The patch titled
slob: fix free block merging at head of subpage
has been removed from the -mm tree. Its filename was
slob-fix-free-block-merging-at-head-of-subpage.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: slob: fix free block merging at head of subpage
From: Matt Mackall <mpm@xxxxxxxxxxx>
We weren't merging freed blocks at the beginning of the free list. Fixing
this showed a 2.5% efficiency improvement in a userspace test harness.
Signed-off-by: Matt Mackall <mpm@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slob.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN mm/slob.c~slob-fix-free-block-merging-at-head-of-subpage mm/slob.c
--- a/mm/slob.c~slob-fix-free-block-merging-at-head-of-subpage
+++ a/mm/slob.c
@@ -398,6 +398,10 @@ static void slob_free(void *block, int s
sp->units += units;
if (b < sp->free) {
+ if (b + units == sp->free) {
+ units += slob_units(sp->free);
+ sp->free = slob_next(sp->free);
+ }
set_slob(b, units, sp->free);
sp->free = b;
} else {
_
Patches currently in -mm which might be from mpm@xxxxxxxxxxx are
origin.patch
drivers-char-randomcwrite_pool-cond_resched-needed.patch
random-clean-up-checkpatch-complaints.patch
random-clean-up-checkpatch-complaints-fix.patch
random-consolidate-wakeup-logic.patch
random-use-unlocked_ioctl.patch
random-reuse-rand_initialize.patch
random-improve-variable-naming-clear-extract-buffer.patch
random-make-backtracking-attacks-harder.patch
random-remove-cacheline-alignment-for-locks.patch
random-eliminate-redundant-new_rotate-variable.patch
random-remove-some-prefetch-logic.patch
random-simplify-add_ptr-logic.patch
random-make-mixing-interface-byte-oriented.patch
random-simplify-and-rename-credit_entropy_store.patch
random-add-async-notification-support-to-dev-random.patch
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