| commit | 259756fcc66e2d6dd732c0b4ff99f825e69b3ba2 | |
| author | Linus Torvalds <torvalds@linux-foundation.org> | |
| Fri, 20 Aug 2010 23:39:25 +0000 (20 16:39 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Thu, 26 Aug 2010 23:43:38 +0000 (26 16:43 -0700) | ||
| tree | 202d8e4d51bd6316b99eb637e76c5fd4885b5907 | treesnapshot (tar.gz zip) |
| parent | 159e767472c7febb546db582327ff8bc14c06b98 | commitdiff |
mm: make the mlock() stack guard page checks stricter
commit 7798330ac8114c731cfab83e634c6ecedaa233d7 upstream.
If we've split the stack vma, only the lowest one has the guard page.
Now that we have a doubly linked list of vma's, checking this is trivial.
Tested-by: Ian Campbell <ijc@hellion.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 7798330ac8114c731cfab83e634c6ecedaa233d7 upstream.
If we've split the stack vma, only the lowest one has the guard page.
Now that we have a doubly linked list of vma's, checking this is trivial.
Tested-by: Ian Campbell <ijc@hellion.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| mm/mlock.c | diffblobblamehistory |