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[PATCH] add poison.h and patch primary users

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Localize poison values into one header file for better documentation and
easier/quicker debugging and so that the same values won't be used for
multiple purposes.

Use these constants in core arch., mm, driver, and fs code.

Signed-off-by: Randy Dunlap <[email protected]>
Acked-by: Matt Mackall <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Andi Kleen <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Randy Dunlap 2006-06-27 02:53:52 -07:00 • committed by Linus Torvalds
commit c9cf55285e
9 changed files with 61 additions and 27 deletions
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3
drivers/base/dmapool.c
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@ -7,6 +7,7 @@
#include <linux/dmapool.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/poison.h>
/*
* Pool allocator ... wraps the dma_alloc_coherent page allocator, so
@ -35,8 +36,6 @@ struct dma_page { /* cacheable header for 'allocation' bytes */
};
#define POOL_TIMEOUT_JIFFIES ((100 /* msec */ * HZ) / 1000)
#define POOL_POISON_FREED 0xa7 /* !inuse */
#define POOL_POISON_ALLOCATED 0xa9 /* !initted */
static DECLARE_MUTEX (pools_lock);