Commit fd2f3a06 authored by Weston Andros Adamson's avatar Weston Andros Adamson Committed by Trond Myklebust
Browse files

nfs: change nfs_page_group_lock argument



Flip the meaning of the second argument from 'wait' to 'nonblock' to
match related functions. Update all five calls to reflect this change.
Signed-off-by: default avatarWeston Andros Adamson <dros@primarydata.com>
Reviewed-by: default avatarPeng Tao <tao.peng@primarydata.com>
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent 451fd722
......@@ -139,13 +139,14 @@ nfs_iocounter_wait(struct nfs_io_counter *c)
/*
* nfs_page_group_lock - lock the head of the page group
* @req - request in group that is to be locked
* @nonblock - if true don't block waiting for lock
*
* this lock must be held if modifying the page group list
*
* returns result from wait_on_bit_lock: 0 on success, < 0 on error
*/
int
nfs_page_group_lock(struct nfs_page *req, bool wait)
nfs_page_group_lock(struct nfs_page *req, bool nonblock)
{
struct nfs_page *head = req->wb_head;
int ret;
......@@ -155,7 +156,7 @@ nfs_page_group_lock(struct nfs_page *req, bool wait)
do {
ret = wait_on_bit_lock(&head->wb_flags, PG_HEADLOCK,
TASK_UNINTERRUPTIBLE);
} while (wait && ret != 0);
} while (!nonblock && ret != 0);
WARN_ON_ONCE(ret > 0);
return ret;
......@@ -219,7 +220,7 @@ bool nfs_page_group_sync_on_bit(struct nfs_page *req, unsigned int bit)
{
bool ret;
nfs_page_group_lock(req, true);
nfs_page_group_lock(req, false);
ret = nfs_page_group_sync_on_bit_locked(req, bit);
nfs_page_group_unlock(req);
......@@ -860,7 +861,7 @@ static int __nfs_pageio_add_request(struct nfs_pageio_descriptor *desc,
unsigned int offset, pgbase;
int ret;
ret = nfs_page_group_lock(req, false);
ret = nfs_page_group_lock(req, true);
if (ret < 0) {
desc->pg_error = ret;
return 0;
......@@ -886,7 +887,7 @@ static int __nfs_pageio_add_request(struct nfs_pageio_descriptor *desc,
if (desc->pg_recoalesce)
return 0;
/* retry add_request for this subreq */
ret = nfs_page_group_lock(req, false);
ret = nfs_page_group_lock(req, true);
if (ret < 0) {
desc->pg_error = ret;
return 0;
......
......@@ -241,7 +241,7 @@ static bool nfs_page_group_covers_page(struct nfs_page *req)
unsigned int pos = 0;
unsigned int len = nfs_page_length(req->wb_page);
nfs_page_group_lock(req, true);
nfs_page_group_lock(req, false);
do {
tmp = nfs_page_group_search_locked(req->wb_head, pos);
......@@ -479,7 +479,7 @@ nfs_lock_and_join_requests(struct page *page, bool nonblock)
}
/* lock each request in the page group */
ret = nfs_page_group_lock(head, false);
ret = nfs_page_group_lock(head, true);
if (ret < 0)
return ERR_PTR(ret);
subreq = head;
......
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