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authorMatthew Wilcox <willy@infradead.org>2018-07-11 14:02:20 -0700
committerDominique Martinet <dominique.martinet@cea.fr>2018-08-13 09:21:44 +0900
commit2d58f63f72f28ba297a9ae344a5b5f0cf75bcd94 (patch)
tree736a539f4849260bf74f6c1d83817851443de068 /net
parent7913690dcc5e18e235769fd87c34143072f5dbea (diff)
9p: Fix comment on smp_wmb
The previous comment misled me into thinking the barrier wasn't needed at all. Link: http://lkml.kernel.org/r/20180711210225.19730-2-willy@infradead.org Signed-off-by: Matthew Wilcox <willy@infradead.org> Reviewed-by: Greg Kurz <groug@kaod.org> Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Ron Minnich <rminnich@sandia.gov> Cc: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
Diffstat (limited to 'net')
-rw-r--r--net/9p/client.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/9p/client.c b/net/9p/client.c
index dd461c718cf9..cae1fb43bd16 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -448,7 +448,7 @@ void p9_client_cb(struct p9_client *c, struct p9_req_t *req, int status)
/*
* This barrier is needed to make sure any change made to req before
- * the other thread wakes up will indeed be seen by the waiting side.
+ * the status change is visible to another thread
*/
smp_wmb();
req->status = status;