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[PATCH] uml: memory hotplug cleanups 

Change memory hotplug to use GFP_NOWAIT instead of GFP_ATOMIC, so that it
will grab memory without sleeping, but doesn't try to use the emergency
pools.

A small list initialization suggested by Daniel Phillips - don't initialize
lists which are just about to be list_add-ed.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jeff Dike 2006-04-10 22:53:28 -07:00 committed by Linus Torvalds
parent 7b04d7170e
commit 60baa15839
1 changed files with 1 additions and 3 deletions
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4
arch/um/drivers/mconsole_kern.c
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@ -87,7 +87,7 @@ static irqreturn_t mconsole_interrupt(int irq, void *dev_id,
if(req.cmd->context == MCONSOLE_INTR)
(*req.cmd->handler)(&req);
else {
new = kmalloc(sizeof(*new), GFP_ATOMIC);
new = kmalloc(sizeof(*new), GFP_NOWAIT);
if(new == NULL)
mconsole_reply(&req, "Out of memory", 1, 0);
else {
@ -415,7 +415,6 @@ static int mem_config(char *str)
unplugged = page_address(page);
if(unplug_index == UNPLUGGED_PER_PAGE){
INIT_LIST_HEAD(&unplugged->list);
list_add(&unplugged->list, &unplugged_pages);
unplug_index = 0;
}
@ -655,7 +654,6 @@ static void with_console(struct mc_request *req, void (*proc)(void *),
struct mconsole_entry entry;
unsigned long flags;
INIT_LIST_HEAD(&entry.list);
entry.request = *req;
list_add(&entry.list, &clients);
spin_lock_irqsave(&console_lock, flags);