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| author |   Pavel Begunkov <asml.silence@gmail.com> | 2021-08-09 13:04:04 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2021-08-23 13:07:56 -0600 |
| commit | c97d8a0f68b30960e9c8089bc37cc3b96a96f84d (patch) | |
| tree | fbad0bb9fb30d9295d296a4fbe40f84720accf4b /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | io_uring: rename io_file_supports_async() (diff) | |
| download | linux-dev-c97d8a0f68b30960e9c8089bc37cc3b96a96f84d.tar.xz linux-dev-c97d8a0f68b30960e9c8089bc37cc3b96a96f84d.zip | |
io_uring: avoid touching inode in rw prep
If we use fixed files, we can be sure (almost) that REQ_F_ISREG is set.
However, for non-reg files io_prep_rw() still will look into inode to
double check, and that's expensive and can be avoided.
The only caveat is that it only currently works with 64+ bit
architectures, see FFS_ISREG, so we should consider that.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/0a62780c491ca2522cd52db4ae3f16e03aafed0f.1628471125.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions