);
if (!bh) {
- reiserfs_warning(s, "sh-2007: read_super_block: "
- "bread failed (dev %s, block %lu, size %lu)\n",
+ reiserfs_warning(s, "sh-2007",
+ "bread failed (dev %s, block %lu, size %lu)",
reiserfs_bdevname(s), offset / s->s_blocksize,
s->s_blocksize);
return 1;
rs = (struct reiserfs_super_block *)bh->b_data;
if (sb_blocksize(rs) != s->s_blocksize) {
- reiserfs_warning(s, "sh-2011: read_super_block: "
- "can't find a reiserfs filesystem on (dev %s, block %Lu, size %lu)\n",
+ reiserfs_warning(s, "sh-2011", "can't find a reiserfs "
+ "filesystem on (dev %s, block %Lu, size %lu)",
reiserfs_bdevname(s),
(unsigned long long)bh->b_blocknr,
s->s_blocksize);
if (rs->s_v1.s_root_block == cpu_to_le32(-1)) {
brelse(bh);
- reiserfs_warning(s,
- "Unfinished reiserfsck --rebuild-tree run detected. Please run\n"
- "reiserfsck --rebuild-tree and wait for a completion. If that fails\n"
+ reiserfs_warning(s, "super-6519", "Unfinished reiserfsck "
+ "--rebuild-tree run detected. Please run\n"
+ "reiserfsck --rebuild-tree and wait for a "
+ "completion. If that fails\n"
"get newer reiserfsprogs package");
return 1;
}
/* magic is of non-standard journal filesystem, look at s_version to
find which format is in use */
if (sb_version(rs) == REISERFS_VERSION_2)
- reiserfs_warning(s,
- "read_super_block: found reiserfs format \"3.6\""
- " with non-standard journal");
+ reiserfs_info(s, "found reiserfs format \"3.6\""
+ " with non-standard journal\n");
else if (sb_version(rs) == REISERFS_VERSION_1)
- reiserfs_warning(s,
- "read_super_block: found reiserfs format \"3.5\""
- " with non-standard journal");
+ reiserfs_info(s, "found reiserfs format \"3.5\""
+ " with non-standard journal\n");
else {
- reiserfs_warning(s,
- "sh-2012: read_super_block: found unknown "
- "format \"%u\" of reiserfs with non-standard magic",
- sb_version(rs));
+ reiserfs_warning(s, "sh-2012", "found unknown "
+ "format \"%u\" of reiserfs with "
+ "non-standard magic", sb_version(rs));
return 1;
}
} else
/* after journal replay, reread all bitmap and super blocks */
static int reread_meta_blocks(struct super_block *s)
{
- int i;
ll_rw_block(READ, 1, &(SB_BUFFER_WITH_SB(s)));
+ reiserfs_write_unlock(s);
wait_on_buffer(SB_BUFFER_WITH_SB(s));
+ reiserfs_write_lock(s);
if (!buffer_uptodate(SB_BUFFER_WITH_SB(s))) {
- reiserfs_warning(s,
- "reread_meta_blocks, error reading the super");
+ reiserfs_warning(s, "reiserfs-2504", "error reading the super");
return 1;
}
- for (i = 0; i < SB_BMAP_NR(s); i++) {
- ll_rw_block(READ, 1, &(SB_AP_BITMAP(s)[i].bh));
- wait_on_buffer(SB_AP_BITMAP(s)[i].bh);
- if (!buffer_uptodate(SB_AP_BITMAP(s)[i].bh)) {
- reiserfs_warning(s,
- "reread_meta_blocks, error reading bitmap block number %d at %llu",
- i,
- (unsigned long long)SB_AP_BITMAP(s)[i].
- bh->b_blocknr);
- return 1;
- }
- }
return 0;
-
}
/////////////////////////////////////////////////////
if (reiserfs_rupasov_hash(s)) {
hash = YURA_HASH;
}
- reiserfs_warning(s, "FS seems to be empty, autodetect "
- "is using the default hash");
+ reiserfs_info(s, "FS seems to be empty, autodetect "
+ "is using the default hash\n");
break;
}
r5hash = GET_HASH_VALUE(r5_hash(de.de_name, de.de_namelen));
&& (yurahash ==
GET_HASH_VALUE(deh_offset
(&(de.de_deh[de.de_entry_num])))))) {
- reiserfs_warning(s,
- "Unable to automatically detect hash function. "
- "Please mount with -o hash={tea,rupasov,r5}",
- reiserfs_bdevname(s));
+ reiserfs_warning(s, "reiserfs-2506", "Unable to "
+ "automatically detect hash function. "
+ "Please mount with -o "
+ "hash={tea,rupasov,r5}");
hash = UNSET_HASH;
break;
}
(deh_offset(&(de.de_deh[de.de_entry_num]))) == r5hash)
hash = R5_HASH;
else {
- reiserfs_warning(s, "Unrecognised hash function");
+ reiserfs_warning(s, "reiserfs-2506",
+ "Unrecognised hash function");
hash = UNSET_HASH;
}
} while (0);
code = find_hash_out(s);
if (code != UNSET_HASH && reiserfs_hash_detect(s)) {
- /* detection has found the hash, and we must check against the
- ** mount options
+ /* detection has found the hash, and we must check against the
+ ** mount options
*/
if (reiserfs_rupasov_hash(s) && code != YURA_HASH) {
- reiserfs_warning(s, "Error, %s hash detected, "
+ reiserfs_warning(s, "reiserfs-2507",
+ "Error, %s hash detected, "
"unable to force rupasov hash",
reiserfs_hashname(code));
code = UNSET_HASH;
} else if (reiserfs_tea_hash(s) && code != TEA_HASH) {
- reiserfs_warning(s, "Error, %s hash detected, "
+ reiserfs_warning(s, "reiserfs-2508",
+ "Error, %s hash detected, "
"unable to force tea hash",
reiserfs_hashname(code));
code = UNSET_HASH;
} else if (reiserfs_r5_hash(s) && code != R5_HASH) {
- reiserfs_warning(s, "Error, %s hash detected, "
+ reiserfs_warning(s, "reiserfs-2509",
+ "Error, %s hash detected, "
"unable to force r5 hash",
reiserfs_hashname(code));
code = UNSET_HASH;
}
}
- /* if we are mounted RW, and we have a new valid hash code, update
+ /* if we are mounted RW, and we have a new valid hash code, update
** the super
*/
if (code != UNSET_HASH &&
return 0;
}
-#define SWARN(silent, s, ...) \
+#define SWARN(silent, s, id, ...) \
if (!(silent)) \
- reiserfs_warning (s, __VA_ARGS__)
+ reiserfs_warning(s, id, __VA_ARGS__)
static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
{
struct inode *root_inode;
- int j;
struct reiserfs_transaction_handle th;
int old_format = 0;
unsigned long blocks;
char *jdev_name;
struct reiserfs_sb_info *sbi;
int errval = -EINVAL;
+ char *qf_names[MAXQUOTAS] = {};
+ unsigned int qfmt = 0;
+
+ save_mount_options(s, data);
- sbi = kmalloc(sizeof(struct reiserfs_sb_info), GFP_KERNEL);
+ sbi = kzalloc(sizeof(struct reiserfs_sb_info), GFP_KERNEL);
if (!sbi) {
errval = -ENOMEM;
- goto error;
+ goto error_alloc;
}
s->s_fs_info = sbi;
- memset(sbi, 0, sizeof(struct reiserfs_sb_info));
/* Set default values for options: non-aggressive tails, RO on errors */
REISERFS_SB(s)->s_mount_opt |= (1 << REISERFS_SMALLTAIL);
REISERFS_SB(s)->s_mount_opt |= (1 << REISERFS_ERROR_RO);
REISERFS_SB(s)->s_alloc_options.preallocmin = 0;
/* Preallocate by 16 blocks (17-1) at once */
REISERFS_SB(s)->s_alloc_options.preallocsize = 17;
- /* Initialize the rwsem for xattr dir */
- init_rwsem(&REISERFS_SB(s)->xattr_dir_sem);
-
/* setup default block allocator options */
reiserfs_init_alloc_options(s);
+ mutex_init(&REISERFS_SB(s)->lock);
+ REISERFS_SB(s)->lock_depth = -1;
+
+ /*
+ * This function is called with the bkl, which also was the old
+ * locking used here.
+ * do_journal_begin() will soon check if we hold the lock (ie: was the
+ * bkl). This is likely because do_journal_begin() has several another
+ * callers because at this time, it doesn't seem to be necessary to
+ * protect against anything.
+ * Anyway, let's be conservative and lock for now.
+ */
+ reiserfs_write_lock(s);
+
jdev_name = NULL;
if (reiserfs_parse_options
(s, (char *)data, &(sbi->s_mount_opt), &blocks, &jdev_name,
- &commit_max_age) == 0) {
+ &commit_max_age, qf_names, &qfmt) == 0) {
goto error;
}
+#ifdef CONFIG_QUOTA
+ handle_quota_files(s, qf_names, &qfmt);
+#endif
if (blocks) {
- SWARN(silent, s, "jmacd-7: reiserfs_fill_super: resize option "
- "for remount only");
+ SWARN(silent, s, "jmacd-7", "resize option for remount only");
goto error;
}
old_format = 1;
/* try new format (64-th 1k block), which can contain reiserfs super block */
else if (read_super_block(s, REISERFS_DISK_OFFSET_IN_BYTES)) {
- SWARN(silent, s,
- "sh-2021: reiserfs_fill_super: can not find reiserfs on %s",
+ SWARN(silent, s, "sh-2021", "can not find reiserfs on %s",
reiserfs_bdevname(s));
goto error;
}
if (s->s_bdev && s->s_bdev->bd_inode
&& i_size_read(s->s_bdev->bd_inode) <
sb_block_count(rs) * sb_blocksize(rs)) {
- SWARN(silent, s,
- "Filesystem on %s cannot be mounted because it is bigger than the device",
- reiserfs_bdevname(s));
- SWARN(silent, s,
- "You may need to run fsck or increase size of your LVM partition");
- SWARN(silent, s,
- "Or may be you forgot to reboot after fdisk when it told you to");
+ SWARN(silent, s, "", "Filesystem cannot be "
+ "mounted because it is bigger than the device");
+ SWARN(silent, s, "", "You may need to run fsck "
+ "or increase size of your LVM partition");
+ SWARN(silent, s, "", "Or may be you forgot to "
+ "reboot after fdisk when it told you to");
goto error;
}
sbi->s_mount_state = SB_REISERFS_STATE(s);
sbi->s_mount_state = REISERFS_VALID_FS;
- if (old_format ? read_old_bitmaps(s) : read_bitmaps(s)) {
- SWARN(silent, s,
- "jmacd-8: reiserfs_fill_super: unable to read bitmap");
+ if ((errval = reiserfs_init_bitmap_cache(s))) {
+ SWARN(silent, s, "jmacd-8", "unable to read bitmap");
goto error;
}
+ errval = -EINVAL;
#ifdef CONFIG_REISERFS_CHECK
- SWARN(silent, s, "CONFIG_REISERFS_CHECK is set ON");
- SWARN(silent, s, "- it is slow mode for debugging.");
+ SWARN(silent, s, "", "CONFIG_REISERFS_CHECK is set ON");
+ SWARN(silent, s, "", "- it is slow mode for debugging.");
#endif
/* make data=ordered the default */
}
// set_device_ro(s->s_dev, 1) ;
if (journal_init(s, jdev_name, old_format, commit_max_age)) {
- SWARN(silent, s,
- "sh-2022: reiserfs_fill_super: unable to initialize journal space");
+ SWARN(silent, s, "sh-2022",
+ "unable to initialize journal space");
goto error;
} else {
jinit_done = 1; /* once this is set, journal_release must be called
*/
}
if (reread_meta_blocks(s)) {
- SWARN(silent, s,
- "jmacd-9: reiserfs_fill_super: unable to reread meta blocks after journal init");
+ SWARN(silent, s, "jmacd-9",
+ "unable to reread meta blocks after journal init");
goto error;
}
goto error;
if (bdev_read_only(s->s_bdev) && !(s->s_flags & MS_RDONLY)) {
- SWARN(silent, s,
- "clm-7000: Detected readonly device, marking FS readonly");
+ SWARN(silent, s, "clm-7000",
+ "Detected readonly device, marking FS readonly");
s->s_flags |= MS_RDONLY;
}
args.objectid = REISERFS_ROOT_OBJECTID;
iget5_locked(s, REISERFS_ROOT_OBJECTID, reiserfs_find_actor,
reiserfs_init_locked_inode, (void *)(&args));
if (!root_inode) {
- SWARN(silent, s,
- "jmacd-10: reiserfs_fill_super: get root inode failed");
+ SWARN(silent, s, "jmacd-10", "get root inode failed");
goto error;
}
if (is_reiserfs_3_5(rs)
|| (is_reiserfs_jr(rs) && SB_VERSION(s) == REISERFS_VERSION_1))
set_bit(REISERFS_3_5, &(sbi->s_properties));
+ else if (old_format)
+ set_bit(REISERFS_OLD_FORMAT, &(sbi->s_properties));
else
set_bit(REISERFS_3_6, &(sbi->s_properties));
set_sb_umount_state(rs, REISERFS_ERROR_FS);
set_sb_fs_state(rs, 0);
+ /* Clear out s_bmap_nr if it would wrap. We can handle this
+ * case, but older revisions can't. This will cause the
+ * file system to fail mount on those older implementations,
+ * avoiding corruption. -jeffm */
+ if (bmap_would_wrap(reiserfs_bmap_count(s)) &&
+ sb_bmap_nr(rs) != 0) {
+ reiserfs_warning(s, "super-2030", "This file system "
+ "claims to use %u bitmap blocks in "
+ "its super block, but requires %u. "
+ "Clearing to zero.", sb_bmap_nr(rs),
+ reiserfs_bmap_count(s));
+
+ set_sb_bmap_nr(rs, 0);
+ }
+
if (old_format_only(s)) {
/* filesystem of format 3.5 either with standard or non-standard
journal */
} else if (!silent) {
reiserfs_info(s, "using 3.5.x disk format\n");
}
- }
+ } else
+ set_sb_mnt_count(rs, sb_mnt_count(rs) + 1);
+
journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB(s));
errval = journal_end(&th, s, 1);
goto error;
}
- if ((errval = reiserfs_xattr_init(s, s->s_flags))) {
+ if ((errval = reiserfs_lookup_privroot(s)) ||
+ (errval = reiserfs_xattr_init(s, s->s_flags))) {
dput(s->s_root);
s->s_root = NULL;
goto error;
reiserfs_info(s, "using 3.5.x disk format\n");
}
- if ((errval = reiserfs_xattr_init(s, s->s_flags))) {
+ if ((errval = reiserfs_lookup_privroot(s)) ||
+ (errval = reiserfs_xattr_init(s, s->s_flags))) {
dput(s->s_root);
s->s_root = NULL;
goto error;
init_waitqueue_head(&(sbi->s_wait));
spin_lock_init(&sbi->bitmap_lock);
+ reiserfs_write_unlock(s);
+
return (0);
- error:
+error:
+ reiserfs_write_unlock(s);
+error_alloc:
if (jinit_done) { /* kill the commit thread, free journal ram */
journal_release_error(NULL, s);
}
- if (SB_DISK_SUPER_BLOCK(s)) {
- for (j = 0; j < SB_BMAP_NR(s); j++) {
- if (SB_AP_BITMAP(s))
- brelse(SB_AP_BITMAP(s)[j].bh);
- }
- vfree(SB_AP_BITMAP(s));
- }
+
+ reiserfs_free_bitmap_cache(s);
if (SB_BUFFER_WITH_SB(s))
brelse(SB_BUFFER_WITH_SB(s));
#ifdef CONFIG_QUOTA
- for (j = 0; j < MAXQUOTAS; j++) {
- kfree(sbi->s_qf_names[j]);
- sbi->s_qf_names[j] = NULL;
+ {
+ int j;
+ for (j = 0; j < MAXQUOTAS; j++)
+ kfree(qf_names[j]);
}
#endif
kfree(sbi);
return errval;
}
-static int reiserfs_statfs(struct super_block *s, struct kstatfs *buf)
+static int reiserfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
- struct reiserfs_super_block *rs = SB_DISK_SUPER_BLOCK(s);
+ struct reiserfs_super_block *rs = SB_DISK_SUPER_BLOCK(dentry->d_sb);
buf->f_namelen = (REISERFS_MAX_NAME(s->s_blocksize));
buf->f_bfree = sb_free_blocks(rs);
buf->f_bavail = buf->f_bfree;
buf->f_blocks = sb_block_count(rs) - sb_bmap_nr(rs) - 1;
- buf->f_bsize = s->s_blocksize;
+ buf->f_bsize = dentry->d_sb->s_blocksize;
/* changed to accommodate gcc folks. */
buf->f_type = REISERFS_SUPER_MAGIC;
+ buf->f_fsid.val[0] = (u32)crc32_le(0, rs->s_uuid, sizeof(rs->s_uuid)/2);
+ buf->f_fsid.val[1] = (u32)crc32_le(0, rs->s_uuid + sizeof(rs->s_uuid)/2,
+ sizeof(rs->s_uuid)/2);
+
return 0;
}
#ifdef CONFIG_QUOTA
-static int reiserfs_dquot_initialize(struct inode *inode, int type)
-{
- struct reiserfs_transaction_handle th;
- int ret, err;
-
- /* We may create quota structure so we need to reserve enough blocks */
- reiserfs_write_lock(inode->i_sb);
- ret =
- journal_begin(&th, inode->i_sb,
- 2 * REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb));
- if (ret)
- goto out;
- ret = dquot_initialize(inode, type);
- err =
- journal_end(&th, inode->i_sb,
- 2 * REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb));
- if (!ret && err)
- ret = err;
- out:
- reiserfs_write_unlock(inode->i_sb);
- return ret;
-}
-
-static int reiserfs_dquot_drop(struct inode *inode)
-{
- struct reiserfs_transaction_handle th;
- int ret, err;
-
- /* We may delete quota structure so we need to reserve enough blocks */
- reiserfs_write_lock(inode->i_sb);
- ret =
- journal_begin(&th, inode->i_sb,
- 2 * REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb));
- if (ret)
- goto out;
- ret = dquot_drop(inode);
- err =
- journal_end(&th, inode->i_sb,
- 2 * REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb));
- if (!ret && err)
- ret = err;
- out:
- reiserfs_write_unlock(inode->i_sb);
- return ret;
-}
-
static int reiserfs_write_dquot(struct dquot *dquot)
{
struct reiserfs_transaction_handle th;
ret =
journal_begin(&th, dquot->dq_sb,
REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_sb));
- if (ret)
+ if (ret) {
+ /* Release dquot anyway to avoid endless cycle in dqput() */
+ dquot_release(dquot);
goto out;
+ }
ret = dquot_release(dquot);
err =
journal_end(&th, dquot->dq_sb,
static int reiserfs_mark_dquot_dirty(struct dquot *dquot)
{
- /* Are we journalling quotas? */
+ /* Are we journaling quotas? */
if (REISERFS_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] ||
REISERFS_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) {
dquot_mark_dquot_dirty(dquot);
* Standard function to be called on quota_on
*/
static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
- char *path)
+ char *name, int remount)
{
int err;
- struct nameidata nd;
+ struct path path;
+ struct inode *inode;
+ struct reiserfs_transaction_handle th;
if (!(REISERFS_SB(sb)->s_mount_opt & (1 << REISERFS_QUOTA)))
return -EINVAL;
- err = path_lookup(path, LOOKUP_FOLLOW, &nd);
+ /* No more checks needed? Path and format_id are bogus anyway... */
+ if (remount)
+ return vfs_quota_on(sb, type, format_id, name, 1);
+ err = kern_path(name, LOOKUP_FOLLOW, &path);
if (err)
return err;
/* Quotafile not on the same filesystem? */
- if (nd.mnt->mnt_sb != sb) {
- path_release(&nd);
- return -EXDEV;
+ if (path.mnt->mnt_sb != sb) {
+ err = -EXDEV;
+ goto out;
}
+ inode = path.dentry->d_inode;
/* We must not pack tails for quota files on reiserfs for quota IO to work */
- if (!REISERFS_I(nd.dentry->d_inode)->i_flags & i_nopack_mask) {
- reiserfs_warning(sb,
- "reiserfs: Quota file must have tail packing disabled.");
- path_release(&nd);
- return -EINVAL;
+ if (!(REISERFS_I(inode)->i_flags & i_nopack_mask)) {
+ err = reiserfs_unpack(inode, NULL);
+ if (err) {
+ reiserfs_warning(sb, "super-6520",
+ "Unpacking tail of quota file failed"
+ " (%d). Cannot turn on quotas.", err);
+ err = -EINVAL;
+ goto out;
+ }
+ mark_inode_dirty(inode);
+ }
+ /* Journaling quota? */
+ if (REISERFS_SB(sb)->s_qf_names[type]) {
+ /* Quotafile not of fs root? */
+ if (path.dentry->d_parent != sb->s_root)
+ reiserfs_warning(sb, "super-6521",
+ "Quota file not on filesystem root. "
+ "Journalled quota will not work.");
}
- /* Not journalling quota? No more tests needed... */
- if (!REISERFS_SB(sb)->s_qf_names[USRQUOTA] &&
- !REISERFS_SB(sb)->s_qf_names[GRPQUOTA]) {
- path_release(&nd);
- return vfs_quota_on(sb, type, format_id, path);
+
+ /*
+ * When we journal data on quota file, we have to flush journal to see
+ * all updates to the file when we bypass pagecache...
+ */
+ if (reiserfs_file_data_log(inode)) {
+ /* Just start temporary transaction and finish it */
+ err = journal_begin(&th, sb, 1);
+ if (err)
+ goto out;
+ err = journal_end_sync(&th, sb, 1);
+ if (err)
+ goto out;
}
- /* Quotafile not of fs root? */
- if (nd.dentry->d_parent->d_inode != sb->s_root->d_inode)
- reiserfs_warning(sb,
- "reiserfs: Quota file not on filesystem root. "
- "Journalled quota will not work.");
- path_release(&nd);
- return vfs_quota_on(sb, type, format_id, path);
+ err = vfs_quota_on_path(sb, type, format_id, &path);
+out:
+ path_put(&path);
+ return err;
}
/* Read data from quotafile - avoid pagecache and such because we cannot afford
size_t towrite = len;
struct buffer_head tmp_bh, *bh;
- mutex_lock(&inode->i_mutex);
+ if (!current->journal_info) {
+ printk(KERN_WARNING "reiserfs: Quota write (off=%Lu, len=%Lu)"
+ " cancelled because transaction is not started.\n",
+ (unsigned long long)off, (unsigned long long)len);
+ return -EIO;
+ }
+ mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
while (towrite > 0) {
tocopy = sb->s_blocksize - offset < towrite ?
sb->s_blocksize - offset : towrite;
data += tocopy;
blk++;
}
- out:
- if (len == towrite)
+out:
+ if (len == towrite) {
+ mutex_unlock(&inode->i_mutex);
return err;
+ }
if (inode->i_size < off + len - towrite)
i_size_write(inode, off + len - towrite);
inode->i_version++;
#endif
-static struct super_block *get_super_block(struct file_system_type *fs_type,
- int flags, const char *dev_name,
- void *data)
+static int get_super_block(struct file_system_type *fs_type,
+ int flags, const char *dev_name,
+ void *data, struct vfsmount *mnt)
{
- return get_sb_bdev(fs_type, flags, dev_name, data, reiserfs_fill_super);
+ return get_sb_bdev(fs_type, flags, dev_name, data, reiserfs_fill_super,
+ mnt);
}
static int __init init_reiserfs_fs(void)
return ret;
}
- if ((ret = reiserfs_xattr_register_handlers()))
- goto failed_reiserfs_xattr_register_handlers;
-
reiserfs_proc_info_global_init();
- reiserfs_proc_register_global("version",
- reiserfs_global_version_in_proc);
ret = register_filesystem(&reiserfs_fs_type);
return 0;
}
- reiserfs_xattr_unregister_handlers();
-
- failed_reiserfs_xattr_register_handlers:
- reiserfs_proc_unregister_global("version");
reiserfs_proc_info_global_done();
destroy_inodecache();
static void __exit exit_reiserfs_fs(void)
{
- reiserfs_xattr_unregister_handlers();
- reiserfs_proc_unregister_global("version");
reiserfs_proc_info_global_done();
unregister_filesystem(&reiserfs_fs_type);
destroy_inodecache();
.owner = THIS_MODULE,
.name = "reiserfs",
.get_sb = get_super_block,
- .kill_sb = kill_block_super,
+ .kill_sb = reiserfs_kill_sb,
.fs_flags = FS_REQUIRES_DEV,
};
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff