when an error is hit, printing the error number is helpful.
this patch adds prints in such cases in aops.c.
Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com>
---
fs/ocfs2/aops.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index b2c52b3..04e0760 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -349,8 +349,10 @@ static int ocfs2_readpages(struct file *filp, struct
address_space *mapping,
* lock inversion, but don't bother with retrying.
*/
ret = ocfs2_inode_lock_full(inode, NULL, 0, OCFS2_LOCK_NONBLOCK);
- if (ret)
+ if (ret) {
+ mlog_errno(ret);
return err;
+ }
if (down_read_trylock(&oi->ip_alloc_sem) == 0) {
ocfs2_inode_unlock(inode, 0);
@@ -842,8 +844,10 @@ int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno,
*/
while(wait_bh > wait) {
wait_on_buffer(*--wait_bh);
- if (!buffer_uptodate(*wait_bh))
+ if (!buffer_uptodate(*wait_bh)) {
ret = -EIO;
+ mlog_errno(ret);
+ }
}
if (ret == 0 || !new)
@@ -1527,6 +1531,7 @@ static int ocfs2_write_begin_inline(struct address_space
*mapping,
if (!PageUptodate(page)) {
ret = ocfs2_read_inline_data(inode, page, wc->w_di_bh);
if (ret) {
+ mlog_errno(ret);
ocfs2_commit_trans(osb, handle);
goto out;
--
1.6.2.5