diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/write.c | 30 |
1 files changed, 10 insertions, 20 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c index b1af5dee5e0a..1d447e37f472 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -366,7 +366,6 @@ nfs_page_group_clear_bits(struct nfs_page *req) * @inode - inode associated with request page group, must be holding inode lock * @head - head request of page group, must be holding head lock * @req - request that couldn't lock and needs to wait on the req bit lock - * @nonblock - if true, don't actually wait * * NOTE: this must be called holding page_group bit lock and inode spin lock * and BOTH will be released before returning. @@ -375,7 +374,7 @@ nfs_page_group_clear_bits(struct nfs_page *req) */ static int nfs_unroll_locks_and_wait(struct inode *inode, struct nfs_page *head, - struct nfs_page *req, bool nonblock) + struct nfs_page *req) __releases(&inode->i_lock) { struct nfs_page *tmp; @@ -396,10 +395,7 @@ nfs_unroll_locks_and_wait(struct inode *inode, struct nfs_page *head, /* release ref from nfs_page_find_head_request_locked */ nfs_release_request(head); - if (!nonblock) - ret = nfs_wait_on_request(req); - else - ret = -EAGAIN; + ret = nfs_wait_on_request(req); nfs_release_request(req); return ret; @@ -464,7 +460,6 @@ nfs_destroy_unlinked_subrequests(struct nfs_page *destroy_list, * operations for this page. * * @page - the page used to lookup the "page group" of nfs_page structures - * @nonblock - if true, don't block waiting for request locks * * This function joins all sub requests to the head request by first * locking all requests in the group, cancelling any pending operations @@ -478,7 +473,7 @@ nfs_destroy_unlinked_subrequests(struct nfs_page *destroy_list, * error was encountered. */ static struct nfs_page * -nfs_lock_and_join_requests(struct page *page, bool nonblock) +nfs_lock_and_join_requests(struct page *page) { struct inode *inode = page_file_mapping(page)->host; struct nfs_page *head, *subreq; @@ -511,14 +506,9 @@ try_again: if (ret < 0) { spin_unlock(&inode->i_lock); - if (!nonblock && ret == -EAGAIN) { - nfs_page_group_lock_wait(head); - nfs_release_request(head); - goto try_again; - } - + nfs_page_group_lock_wait(head); nfs_release_request(head); - return ERR_PTR(ret); + goto try_again; } /* lock each request in the page group */ @@ -543,7 +533,7 @@ try_again: /* releases page group bit lock and * inode spin lock and all references */ ret = nfs_unroll_locks_and_wait(inode, head, - subreq, nonblock); + subreq); if (ret == 0) goto try_again; @@ -624,12 +614,12 @@ nfs_error_is_fatal_on_server(int err) * May return an error if the user signalled nfs_wait_on_request(). */ static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio, - struct page *page, bool nonblock) + struct page *page) { struct nfs_page *req; int ret = 0; - req = nfs_lock_and_join_requests(page, nonblock); + req = nfs_lock_and_join_requests(page); if (!req) goto out; ret = PTR_ERR(req); @@ -672,7 +662,7 @@ static int nfs_do_writepage(struct page *page, struct writeback_control *wbc, int ret; nfs_pageio_cond_complete(pgio, page_index(page)); - ret = nfs_page_async_flush(pgio, page, wbc->sync_mode == WB_SYNC_NONE); + ret = nfs_page_async_flush(pgio, page); if (ret == -EAGAIN) { redirty_page_for_writepage(wbc, page); ret = 0; @@ -2015,7 +2005,7 @@ int nfs_wb_page_cancel(struct inode *inode, struct page *page) /* blocking call to cancel all requests and join to a single (head) * request */ - req = nfs_lock_and_join_requests(page, false); + req = nfs_lock_and_join_requests(page); if (IS_ERR(req)) { ret = PTR_ERR(req); |