Messages in this thread Patch in this message | | | From | wonder_rock@126 ... | Subject | [PATCH] pstore/ram: Use reminder directly | Date | Mon, 24 Jan 2022 22:42:47 +0800 |
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From: Deyan Wang <wonder_rock@126.com>
The remainder is more efficient, we directly use the remainder.
Signed-off-by: Deyan Wang <wonder_rock@126.com> --- fs/pstore/ram_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c index fe5305028c6e..69928a59e28b 100644 --- a/fs/pstore/ram_core.c +++ b/fs/pstore/ram_core.c @@ -61,8 +61,8 @@ static size_t buffer_start_add(struct persistent_ram_zone *prz, size_t a) old = atomic_read(&prz->buffer->start); new = old + a; - while (unlikely(new >= prz->buffer_size)) - new -= prz->buffer_size; + if (unlikely(new >= prz->buffer_size)) + new %= prz->buffer_size; atomic_set(&prz->buffer->start, new); if (!(prz->flags & PRZ_FLAG_NO_LOCK)) -- 2.25.1
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