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 <dste...@suse.com>
---
fs/btrfs/free-space-cache.c | 2 +-
fs/btrfs/scrub.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
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 b0251eb1239f..08ae2331d402 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -1634,7 +1634,7 @@ 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);
}
--
2.12.0
--
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