4 Commits

Author	SHA1	Message	Date
Joern Engel	6f485b4187	logfs: handle powerfail on NAND flash ... The write buffer may not have been written and may no longer be written due to an interrupted write in the affected page. Signed-off-by: Joern Engel <joern@logfs.org>	2010-05-07 19:38:40 +02:00
Dan Carpenter	ccf31c10f1	logfs: handle errors from get_mtd_device() ... The get_mtd_device() function returns error pointers on failure and if we don't handle it, it leads to a crash. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Joern Engel <joern@logfs.org>	2010-05-07 14:16:09 +02:00
Joern Engel	9421502b4f	[LogFS] Fix bdev erases ... Erases for block devices were always just emulated by writing 0xff. Some time back the write was removed and only the page cache was changed to 0xff. Superficialy a good idea with two problems: 1. Touching the page cache isn't necessary either. 2. However, writing out 0xff _is_ necessary for the journal. As the journal is scanned linearly, an old non-overwritten commit entry can be used on next mount and cause havoc. This should fix both aspects.	2010-03-04 21:30:58 +01:00
Joern Engel	5db53f3e80	[LogFS] add new flash file system ... This is a new flash file system. See Documentation/filesystems/logfs.txt Signed-off-by: Joern Engel <joern@logfs.org>	2009-11-20 20:13:39 +01:00