[PATCH] fs: cifs: transport: Use time_after for time comparison

From: Karim Eshapa
Date: Thu May 11 2017 - 19:54:01 EST


Use time_after kernel macro for time comparison
that has safety check.

Signed-off-by: Karim Eshapa <karim.eshapa@xxxxxxxxx>
---
fs/cifs/transport.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 4d64b5b..a7f5168 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -94,7 +94,7 @@ DeleteMidQEntry(struct mid_q_entry *midEntry)
now = jiffies;
/* commands taking longer than one second are indications that
something is wrong, unless it is quite a slow link or server */
- if ((now - midEntry->when_alloc) > HZ) {
+ if (time_after(now, midEntry->when_alloc + HZ)) {
if ((cifsFYI & CIFS_TIMER) && (midEntry->command != command)) {
pr_debug(" CIFS slow rsp: cmd %d mid %llu",
midEntry->command, midEntry->mid);
--
2.7.4