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md/bitmap remove fault injection options.

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These are too hard to use to be much more than noise.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2011-10-11 16:49:56 +11:00
parent d1688a6d55
commit 29d3247ea2
1 changed files with 1 additions and 33 deletions
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34
drivers/md/bitmap.c
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@ -29,27 +29,6 @@
#include "md.h" #include "md.h"
#include "bitmap.h" #include "bitmap.h"
/* debug macros */
#define DEBUG 0
#if DEBUG
/* these are for debugging purposes only! */
/* define one and only one of these */
#define INJECT_FAULTS_1 0 /* cause bitmap_alloc_page to fail always */
#define INJECT_FAULTS_2 0 /* cause bitmap file to be kicked when first bit set*/
#define INJECT_FAULTS_3 0 /* treat bitmap file as kicked at init time */
#define INJECT_FAULTS_4 0 /* undef */
#define INJECT_FAULTS_5 0 /* undef */
#define INJECT_FAULTS_6 0
/* if these are defined, the driver will fail! debug only */
#define INJECT_FATAL_FAULT_1 0 /* fail kmalloc, causing bitmap_create to fail */
#define INJECT_FATAL_FAULT_2 0 /* undef */
#define INJECT_FATAL_FAULT_3 0 /* undef */
#endif
static inline char *bmname(struct bitmap *bitmap) static inline char *bmname(struct bitmap *bitmap)
{ {
return bitmap->mddev ? mdname(bitmap->mddev) : "mdX"; return bitmap->mddev ? mdname(bitmap->mddev) : "mdX";
@ -62,11 +41,7 @@ static unsigned char *bitmap_alloc_page(struct bitmap *bitmap)
{ {
unsigned char *page; unsigned char *page;
#ifdef INJECT_FAULTS_1
page = NULL;
#else
page = kzalloc(PAGE_SIZE, GFP_NOIO); page = kzalloc(PAGE_SIZE, GFP_NOIO);
#endif
if (!page) if (!page)
printk("%s: bitmap_alloc_page FAILED\n", bmname(bitmap)); printk("%s: bitmap_alloc_page FAILED\n", bmname(bitmap));
else else
@ -990,11 +965,7 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
BUG_ON(!file && !bitmap->mddev->bitmap_info.offset); BUG_ON(!file && !bitmap->mddev->bitmap_info.offset);
#ifdef INJECT_FAULTS_3
outofdate = 1;
#else
outofdate = bitmap->flags & BITMAP_STALE; outofdate = bitmap->flags & BITMAP_STALE;
#endif
if (outofdate) if (outofdate)
printk(KERN_INFO "%s: bitmap file is out of date, doing full " printk(KERN_INFO "%s: bitmap file is out of date, doing full "
"recovery\n", bmname(bitmap)); "recovery\n", bmname(bitmap));
@ -1800,11 +1771,8 @@ int bitmap_create(struct mddev *mddev)
bitmap->pages = pages; bitmap->pages = pages;
bitmap->missing_pages = pages; bitmap->missing_pages = pages;
#ifdef INJECT_FATAL_FAULT_1
bitmap->bp = NULL;
#else
bitmap->bp = kzalloc(pages * sizeof(*bitmap->bp), GFP_KERNEL); bitmap->bp = kzalloc(pages * sizeof(*bitmap->bp), GFP_KERNEL);
#endif
err = -ENOMEM; err = -ENOMEM;
if (!bitmap->bp) if (!bitmap->bp)
goto error; goto error;