diff options
| author | Josef Bacik <josef@redhat.com> | 2010-11-17 20:46:16 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-01-12 20:16:43 -0500 |
| commit | c25d246715b87ad37e69e7abd1a0fed781423fa2 (patch) | |
| tree | 18c13bcaa9e125a362d7d0ff24787d859d8d9b64 /fs/xfs | |
| parent | 79124f18b335172e1916075c633745e12dae1dac (diff) | |
| download | lwn-c25d246715b87ad37e69e7abd1a0fed781423fa2.tar.gz lwn-c25d246715b87ad37e69e7abd1a0fed781423fa2.zip | |
XFS: handle hole punching via fallocate properly
This patch simply allows XFS to handle the hole punching flag in fallocate
properly. I've tested this with a little program that does a bunch of random
hole punching with FL_KEEP_SIZE and without it to make sure it does the right
thing. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_iops.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c index 94d5fd6a2973..da54403633b6 100644 --- a/fs/xfs/linux-2.6/xfs_iops.c +++ b/fs/xfs/linux-2.6/xfs_iops.c @@ -516,6 +516,7 @@ xfs_vn_fallocate( loff_t new_size = 0; xfs_flock64_t bf; xfs_inode_t *ip = XFS_I(inode); + int cmd = XFS_IOC_RESVSP; /* preallocation on directories not yet supported */ error = -ENODEV; @@ -528,6 +529,9 @@ xfs_vn_fallocate( xfs_ilock(ip, XFS_IOLOCK_EXCL); + if (mode & FALLOC_FL_PUNCH_HOLE) + cmd = XFS_IOC_UNRESVSP; + /* check the new inode size is valid before allocating */ if (!(mode & FALLOC_FL_KEEP_SIZE) && offset + len > i_size_read(inode)) { @@ -537,8 +541,7 @@ xfs_vn_fallocate( goto out_unlock; } - error = -xfs_change_file_space(ip, XFS_IOC_RESVSP, &bf, - 0, XFS_ATTR_NOLOCK); + error = -xfs_change_file_space(ip, cmd, &bf, 0, XFS_ATTR_NOLOCK); if (error) goto out_unlock; |