]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] uml ubd driver: change ubd_lock to be a mutex
authorPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Tue, 31 Oct 2006 06:07:07 +0000 (22:07 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Tue, 31 Oct 2006 16:06:59 +0000 (08:06 -0800)
commitd7fb2c3865ca0f95d92e2864c3dc9220789d83f5
treeade46df79306ba0c5bea3449fe9a8ef66d25129b
parent5f75a4f887a35b99878fc07ed749a90375194b63
[PATCH] uml ubd driver: change ubd_lock to be a mutex

This lock protects ubd setup and teardown, so is only used in process context;
beyond that, during such setup memory allocations must be performed and some
generic functions which can sleep must be called (such as add_disk()).  So the
only correct solution is to make it a mutex instead of a spin_lock.  No other
change is done - this lock must be acquired in different places but it's done
afterwards.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/um/drivers/ubd_kern.c