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authorWeston Andros Adamson <dros@primarydata.com>2014-08-08 11:00:53 -0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2014-08-22 18:04:42 -0400
commitfd2f3a06d30c85a17cf035ebc60c88c2a13a8ece (patch)
tree70df5514d2897bc7fb7fd6698acef33860b7b569 /fs
parent451fd72219dd6f3355e2d036c598544c760ee532 (diff)
downloadlinux-stericsson-fd2f3a06d30c85a17cf035ebc60c88c2a13a8ece.tar.gz
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: Weston Andros Adamson <dros@primarydata.com> Reviewed-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/pagelist.c11
-rw-r--r--fs/nfs/write.c4
2 files changed, 8 insertions, 7 deletions
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index ba491926df5f..7efa61586bc4 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -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;
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index e3b5cf28bdc5..27715306f24b 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -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 @@ try_again:
}
/* 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;