From: Theodore Ts'o Subject: [PATCH 3/3 -v2] ext4: mark metadata blocks using bh flags Date: Sun, 21 Apr 2013 16:48:48 -0400 Message-ID: <20130421204848.GB13543@thunk.org> References: <20130421000522.GA5054@thunk.org> <1366502828-7793-1-git-send-email-tytso@mit.edu> <1366502828-7793-3-git-send-email-tytso@mit.edu> <5173828A.2030809@suse.cz> <20130421195534.GA13543@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: Jiri Slaby , Ext4 Developers List , linux-mm@kvack.org, Linux Kernel Developers List , mgorman@suse.de Return-path: Content-Disposition: inline In-Reply-To: <20130421195534.GA13543@thunk.org> Sender: owner-linux-mm@kvack.org List-Id: linux-ext4.vger.kernel.org Whoops, here's the right version of the patch. >From 13fca323e9a8b63c08de7a4e05d3c702516b535d Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sun, 21 Apr 2013 16:45:54 -0400 Subject: [PATCH 3/3] ext4: mark metadata blocks using bh flags This allows metadata writebacks which are issued via block device writeback to be sent with the current write request flags. Signed-off-by: "Theodore Ts'o" --- fs/ext4/ext4_jbd2.c | 2 ++ fs/ext4/inode.c | 6 +++++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c index 0e1dc9e..451eb40 100644 --- a/fs/ext4/ext4_jbd2.c +++ b/fs/ext4/ext4_jbd2.c @@ -215,6 +215,8 @@ int __ext4_handle_dirty_metadata(const char *where, unsigned int line, might_sleep(); + set_buffer_meta(bh); + set_buffer_prio(bh); if (ext4_handle_valid(handle)) { err = jbd2_journal_dirty_metadata(handle, bh); if (err) { diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 62492e9..d7518e2 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1080,10 +1080,14 @@ retry_journal: /* For write_end() in data=journal mode */ static int write_end_fn(handle_t *handle, struct buffer_head *bh) { + int ret; if (!buffer_mapped(bh) || buffer_freed(bh)) return 0; set_buffer_uptodate(bh); - return ext4_handle_dirty_metadata(handle, NULL, bh); + ret = ext4_handle_dirty_metadata(handle, NULL, bh); + clear_buffer_meta(bh); + clear_buffer_prio(bh); + return ret; } /* -- 1.7.12.rc0.22.gcdd159b -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org