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| author | Ethan Solomita <solo@google.com> | 2007-07-16 10:38:16 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 20:05:36 +0400 |
| commit | 462e00cc7151ed91fba688594436c453c80efb5d (patch) | |
| tree | bf648899ba65f9eb000e9c8163a61c1cb1be9bfe /mm/mempolicy.c | |
| parent | b71636e29823c0602d908a2a62e94c9b57a97491 (diff) | |
| download | linux-462e00cc7151ed91fba688594436c453c80efb5d.tar.xz | |
oom: stop allocating user memory if TIF_MEMDIE is set
get_user_pages() can try to allocate a nearly unlimited amount of memory on
behalf of a user process, even if that process has been OOM killed. The
OOM kill occurs upon return to user space via a SIGKILL, but
get_user_pages() will try allocate all its memory before returning. Change
get_user_pages() to check for TIF_MEMDIE, and if set then return
immediately.
Signed-off-by: Ethan Solomita <solo@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mempolicy.c')
0 files changed, 0 insertions, 0 deletions