[PATCH 3/6] Ocfs2: handle hole punching via fallocate properly

Josef Bacik
2010-11-08T20:39:08Z

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,

Signed-off-by: Josef Bacik <josef@redhat.com>
---
fs/ocfs2/file.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 77b4c04..ad23a18 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1992,6 +1992,7 @@ 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;
@@ -2002,12 +2003,15 @@ 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,
--
1.6.6.1