On Mon, Mar 22, 2010 at 12:47:17PM +0000, David Howells wrote:
> radix_tree_gang_lookup_tag() finds pages in the tree that have a
> particular tag set, and returns the number of pages it has selected.
> If that number is != 1, then I don't proceed with accessing the array.
>
> So I think the tests of page later are unnecessary.
Yep. I think so too.
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index 47aefd3..723b889 100644
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -710,30 +710,26 @@ static void fscache_write_op(struct fscache_operation *_op)
goto superseded;
}
- if (page) {
- radix_tree_tag_set(&cookie->stores, page->index,
- FSCACHE_COOKIE_STORING_TAG);
- radix_tree_tag_clear(&cookie->stores, page->index,
- FSCACHE_COOKIE_PENDING_TAG);
- }
+ radix_tree_tag_set(&cookie->stores, page->index,
+ FSCACHE_COOKIE_STORING_TAG);
+ radix_tree_tag_clear(&cookie->stores, page->index,
+ FSCACHE_COOKIE_PENDING_TAG);
spin_unlock(&cookie->stores_lock);
spin_unlock(&object->lock);
- if (page) {
- fscache_set_op_state(&op->op, "Store");
- fscache_stat(&fscache_n_store_pages);
- fscache_stat(&fscache_n_cop_write_page);
- ret = object->cache->ops->write_page(op, page);
- fscache_stat_d(&fscache_n_cop_write_page);
- fscache_set_op_state(&op->op, "EndWrite");
- fscache_end_page_write(object, page);
- if (ret < 0) {
- fscache_set_op_state(&op->op, "Abort");
- fscache_abort_object(object);
- } else {
- fscache_enqueue_operation(&op->op);
- }
+ fscache_set_op_state(&op->op, "Store");
+ fscache_stat(&fscache_n_store_pages);
+ fscache_stat(&fscache_n_cop_write_page);
+ ret = object->cache->ops->write_page(op, page);
+ fscache_stat_d(&fscache_n_cop_write_page);
+ fscache_set_op_state(&op->op, "EndWrite");
+ fscache_end_page_write(object, page);
+ if (ret < 0) {
+ fscache_set_op_state(&op->op, "Abort");
+ fscache_abort_object(object);
+ } else {
+ fscache_enqueue_operation(&op->op);
}
_leave("");
--
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