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authorNicholas Piggin <npiggin@gmail.com>2017-02-22 15:44:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 16:41:29 -0800
commitd94e0c05eba9ed627ce467a7c3e92b365269f905 (patch)
treeaf2c18d5360a60f5c311b0f4a003925ae095c59b
parent93607e5a554a6408a1b56cdd146edc91e5da9983 (diff)
downloadlinux-d94e0c05eba9ed627ce467a7c3e92b365269f905.tar.bz2
nfs: no PG_private waiters remain, remove waker
Since commit 4f52b6bb8c57 ("NFS: Don't call COMMIT in ->releasepage()"), no tasks wait on PagePrivate. Thus the wake introduced in commit 9590544694be ("NFS: avoid deadlocks with loop-back mounted NFS filesystems.") can be removed. Link: http://lkml.kernel.org/r/20170103182234.30141-2-npiggin@gmail.com Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Cc: Trond Myklebust <trond.myklebust@primarydata.com> Cc: Anna Schumaker <anna.schumaker@netapp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/nfs/write.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index b00d53d13d47..006068526542 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -728,8 +728,6 @@ static void nfs_inode_remove_request(struct nfs_page *req)
if (likely(head->wb_page && !PageSwapCache(head->wb_page))) {
set_page_private(head->wb_page, 0);
ClearPagePrivate(head->wb_page);
- smp_mb__after_atomic();
- wake_up_page(head->wb_page, PG_private);
clear_bit(PG_MAPPED, &head->wb_flags);
}
nfsi->nrequests--;