Artem Bityutskiy e8823bd63d UBI: fix atomic LEB change problems ...

When the UBI device is nearly full, i.e. all LEBs are mapped, we have
only one spare LEB left - the one we reserved for WL purposes. Well,
I do not count the LEBs which were reserved for bad PEB handling -
suppose NOR flash for simplicity. If an "atomic LEB change operation"
is run, and the WL unit is moving a LEB, we have no spare LEBs to
finish the operation and fail, which is not good. Moreover, if there
are 2 or more simultanious "atomic LEB change" requests, only one of
them has chances to succeed, the other will fail with -ENOSPC. Not
good either.

This patch does 2 things:
1. Reserves one PEB for the "atomic LEB change" operation.
2. Serealize the operations so that only on of them may run
   at a time (by means of a mutex).

Pointed-to-by: Brijesh Singh <brijesh.s.singh@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

2007-10-14 13:10:21 +03:00

..

chips

[MTD] [CHIPS] Remove MTD_OBSOLETE_CHIPS (jedec, amd_flash, sharp)

2007-05-09 13:34:37 +01:00

devices

[MIPS] Remove Momentum Ocelot support.

2007-07-31 21:35:29 +01:00

maps

[ARM] 4554/1: replace consistent_sync() with flush_ioremap_region()

2007-08-23 12:31:31 +01:00

nand

pci: fix unterminated pci_device_id lists

2007-09-19 11:24:17 -07:00

onenand

Fix occurrences of "the the "

2007-05-09 08:57:56 +02:00

ubi

UBI: fix atomic LEB change problems

2007-10-14 13:10:21 +03:00

afs.c

[MTD] replace kmalloc+memset with kzalloc

2006-11-28 23:47:21 +00:00

cmdlinepart.c

[MTD] replace kmalloc+memset with kzalloc

2006-11-28 23:47:21 +00:00

ftl.c

[PATCH] remove many unneeded #includes of sched.h

2007-02-14 08:09:54 -08:00

inftlcore.c

[MTD] replace kmalloc+memset with kzalloc

2006-11-28 23:47:21 +00:00

inftlmount.c

PCI: Cleanup the includes of <linux/pci.h>

2007-05-02 19:02:35 -07:00

Kconfig

[S390] Kconfig: menus with depends on HAS_IOMEM.

2007-05-10 15:46:07 +02:00

Makefile

[MTD] Makefile fix for mtdsuper

2007-08-03 12:42:40 +01:00

mtd_blkdevs.c

Freezer: make kernel threads nonfreezable by default

2007-07-17 10:23:02 -07:00

mtdblock_ro.c

[MTD] replace kmalloc+memset with kzalloc

2006-11-28 23:47:21 +00:00

mtdblock.c

[MTD] replace kmalloc+memset with kzalloc

2006-11-28 23:47:21 +00:00

mtdchar.c

mtdchar build fix

2007-08-11 15:47:41 -07:00

mtdconcat.c

[MTD] [NAND] make oobavail public

2007-03-08 09:17:43 +00:00

mtdcore.c

[PATCH] remove many unneeded #includes of sched.h

2007-02-14 08:09:54 -08:00

mtdpart.c

[MTD] Makefile fix for mtdsuper

2007-08-03 12:42:40 +01:00

mtdsuper.c

[MTD] Initialise s_flags in get_sb_mtd_aux()

2007-09-02 18:18:46 +01:00

nftlcore.c

PCI: Cleanup the includes of <linux/pci.h>

2007-05-02 19:02:35 -07:00

nftlmount.c

[MTD] Rework the out of band handling completely

2006-05-29 15:06:51 +02:00

redboot.c

[MTD] Improve heuristic for detecting wrong-endian RedBoot partition table

2007-02-10 09:58:31 +00:00

rfd_ftl.c

[MTD] Fix potential leak in rfd_ftl_add_mtd

2007-08-02 21:44:10 +01:00

ssfdc.c

[MTD] Fix ssfdc blksize typo

2006-12-11 09:43:38 +00:00