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| author | Jens Axboe <axboe@kernel.dk> | 2017-12-20 13:13:58 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-12-20 13:16:33 -0700 |
| commit | 4ccafe032005e9b96acbef2e389a4de5b1254add (patch) | |
| tree | cb51d98533349082a57e9573d190343e6034a39c /include | |
| parent | 111be883981748acc9a56e855c8336404a8e787c (diff) | |
| download | lwn-4ccafe032005e9b96acbef2e389a4de5b1254add.tar.gz lwn-4ccafe032005e9b96acbef2e389a4de5b1254add.zip | |
block: unalign call_single_data in struct request
A previous change blindly added massive alignment to the
call_single_data structure in struct request. This ballooned it in size
from 296 to 320 bytes on my setup, for no valid reason at all.
Use the unaligned struct __call_single_data variant instead.
Fixes: 966a967116e69 ("smp: Avoid using two cache lines for struct call_single_data")
Cc: stable@vger.kernel.org # v4.14
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/blkdev.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 100d0df38026..0ce8a372d506 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -135,7 +135,7 @@ typedef __u32 __bitwise req_flags_t; struct request { struct list_head queuelist; union { - call_single_data_t csd; + struct __call_single_data csd; u64 fifo_time; }; |