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staging: zcache: cleanup zcache_do_preload and zcache_put_page

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Cleanup the code for zcache_do_preload and zcache_put_page

Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xiao Guangrong 2012-06-26 16:51:55 +08:00 committed by Greg Kroah-Hartman
parent 79c0d92c5b
commit b71f3bcc5a
1 changed files with 17 additions and 22 deletions
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39
drivers/staging/zcache/zcache-main.c
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@ -1045,28 +1045,23 @@ static int zcache_do_preload(struct tmem_pool *pool)
kp->objnodes[kp->nr++] = objnode;
}
obj = kmem_cache_alloc(zcache_obj_cache, ZCACHE_GFP_MASK);
if (unlikely(obj == NULL)) {
zcache_failed_alloc++;
goto out;
}
page = (void *)__get_free_page(ZCACHE_GFP_MASK);
if (unlikely(page == NULL)) {
zcache_failed_get_free_pages++;
kmem_cache_free(zcache_obj_cache, obj);
goto out;
}
if (kp->obj == NULL)
if (!kp->obj) {
obj = kmem_cache_alloc(zcache_obj_cache, ZCACHE_GFP_MASK);
if (unlikely(obj == NULL)) {
zcache_failed_alloc++;
goto out;
}
kp->obj = obj;
else
kmem_cache_free(zcache_obj_cache, obj);
}
if (kp->page == NULL)
kp->page = page;
else
free_page((unsigned long)page);
if (!kp->page) {
page = (void *)__get_free_page(ZCACHE_GFP_MASK);
if (unlikely(page == NULL)) {
zcache_failed_get_free_pages++;
goto out;
}
kp->page = page;
}
ret = 0;
out:
@ -1577,14 +1572,14 @@ static int zcache_put_page(int cli_id, int pool_id, struct tmem_oid *oidp,
else
zcache_failed_pers_puts++;
}
zcache_put_pool(pool);
} else {
zcache_put_to_flush++;
if (atomic_read(&pool->obj_count) > 0)
/* the put fails whether the flush succeeds or not */
(void)tmem_flush_page(pool, oidp, index);
zcache_put_pool(pool);
}
zcache_put_pool(pool);
out:
return ret;
}