From: David Sterba Date: Wed, 29 Mar 2017 18:48:44 +0000 (+0200) Subject: btrfs: use clear_page where appropriate X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=619a974292387343c817f5a36e9df6daeb3ccc60;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git btrfs: use clear_page where appropriate There's a helper to clear whole page, with a arch-specific optimized code. The replaced cases do not seem to be in performace critical code, but we still might get some percent gain. Signed-off-by: David Sterba --- diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index da6841efac26..c5e6180cdb8c 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -355,7 +355,7 @@ static void io_ctl_map_page(struct btrfs_io_ctl *io_ctl, int clear) io_ctl->orig = io_ctl->cur; io_ctl->size = PAGE_SIZE; if (clear) - memset(io_ctl->cur, 0, PAGE_SIZE); + clear_page(io_ctl->cur); } static void io_ctl_drop_pages(struct btrfs_io_ctl *io_ctl) diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index c4d1e60e831e..48dd6f170c36 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -1643,7 +1643,7 @@ static int scrub_write_page_to_dev_replace(struct scrub_block *sblock, if (spage->io_error) { void *mapped_buffer = kmap_atomic(spage->page); - memset(mapped_buffer, 0, PAGE_SIZE); + clear_page(mapped_buffer); flush_dcache_page(spage->page); kunmap_atomic(mapped_buffer); }