Robert Jennings 939b3f0b14 zram/xvmalloc: combine duplicate block delete code ...

This patch eliminates duplicate code.  The remove_block_head function
is a special case of remove_block which can be contained in remove_block
without confusion.

The portion of code in remove_block_head which was noted as "DEBUG ONLY"
is now mandatory.  Doing this provides consistent management of the double
linked list of blocks under a freelist and makes this consolidation
of delete block code safe.  The first and last blocks will have NULL
pointers in their previous and next page pointers respectively.

Additionally, any time a block is removed from a free list the next and
previous pointers will be set to NULL to avoid misuse outside xvmalloc.

Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Acked-by: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2011-02-04 13:29:12 -08:00

..

Kconfig

zram/xvmalloc: create CONFIG_ZRAM_DEBUG for debug code

2011-02-04 13:29:11 -08:00

Makefile

Staging: zram: Makefile: replace the use of <module>-objs with <module>-y

2010-10-08 07:23:41 -07:00

xvmalloc_int.h

zram/xvmalloc: Close 32byte hole on 64bit CPUs

2011-02-04 13:29:11 -08:00

xvmalloc.c

zram/xvmalloc: combine duplicate block delete code

2011-02-04 13:29:12 -08:00

xvmalloc.h

Staging: Rename ramzswap files to zram

2010-06-18 12:46:42 -07:00

zram_drv.c

zram: Return zero'd pages on new reads

2011-02-04 13:29:12 -08:00

zram_drv.h

zram: Prevent overflow in logical block size

2011-02-04 13:29:11 -08:00

zram_sysfs.c

Staging: zram: round up the disk size provided by user

2011-01-20 16:06:18 -08:00

zram.txt

Staging: zram: Update zram documentation

2010-08-31 15:36:36 -07:00