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(parent: 281ab03) | patch
Make sure we copy pages inserted with "vm_insert_page()" on fork
authorLinus Torvalds <torvalds@g5.osdl.org>
Fri, 16 Dec 2005 18:21:23 +0000 (10:21 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Fri, 16 Dec 2005 18:21:23 +0000 (10:21 -0800)
commit4d7672b46244abffea1953e55688c0ea143dd617
tree9f3bdf438bcb0d5f6e723665ced23308fffb8368tree | snapshot (tar.gz zip)
parent281ab031a8c9e5b593142eb4ec59a87faae8676acommit | diff
Make sure we copy pages inserted with "vm_insert_page()" on fork

The logic that decides that a fork() might be able to avoid copying a VM
area when it can be re-created by page faults didn't know about the new
vm_insert_page() case.

Also make some things a bit more anal wrt VM_PFNMAP.

Pointed out by Hugh Dickins <hugh@veritas.com>

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
include/linux/mm.h diff | blob | blame | history
mm/memory.c diff | blob | blame | history
mm/mmap.c diff | blob | blame | history
mm/mremap.c diff | blob | blame | history