From: Dmitry Monakhov <dmonakhov@openvz.org>
Date: Wed, 28 Aug 2013 18:30:47 +0000 (-0400)
Subject: ext4: convert write_begin methods to stable_page_writes semantics
X-Git-Tag: upstream/snapshot3+hdmi~4160^2~11
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7afe5aa59ed3da7b6161617e7f157c7c680dc41e;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

ext4: convert write_begin methods to stable_page_writes semantics

Use wait_for_stable_page() instead of wait_on_page_writeback()

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
---

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index fc4051e..47c8e46 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -969,7 +969,8 @@ retry_journal:
 		ext4_journal_stop(handle);
 		goto retry_grab;
 	}
-	wait_on_page_writeback(page);
+	/* In case writeback began while the page was unlocked */
+	wait_for_stable_page(page);
 
 	if (ext4_should_dioread_nolock(inode))
 		ret = __block_write_begin(page, pos, len, ext4_get_block_write);
@@ -2678,7 +2679,7 @@ retry_journal:
 		goto retry_grab;
 	}
 	/* In case writeback began while the page was unlocked */
-	wait_on_page_writeback(page);
+	wait_for_stable_page(page);
 
 	ret = __block_write_begin(page, pos, len, ext4_da_get_block_prep);
 	if (ret < 0) {