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Ocfs2: handle hole punching via fallocate properly

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This patch just makes ocfs2 use its UNRESERVP ioctl when we get the hole punch
flag in fallocate.  I didn't test it, but it seems simple enough.  Thanks,

Acked-by: Jan Kara <jack@suse.cz>
Acked-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Josef Bacik 2010-11-17 20:46:17 -05:00 committed by Al Viro
parent c25d246715
commit db47fef2cd
1 changed files with 6 additions and 2 deletions
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8
fs/ocfs2/file.c
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@ -1995,6 +1995,7 @@ static long ocfs2_fallocate(struct inode *inode, int mode, loff_t offset,
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_space_resv sr;
int change_size = 1;
int cmd = OCFS2_IOC_RESVSP64;
if (!ocfs2_writes_unwritten_extents(osb))
return -EOPNOTSUPP;
@ -2005,12 +2006,15 @@ static long ocfs2_fallocate(struct inode *inode, int mode, loff_t offset,
if (mode & FALLOC_FL_KEEP_SIZE)
change_size = 0;
if (mode & FALLOC_FL_PUNCH_HOLE)
cmd = OCFS2_IOC_UNRESVSP64;
sr.l_whence = 0;
sr.l_start = (s64)offset;
sr.l_len = (s64)len;
return __ocfs2_change_file_space(NULL, inode, offset,
OCFS2_IOC_RESVSP64, &sr, change_size);
return __ocfs2_change_file_space(NULL, inode, offset, cmd, &sr,
change_size);
}
int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,