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| author |   Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2019-01-21 22:49:37 +0900 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2019-02-06 12:58:56 -0700 |
| commit | 43636c804df0126da669c261fc820fb22f62bfc2 (patch) | |
| tree | 77f8c5c0bdcc4afd817aa1369e8ba4e438469281 /include/linux/blktrace_api.h | |
| parent | m68k: set proper major_num when specifying module param major_num (diff) | |
| download | linux-dev-43636c804df0126da669c261fc820fb22f62bfc2.tar.xz linux-dev-43636c804df0126da669c261fc820fb22f62bfc2.zip | |
fs: ratelimit __find_get_block_slow() failure message.
When something let __find_get_block_slow() hit all_mapped path, it calls
printk() for 100+ times per a second. But there is no need to print same
message with such high frequency; it is just asking for stall warning, or
at least bloating log files.
[ 399.866302][T15342] __find_get_block_slow() failed. block=1, b_blocknr=8
[ 399.873324][T15342] b_state=0x00000029, b_size=512
[ 399.878403][T15342] device loop0 blocksize: 4096
[ 399.883296][T15342] __find_get_block_slow() failed. block=1, b_blocknr=8
[ 399.890400][T15342] b_state=0x00000029, b_size=512
[ 399.895595][T15342] device loop0 blocksize: 4096
[ 399.900556][T15342] __find_get_block_slow() failed. block=1, b_blocknr=8
[ 399.907471][T15342] b_state=0x00000029, b_size=512
[ 399.912506][T15342] device loop0 blocksize: 4096
This patch reduces frequency to up to once per a second, in addition to
concatenating three lines into one.
[ 399.866302][T15342] __find_get_block_slow() failed. block=1, b_blocknr=8, b_state=0x00000029, b_size=512, device loop0 blocksize: 4096
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blktrace_api.h')
0 files changed, 0 insertions, 0 deletions