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| author |   Eric W. Biederman <ebiederm@xmission.com> | 2006-10-02 02:17:27 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-02 07:57:15 -0700 |
| commit | 43fa1adb9334bf4585cd53144eb5911488f85bc7 (patch) | |
| tree | 64be64424e7db15e1872077f900870895ccac85b /kernel/signal.c | |
| parent | [PATCH] update mq_notify to use a struct pid (diff) | |
| download | wireguard-linux-43fa1adb9334bf4585cd53144eb5911488f85bc7.tar.xz wireguard-linux-43fa1adb9334bf4585cd53144eb5911488f85bc7.zip | |
[PATCH] file: Add locking to f_getown
This has been needed for a long time, but now with the advent of a
reference counted struct pid there are real consequences for getting this
wrong.
Someone I think it was Oleg Nesterov pointed out that this construct was
missing locking, when I introduced struct pid. After taking time to review
the locking construct already present I figured out which lock needs to be
taken. The other paths that access f_owner.pid take either the f_owner
read or the write lock.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/signal.c')
0 files changed, 0 insertions, 0 deletions