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Commit dee83046 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFS: Remove unuse function nfs_page_group_lock_wait() 



Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent 902a4c00

fs/nfs/pagelist.c

+0 −21
Original line number Diff line number Diff line
@@ -165,27 +165,6 @@ nfs_page_group_lock(struct nfs_page *req, bool nonblock) 
	return -EAGAIN;

}



/*

 * nfs_page_group_lock_wait - wait for the lock to clear, but don't grab it

 * @req - a request in the group

 *

 * This is a blocking call to wait for the group lock to be cleared.

 */

void

nfs_page_group_lock_wait(struct nfs_page *req)

{

	struct nfs_page *head = req->wb_head;



	WARN_ON_ONCE(head != head->wb_head);



	if (!test_bit(PG_HEADLOCK, &head->wb_flags))

		return;

	set_bit(PG_CONTENDED1, &head->wb_flags);

	smp_mb__after_atomic();

	wait_on_bit(&head->wb_flags, PG_HEADLOCK,

		TASK_UNINTERRUPTIBLE);

}



/*

 * nfs_page_group_unlock - unlock the head of the page group

 * @req - request in group that is to be unlocked

include/linux/nfs_page.h

+0 −1
Original line number Diff line number Diff line
@@ -140,7 +140,6 @@ extern int nfs_wait_on_request(struct nfs_page *); 
extern	void nfs_unlock_request(struct nfs_page *req);

extern	void nfs_unlock_and_release_request(struct nfs_page *);

extern int nfs_page_group_lock(struct nfs_page *, bool);

extern void nfs_page_group_lock_wait(struct nfs_page *);

extern void nfs_page_group_unlock(struct nfs_page *);

extern bool nfs_page_group_sync_on_bit(struct nfs_page *, unsigned int);

extern bool nfs_async_iocounter_wait(struct rpc_task *, struct nfs_lock_context *);