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smb3: add one more dynamic tracepoint missing from strict fsync path 

We didn't have a dynamic trace point for catching errors in
file_write_and_wait_range error cases in cifs_strict_fsync.

Since not all apps check for write behind errors, it can be
important for debugging to be able to trace these error
paths.

Suggested-and-reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Steve French 2020-02-06 16:04:59 -06:00
parent e3e056c351
commit 2391ca41b4
1 changed files with 3 additions and 1 deletions
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4
fs/cifs/file.c
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@ -2593,8 +2593,10 @@ int cifs_strict_fsync(struct file *file, loff_t start, loff_t end,
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
rc = file_write_and_wait_range(file, start, end);
if (rc)
if (rc) {
trace_cifs_fsync_err(inode->i_ino, rc);
return rc;
}
xid = get_xid();