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: 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>
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index bdadbae0..63e3fca 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1995,6 +1995,7 @@
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 @@
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,