diff options
| author | Andrew Morton <akpm@linux-foundation.org> | 2018-07-27 10:55:44 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2018-07-28 14:17:44 +1000 |
| commit | 6b2847d8711f9ae8cf9f6b12d3f0323e7671b5a2 (patch) | |
| tree | 1fd365973ccd8eeb3f43c09a012f4bb961298089 /tools | |
| parent | 9e510dfdc3cf1d38e357469b295daabdf566c060 (diff) | |
| download | linux-next-6b2847d8711f9ae8cf9f6b12d3f0323e7671b5a2.tar.gz | |
tools-adding-support-for-idle-page-tracking-to-tool-fix
simplify mark_page_idle()
Cc: Christian Hansen <chansen3@cisco.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/vm/page-types.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c index 30cb0a0713ff..be54c2b43eac 100644 --- a/tools/vm/page-types.c +++ b/tools/vm/page-types.c @@ -597,21 +597,15 @@ static int mark_page_idle(unsigned long offset) static uint64_t buf; int len; - if ((offset / 64 == off / 64) || buf == 0) { - buf |= 1UL << (offset % 64); - off = offset; - return 0; - } - - len = pwrite(page_idle_fd, &buf, 8, 8 * (off / 64)); - if (len < 0) { - perror("mark page idle"); - return len; + if ((offset / 64 != off / 64) && buf != 0) { + len = pwrite(page_idle_fd, &buf, 8, 8 * (off / 64)); + if (len < 0) { + perror("mark page idle"); + return len; + } } - buf = 1UL << (offset % 64); off = offset; - return 0; } |