proc: smaller readlock section in readdir("/proc")
authorAlexey Dobriyan <adobriyan@gmail.com>
Wed, 22 Aug 2018 04:54:23 +0000 (21:54 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 22 Aug 2018 17:52:45 +0000 (10:52 -0700)
commit8d48b2e044218ba8b3f6b1d34e96a7474b6b0688
treeb649d72c3703bdfa6cc1b0bbedbf861c1476786f
parent2cd36fb329487e9525db3ccdbac1e92053b646fa
proc: smaller readlock section in readdir("/proc")

Readdir context is thread local, so ->pos is thread local,
move it out of readlock.

Link: http://lkml.kernel.org/r/20180627195339.GD18113@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/proc/generic.c