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| author |   Soheil Hassas Yeganeh <soheil@google.com> | 2020-12-18 14:01:48 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-19 11:18:37 -0800 |
| commit | 2efdaf7660c408d57721cc6dacb0167f866cb451 (patch) | |
| tree | f408a18b19361393572b8a59525bf97826fd08f9 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | epoll: check for events when removing a timed out thread from the wait queue (diff) | |
| download | linux-dev-2efdaf7660c408d57721cc6dacb0167f866cb451.tar.xz linux-dev-2efdaf7660c408d57721cc6dacb0167f866cb451.zip | |
epoll: simplify signal handling
Check signals before locking ep->lock, and immediately return -EINTR if
there is any signal pending.
This saves a few loads, stores, and branches from the hot path and
simplifies the loop structure for follow up patches.
Link: https://lkml.kernel.org/r/20201106231635.3528496-3-soheil.kdev@gmail.com
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Khazhismel Kumykov <khazhy@google.com>
Cc: Guantao Liu <guantaol@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions