]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] bitmap: region multiword spanning support
authorPaul Mundt <lethal@linux-sh.org>
Fri, 24 Mar 2006 11:15:45 +0000 (03:15 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Fri, 24 Mar 2006 15:33:20 +0000 (07:33 -0800)
commit74373c6acc52450ced28780d5fece60f1d7d20aa
tree6717fce7fdebbda48ad62b79b4ff721fae1c8dc3
parent87e24802586333fa861861f6493c76039872755b
[PATCH] bitmap: region multiword spanning support

Add support to the lib/bitmap.c bitmap_*_region() routines

For bitmap regions larger than one word (nbits > BITS_PER_LONG).  This removes
a BUG_ON() in lib bitmap.

I have an updated store queue API for SH that is currently using this with
relative success, and at first glance, it seems like this could be useful for
x86 (arch/i386/kernel/pci-dma.c) as well.  Particularly for anything using
dma_declare_coherent_memory() on large areas and that attempts to allocate
large buffers from that space.

Paul Jackson also did some cleanup to this patch.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
lib/bitmap.c