#include "xfs_vfsops.h"
-int
+int __init
xfs_init(void)
{
- extern kmem_zone_t *xfs_bmap_free_item_zone;
- extern kmem_zone_t *xfs_btree_cur_zone;
- extern kmem_zone_t *xfs_trans_zone;
- extern kmem_zone_t *xfs_buf_item_zone;
- extern kmem_zone_t *xfs_dabuf_zone;
#ifdef XFS_DABUF_DEBUG
- extern lock_t xfs_dabuf_global_lock;
- spinlock_init(&xfs_dabuf_global_lock, "xfsda");
+ extern spinlock_t xfs_dabuf_global_lock;
+ spin_lock_init(&xfs_dabuf_global_lock);
#endif
/*
return 0;
}
-void
+void __exit
xfs_cleanup(void)
{
- extern kmem_zone_t *xfs_bmap_free_item_zone;
- extern kmem_zone_t *xfs_btree_cur_zone;
extern kmem_zone_t *xfs_inode_zone;
- extern kmem_zone_t *xfs_trans_zone;
- extern kmem_zone_t *xfs_da_state_zone;
- extern kmem_zone_t *xfs_dabuf_zone;
extern kmem_zone_t *xfs_efd_zone;
extern kmem_zone_t *xfs_efi_zone;
- extern kmem_zone_t *xfs_buf_item_zone;
extern kmem_zone_t *xfs_icluster_zone;
xfs_cleanup_procfs();
*/
STATIC int
xfs_start_flags(
- struct bhv_vfs *vfs,
struct xfs_mount_args *ap,
struct xfs_mount *mp)
{
mp->m_readio_log = mp->m_writeio_log = ap->iosizelog;
}
- if (ap->flags & XFSMNT_IDELETE)
- mp->m_flags |= XFS_MOUNT_IDELETE;
+ if (ap->flags & XFSMNT_IKEEP)
+ mp->m_flags |= XFS_MOUNT_IKEEP;
if (ap->flags & XFSMNT_DIRSYNC)
mp->m_flags |= XFS_MOUNT_DIRSYNC;
if (ap->flags & XFSMNT_ATTR2)
* no recovery flag requires a read-only mount
*/
if (ap->flags & XFSMNT_NORECOVERY) {
- if (!(vfs->vfs_flag & VFS_RDONLY)) {
+ if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {
cmn_err(CE_WARN,
"XFS: tried to mount a FS read-write without recovery!");
return XFS_ERROR(EINVAL);
mp->m_flags |= XFS_MOUNT_FILESTREAMS;
if (ap->flags & XFSMNT_DMAPI)
- vfs->vfs_flag |= VFS_DMI;
+ mp->m_flags |= XFS_MOUNT_DMAPI;
return 0;
}
*/
STATIC int
xfs_finish_flags(
- struct bhv_vfs *vfs,
struct xfs_mount_args *ap,
struct xfs_mount *mp)
{
- int ronly = (vfs->vfs_flag & VFS_RDONLY);
+ int ronly = (mp->m_flags & XFS_MOUNT_RDONLY);
/* Fail a mount where the logbuf is smaller then the log stripe */
- if (XFS_SB_VERSION_HASLOGV2(&mp->m_sb)) {
+ if (xfs_sb_version_haslogv2(&mp->m_sb)) {
if ((ap->logbufsize <= 0) &&
(mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE)) {
mp->m_logbsize = mp->m_sb.sb_logsunit;
}
}
- if (XFS_SB_VERSION_HASATTR2(&mp->m_sb)) {
+ if (xfs_sb_version_hasattr2(&mp->m_sb))
mp->m_flags |= XFS_MOUNT_ATTR2;
- }
/*
* prohibit r/w mounts of read-only filesystems
* check for shared mount.
*/
if (ap->flags & XFSMNT_SHARED) {
- if (!XFS_SB_VERSION_HASSHARED(&mp->m_sb))
+ if (!xfs_sb_version_hasshared(&mp->m_sb))
return XFS_ERROR(EINVAL);
/*
struct xfs_mount_args *args,
cred_t *credp)
{
- struct bhv_vfs *vfsp = XFS_MTOVFS(mp);
- struct bhv_desc *p;
struct block_device *ddev, *logdev, *rtdev;
int flags = 0, error;
- ddev = vfsp->vfs_super->s_bdev;
+ ddev = mp->m_super->s_bdev;
logdev = rtdev = NULL;
error = xfs_dmops_get(mp, args);
if (error)
return error;
- /*
- * Setup xfs_mount function vectors from available behaviors
- */
- p = vfs_bhv_lookup(vfsp, VFS_POSITION_IO);
- mp->m_io_ops = p ? *(xfs_ioops_t *) vfs_bhv_custom(p) : xfs_iocore_xfs;
-
if (args->flags & XFSMNT_QUIET)
flags |= XFS_MFSI_QUIET;
/*
* Setup flags based on mount(2) options and then the superblock
*/
- error = xfs_start_flags(vfsp, args, mp);
+ error = xfs_start_flags(args, mp);
if (error)
goto error1;
error = xfs_readsb(mp, flags);
if (error)
goto error1;
- error = xfs_finish_flags(vfsp, args, mp);
+ error = xfs_finish_flags(args, mp);
if (error)
goto error2;
if (!error && logdev && logdev != ddev) {
unsigned int log_sector_size = BBSIZE;
- if (XFS_SB_VERSION_HASSECTOR(&mp->m_sb))
+ if (xfs_sb_version_hassector(&mp->m_sb))
log_sector_size = mp->m_sb.sb_logsectsize;
error = xfs_setsize_buftarg(mp->m_logdev_targp,
mp->m_sb.sb_blocksize,
if ((error = xfs_filestream_mount(mp)))
goto error2;
- error = XFS_IOINIT(vfsp, args, flags);
+ error = xfs_mountfs(mp, flags);
if (error)
goto error2;
int flags,
cred_t *credp)
{
- bhv_vfs_t *vfsp = XFS_MTOVFS(mp);
xfs_inode_t *rip;
bhv_vnode_t *rvp;
int unmount_event_wanted = 0;
rvp = XFS_ITOV(rip);
#ifdef HAVE_DMAPI
- if (vfsp->vfs_flag & VFS_DMI) {
- error = XFS_SEND_PREUNMOUNT(mp, vfsp,
+ if (mp->m_flags & XFS_MOUNT_DMAPI) {
+ error = XFS_SEND_PREUNMOUNT(mp,
rvp, DM_RIGHT_NULL, rvp, DM_RIGHT_NULL,
NULL, NULL, 0, 0,
(mp->m_dmevmask & (1<<DM_EVENT_PREUNMOUNT))?
/* Note: mp structure must still exist for
* XFS_SEND_UNMOUNT() call.
*/
- XFS_SEND_UNMOUNT(mp, vfsp, error == 0 ? rvp : NULL,
+ XFS_SEND_UNMOUNT(mp, error == 0 ? rvp : NULL,
DM_RIGHT_NULL, 0, error, unmount_event_flags);
}
if (xfs_unmountfs_needed) {
* care of the metadata. New transactions are already blocked, so we need to
* wait for any remaining transactions to drain out before proceding.
*/
-STATIC void
+void
xfs_attr_quiesce(
xfs_mount_t *mp)
{
int *flags,
struct xfs_mount_args *args)
{
- struct bhv_vfs *vfsp = XFS_MTOVFS(mp);
-
if (!(*flags & MS_RDONLY)) { /* rw/ro -> rw */
- if (vfsp->vfs_flag & VFS_RDONLY)
- vfsp->vfs_flag &= ~VFS_RDONLY;
+ if (mp->m_flags & XFS_MOUNT_RDONLY)
+ mp->m_flags &= ~XFS_MOUNT_RDONLY;
if (args->flags & XFSMNT_BARRIER) {
mp->m_flags |= XFS_MOUNT_BARRIER;
xfs_mountfs_check_barriers(mp);
} else {
mp->m_flags &= ~XFS_MOUNT_BARRIER;
}
- } else if (!(vfsp->vfs_flag & VFS_RDONLY)) { /* rw -> ro */
+ } else if (!(mp->m_flags & XFS_MOUNT_RDONLY)) { /* rw -> ro */
xfs_filestream_flush(mp);
- bhv_vfs_sync(vfsp, SYNC_DATA_QUIESCE, NULL);
+ xfs_sync(mp, SYNC_DATA_QUIESCE);
xfs_attr_quiesce(mp);
- vfsp->vfs_flag |= VFS_RDONLY;
+ mp->m_flags |= XFS_MOUNT_RDONLY;
}
return 0;
}
}
/*
- * xfs_root extracts the root vnode from a vfs.
- *
- * vfsp -- the vfs struct for the desired file system
- * vpp -- address of the caller's vnode pointer which should be
- * set to the desired fs root vnode
- */
-int
-xfs_root(
- xfs_mount_t *mp,
- bhv_vnode_t **vpp)
-{
- bhv_vnode_t *vp;
-
- vp = XFS_ITOV(mp->m_rootip);
- VN_HOLD(vp);
- *vpp = vp;
- return 0;
-}
-
-/*
- * xfs_statvfs
- *
- * Fill in the statvfs structure for the given file system. We use
- * the superblock lock in the mount structure to ensure a consistent
- * snapshot of the counters returned.
- */
-int
-xfs_statvfs(
- xfs_mount_t *mp,
- bhv_statvfs_t *statp,
- bhv_vnode_t *vp)
-{
- __uint64_t fakeinos;
- xfs_extlen_t lsize;
- xfs_sb_t *sbp;
- unsigned long s;
-
- sbp = &(mp->m_sb);
-
- statp->f_type = XFS_SB_MAGIC;
-
- xfs_icsb_sync_counters_flags(mp, XFS_ICSB_LAZY_COUNT);
- s = XFS_SB_LOCK(mp);
- statp->f_bsize = sbp->sb_blocksize;
- lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0;
- statp->f_blocks = sbp->sb_dblocks - lsize;
- statp->f_bfree = statp->f_bavail =
- sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
- fakeinos = statp->f_bfree << sbp->sb_inopblog;
-#if XFS_BIG_INUMS
- fakeinos += mp->m_inoadd;
-#endif
- statp->f_files =
- MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER);
- if (mp->m_maxicount)
-#if XFS_BIG_INUMS
- if (!mp->m_inoadd)
-#endif
- statp->f_files = min_t(typeof(statp->f_files),
- statp->f_files,
- mp->m_maxicount);
- statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree);
- XFS_SB_UNLOCK(mp, s);
-
- xfs_statvfs_fsid(statp, mp);
- statp->f_namelen = MAXNAMELEN - 1;
-
- if (vp)
- XFS_QM_DQSTATVFS(xfs_vtoi(vp), statp);
- return 0;
-}
-
-
-/*
* xfs_sync flushes any pending I/O to file system vfsp.
*
* This routine is called by vfs_sync() to make sure that things make it
int *bypassed)
{
xfs_inode_t *ip = NULL;
- xfs_inode_t *ip_next;
- xfs_buf_t *bp;
bhv_vnode_t *vp = NULL;
int error;
int last_error;
boolean_t mount_locked;
boolean_t vnode_refed;
int preempt;
- xfs_dinode_t *dip;
xfs_iptr_t *ipointer;
#ifdef DEBUG
boolean_t ipointer_in = B_FALSE;
#define XFS_PREEMPT_MASK 0x7f
+ ASSERT(!(flags & SYNC_BDFLUSH));
+
if (bypassed)
*bypassed = 0;
- if (XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY)
+ if (mp->m_flags & XFS_MOUNT_RDONLY)
return 0;
error = 0;
last_error = 0;
ipointer = (xfs_iptr_t *)kmem_zalloc(sizeof(xfs_iptr_t), KM_SLEEP);
fflag = XFS_B_ASYNC; /* default is don't wait */
- if (flags & (SYNC_BDFLUSH | SYNC_DELWRI))
+ if (flags & SYNC_DELWRI)
fflag = XFS_B_DELWRI;
if (flags & SYNC_WAIT)
fflag = 0; /* synchronous overrides all */
}
/*
- * If this is just vfs_sync() or pflushd() calling
- * then we can skip inodes for which it looks like
- * there is nothing to do. Since we don't have the
- * inode locked this is racy, but these are periodic
- * calls so it doesn't matter. For the others we want
- * to know for sure, so we at least try to lock them.
- */
- if (flags & SYNC_BDFLUSH) {
- if (((ip->i_itemp == NULL) ||
- !(ip->i_itemp->ili_format.ilf_fields &
- XFS_ILOG_ALL)) &&
- (ip->i_update_core == 0)) {
- ip = ip->i_mnext;
- continue;
- }
- }
-
- /*
* Try to lock without sleeping. We're out of order with
* the inode list lock here, so if we fail we need to drop
* the mount lock and try again. If we're called from
* it.
*/
if (xfs_ilock_nowait(ip, lock_flags) == 0) {
- if ((flags & SYNC_BDFLUSH) || (vp == NULL)) {
+ if (vp == NULL) {
ip = ip->i_mnext;
continue;
}
xfs_ilock(ip, XFS_ILOCK_SHARED);
}
- if (flags & SYNC_BDFLUSH) {
- if ((flags & SYNC_ATTR) &&
- ((ip->i_update_core) ||
- ((ip->i_itemp != NULL) &&
- (ip->i_itemp->ili_format.ilf_fields != 0)))) {
-
- /* Insert marker and drop lock if not already
- * done.
- */
- if (mount_locked) {
- IPOINTER_INSERT(ip, mp);
- }
-
- /*
- * We don't want the periodic flushing of the
- * inodes by vfs_sync() to interfere with
- * I/O to the file, especially read I/O
- * where it is only the access time stamp
- * that is being flushed out. To prevent
- * long periods where we have both inode
- * locks held shared here while reading the
- * inode's buffer in from disk, we drop the
- * inode lock while reading in the inode
- * buffer. We have to release the buffer
- * and reacquire the inode lock so that they
- * are acquired in the proper order (inode
- * locks first). The buffer will go at the
- * end of the lru chain, though, so we can
- * expect it to still be there when we go
- * for it again in xfs_iflush().
- */
- if ((xfs_ipincount(ip) == 0) &&
- xfs_iflock_nowait(ip)) {
-
- xfs_ifunlock(ip);
- xfs_iunlock(ip, XFS_ILOCK_SHARED);
-
- error = xfs_itobp(mp, NULL, ip,
- &dip, &bp, 0, 0);
- if (!error) {
- xfs_buf_relse(bp);
- } else {
- /* Bailing out, remove the
- * marker and free it.
- */
- XFS_MOUNT_ILOCK(mp);
- IPOINTER_REMOVE(ip, mp);
- XFS_MOUNT_IUNLOCK(mp);
-
- ASSERT(!(lock_flags &
- XFS_IOLOCK_SHARED));
-
- kmem_free(ipointer,
- sizeof(xfs_iptr_t));
- return (0);
- }
-
- /*
- * Since we dropped the inode lock,
- * the inode may have been reclaimed.
- * Therefore, we reacquire the mount
- * lock and check to see if we were the
- * inode reclaimed. If this happened
- * then the ipointer marker will no
- * longer point back at us. In this
- * case, move ip along to the inode
- * after the marker, remove the marker
- * and continue.
- */
- XFS_MOUNT_ILOCK(mp);
- mount_locked = B_TRUE;
-
- if (ip != ipointer->ip_mprev) {
- IPOINTER_REMOVE(ip, mp);
-
- ASSERT(!vnode_refed);
- ASSERT(!(lock_flags &
- XFS_IOLOCK_SHARED));
- continue;
- }
-
- ASSERT(ip->i_mount == mp);
-
- if (xfs_ilock_nowait(ip,
- XFS_ILOCK_SHARED) == 0) {
- ASSERT(ip->i_mount == mp);
- /*
- * We failed to reacquire
- * the inode lock without
- * sleeping, so just skip
- * the inode for now. We
- * clear the ILOCK bit from
- * the lock_flags so that we
- * won't try to drop a lock
- * we don't hold below.
- */
- lock_flags &= ~XFS_ILOCK_SHARED;
- IPOINTER_REMOVE(ip_next, mp);
- } else if ((xfs_ipincount(ip) == 0) &&
- xfs_iflock_nowait(ip)) {
- ASSERT(ip->i_mount == mp);
- /*
- * Since this is vfs_sync()
- * calling we only flush the
- * inode out if we can lock
- * it without sleeping and
- * it is not pinned. Drop
- * the mount lock here so
- * that we don't hold it for
- * too long. We already have
- * a marker in the list here.
- */
- XFS_MOUNT_IUNLOCK(mp);
- mount_locked = B_FALSE;
- error = xfs_iflush(ip,
- XFS_IFLUSH_DELWRI);
- } else {
- ASSERT(ip->i_mount == mp);
- IPOINTER_REMOVE(ip_next, mp);
- }
- }
-
- }
+ if ((flags & SYNC_ATTR) &&
+ (ip->i_update_core ||
+ (ip->i_itemp && ip->i_itemp->ili_format.ilf_fields))) {
+ if (mount_locked)
+ IPOINTER_INSERT(ip, mp);
- } else {
- if ((flags & SYNC_ATTR) &&
- ((ip->i_update_core) ||
- ((ip->i_itemp != NULL) &&
- (ip->i_itemp->ili_format.ilf_fields != 0)))) {
- if (mount_locked) {
- IPOINTER_INSERT(ip, mp);
- }
+ if (flags & SYNC_WAIT) {
+ xfs_iflock(ip);
+ error = xfs_iflush(ip, XFS_IFLUSH_SYNC);
- if (flags & SYNC_WAIT) {
- xfs_iflock(ip);
- error = xfs_iflush(ip,
- XFS_IFLUSH_SYNC);
- } else {
- /*
- * If we can't acquire the flush
- * lock, then the inode is already
- * being flushed so don't bother
- * waiting. If we can lock it then
- * do a delwri flush so we can
- * combine multiple inode flushes
- * in each disk write.
- */
- if (xfs_iflock_nowait(ip)) {
- error = xfs_iflush(ip,
- XFS_IFLUSH_DELWRI);
- }
- else if (bypassed)
- (*bypassed)++;
- }
+ /*
+ * If we can't acquire the flush lock, then the inode
+ * is already being flushed so don't bother waiting.
+ *
+ * If we can lock it then do a delwri flush so we can
+ * combine multiple inode flushes in each disk write.
+ */
+ } else if (xfs_iflock_nowait(ip)) {
+ error = xfs_iflush(ip, XFS_IFLUSH_DELWRI);
+ } else if (bypassed) {
+ (*bypassed)++;
}
}
return XFS_ERROR(last_error);
}
-
-/*
- * xfs_vget - called by DMAPI and NFSD to get vnode from file handle
- */
-int
-xfs_vget(
- xfs_mount_t *mp,
- bhv_vnode_t **vpp,
- fid_t *fidp)
-{
- xfs_fid_t *xfid = (struct xfs_fid *)fidp;
- xfs_inode_t *ip;
- int error;
- xfs_ino_t ino;
- unsigned int igen;
-
- /*
- * Invalid. Since handles can be created in user space and passed in
- * via gethandle(), this is not cause for a panic.
- */
- if (xfid->xfs_fid_len != sizeof(*xfid) - sizeof(xfid->xfs_fid_len))
- return XFS_ERROR(EINVAL);
-
- ino = xfid->xfs_fid_ino;
- igen = xfid->xfs_fid_gen;
-
- /*
- * NFS can sometimes send requests for ino 0. Fail them gracefully.
- */
- if (ino == 0)
- return XFS_ERROR(ESTALE);
-
- error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, 0);
- if (error) {
- *vpp = NULL;
- return error;
- }
-
- if (ip == NULL) {
- *vpp = NULL;
- return XFS_ERROR(EIO);
- }
-
- if (ip->i_d.di_mode == 0 || ip->i_d.di_gen != igen) {
- xfs_iput_new(ip, XFS_ILOCK_SHARED);
- *vpp = NULL;
- return XFS_ERROR(ENOENT);
- }
-
- *vpp = XFS_ITOV(ip);
- xfs_iunlock(ip, XFS_ILOCK_SHARED);
- return 0;
-}
-
-
-#define MNTOPT_LOGBUFS "logbufs" /* number of XFS log buffers */
-#define MNTOPT_LOGBSIZE "logbsize" /* size of XFS log buffers */
-#define MNTOPT_LOGDEV "logdev" /* log device */
-#define MNTOPT_RTDEV "rtdev" /* realtime I/O device */
-#define MNTOPT_BIOSIZE "biosize" /* log2 of preferred buffered io size */
-#define MNTOPT_WSYNC "wsync" /* safe-mode nfs compatible mount */
-#define MNTOPT_INO64 "ino64" /* force inodes into 64-bit range */
-#define MNTOPT_NOALIGN "noalign" /* turn off stripe alignment */
-#define MNTOPT_SWALLOC "swalloc" /* turn on stripe width allocation */
-#define MNTOPT_SUNIT "sunit" /* data volume stripe unit */
-#define MNTOPT_SWIDTH "swidth" /* data volume stripe width */
-#define MNTOPT_NOUUID "nouuid" /* ignore filesystem UUID */
-#define MNTOPT_MTPT "mtpt" /* filesystem mount point */
-#define MNTOPT_GRPID "grpid" /* group-ID from parent directory */
-#define MNTOPT_NOGRPID "nogrpid" /* group-ID from current process */
-#define MNTOPT_BSDGROUPS "bsdgroups" /* group-ID from parent directory */
-#define MNTOPT_SYSVGROUPS "sysvgroups" /* group-ID from current process */
-#define MNTOPT_ALLOCSIZE "allocsize" /* preferred allocation size */
-#define MNTOPT_NORECOVERY "norecovery" /* don't run XFS recovery */
-#define MNTOPT_BARRIER "barrier" /* use writer barriers for log write and
- * unwritten extent conversion */
-#define MNTOPT_NOBARRIER "nobarrier" /* .. disable */
-#define MNTOPT_OSYNCISOSYNC "osyncisosync" /* o_sync is REALLY o_sync */
-#define MNTOPT_64BITINODE "inode64" /* inodes can be allocated anywhere */
-#define MNTOPT_IKEEP "ikeep" /* do not free empty inode clusters */
-#define MNTOPT_NOIKEEP "noikeep" /* free empty inode clusters */
-#define MNTOPT_LARGEIO "largeio" /* report large I/O sizes in stat() */
-#define MNTOPT_NOLARGEIO "nolargeio" /* do not report large I/O sizes
- * in stat(). */
-#define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */
-#define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */
-#define MNTOPT_FILESTREAM "filestreams" /* use filestreams allocator */
-#define MNTOPT_QUOTA "quota" /* disk quotas (user) */
-#define MNTOPT_NOQUOTA "noquota" /* no quotas */
-#define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */
-#define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */
-#define MNTOPT_PRJQUOTA "prjquota" /* project quota enabled */
-#define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */
-#define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */
-#define MNTOPT_PQUOTA "pquota" /* project quota (IRIX variant) */
-#define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */
-#define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */
-#define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */
-#define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */
-#define MNTOPT_DMAPI "dmapi" /* DMI enabled (DMAPI / XDSM) */
-#define MNTOPT_XDSM "xdsm" /* DMI enabled (DMAPI / XDSM) */
-#define MNTOPT_DMI "dmi" /* DMI enabled (DMAPI / XDSM) */
-
-STATIC unsigned long
-suffix_strtoul(char *s, char **endp, unsigned int base)
-{
- int last, shift_left_factor = 0;
- char *value = s;
-
- last = strlen(value) - 1;
- if (value[last] == 'K' || value[last] == 'k') {
- shift_left_factor = 10;
- value[last] = '\0';
- }
- if (value[last] == 'M' || value[last] == 'm') {
- shift_left_factor = 20;
- value[last] = '\0';
- }
- if (value[last] == 'G' || value[last] == 'g') {
- shift_left_factor = 30;
- value[last] = '\0';
- }
-
- return simple_strtoul((const char *)s, endp, base) << shift_left_factor;
-}
-
-int
-xfs_parseargs(
- struct xfs_mount *mp,
- char *options,
- struct xfs_mount_args *args,
- int update)
-{
- bhv_vfs_t *vfsp = XFS_MTOVFS(mp);
- char *this_char, *value, *eov;
- int dsunit, dswidth, vol_dsunit, vol_dswidth;
- int iosize;
-
- /*
- * Applications using DMI filesystems often expect the
- * inode generation number to be monotonically increasing.
- * If we delete inode chunks we break this assumption, so
- * keep unused inode chunks on disk for DMI filesystems
- * until we come up with a better solution.
- * Note that if "ikeep" or "noikeep" mount options are
- * supplied, then they are honored.
- */
- if (!(args->flags & XFSMNT_DMAPI))
- args->flags |= XFSMNT_IDELETE;
-
- args->flags |= XFSMNT_BARRIER;
- args->flags2 |= XFSMNT2_COMPAT_IOSIZE;
-
- if (!options)
- goto done;
-
- iosize = dsunit = dswidth = vol_dsunit = vol_dswidth = 0;
-
- while ((this_char = strsep(&options, ",")) != NULL) {
- if (!*this_char)
- continue;
- if ((value = strchr(this_char, '=')) != NULL)
- *value++ = 0;
-
- if (!strcmp(this_char, MNTOPT_LOGBUFS)) {
- if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
- this_char);
- return EINVAL;
- }
- args->logbufs = simple_strtoul(value, &eov, 10);
- } else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) {
- if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
- this_char);
- return EINVAL;
- }
- args->logbufsize = suffix_strtoul(value, &eov, 10);
- } else if (!strcmp(this_char, MNTOPT_LOGDEV)) {
- if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
- this_char);
- return EINVAL;
- }
- strncpy(args->logname, value, MAXNAMELEN);
- } else if (!strcmp(this_char, MNTOPT_MTPT)) {
- if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
- this_char);
- return EINVAL;
- }
- strncpy(args->mtpt, value, MAXNAMELEN);
- } else if (!strcmp(this_char, MNTOPT_RTDEV)) {
- if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
- this_char);
- return EINVAL;
- }
- strncpy(args->rtname, value, MAXNAMELEN);
- } else if (!strcmp(this_char, MNTOPT_BIOSIZE)) {
- if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
- this_char);
- return EINVAL;
- }
- iosize = simple_strtoul(value, &eov, 10);
- args->flags |= XFSMNT_IOSIZE;
- args->iosizelog = (uint8_t) iosize;
- } else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) {
- if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
- this_char);
- return EINVAL;
- }
- iosize = suffix_strtoul(value, &eov, 10);
- args->flags |= XFSMNT_IOSIZE;
- args->iosizelog = ffs(iosize) - 1;
- } else if (!strcmp(this_char, MNTOPT_GRPID) ||
- !strcmp(this_char, MNTOPT_BSDGROUPS)) {
- vfsp->vfs_flag |= VFS_GRPID;
- } else if (!strcmp(this_char, MNTOPT_NOGRPID) ||
- !strcmp(this_char, MNTOPT_SYSVGROUPS)) {
- vfsp->vfs_flag &= ~VFS_GRPID;
- } else if (!strcmp(this_char, MNTOPT_WSYNC)) {
- args->flags |= XFSMNT_WSYNC;
- } else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) {
- args->flags |= XFSMNT_OSYNCISOSYNC;
- } else if (!strcmp(this_char, MNTOPT_NORECOVERY)) {
- args->flags |= XFSMNT_NORECOVERY;
- } else if (!strcmp(this_char, MNTOPT_INO64)) {
- args->flags |= XFSMNT_INO64;
-#if !XFS_BIG_INUMS
- cmn_err(CE_WARN,
- "XFS: %s option not allowed on this system",
- this_char);
- return EINVAL;
-#endif
- } else if (!strcmp(this_char, MNTOPT_NOALIGN)) {
- args->flags |= XFSMNT_NOALIGN;
- } else if (!strcmp(this_char, MNTOPT_SWALLOC)) {
- args->flags |= XFSMNT_SWALLOC;
- } else if (!strcmp(this_char, MNTOPT_SUNIT)) {
- if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
- this_char);
- return EINVAL;
- }
- dsunit = simple_strtoul(value, &eov, 10);
- } else if (!strcmp(this_char, MNTOPT_SWIDTH)) {
- if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
- this_char);
- return EINVAL;
- }
- dswidth = simple_strtoul(value, &eov, 10);
- } else if (!strcmp(this_char, MNTOPT_64BITINODE)) {
- args->flags &= ~XFSMNT_32BITINODES;
-#if !XFS_BIG_INUMS
- cmn_err(CE_WARN,
- "XFS: %s option not allowed on this system",
- this_char);
- return EINVAL;
-#endif
- } else if (!strcmp(this_char, MNTOPT_NOUUID)) {
- args->flags |= XFSMNT_NOUUID;
- } else if (!strcmp(this_char, MNTOPT_BARRIER)) {
- args->flags |= XFSMNT_BARRIER;
- } else if (!strcmp(this_char, MNTOPT_NOBARRIER)) {
- args->flags &= ~XFSMNT_BARRIER;
- } else if (!strcmp(this_char, MNTOPT_IKEEP)) {
- args->flags &= ~XFSMNT_IDELETE;
- } else if (!strcmp(this_char, MNTOPT_NOIKEEP)) {
- args->flags |= XFSMNT_IDELETE;
- } else if (!strcmp(this_char, MNTOPT_LARGEIO)) {
- args->flags2 &= ~XFSMNT2_COMPAT_IOSIZE;
- } else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) {
- args->flags2 |= XFSMNT2_COMPAT_IOSIZE;
- } else if (!strcmp(this_char, MNTOPT_ATTR2)) {
- args->flags |= XFSMNT_ATTR2;
- } else if (!strcmp(this_char, MNTOPT_NOATTR2)) {
- args->flags &= ~XFSMNT_ATTR2;
- } else if (!strcmp(this_char, MNTOPT_FILESTREAM)) {
- args->flags2 |= XFSMNT2_FILESTREAMS;
- } else if (!strcmp(this_char, MNTOPT_NOQUOTA)) {
- args->flags &= ~(XFSMNT_UQUOTAENF|XFSMNT_UQUOTA);
- args->flags &= ~(XFSMNT_GQUOTAENF|XFSMNT_GQUOTA);
- } else if (!strcmp(this_char, MNTOPT_QUOTA) ||
- !strcmp(this_char, MNTOPT_UQUOTA) ||
- !strcmp(this_char, MNTOPT_USRQUOTA)) {
- args->flags |= XFSMNT_UQUOTA | XFSMNT_UQUOTAENF;
- } else if (!strcmp(this_char, MNTOPT_QUOTANOENF) ||
- !strcmp(this_char, MNTOPT_UQUOTANOENF)) {
- args->flags |= XFSMNT_UQUOTA;
- args->flags &= ~XFSMNT_UQUOTAENF;
- } else if (!strcmp(this_char, MNTOPT_PQUOTA) ||
- !strcmp(this_char, MNTOPT_PRJQUOTA)) {
- args->flags |= XFSMNT_PQUOTA | XFSMNT_PQUOTAENF;
- } else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) {
- args->flags |= XFSMNT_PQUOTA;
- args->flags &= ~XFSMNT_PQUOTAENF;
- } else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
- !strcmp(this_char, MNTOPT_GRPQUOTA)) {
- args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF;
- } else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
- args->flags |= XFSMNT_GQUOTA;
- args->flags &= ~XFSMNT_GQUOTAENF;
- } else if (!strcmp(this_char, MNTOPT_DMAPI)) {
- args->flags |= XFSMNT_DMAPI;
- } else if (!strcmp(this_char, MNTOPT_XDSM)) {
- args->flags |= XFSMNT_DMAPI;
- } else if (!strcmp(this_char, MNTOPT_DMI)) {
- args->flags |= XFSMNT_DMAPI;
- } else if (!strcmp(this_char, "ihashsize")) {
- cmn_err(CE_WARN,
- "XFS: ihashsize no longer used, option is deprecated.");
- } else if (!strcmp(this_char, "osyncisdsync")) {
- /* no-op, this is now the default */
- cmn_err(CE_WARN,
- "XFS: osyncisdsync is now the default, option is deprecated.");
- } else if (!strcmp(this_char, "irixsgid")) {
- cmn_err(CE_WARN,
- "XFS: irixsgid is now a sysctl(2) variable, option is deprecated.");
- } else {
- cmn_err(CE_WARN,
- "XFS: unknown mount option [%s].", this_char);
- return EINVAL;
- }
- }
-
- if (args->flags & XFSMNT_NORECOVERY) {
- if ((vfsp->vfs_flag & VFS_RDONLY) == 0) {
- cmn_err(CE_WARN,
- "XFS: no-recovery mounts must be read-only.");
- return EINVAL;
- }
- }
-
- if ((args->flags & XFSMNT_NOALIGN) && (dsunit || dswidth)) {
- cmn_err(CE_WARN,
- "XFS: sunit and swidth options incompatible with the noalign option");
- return EINVAL;
- }
-
- if ((args->flags & XFSMNT_GQUOTA) && (args->flags & XFSMNT_PQUOTA)) {
- cmn_err(CE_WARN,
- "XFS: cannot mount with both project and group quota");
- return EINVAL;
- }
-
- if ((args->flags & XFSMNT_DMAPI) && *args->mtpt == '\0') {
- printk("XFS: %s option needs the mount point option as well\n",
- MNTOPT_DMAPI);
- return EINVAL;
- }
-
- if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
- cmn_err(CE_WARN,
- "XFS: sunit and swidth must be specified together");
- return EINVAL;
- }
-
- if (dsunit && (dswidth % dsunit != 0)) {
- cmn_err(CE_WARN,
- "XFS: stripe width (%d) must be a multiple of the stripe unit (%d)",
- dswidth, dsunit);
- return EINVAL;
- }
-
- if ((args->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) {
- if (dsunit) {
- args->sunit = dsunit;
- args->flags |= XFSMNT_RETERR;
- } else {
- args->sunit = vol_dsunit;
- }
- dswidth ? (args->swidth = dswidth) :
- (args->swidth = vol_dswidth);
- } else {
- args->sunit = args->swidth = 0;
- }
-
-done:
- if (args->flags & XFSMNT_32BITINODES)
- vfsp->vfs_flag |= VFS_32BITINODES;
- if (args->flags2)
- args->flags |= XFSMNT_FLAGS2;
- return 0;
-}
-
-int
-xfs_showargs(
- struct xfs_mount *mp,
- struct seq_file *m)
-{
- static struct proc_xfs_info {
- int flag;
- char *str;
- } xfs_info[] = {
- /* the few simple ones we can get from the mount struct */
- { XFS_MOUNT_WSYNC, "," MNTOPT_WSYNC },
- { XFS_MOUNT_INO64, "," MNTOPT_INO64 },
- { XFS_MOUNT_NOALIGN, "," MNTOPT_NOALIGN },
- { XFS_MOUNT_SWALLOC, "," MNTOPT_SWALLOC },
- { XFS_MOUNT_NOUUID, "," MNTOPT_NOUUID },
- { XFS_MOUNT_NORECOVERY, "," MNTOPT_NORECOVERY },
- { XFS_MOUNT_OSYNCISOSYNC, "," MNTOPT_OSYNCISOSYNC },
- { 0, NULL }
- };
- struct proc_xfs_info *xfs_infop;
- struct bhv_vfs *vfsp = XFS_MTOVFS(mp);
-
- for (xfs_infop = xfs_info; xfs_infop->flag; xfs_infop++) {
- if (mp->m_flags & xfs_infop->flag)
- seq_puts(m, xfs_infop->str);
- }
-
- if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)
- seq_printf(m, "," MNTOPT_ALLOCSIZE "=%dk",
- (int)(1 << mp->m_writeio_log) >> 10);
-
- if (mp->m_logbufs > 0)
- seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs);
- if (mp->m_logbsize > 0)
- seq_printf(m, "," MNTOPT_LOGBSIZE "=%dk", mp->m_logbsize >> 10);
-
- if (mp->m_logname)
- seq_printf(m, "," MNTOPT_LOGDEV "=%s", mp->m_logname);
- if (mp->m_rtname)
- seq_printf(m, "," MNTOPT_RTDEV "=%s", mp->m_rtname);
-
- if (mp->m_dalign > 0)
- seq_printf(m, "," MNTOPT_SUNIT "=%d",
- (int)XFS_FSB_TO_BB(mp, mp->m_dalign));
- if (mp->m_swidth > 0)
- seq_printf(m, "," MNTOPT_SWIDTH "=%d",
- (int)XFS_FSB_TO_BB(mp, mp->m_swidth));
-
- if (!(mp->m_flags & XFS_MOUNT_IDELETE))
- seq_printf(m, "," MNTOPT_IKEEP);
- if (!(mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE))
- seq_printf(m, "," MNTOPT_LARGEIO);
-
- if (!(vfsp->vfs_flag & VFS_32BITINODES))
- seq_printf(m, "," MNTOPT_64BITINODE);
- if (vfsp->vfs_flag & VFS_GRPID)
- seq_printf(m, "," MNTOPT_GRPID);
-
- if (mp->m_qflags & XFS_UQUOTA_ACCT) {
- if (mp->m_qflags & XFS_UQUOTA_ENFD)
- seq_puts(m, "," MNTOPT_USRQUOTA);
- else
- seq_puts(m, "," MNTOPT_UQUOTANOENF);
- }
-
- if (mp->m_qflags & XFS_PQUOTA_ACCT) {
- if (mp->m_qflags & XFS_OQUOTA_ENFD)
- seq_puts(m, "," MNTOPT_PRJQUOTA);
- else
- seq_puts(m, "," MNTOPT_PQUOTANOENF);
- }
-
- if (mp->m_qflags & XFS_GQUOTA_ACCT) {
- if (mp->m_qflags & XFS_OQUOTA_ENFD)
- seq_puts(m, "," MNTOPT_GRPQUOTA);
- else
- seq_puts(m, "," MNTOPT_GQUOTANOENF);
- }
-
- if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT))
- seq_puts(m, "," MNTOPT_NOQUOTA);
-
- if (vfsp->vfs_flag & VFS_DMI)
- seq_puts(m, "," MNTOPT_DMAPI);
- return 0;
-}
-
-/*
- * Second stage of a freeze. The data is already frozen so we only
- * need to take care of themetadata. Once that's done write a dummy
- * record to dirty the log in case of a crash while frozen.
- */
-STATIC void
-xfs_freeze(
- xfs_mount_t *mp)
-{
- xfs_attr_quiesce(mp);
- xfs_fs_log_dummy(mp);
-}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff