Commit dee83046 authored by Trond Myklebust's avatar Trond Myklebust

NFS: Remove unuse function nfs_page_group_lock_wait()

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent 902a4c00
...@@ -165,27 +165,6 @@ nfs_page_group_lock(struct nfs_page *req, bool nonblock) ...@@ -165,27 +165,6 @@ nfs_page_group_lock(struct nfs_page *req, bool nonblock)
return -EAGAIN; 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 * nfs_page_group_unlock - unlock the head of the page group
* @req - request in group that is to be unlocked * @req - request in group that is to be unlocked
......
...@@ -140,7 +140,6 @@ extern int nfs_wait_on_request(struct nfs_page *); ...@@ -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_request(struct nfs_page *req);
extern void nfs_unlock_and_release_request(struct nfs_page *); extern void nfs_unlock_and_release_request(struct nfs_page *);
extern int nfs_page_group_lock(struct nfs_page *, bool); 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 void nfs_page_group_unlock(struct nfs_page *);
extern bool nfs_page_group_sync_on_bit(struct nfs_page *, unsigned int); 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 *); extern bool nfs_async_iocounter_wait(struct rpc_task *, struct nfs_lock_context *);
......
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