diff options
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_super.c')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_super.c | 87 |
1 files changed, 57 insertions, 30 deletions
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index a220d36f789b..18a4b8e11df2 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -67,7 +67,7 @@ #include <linux/freezer.h> #include <linux/parser.h> -static struct super_operations xfs_super_operations; +static const struct super_operations xfs_super_operations; static kmem_zone_t *xfs_ioend_zone; mempool_t *xfs_ioend_pool; @@ -579,15 +579,19 @@ xfs_showargs( else if (mp->m_qflags & XFS_UQUOTA_ACCT) seq_puts(m, "," MNTOPT_UQUOTANOENF); - if (mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD)) - seq_puts(m, "," MNTOPT_PRJQUOTA); - else if (mp->m_qflags & XFS_PQUOTA_ACCT) - seq_puts(m, "," MNTOPT_PQUOTANOENF); - - if (mp->m_qflags & (XFS_GQUOTA_ACCT|XFS_OQUOTA_ENFD)) - seq_puts(m, "," MNTOPT_GRPQUOTA); - else if (mp->m_qflags & XFS_GQUOTA_ACCT) - seq_puts(m, "," MNTOPT_GQUOTANOENF); + /* Either project or group quotas can be active, not both */ + + 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); + } else 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); @@ -687,7 +691,7 @@ xfs_barrier_test( return error; } -void +STATIC void xfs_mountfs_check_barriers(xfs_mount_t *mp) { int error; @@ -973,6 +977,28 @@ xfs_fs_inode_init_once( } /* + * Dirty the XFS inode when mark_inode_dirty_sync() is called so that + * we catch unlogged VFS level updates to the inode. Care must be taken + * here - the transaction code calls mark_inode_dirty_sync() to mark the + * VFS inode dirty in a transaction and clears the i_update_core field; + * it must clear the field after calling mark_inode_dirty_sync() to + * correctly indicate that the dirty state has been propagated into the + * inode log item. + * + * We need the barrier() to maintain correct ordering between unlogged + * updates and the transaction commit code that clears the i_update_core + * field. This requires all updates to be completed before marking the + * inode dirty. + */ +STATIC void +xfs_fs_dirty_inode( + struct inode *inode) +{ + barrier(); + XFS_I(inode)->i_update_core = 1; +} + +/* * Attempt to flush the inode, this will actually fail * if the inode is pinned, but we dirty the inode again * at the point when it is unpinned after a log write, @@ -1122,7 +1148,7 @@ xfs_fs_put_super( } STATIC int -xfs_fs_sync_super( +xfs_fs_sync_fs( struct super_block *sb, int wait) { @@ -1130,23 +1156,23 @@ xfs_fs_sync_super( int error; /* - * Treat a sync operation like a freeze. This is to work - * around a race in sync_inodes() which works in two phases - * - an asynchronous flush, which can write out an inode - * without waiting for file size updates to complete, and a - * synchronous flush, which wont do anything because the - * async flush removed the inode's dirty flag. Also - * sync_inodes() will not see any files that just have - * outstanding transactions to be flushed because we don't - * dirty the Linux inode until after the transaction I/O - * completes. + * Not much we can do for the first async pass. Writing out the + * superblock would be counter-productive as we are going to redirty + * when writing out other data and metadata (and writing out a single + * block is quite fast anyway). + * + * Try to asynchronously kick off quota syncing at least. */ - if (wait || unlikely(sb->s_frozen == SB_FREEZE_WRITE)) - error = xfs_quiesce_data(mp); - else - error = xfs_sync_fsdata(mp, 0); + if (!wait) { + xfs_qm_sync(mp, SYNC_TRYLOCK); + return 0; + } - if (unlikely(laptop_mode)) { + error = xfs_quiesce_data(mp); + if (error) + return -error; + + if (laptop_mode) { int prev_sync_seq = mp->m_sync_seq; /* @@ -1165,7 +1191,7 @@ xfs_fs_sync_super( mp->m_sync_seq != prev_sync_seq); } - return -error; + return 0; } STATIC int @@ -1532,13 +1558,14 @@ xfs_fs_get_sb( mnt); } -static struct super_operations xfs_super_operations = { +static const struct super_operations xfs_super_operations = { .alloc_inode = xfs_fs_alloc_inode, .destroy_inode = xfs_fs_destroy_inode, + .dirty_inode = xfs_fs_dirty_inode, .write_inode = xfs_fs_write_inode, .clear_inode = xfs_fs_clear_inode, .put_super = xfs_fs_put_super, - .sync_fs = xfs_fs_sync_super, + .sync_fs = xfs_fs_sync_fs, .freeze_fs = xfs_fs_freeze, .statfs = xfs_fs_statfs, .remount_fs = xfs_fs_remount, |