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path: root/fs/xfs/linux-2.6/xfs_super.c
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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_super.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_super.c293
1 files changed, 128 insertions, 165 deletions
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 9731898083ae..b38e58d02299 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -173,6 +173,15 @@ xfs_parseargs(
__uint8_t iosizelog = 0;
/*
+ * set up the mount name first so all the errors will refer to the
+ * correct device.
+ */
+ mp->m_fsname = kstrndup(sb->s_id, MAXNAMELEN, GFP_KERNEL);
+ if (!mp->m_fsname)
+ return ENOMEM;
+ mp->m_fsname_len = strlen(mp->m_fsname) + 1;
+
+ /*
* Copy binary VFS mount flags we are interested in.
*/
if (sb->s_flags & MS_RDONLY)
@@ -189,6 +198,7 @@ xfs_parseargs(
mp->m_flags |= XFS_MOUNT_BARRIER;
mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
+ mp->m_flags |= XFS_MOUNT_DELAYLOG;
/*
* These can be overridden by the mount option parsing.
@@ -207,24 +217,21 @@ xfs_parseargs(
if (!strcmp(this_char, MNTOPT_LOGBUFS)) {
if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
+ xfs_warn(mp, "%s option requires an argument",
this_char);
return EINVAL;
}
mp->m_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",
+ xfs_warn(mp, "%s option requires an argument",
this_char);
return EINVAL;
}
mp->m_logbsize = 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",
+ xfs_warn(mp, "%s option requires an argument",
this_char);
return EINVAL;
}
@@ -232,14 +239,12 @@ xfs_parseargs(
if (!mp->m_logname)
return ENOMEM;
} else if (!strcmp(this_char, MNTOPT_MTPT)) {
- cmn_err(CE_WARN,
- "XFS: %s option not allowed on this system",
+ xfs_warn(mp, "%s option not allowed on this system",
this_char);
return EINVAL;
} else if (!strcmp(this_char, MNTOPT_RTDEV)) {
if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
+ xfs_warn(mp, "%s option requires an argument",
this_char);
return EINVAL;
}
@@ -248,8 +253,7 @@ xfs_parseargs(
return ENOMEM;
} else if (!strcmp(this_char, MNTOPT_BIOSIZE)) {
if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
+ xfs_warn(mp, "%s option requires an argument",
this_char);
return EINVAL;
}
@@ -257,8 +261,7 @@ xfs_parseargs(
iosizelog = ffs(iosize) - 1;
} else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) {
if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
+ xfs_warn(mp, "%s option requires an argument",
this_char);
return EINVAL;
}
@@ -280,16 +283,14 @@ xfs_parseargs(
mp->m_flags |= XFS_MOUNT_SWALLOC;
} else if (!strcmp(this_char, MNTOPT_SUNIT)) {
if (!value || !*value) {
- cmn_err(CE_WARN,
- "XFS: %s option requires an argument",
+ xfs_warn(mp, "%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",
+ xfs_warn(mp, "%s option requires an argument",
this_char);
return EINVAL;
}
@@ -297,8 +298,7 @@ xfs_parseargs(
} else if (!strcmp(this_char, MNTOPT_64BITINODE)) {
mp->m_flags &= ~XFS_MOUNT_SMALL_INUMS;
#if !XFS_BIG_INUMS
- cmn_err(CE_WARN,
- "XFS: %s option not allowed on this system",
+ xfs_warn(mp, "%s option not allowed on this system",
this_char);
return EINVAL;
#endif
@@ -356,20 +356,19 @@ xfs_parseargs(
} else if (!strcmp(this_char, MNTOPT_NODELAYLOG)) {
mp->m_flags &= ~XFS_MOUNT_DELAYLOG;
} else if (!strcmp(this_char, "ihashsize")) {
- cmn_err(CE_WARN,
- "XFS: ihashsize no longer used, option is deprecated.");
+ xfs_warn(mp,
+ "ihashsize no longer used, option is deprecated.");
} else if (!strcmp(this_char, "osyncisdsync")) {
- cmn_err(CE_WARN,
- "XFS: osyncisdsync has no effect, option is deprecated.");
+ xfs_warn(mp,
+ "osyncisdsync has no effect, option is deprecated.");
} else if (!strcmp(this_char, "osyncisosync")) {
- cmn_err(CE_WARN,
- "XFS: osyncisosync has no effect, option is deprecated.");
+ xfs_warn(mp,
+ "osyncisosync has no effect, option is deprecated.");
} else if (!strcmp(this_char, "irixsgid")) {
- cmn_err(CE_WARN,
- "XFS: irixsgid is now a sysctl(2) variable, option is deprecated.");
+ xfs_warn(mp,
+ "irixsgid is now a sysctl(2) variable, option is deprecated.");
} else {
- cmn_err(CE_WARN,
- "XFS: unknown mount option [%s].", this_char);
+ xfs_warn(mp, "unknown mount option [%s].", this_char);
return EINVAL;
}
}
@@ -379,40 +378,37 @@ xfs_parseargs(
*/
if ((mp->m_flags & XFS_MOUNT_NORECOVERY) &&
!(mp->m_flags & XFS_MOUNT_RDONLY)) {
- cmn_err(CE_WARN, "XFS: no-recovery mounts must be read-only.");
+ xfs_warn(mp, "no-recovery mounts must be read-only.");
return EINVAL;
}
if ((mp->m_flags & XFS_MOUNT_NOALIGN) && (dsunit || dswidth)) {
- cmn_err(CE_WARN,
- "XFS: sunit and swidth options incompatible with the noalign option");
+ xfs_warn(mp,
+ "sunit and swidth options incompatible with the noalign option");
return EINVAL;
}
#ifndef CONFIG_XFS_QUOTA
if (XFS_IS_QUOTA_RUNNING(mp)) {
- cmn_err(CE_WARN,
- "XFS: quota support not available in this kernel.");
+ xfs_warn(mp, "quota support not available in this kernel.");
return EINVAL;
}
#endif
if ((mp->m_qflags & (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE)) &&
(mp->m_qflags & (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE))) {
- cmn_err(CE_WARN,
- "XFS: cannot mount with both project and group quota");
+ xfs_warn(mp, "cannot mount with both project and group quota");
return EINVAL;
}
if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
- cmn_err(CE_WARN,
- "XFS: sunit and swidth must be specified together");
+ xfs_warn(mp, "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)",
+ xfs_warn(mp,
+ "stripe width (%d) must be a multiple of the stripe unit (%d)",
dswidth, dsunit);
return EINVAL;
}
@@ -438,8 +434,7 @@ done:
mp->m_logbufs != 0 &&
(mp->m_logbufs < XLOG_MIN_ICLOGS ||
mp->m_logbufs > XLOG_MAX_ICLOGS)) {
- cmn_err(CE_WARN,
- "XFS: invalid logbufs value: %d [not %d-%d]",
+ xfs_warn(mp, "invalid logbufs value: %d [not %d-%d]",
mp->m_logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS);
return XFS_ERROR(EINVAL);
}
@@ -448,22 +443,16 @@ done:
(mp->m_logbsize < XLOG_MIN_RECORD_BSIZE ||
mp->m_logbsize > XLOG_MAX_RECORD_BSIZE ||
!is_power_of_2(mp->m_logbsize))) {
- cmn_err(CE_WARN,
- "XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]",
+ xfs_warn(mp,
+ "invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]",
mp->m_logbsize);
return XFS_ERROR(EINVAL);
}
- mp->m_fsname = kstrndup(sb->s_id, MAXNAMELEN, GFP_KERNEL);
- if (!mp->m_fsname)
- return ENOMEM;
- mp->m_fsname_len = strlen(mp->m_fsname) + 1;
-
if (iosizelog) {
if (iosizelog > XFS_MAX_IO_LOG ||
iosizelog < XFS_MIN_IO_LOG) {
- cmn_err(CE_WARN,
- "XFS: invalid log iosize: %d [not %d-%d]",
+ xfs_warn(mp, "invalid log iosize: %d [not %d-%d]",
iosizelog, XFS_MIN_IO_LOG,
XFS_MAX_IO_LOG);
return XFS_ERROR(EINVAL);
@@ -610,7 +599,7 @@ xfs_blkdev_get(
mp);
if (IS_ERR(*bdevp)) {
error = PTR_ERR(*bdevp);
- printk("XFS: Invalid device [%s], error=%d\n", name, error);
+ xfs_warn(mp, "Invalid device [%s], error=%d\n", name, error);
}
return -error;
@@ -664,23 +653,23 @@ xfs_mountfs_check_barriers(xfs_mount_t *mp)
int error;
if (mp->m_logdev_targp != mp->m_ddev_targp) {
- xfs_fs_cmn_err(CE_NOTE, mp,
+ xfs_notice(mp,
"Disabling barriers, not supported with external log device");
mp->m_flags &= ~XFS_MOUNT_BARRIER;
return;
}
if (xfs_readonly_buftarg(mp->m_ddev_targp)) {
- xfs_fs_cmn_err(CE_NOTE, mp,
- "Disabling barriers, underlying device is readonly");
+ xfs_notice(mp,
+ "Disabling barriers, underlying device is readonly");
mp->m_flags &= ~XFS_MOUNT_BARRIER;
return;
}
error = xfs_barrier_test(mp);
if (error) {
- xfs_fs_cmn_err(CE_NOTE, mp,
- "Disabling barriers, trial barrier write failed");
+ xfs_notice(mp,
+ "Disabling barriers, trial barrier write failed");
mp->m_flags &= ~XFS_MOUNT_BARRIER;
return;
}
@@ -743,8 +732,8 @@ xfs_open_devices(
goto out_close_logdev;
if (rtdev == ddev || rtdev == logdev) {
- cmn_err(CE_WARN,
- "XFS: Cannot mount filesystem with identical rtdev and ddev/logdev.");
+ xfs_warn(mp,
+ "Cannot mount filesystem with identical rtdev and ddev/logdev.");
error = EINVAL;
goto out_close_rtdev;
}
@@ -827,75 +816,6 @@ xfs_setup_devices(
return 0;
}
-/*
- * XFS AIL push thread support
- */
-void
-xfsaild_wakeup(
- struct xfs_ail *ailp,
- xfs_lsn_t threshold_lsn)
-{
- /* only ever move the target forwards */
- if (XFS_LSN_CMP(threshold_lsn, ailp->xa_target) > 0) {
- ailp->xa_target = threshold_lsn;
- wake_up_process(ailp->xa_task);
- }
-}
-
-STATIC int
-xfsaild(
- void *data)
-{
- struct xfs_ail *ailp = data;
- xfs_lsn_t last_pushed_lsn = 0;
- long tout = 0; /* milliseconds */
-
- while (!kthread_should_stop()) {
- /*
- * for short sleeps indicating congestion, don't allow us to
- * get woken early. Otherwise all we do is bang on the AIL lock
- * without making progress.
- */
- if (tout && tout <= 20)
- __set_current_state(TASK_KILLABLE);
- else
- __set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(tout ?
- msecs_to_jiffies(tout) : MAX_SCHEDULE_TIMEOUT);
-
- /* swsusp */
- try_to_freeze();
-
- ASSERT(ailp->xa_mount->m_log);
- if (XFS_FORCED_SHUTDOWN(ailp->xa_mount))
- continue;
-
- tout = xfsaild_push(ailp, &last_pushed_lsn);
- }
-
- return 0;
-} /* xfsaild */
-
-int
-xfsaild_start(
- struct xfs_ail *ailp)
-{
- ailp->xa_target = 0;
- ailp->xa_task = kthread_run(xfsaild, ailp, "xfsaild/%s",
- ailp->xa_mount->m_fsname);
- if (IS_ERR(ailp->xa_task))
- return -PTR_ERR(ailp->xa_task);
- return 0;
-}
-
-void
-xfsaild_stop(
- struct xfs_ail *ailp)
-{
- kthread_stop(ailp->xa_task);
-}
-
-
/* Catch misguided souls that try to use this interface on XFS */
STATIC struct inode *
xfs_fs_alloc_inode(
@@ -1089,7 +1009,7 @@ xfs_fs_write_inode(
error = 0;
goto out_unlock;
}
- error = xfs_iflush(ip, 0);
+ error = xfs_iflush(ip, SYNC_TRYLOCK);
}
out_unlock:
@@ -1202,22 +1122,12 @@ xfs_fs_sync_fs(
return -error;
if (laptop_mode) {
- int prev_sync_seq = mp->m_sync_seq;
-
/*
* The disk must be active because we're syncing.
* We schedule xfssyncd now (now that the disk is
* active) instead of later (when it might not be).
*/
- wake_up_process(mp->m_sync_task);
- /*
- * We have to wait for the sync iteration to complete.
- * If we don't, the disk activity caused by the sync
- * will come after the sync is completed, and that
- * triggers another sync from laptop mode.
- */
- wait_event(mp->m_wait_single_sync_task,
- mp->m_sync_seq != prev_sync_seq);
+ flush_delayed_work_sync(&mp->m_sync_work);
}
return 0;
@@ -1345,8 +1255,8 @@ xfs_fs_remount(
* options that we can't actually change.
*/
#if 0
- printk(KERN_INFO
- "XFS: mount option \"%s\" not supported for remount\n", p);
+ xfs_info(mp,
+ "mount option \"%s\" not supported for remount\n", p);
return -EINVAL;
#else
break;
@@ -1367,8 +1277,7 @@ xfs_fs_remount(
if (mp->m_update_flags) {
error = xfs_mount_log_sb(mp, mp->m_update_flags);
if (error) {
- cmn_err(CE_WARN,
- "XFS: failed to write sb changes");
+ xfs_warn(mp, "failed to write sb changes");
return error;
}
mp->m_update_flags = 0;
@@ -1452,15 +1361,15 @@ xfs_finish_flags(
mp->m_logbsize = mp->m_sb.sb_logsunit;
} else if (mp->m_logbsize > 0 &&
mp->m_logbsize < mp->m_sb.sb_logsunit) {
- cmn_err(CE_WARN,
- "XFS: logbuf size must be greater than or equal to log stripe size");
+ xfs_warn(mp,
+ "logbuf size must be greater than or equal to log stripe size");
return XFS_ERROR(EINVAL);
}
} else {
/* Fail a mount if the logbuf is larger than 32K */
if (mp->m_logbsize > XLOG_BIG_RECORD_BSIZE) {
- cmn_err(CE_WARN,
- "XFS: logbuf size for version 1 logs must be 16K or 32K");
+ xfs_warn(mp,
+ "logbuf size for version 1 logs must be 16K or 32K");
return XFS_ERROR(EINVAL);
}
}
@@ -1477,8 +1386,8 @@ xfs_finish_flags(
* prohibit r/w mounts of read-only filesystems
*/
if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) {
- cmn_err(CE_WARN,
- "XFS: cannot mount a read-only filesystem as read-write");
+ xfs_warn(mp,
+ "cannot mount a read-only filesystem as read-write");
return XFS_ERROR(EROFS);
}
@@ -1502,9 +1411,6 @@ xfs_fs_fill_super(
spin_lock_init(&mp->m_sb_lock);
mutex_init(&mp->m_growlock);
atomic_set(&mp->m_active_trans, 0);
- INIT_LIST_HEAD(&mp->m_sync_list);
- spin_lock_init(&mp->m_sync_lock);
- init_waitqueue_head(&mp->m_wait_single_sync_task);
mp->m_super = sb;
sb->s_fs_info = mp;
@@ -1551,10 +1457,14 @@ xfs_fs_fill_super(
if (error)
goto out_free_sb;
- error = xfs_mountfs(mp);
- if (error)
- goto out_filestream_unmount;
-
+ /*
+ * we must configure the block size in the superblock before we run the
+ * full mount process as the mount process can lookup and cache inodes.
+ * For the same reason we must also initialise the syncd and register
+ * the inode cache shrinker so that inodes can be reclaimed during
+ * operations like a quotacheck that iterate all inodes in the
+ * filesystem.
+ */
sb->s_magic = XFS_SB_MAGIC;
sb->s_blocksize = mp->m_sb.sb_blocksize;
sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1;
@@ -1562,6 +1472,16 @@ xfs_fs_fill_super(
sb->s_time_gran = 1;
set_posix_acl_flag(sb);
+ error = xfs_syncd_init(mp);
+ if (error)
+ goto out_filestream_unmount;
+
+ xfs_inode_shrinker_register(mp);
+
+ error = xfs_mountfs(mp);
+ if (error)
+ goto out_syncd_stop;
+
root = igrab(VFS_I(mp->m_rootip));
if (!root) {
error = ENOENT;
@@ -1577,14 +1497,11 @@ xfs_fs_fill_super(
goto fail_vnrele;
}
- error = xfs_syncd_init(mp);
- if (error)
- goto fail_vnrele;
-
- xfs_inode_shrinker_register(mp);
-
return 0;
+ out_syncd_stop:
+ xfs_inode_shrinker_unregister(mp);
+ xfs_syncd_stop(mp);
out_filestream_unmount:
xfs_filestream_unmount(mp);
out_free_sb:
@@ -1608,6 +1525,9 @@ xfs_fs_fill_super(
}
fail_unmount:
+ xfs_inode_shrinker_unregister(mp);
+ xfs_syncd_stop(mp);
+
/*
* Blow away any referenced inode in the filestreams cache.
* This can and will cause log traffic as inodes go inactive
@@ -1797,6 +1717,38 @@ xfs_destroy_zones(void)
}
STATIC int __init
+xfs_init_workqueues(void)
+{
+ /*
+ * max_active is set to 8 to give enough concurency to allow
+ * multiple work operations on each CPU to run. This allows multiple
+ * filesystems to be running sync work concurrently, and scales with
+ * the number of CPUs in the system.
+ */
+ xfs_syncd_wq = alloc_workqueue("xfssyncd", WQ_CPU_INTENSIVE, 8);
+ if (!xfs_syncd_wq)
+ goto out;
+
+ xfs_ail_wq = alloc_workqueue("xfsail", WQ_CPU_INTENSIVE, 8);
+ if (!xfs_ail_wq)
+ goto out_destroy_syncd;
+
+ return 0;
+
+out_destroy_syncd:
+ destroy_workqueue(xfs_syncd_wq);
+out:
+ return -ENOMEM;
+}
+
+STATIC void
+xfs_destroy_workqueues(void)
+{
+ destroy_workqueue(xfs_ail_wq);
+ destroy_workqueue(xfs_syncd_wq);
+}
+
+STATIC int __init
init_xfs_fs(void)
{
int error;
@@ -1811,10 +1763,14 @@ init_xfs_fs(void)
if (error)
goto out;
- error = xfs_mru_cache_init();
+ error = xfs_init_workqueues();
if (error)
goto out_destroy_zones;
+ error = xfs_mru_cache_init();
+ if (error)
+ goto out_destroy_wq;
+
error = xfs_filestream_init();
if (error)
goto out_mru_cache_uninit;
@@ -1831,6 +1787,10 @@ init_xfs_fs(void)
if (error)
goto out_cleanup_procfs;
+ error = xfs_init_workqueues();
+ if (error)
+ goto out_sysctl_unregister;
+
vfs_initquota();
error = register_filesystem(&xfs_fs_type);
@@ -1848,6 +1808,8 @@ init_xfs_fs(void)
xfs_filestream_uninit();
out_mru_cache_uninit:
xfs_mru_cache_uninit();
+ out_destroy_wq:
+ xfs_destroy_workqueues();
out_destroy_zones:
xfs_destroy_zones();
out:
@@ -1864,6 +1826,7 @@ exit_xfs_fs(void)
xfs_buf_terminate();
xfs_filestream_uninit();
xfs_mru_cache_uninit();
+ xfs_destroy_workqueues();
xfs_destroy_zones();
}