tree da4cdd7c60acff82d2fcc826cdbae43440a6df44
parent b15e0905f2b9964fc7426fecab57445e96021b61
author Prasanna Meda <pmeda@akamai.com> 1119399276 -0700
committer Linus Torvalds <torvalds@ppc970.osdl.org> 1119404773 -0700

[PATCH] madvise: do not split the maps

This attempts to avoid splittings when it is not needed, that is when
vm_flags are same as new flags.  The idea is from the <2.6.11 mlock_fixup
and others.  This will provide base for the next madvise merging patch.

Signed-off-by: Prasanna Meda <pmeda@akamai.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>