tree c6461c9d6981122e1507dafa0394901903eb2ca1
parent c12ec0a2d94001003dfb929ce14c287fca0522b0
author Edward Shishkin <edward.shishkin@gmail.com> 1268345387 -0800
committer Jens Axboe <jens.axboe@oracle.com> 1268384622 +0100

vfs: improve writeback_inodes_wb()

Do not pin/unpin superblock for every inode in writeback_inodes_wb(), pin
it for the whole group of inodes which belong to the same superblock and
call writeback_sb_inodes() handler for them.

Signed-off-by: Edward Shishkin <edward.shishkin@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>