redonkable
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alistair23-linux
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md/bitmap: remove unnecessary indirection when allocating. 

These funcitons don't add anything useful except possibly the trace
points, and I don't think they are worth the extra indirection.
So remove them.

Signed-off-by: NeilBrown <neilb@suse.de>
hifive-unleashed-5.1
NeilBrown 2012-03-19 12:46:41 +11:00
parent 5a6c824ebb
commit 792a1d4bbf
1 changed files with 3 additions and 28 deletions
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31
drivers/md/bitmap.c
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@ -35,31 +35,6 @@ static inline char *bmname(struct bitmap *bitmap)
return bitmap->mddev ? mdname(bitmap->mddev) : "mdX";
}
/*
* just a placeholder - calls kmalloc for bitmap pages
*/
static unsigned char *bitmap_alloc_page(struct bitmap *bitmap)
{
unsigned char *page;
page = kzalloc(PAGE_SIZE, GFP_NOIO);
if (!page)
printk("%s: bitmap_alloc_page FAILED\n", bmname(bitmap));
else
pr_debug("%s: bitmap_alloc_page: allocated page at %p\n",
bmname(bitmap), page);
return page;
}
/*
* for now just a placeholder -- just calls kfree for bitmap pages
*/
static void bitmap_free_page(struct bitmap *bitmap, unsigned char *page)
{
pr_debug("%s: bitmap_free_page: free page %p\n", bmname(bitmap), page);
kfree(page);
}
/*
* check a page and, if necessary, allocate it (or hijack it if the alloc fails)
*
@ -97,7 +72,7 @@ __acquires(bitmap->lock)
/* this page has not been allocated yet */
spin_unlock_irq(&bitmap->lock);
mappage = bitmap_alloc_page(bitmap);
mappage = kzalloc(PAGE_SIZE, GFP_NOIO);
spin_lock_irq(&bitmap->lock);
if (mappage == NULL) {
@ -110,7 +85,7 @@ __acquires(bitmap->lock)
} else if (bitmap->bp[page].map ||
bitmap->bp[page].hijacked) {
/* somebody beat us to getting the page */
bitmap_free_page(bitmap, mappage);
kfree(mappage);
return 0;
} else {
@ -142,7 +117,7 @@ static void bitmap_checkfree(struct bitmap *bitmap, unsigned long page)
ptr = bitmap->bp[page].map;
bitmap->bp[page].map = NULL;
bitmap->missing_pages++;
bitmap_free_page(bitmap, ptr);
kfree(ptr);
}
}