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| author | Mauricio Faria de Oliveira <mfo@canonical.com> | 2020-12-15 04:03:40 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-15 21:13:37 +0100 |
| commit | 45680967ee29e67b62e6800a8780440b840a0b1f (patch) | |
| tree | 046da4a69d252a824f7fb80e4832049455845614 /fs/ocfs2/namei.c | |
| parent | fs/ocfs2/cluster/tcp.c: remove unneeded break (diff) | |
| download | linux-45680967ee29e67b62e6800a8780440b840a0b1f.tar.xz linux-45680967ee29e67b62e6800a8780440b840a0b1f.zip | |
ocfs2: ratelimit the 'max lookup times reached' notice
Running stress-ng on ocfs2 completely fills the kernel log with 'max
lookup times reached, filesystem may have nested directories.'
Let's ratelimit this message as done with others in the code.
Test-case:
# mkfs.ocfs2 --mount local $DEV
# mount $DEV $MNT
# cd $MNT
# dmesg -C
# stress-ng --dirdeep 1 --dirdeep-ops 1000
# dmesg | grep -c 'max lookup times reached'
Before:
# dmesg -C
# stress-ng --dirdeep 1 --dirdeep-ops 1000
...
stress-ng: info: [11116] successful run completed in 3.03s
# dmesg | grep -c 'max lookup times reached'
967
After:
# dmesg -C
# stress-ng --dirdeep 1 --dirdeep-ops 1000
...
stress-ng: info: [739] successful run completed in 0.96s
# dmesg | grep -c 'max lookup times reached'
10
# dmesg
[ 259.086086] ocfs2_check_if_ancestor: 1990 callbacks suppressed
[ 259.086092] (stress-ng-dirde,740,1):ocfs2_check_if_ancestor:1091 max lookup times reached, filesystem may have nested directories, src inode: 18007, dest inode: 17940.
...
Link: https://lkml.kernel.org/r/20201001224417.478263-1-mfo@canonical.com
Signed-off-by: Mauricio Faria de Oliveira <mfo@canonical.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/namei.c')
| -rw-r--r-- | fs/ocfs2/namei.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c index c46bf7f581a1..2a237ab00453 100644 --- a/fs/ocfs2/namei.c +++ b/fs/ocfs2/namei.c @@ -1088,8 +1088,8 @@ static int ocfs2_check_if_ancestor(struct ocfs2_super *osb, child_inode_no = parent_inode_no; if (++i >= MAX_LOOKUP_TIMES) { - mlog(ML_NOTICE, "max lookup times reached, filesystem " - "may have nested directories, " + mlog_ratelimited(ML_NOTICE, "max lookup times reached, " + "filesystem may have nested directories, " "src inode: %llu, dest inode: %llu.\n", (unsigned long long)src_inode_no, (unsigned long long)dest_inode_no); |