tree 1afafa2a68eb71b702db0a24aff2feb52b9f56c7
parent d785a06a0b9d0cd86b3cc1bf8e236e62af7b47ed
author NeilBrown <neilb@suse.de> 1151306869 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1151341118 -0700

[PATCH] md: Change md/bitmap file handling to use bmap to file blocks-fix

Fix problems with new bmap based access to bitmap files.

1/ When not using a file based bitmap, attach a NULL list of buffers
   to each page so the common free_buffer routine can cope.
2/ Use submit_bh to read as well as write, rather than vfs_read.
   This makes read and write more symetric.
3/ sync the file before reading, to ensure that the page cache has no
   dirty pages that might get written out later.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>