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Artem Bityutskiy 963f0cf6d1 UBIFS: add R/O compatibility 
Now UBIFS is supported by u-boot. If we ever decide to change the
media format, then people will have to upgrade their u-boots to
mount new format images. However, very often it is possible to
preserve R/O forward-compatibility, even though the write
forward-compatibility is not preserved.

This patch introduces a new super-block field which stores the
R/O compatibility version.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Acked-by: Adrian Hunter <Adrian.Hunter@nokia.com>
2009-03-26 16:36:20 +02:00
..
budget.c UBIFS: fix commentaries 2009-03-20 19:11:12 +02:00
commit.c UBIFS: separate debugging fields out 2008-12-03 13:14:33 +02:00
compress.c UBIFS: fix sparse warnings 2008-12-31 14:13:24 +02:00
debug.c UBIFS: fix commentaries 2009-03-20 19:11:12 +02:00
debug.h UBIFS: add re-mount debugging checks 2009-01-26 12:54:11 +02:00
dir.c UBIFS: simplify locking 2009-01-26 12:54:11 +02:00
file.c UBIFS: fix commentaries 2009-03-20 19:11:12 +02:00
find.c UBIFS: improve find function interface 2009-03-08 13:29:09 +02:00
gc.c UBIFS: fully sort GCed nodes 2009-03-20 19:12:00 +02:00
io.c UBIFS: fix no_chk_data_crc 2009-01-27 16:25:10 +02:00
ioctl.c UBIFS: fix writing uncompressed files 2008-12-31 14:13:25 +02:00
journal.c UBIFS: fix commentaries 2009-03-20 19:11:12 +02:00
Kconfig trivial: fix then -> than typos in comments and documentation 2009-01-06 11:28:06 +01:00
key.h UBIFS: amend key_hash return value 2009-03-08 13:29:41 +02:00
log.c UBIFS: fix commentaries 2009-03-20 19:11:12 +02:00
lprops.c UBIFS: add re-mount debugging checks 2009-01-26 12:54:11 +02:00
lpt.c UBIFS: use nicer 64-bit math 2008-12-23 12:23:40 +02:00
lpt_commit.c UBIFS: fix commentaries 2009-03-20 19:11:12 +02:00
Makefile
master.c UBIFS: return sensible error codes 2009-01-29 16:22:54 +02:00
misc.h UBIFS: inline one-line functions 2008-09-30 11:12:56 +03:00
orphan.c UBIFS: ensure orphan area head is initialized 2009-01-26 12:54:11 +02:00
recovery.c UBIFS: fix compilation warnings 2008-11-06 11:06:31 +02:00
replay.c UBIFS: fix commentaries 2009-03-20 19:11:12 +02:00
sb.c UBIFS: add R/O compatibility 2009-03-26 16:36:20 +02:00
scan.c UBIFS: add no_chk_data_crc mount option 2008-09-30 11:12:56 +03:00
shrinker.c UBIFS: list usage cleanup 2009-02-17 12:45:22 +02:00
super.c UBIFS: add R/O compatibility 2009-03-26 16:36:20 +02:00
tnc.c UBIFS: fix commentaries 2009-03-20 19:11:12 +02:00
tnc_commit.c UBIFS: re-calculate min_idx_size after the commit 2008-12-23 12:24:05 +02:00
tnc_misc.c UBIFS: correct key comparison 2008-09-30 11:12:57 +03:00
ubifs-media.h UBIFS: add R/O compatibility 2009-03-26 16:36:20 +02:00
ubifs.h UBIFS: add R/O compatibility 2009-03-26 16:36:20 +02:00
xattr.c UBIFS: remove unneeded unlikely() 2008-09-30 11:12:55 +03:00