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Btrfs: ratelimit IO error printks

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Btrfs has printks for various IO errors, including bad checksums and
mismatches between what we expect the block headers to contain and what
we actually find on the disk.

Longer term we need a real reporting mechanism for this, but for now
printk is going to have to do.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2009-04-27 07:29:05 -04:00
parent b7967db75a
commit 193f284d49
2 changed files with 31 additions and 17 deletions
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10
fs/btrfs/inode.c
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@ -1823,10 +1823,12 @@ good:
return 0;
zeroit:
printk(KERN_INFO "btrfs csum failed ino %lu off %llu csum %u "
"private %llu\n", page->mapping->host->i_ino,
(unsigned long long)start, csum,
(unsigned long long)private);
if (printk_ratelimit()) {
printk(KERN_INFO "btrfs csum failed ino %lu off %llu csum %u "
"private %llu\n", page->mapping->host->i_ino,
(unsigned long long)start, csum,
(unsigned long long)private);
}
memset(kaddr + offset, 1, end - start + 1);
flush_dcache_page(page);
kunmap_atomic(kaddr, KM_USER0);