diff options
Diffstat (limited to 'fs/xfs/xfs_file.c')
| -rw-r--r-- | fs/xfs/xfs_file.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 39fde9f51303..07f951dd2685 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -848,7 +848,7 @@ buffered: #define XFS_FALLOC_FL_SUPPORTED \ (FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE | \ FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE | \ - FALLOC_FL_INSERT_RANGE) + FALLOC_FL_INSERT_RANGE | FALLOC_FL_UNSHARE_RANGE) STATIC long xfs_file_fallocate( @@ -938,9 +938,15 @@ xfs_file_fallocate( if (mode & FALLOC_FL_ZERO_RANGE) error = xfs_zero_file_space(ip, offset, len); - else + else { + if (mode & FALLOC_FL_UNSHARE_RANGE) { + error = xfs_reflink_unshare(ip, offset, len); + if (error) + goto out_unlock; + } error = xfs_alloc_file_space(ip, offset, len, XFS_BMAPI_PREALLOC); + } if (error) goto out_unlock; } |