* [PATCH] fs: eventfd - Removed redundant initialization of res in BLOCKing mode
@ 2012-04-19 14:34 Sasikantha babu
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From: Sasikantha babu @ 2012-04-19 14:34 UTC (permalink / raw)
To: Alexander Viro; +Cc: linux-fsdevel, linux-kernel, Sasikantha babu
Removed redundant initialization of res to 0, since eventfd_write in
blocking mode guarantees res to be either sizeof(ucnt) or -ERESTARTSYS.
Signed-off-by: Sasikantha babu <sasikanth.v19@gmail.com>
---
fs/eventfd.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/eventfd.c b/fs/eventfd.c
index dba15fe..6bd051c 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -261,7 +261,7 @@ static ssize_t eventfd_write(struct file *file, const char __user *buf, size_t c
res = sizeof(ucnt);
else if (!(file->f_flags & O_NONBLOCK)) {
__add_wait_queue(&ctx->wqh, &wait);
- for (res = 0;;) {
+ for (;;) {
set_current_state(TASK_INTERRUPTIBLE);
if (ULLONG_MAX - ctx->count > ucnt) {
res = sizeof(ucnt);
--
1.7.3.4
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