openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

ceph: tone down loglevel on ceph_mdsc_build_path warning 

When this occurs, it usually means that we raced with a rename, and
there is no need to warn in that case.  Only printk if we pass the
rename sequence check but still ended up with pos < 0.

Either way, this doesn't warrant a KERN_ERR message. Change it to
KERN_WARNING.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Jeff Layton 2019-10-16 08:20:17 -04:00 committed by Ilya Dryomov
parent a9b4b6be12
commit f5946bcc5e
1 changed files with 11 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
fs/ceph/mds_client.c
View File

@ -2182,13 +2182,17 @@ char *ceph_mdsc_build_path(struct dentry *dentry, int *plen, u64 *pbase,
}
base = ceph_ino(d_inode(temp));
rcu_read_unlock();
if (pos < 0 || read_seqretry(&rename_lock, seq)) {
pr_err("build_path did not end path lookup where "
"expected, pos is %d\n", pos);
/* presumably this is only possible if racing with a
rename of one of the parent directories (we can not
lock the dentries above us to prevent this, but
retrying should be harmless) */
if (read_seqretry(&rename_lock, seq))
goto retry;
if (pos < 0) {
/*
* A rename didn't occur, but somehow we didn't end up where
* we thought we would. Throw a warning and try again.
*/
pr_warn("build_path did not end path lookup where "
"expected, pos is %d\n", pos);
goto retry;
}