Revision a247c3a97a0216b18a46243eda26081f1928ec37 authored by Andrea Arcangeli on 22 September 2010, 20:05:12 UTC, committed by Linus Torvalds on 23 September 2010, 00:22:39 UTC
The below bug in fork led to the rmap walk finding the parent huge-pmd twice instead of just once, because the anon_vma_chain objects of the child vma still point to the vma->vm_mm of the parent. The patch fixes it by making the rmap walk accurate during fork. It's not a big deal normally but it worth being accurate considering the cost is the same. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Acked-by: Johannes Weiner <jweiner@redhat.com> Acked-by: Rik van Riel <riel@redhat.com> Acked-by: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 3.4 KB |
| Makefile | -rw-r--r-- | 388 bytes |
| acl.c | -rw-r--r-- | 10.5 KB |
| acl.h | -rw-r--r-- | 1.5 KB |
| balloc.c | -rw-r--r-- | 54.6 KB |
| bitmap.c | -rw-r--r-- | 702 bytes |
| dir.c | -rw-r--r-- | 13.5 KB |
| ext3_jbd.c | -rw-r--r-- | 1.5 KB |
| file.c | -rw-r--r-- | 2.2 KB |
| fsync.c | -rw-r--r-- | 2.9 KB |
| hash.c | -rw-r--r-- | 4.3 KB |
| ialloc.c | -rw-r--r-- | 20.7 KB |
| inode.c | -rw-r--r-- | 101.7 KB |
| ioctl.c | -rw-r--r-- | 7.7 KB |
| namei.c | -rw-r--r-- | 66.8 KB |
| namei.h | -rw-r--r-- | 170 bytes |
| resize.c | -rw-r--r-- | 33.4 KB |
| super.c | -rw-r--r-- | 82.7 KB |
| symlink.c | -rw-r--r-- | 1.4 KB |
| xattr.c | -rw-r--r-- | 34.5 KB |
| xattr.h | -rw-r--r-- | 3.8 KB |
| xattr_security.c | -rw-r--r-- | 1.9 KB |
| xattr_trusted.c | -rw-r--r-- | 1.5 KB |
| xattr_user.c | -rw-r--r-- | 1.6 KB |
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