From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Wed, 30 Apr 2014 00:18:53 +0000 (+0900)
Subject: f2fs: no need to wait on page writebck to meta pages
X-Git-Tag: firefly_0821_release~176^2~3802^2~20
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=bde446866c9200fcfa27ccde213d83db9a6827db;p=firefly-linux-kernel-4.4.55.git

f2fs: no need to wait on page writebck to meta pages

This patch removes grab_cache_page_write_begin for meta pages.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 1346ce916b84..4206f1664be5 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -33,12 +33,12 @@ struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index)
 	struct address_space *mapping = META_MAPPING(sbi);
 	struct page *page = NULL;
 repeat:
-	page = grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
+	page = grab_cache_page(mapping, index);
 	if (!page) {
 		cond_resched();
 		goto repeat;
 	}
-
+	f2fs_wait_on_page_writeback(page, META);
 	SetPageUptodate(page);
 	return page;
 }