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authorPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>2006-01-19 02:42:58 +0100
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-19 04:20:21 +0100
commitb63162939cd797c8269964ce856ed1f2fec5f70e (patch)
tree666dd2919bd156aa183a87576224d0fad3c4cf72 /arch/um/os-Linux/helper.c
parent[PATCH] uml: sigio code - reduce spinlock hold time (diff)
downloadlinux-b63162939cd797c8269964ce856ed1f2fec5f70e.tar.xz
linux-b63162939cd797c8269964ce856ed1f2fec5f70e.zip
[PATCH] uml: avoid malloc to sleep in atomic sections
Ugly trick to help make malloc not sleeping - we can't do anything else. But this is not yet optimal, since spinlock don't trigger in_atomic() when preemption is disabled. Also, even if ugly, this was already used in one place, and was even more bogus. Fix it. 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>
Diffstat (limited to 'arch/um/os-Linux/helper.c')
-rw-r--r--arch/um/os-Linux/helper.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/um/os-Linux/helper.c b/arch/um/os-Linux/helper.c
index 36cc8475bcda..6490a4ff40ac 100644
--- a/arch/um/os-Linux/helper.c
+++ b/arch/um/os-Linux/helper.c
@@ -60,7 +60,7 @@ int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv,
if((stack_out != NULL) && (*stack_out != 0))
stack = *stack_out;
- else stack = alloc_stack(0, um_in_interrupt());
+ else stack = alloc_stack(0, __cant_sleep());
if(stack == 0)
return(-ENOMEM);
@@ -124,7 +124,7 @@ int run_helper_thread(int (*proc)(void *), void *arg, unsigned int flags,
unsigned long stack, sp;
int pid, status, err;
- stack = alloc_stack(stack_order, um_in_interrupt());
+ stack = alloc_stack(stack_order, __cant_sleep());
if(stack == 0) return(-ENOMEM);
sp = stack + (page_size() << stack_order) - sizeof(void *);