diff options
| -rw-r--r-- | fs/xfs/xfs_super.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 5a5d9453cf51..5ef5d8416f70 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -910,11 +910,21 @@ xfs_fs_freeze( struct super_block *sb) { struct xfs_mount *mp = XFS_M(sb); + unsigned int flags; + int ret; + /* + * The filesystem is now frozen far enough that memory reclaim + * cannot safely operate on the filesystem. Hence we need to + * set a GFP_NOFS context here to avoid recursion deadlocks. + */ + flags = memalloc_nofs_save(); xfs_stop_block_reaping(mp); xfs_save_resvblks(mp); xfs_quiesce_attr(mp); - return xfs_sync_sb(mp, true); + ret = xfs_sync_sb(mp, true); + memalloc_nofs_restore(flags); + return ret; } STATIC int |