Commit 6e3647ac authored May 01, 2009 by Frederic Weisbecker

kill-the-BKL/reiserfs: release the write lock on flush_commit_list()

flush_commit_list() uses ll_rw_block() to commit the pending log blocks.
ll_rw_block() might sleep, and the bkl was released at this point. Then
we can also relax the write lock at this point.

[ Impact: release the reiserfs write lock when it is not needed ]

Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

parent 4c5eface

fs/reiserfs/journal.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -1120,8 +1120,11 @@ static int flush_commit_list(struct super_block *s,
		SB_ONDISK_JOURNAL_SIZE(s);
		tbh = journal_find_get_block(s, bn);
		if (tbh) {
		if (buffer_dirty(tbh))
		if (buffer_dirty(tbh)) {
		reiserfs_write_unlock(s);
		ll_rw_block(WRITE, 1, &tbh);
		reiserfs_write_lock(s);
		}
		put_bh(tbh) ;
		}
		}