* [PATCH] read_can_lock and write_can_lock for MIPS
@ 2005-02-01 21:26 Manish Lachwani
2005-02-03 13:35 ` Ralf Baechle
0 siblings, 1 reply; 2+ messages in thread
From: Manish Lachwani @ 2005-02-01 21:26 UTC (permalink / raw)
To: linux-mips; +Cc: ralf
[-- Attachment #1: Type: text/plain, Size: 150 bytes --]
Hi Ralf,
With SMP+PREEMPT, read_can_lock() and write_can_lock() need to be defined. Attached
patch does this. Please review.
Thanks
Manish Lachwani
[-- Attachment #2: common_mips_locks_preempt.patch --]
[-- Type: text/plain, Size: 441 bytes --]
Index: linux/include/asm-mips/spinlock.h
===================================================================
--- linux.orig/include/asm-mips/spinlock.h
+++ linux/include/asm-mips/spinlock.h
@@ -140,6 +140,9 @@
#define rwlock_init(x) do { *(x) = RW_LOCK_UNLOCKED; } while(0)
+#define read_can_lock(rw) ((rw)->lock >= 0)
+#define write_can_lock(rw) (!(rw)->lock)
+
static inline void _raw_read_lock(rwlock_t *rw)
{
unsigned int tmp;
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] read_can_lock and write_can_lock for MIPS
2005-02-01 21:26 [PATCH] read_can_lock and write_can_lock for MIPS Manish Lachwani
@ 2005-02-03 13:35 ` Ralf Baechle
0 siblings, 0 replies; 2+ messages in thread
From: Ralf Baechle @ 2005-02-03 13:35 UTC (permalink / raw)
To: Manish Lachwani; +Cc: linux-mips
On Tue, Feb 01, 2005 at 01:26:03PM -0800, Manish Lachwani wrote:
> Hi Ralf,
>
> With SMP+PREEMPT, read_can_lock() and write_can_lock() need to be defined. Attached
> patch does this. Please review.
Thanks, applied. In addition I copied the comments from the i386 code
into the spinlocks.h.
Ralf
^ permalink raw reply [flat|nested] 2+ messages in thread
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