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Commit db47fef2 authored by Josef Bacik's avatar Josef Bacik Committed by Al Viro
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Ocfs2: handle hole punching via fallocate properly 



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: default avatarJan Kara <jack@suse.cz>
Acked-by: default avatarJoel Becker <joel.becker@oracle.com>
Signed-off-by: default avatarJosef Bacik <josef@redhat.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent c25d2467

fs/ocfs2/file.c

+6 −2
Original line number Diff line number Diff line
@@ -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,