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David Howells 6e232cfce3 NOMMU: Add support for direct mapping through mtdconcat if possible 
Add support for direct mapping through mtdconcat, if possible, by attaching the
samebacking_dev_info structure to the master.

It has some restrictions:

 (1) It won't permit direct mapping of concatenated devices that have differing
     BDIs.

 (2) It doesn't support maps that span the 'gap' between devices, although it
     possibly could if the devices spanned across return compatible
     (ie. contiguous) addresses from their get_unmapped_area() ops.

Signed-off-by: Gavin Lambert <gavinl@compacsort.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
 		2009-03-24 09:01:08 +00:00
..
chips NOMMU: Present backing device capabilities for MTD chardevs 2009-03-24 09:00:19 +00:00
devices NOMMU: Present backing device capabilities for MTD chardevs 2009-03-24 09:00:19 +00:00
lpddr [MTD] [LPDDR] qinfo_probe depends on lpddr 2009-01-11 10:42:32 +00:00
maps [MTD] RBTX4939 map driver 2009-03-20 18:11:20 +00:00
nand [MTD] [NAND] pxa3xx_nand: add ability to keep controller settings defined by OBM/bootloader 2009-03-20 18:37:44 +00:00
onenand [MTD] [OneNAND] Add write-while-program support 2009-03-23 15:14:46 +00:00
tests [MTD] [TESTS] Fix some size_t printk format warnings 2009-01-05 16:31:03 +00:00
ubi UBI: allow direct user-space I/O 2009-01-27 16:54:41 +02:00
Kconfig Merge branch 'master' of git://git.infradead.org/users/dedekind/mtd-tests-2.6 2009-01-05 16:24:55 +00:00
Makefile NOMMU: Present backing device capabilities for MTD chardevs 2009-03-24 09:00:19 +00:00
afs.c MTD/JFFS2: remove CVS keywords 2008-06-04 17:50:17 +01:00
ar7part.c [MTD] mtdpart: Make all partition parsers return allocated array 2009-03-20 18:55:17 +00:00
cmdlinepart.c [MTD] mtdpart: Make all partition parsers return allocated array 2009-03-20 18:55:17 +00:00
ftl.c [MTD] Remove strange u_int32_t types from FTL 2008-12-10 14:06:42 +00:00
inftlcore.c [MTD] update internal API to support 64-bit device size 2008-12-10 13:37:21 +00:00
inftlmount.c [MTD] we don't need no misc devices 2009-03-20 13:16:26 +00:00
internal.h NOMMU: Present backing device capabilities for MTD chardevs 2009-03-24 09:00:19 +00:00
mtd_blkdevs.c [PATCH] switch mtd_blkdevs 2008-10-21 07:48:38 -04:00
mtdbdi.c NOMMU: Present backing device capabilities for MTD chardevs 2009-03-24 09:00:19 +00:00
mtdblock.c MTD/JFFS2: remove CVS keywords 2008-06-04 17:50:17 +01:00
mtdblock_ro.c MTD/JFFS2: remove CVS keywords 2008-06-04 17:50:17 +01:00
mtdchar.c NOMMU: Present backing device capabilities for MTD chardevs 2009-03-24 09:00:19 +00:00
mtdconcat.c NOMMU: Add support for direct mapping through mtdconcat if possible 2009-03-24 09:01:08 +00:00
mtdcore.c NOMMU: Present backing device capabilities for MTD chardevs 2009-03-24 09:00:19 +00:00
mtdcore.h [MTD] mtdcore.c: share syms with mtd_blkdev.c 2007-06-28 20:24:50 +01:00
mtdoops.c [MTD] mtdoops: fix a bit of spin lock usage 2009-03-20 18:39:25 +00:00
mtdpart.c NOMMU: Present backing device capabilities for MTD chardevs 2009-03-24 09:00:19 +00:00
mtdsuper.c [MTD] Fix !CONFIG_BLOCK compile for mtdsuper.c 2008-08-02 07:52:39 +01:00
nftlcore.c [MTD] Auto-load nftl module when device opened. 2009-03-20 18:34:00 +00:00
nftlmount.c [MTD] update internal API to support 64-bit device size 2008-12-10 13:37:21 +00:00
ofpart.c [MTD] remove unused mtd parameter in of_mtd_parse_partitions() 2008-10-13 15:01:42 +01:00
redboot.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-07-11 14:36:25 +01:00
rfd_ftl.c [MTD] remove private wrapper of endian helpers in rfd_ftl.c 2008-12-10 15:39:09 +00:00
ssfdc.c [MTD] update internal API to support 64-bit device size 2008-12-10 13:37:21 +00:00