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| author |   NeilBrown <neilb@suse.com> | 2017-04-07 11:10:44 +1000 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2017-04-07 09:39:29 -0600 |
| commit | dbde775cdbf5e401b8739f30c87d1af12c0028db (patch) | |
| tree | cdc69a1d6bf1ab83ce3cb1e1fa9a348a5b83d92e /tools/perf/scripts/python/futex-contention.py | |
| parent | block: move timeout field in struct request to pack better (diff) | |
| download | linux-dev-dbde775cdbf5e401b8739f30c87d1af12c0028db.tar.xz linux-dev-dbde775cdbf5e401b8739f30c87d1af12c0028db.zip | |
block: simple improvements for bio->flags
The comment for the 'flags' field of 'bio' mentions
"command" which is no longer stored there, and doesn't
mention the bvec pool number, which is.
BIO_RESET_BITS is set in such a way that it would need to be
updated if new bits were added, which is easy to miss.
BVEC_POOL_BITS is larger than needed. The BVEC_POOL_IDX()
ranges from 0 to 6, so 3 bits are sufficient.
This patch make improvements in each of these areas.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'tools/perf/scripts/python/futex-contention.py')
0 files changed, 0 insertions, 0 deletions