4 Commits

Author	SHA1	Message	Date
Artem Bityutskiy	ccb3eba724	UBIFS: check data CRC when in error state ... When UBIFS switches to R/O mode because of an error, it is reasonable to enable data CRC checking. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>	2008-09-30 11:12:57 +03:00
Adrian Hunter	2953e73f1c	UBIFS: add no_chk_data_crc mount option ... UBIFS read performance can be improved by skipping the CRC check when data nodes are read. This option can be used if the underlying media is considered to be highly reliable. Note that CRCs are always checked for metadata. Read speed on Arm platform with OneNAND goes from 19 MiB/s to 27 MiB/s with data CRC checking disabled. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>	2008-09-30 11:12:56 +03:00
Adrian Hunter	ff46d7b3e0	UBIFS: make ubifs_ro_mode() not inline ... We use ubifs_ro_mode() quite a lot, and not in fast-path, so there is no reason to blow the code up by having it inlined. Also, we usually want R/O mode change to be seen to other CPUs as soon as possible, so when we make this a function call, we will automatically have a memory barrier. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>	2008-08-13 11:24:26 +03:00
Artem Bityutskiy	1e51764a3c	UBIFS: add new flash file system ... This is a new flash file system. See http://www.linux-mtd.infradead.org/doc/ubifs.html Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>	2008-07-15 17:35:15 +03:00