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| author |   Konstantin Khlebnikov <khlebnikov@yandex-team.ru> | 2015-04-16 12:47:56 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-17 09:04:07 -0400 |
| commit | 90f31d0ea88880f780574f3d0bb1a227c4c66ca3 (patch) | |
| tree | 5367f83919939a2d83888b3a1c48e5ba06e0f574 /kernel/sys.c | |
| parent | Doc/sysctl/kernel.txt: document threads-max (diff) | |
| download | linux-dev-90f31d0ea88880f780574f3d0bb1a227c4c66ca3.tar.xz linux-dev-90f31d0ea88880f780574f3d0bb1a227c4c66ca3.zip | |
mm: rcu-protected get_mm_exe_file()
This patch removes mm->mmap_sem from mm->exe_file read side.
Also it kills dup_mm_exe_file() and moves exe_file duplication into
dup_mmap() where both mmap_sems are locked.
[akpm@linux-foundation.org: fix comment typo]
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/sys.c')
0 files changed, 0 insertions, 0 deletions