The patch titled
mm: use roundown_pow_of_two() in zone_batchsize()
has been removed from the -mm tree. Its filename was
mm-use-roundown_pow_of_two-in-zone_batchsize.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: mm: use roundown_pow_of_two() in zone_batchsize()
From: David Howells <dhowells@xxxxxxxxxx>
Use roundown_pow_of_two(N) in zone_batchsize() rather than (1 <<
(fls(N)-1)) as they are equivalent, and with the former it is easier to
see what is going on.
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Tested-by: Lanttor Guo <lanttor.guo@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/page_alloc.c~mm-use-roundown_pow_of_two-in-zone_batchsize mm/page_alloc.c
--- a/mm/page_alloc.c~mm-use-roundown_pow_of_two-in-zone_batchsize
+++ a/mm/page_alloc.c
@@ -2706,7 +2706,7 @@ static int zone_batchsize(struct zone *z
* of pages of one half of the possible page colors
* and the other with pages of the other colors.
*/
- batch = (1 << (fls(batch + batch/2)-1)) - 1;
+ batch = rounddown_pow_of_two(batch + batch/2) - 1;
return batch;
}
_
Patches currently in -mm which might be from dhowells@xxxxxxxxxx are
origin.patch
linux-next.patch
rxrpc-fix-error-handling-for-rxrpc_alloc_connection.patch
frv-remove-in-kernel-strace-code.patch
frv-implement-tif_notify_resume.patch
frv-dont-turn-on-tif_syscall_trace-unconditionally-in-syscall-prologue.patch
frv-implement-new-style-ptrace.patch
frv-duplicate-output_buffer-of-e03.patch
slow_work_thread-should-do-the-exclusive-wait.patch
rework-fix-is_single_threaded.patch
kmap_types-make-most-arches-use-generic-header-file.patch
flat-fix-data-sections-alignment.patch
ptrace-remove-pt_dtrace-from-avr32-mn10300-parisc-s390-sh-xtensa.patch
elf_core_dump-use-rcu_read_lock-to-access-real_parent.patch
mutex-subsystem-synchro-test-module.patch
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