tree 6823261d0e111a93c5190ebb1f2ecd8c4905a559
parent bfb39fba4e8cdda091f9ebee29fbb8331c4bb605
author NeilBrown <neilb@cse.unsw.edu.au> 1119399441 -0700
committer Linus Torvalds <torvalds@ppc970.osdl.org> 1119406065 -0700

[PATCH] md: enable the bitmap write-back daemon and wait for it.

Currently we don't wait for updates to the bitmap to be flushed to disk
properly.  The infrastructure all there, but it isn't being used....

A separate kernel thread (bitmap_writeback_daemon) is needed to wait for each
page as we cannot get callbacks when a page write completes.

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>