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nfs: no PG_private waiters remain, remove waker

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Since commit 4f52b6bb ("NFS: Don't call COMMIT in ->releasepage()"),
no tasks wait on PagePrivate, so the wake introduced in commit 95905446
("NFS: avoid deadlocks with loop-back mounted NFS filesystems.") can
be removed.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Nicholas Piggin 2017-01-04 04:22:33 +10:00 committed by Anna Schumaker
parent 920b4530fb
commit 600424e3d9
1 changed files with 0 additions and 2 deletions
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2
fs/nfs/write.c
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@ -728,8 +728,6 @@ static void nfs_inode_remove_request(struct nfs_page *req)
if (likely(head->wb_page && !PageSwapCache(head->wb_page))) { if (likely(head->wb_page && !PageSwapCache(head->wb_page))) {
set_page_private(head->wb_page, 0); set_page_private(head->wb_page, 0);
ClearPagePrivate(head->wb_page); ClearPagePrivate(head->wb_page);
smp_mb__after_atomic();
wake_up_page(head->wb_page, PG_private);
clear_bit(PG_MAPPED, &head->wb_flags); clear_bit(PG_MAPPED, &head->wb_flags);
} }
nfsi->nrequests--; nfsi->nrequests--;