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| author | Jan Beulich <JBeulich@novell.com> | 2010-10-26 14:22:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-26 16:52:13 -0700 |
| commit | 3ecb01df3261d3b1f02ccfcf8384e2a255d2a1d0 (patch) | |
| tree | 1fe91114d8829a511db48d757c787cfede3b929c /kernel/power/swap.c | |
| parent | b6472776816af1ed52848c93d26e3edb3b17adab (diff) | |
| download | linux-3ecb01df3261d3b1f02ccfcf8384e2a255d2a1d0.tar.bz2 | |
use clear_page()/copy_page() in favor of memset()/memcpy() on whole pages
After all that's what they are intended for.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/power/swap.c')
| -rw-r--r-- | kernel/power/swap.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 916eaa790399..a0e4a86ccf94 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -251,7 +251,7 @@ static int write_page(void *buf, sector_t offset, struct bio **bio_chain) if (bio_chain) { src = (void *)__get_free_page(__GFP_WAIT | __GFP_HIGH); if (src) { - memcpy(src, buf, PAGE_SIZE); + copy_page(src, buf); } else { WARN_ON_ONCE(1); bio_chain = NULL; /* Go synchronous */ @@ -325,7 +325,7 @@ static int swap_write_page(struct swap_map_handle *handle, void *buf, error = write_page(handle->cur, handle->cur_swap, NULL); if (error) goto out; - memset(handle->cur, 0, PAGE_SIZE); + clear_page(handle->cur); handle->cur_swap = offset; handle->k = 0; } @@ -910,7 +910,7 @@ int swsusp_check(void) hib_resume_bdev = open_by_devnum(swsusp_resume_device, FMODE_READ); if (!IS_ERR(hib_resume_bdev)) { set_blocksize(hib_resume_bdev, PAGE_SIZE); - memset(swsusp_header, 0, PAGE_SIZE); + clear_page(swsusp_header); error = hib_bio_read_page(swsusp_resume_block, swsusp_header, NULL); if (error) |