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| author | Mikulas Patocka <mpatocka@redhat.com> | 2019-03-06 08:29:34 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-23 20:11:34 +0100 |
| commit | b6246ffae5a0e05878afd0079ff6a9c76df865ec (patch) | |
| tree | 981279697a94d4be59bc5e0cfad169e1b4b636c3 /drivers/md | |
| parent | dca22c59e47e2af32943c471aa879fa9ba20baf0 (diff) | |
| download | blackbird-obmc-linux-b6246ffae5a0e05878afd0079ff6a9c76df865ec.tar.gz blackbird-obmc-linux-b6246ffae5a0e05878afd0079ff6a9c76df865ec.zip | |
dm integrity: limit the rate of error messages
commit 225557446856448039a9e495da37b72c20071ef2 upstream.
When using dm-integrity underneath md-raid, some tests with raid
auto-correction trigger large amounts of integrity failures - and all
these failures print an error message. These messages can bring the
system to a halt if the system is using serial console.
Fix this by limiting the rate of error messages - it improves the speed
of raid recovery and avoids the hang.
Fixes: 7eada909bfd7a ("dm: add integrity target")
Cc: stable@vger.kernel.org # v4.12+
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-integrity.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index 457200ca6287..2e823252d797 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -1368,8 +1368,8 @@ again: checksums_ptr - checksums, !dio->write ? TAG_CMP : TAG_WRITE); if (unlikely(r)) { if (r > 0) { - DMERR("Checksum failed at sector 0x%llx", - (unsigned long long)(sector - ((r + ic->tag_size - 1) / ic->tag_size))); + DMERR_LIMIT("Checksum failed at sector 0x%llx", + (unsigned long long)(sector - ((r + ic->tag_size - 1) / ic->tag_size))); r = -EILSEQ; atomic64_inc(&ic->number_of_mismatches); } @@ -1561,8 +1561,8 @@ retry_kmap: integrity_sector_checksum(ic, logical_sector, mem + bv.bv_offset, checksums_onstack); if (unlikely(memcmp(checksums_onstack, journal_entry_tag(ic, je), ic->tag_size))) { - DMERR("Checksum failed when reading from journal, at sector 0x%llx", - (unsigned long long)logical_sector); + DMERR_LIMIT("Checksum failed when reading from journal, at sector 0x%llx", + (unsigned long long)logical_sector); } } #endif |
