summaryrefslogtreecommitdiffstats
path: root/block
diff options
context:
space:
mode:
authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2020-10-08 22:37:23 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-10-30 10:38:26 +0100
commitf86b9bf6228bb334fe1addcd566a658ecbd08f7e (patch)
tree1f92eefb77893b5a2f040770136701e4d0d17e6c /block
parent847fbf22ce2e1308454d793174063646f560d819 (diff)
downloadlinux-stable-f86b9bf6228bb334fe1addcd566a658ecbd08f7e.tar.gz
linux-stable-f86b9bf6228bb334fe1addcd566a658ecbd08f7e.tar.bz2
linux-stable-f86b9bf6228bb334fe1addcd566a658ecbd08f7e.zip
block: ratelimit handle_bad_sector() message
[ Upstream commit f4ac712e4fe009635344b9af5d890fe25fcc8c0d ] syzbot is reporting unkillable task [1], for the caller is failing to handle a corrupted filesystem image which attempts to access beyond the end of the device. While we need to fix the caller, flooding the console with handle_bad_sector() message is unlikely useful. [1] https://syzkaller.appspot.com/bug?id=f1f49fb971d7a3e01bd8ab8cff2ff4572ccf3092 Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'block')
-rw-r--r--block/blk-core.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index ce3710404544..445b878e3519 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -2127,11 +2127,10 @@ static void handle_bad_sector(struct bio *bio, sector_t maxsector)
{
char b[BDEVNAME_SIZE];
- printk(KERN_INFO "attempt to access beyond end of device\n");
- printk(KERN_INFO "%s: rw=%d, want=%Lu, limit=%Lu\n",
- bio_devname(bio, b), bio->bi_opf,
- (unsigned long long)bio_end_sector(bio),
- (long long)maxsector);
+ pr_info_ratelimited("attempt to access beyond end of device\n"
+ "%s: rw=%d, want=%llu, limit=%llu\n",
+ bio_devname(bio, b), bio->bi_opf,
+ bio_end_sector(bio), maxsector);
}
#ifdef CONFIG_FAIL_MAKE_REQUEST