tree 5579fa13b1fc8081201f05d687e6dc795d9d648f
parent 7e871b6c8f1f4fda41e51ef86147facecac3be9f
author Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> 1127321739 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1127322715 -0700

[PATCH] mm: add a note about partially hardcoded VM_* flags

Hugh made me note this line for permission checking in mprotect():

		if ((newflags & ~(newflags >> 4)) & 0xf) {

after figuring out what's that about, I decided it's nasty enough.  Btw
Hugh itself didn't like the 0xf.

We can safely change it to VM_READ|VM_WRITE|VM_EXEC because we never change
VM_SHARED, so no need to check that.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>