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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-02-01 15:52:35 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-02-17 15:14:39 -0800 |
| commit | 168adf93380bada1eefaca8dee29556faf3a0986 (patch) | |
| tree | a1fe4d301415f718fe9fe91d60cf81d54b4c70aa /kernel/sched.c | |
| parent | cea229ad1aebf290feea057734a90b4a9b329ea8 (diff) | |
epoll: epoll_wait() should not use timespec_add_ns()
commit 0781b909b5586f4db720b5d1838b78f9d8e42f14 upstream.
commit 95aac7b1cd224f ("epoll: make epoll_wait() use the hrtimer range
feature") added a performance regression because it uses timespec_add_ns()
with potential very large 'ns' values.
[akpm@linux-foundation.org: s/epoll_set_mstimeout/ep_set_mstimeout/, per Davide]
Reported-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Shawn Bohrer <shawn.bohrer@gmail.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel/sched.c')
0 files changed, 0 insertions, 0 deletions