diff options
| author | Kirill Korotaev <dev@sw.ru> | 2006-08-13 23:24:23 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-08-23 14:13:31 -0700 |
| commit | 024bd8b8e0a55a53422d5f6138974b2c83f0a73e (patch) | |
| tree | 0e1249901619185a415a0804ceeca6f65db2a627 /drivers | |
| parent | bb417c4bad96b07f075b98f874fb28cf258f8065 (diff) | |
sys_getppid oopses on debug kernel
sys_getppid() optimization can access a freed memory. On kernels with
DEBUG_SLAB turned ON, this results in Oops. As Dave Hansen noted, this
optimization is also unsafe for memory hotplug.
So this patch always takes the lock to be safe.
[oleg@tv-sign.ru: simplifications]
Signed-off-by: Kirill Korotaev <dev@openvz.org>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions