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authorTejun Heo <tj@kernel.org>2013-03-13 14:59:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-03-13 15:21:46 -0700
commita37c3010002322f40fe668162a237aa99aac42d1 (patch)
tree861b0a2fe7da4e047c71c1ce86e24b3dd2838ab2 /drivers
parent95e1b7145ed220a2124f9566ad97f4ccecdba063 (diff)
zcache: convert to idr_alloc()
idr_get_new*() and friends are about to be deprecated. Convert to the new idr_alloc() interface. Only compile tested. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Dan Magenheimer <dan.magenheimer@oracle.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/staging/zcache/ramster/tcp.c25
1 files changed, 10 insertions, 15 deletions
diff --git a/drivers/staging/zcache/ramster/tcp.c b/drivers/staging/zcache/ramster/tcp.c
index aa2a1a763aa4..f6e1e5209d88 100644
--- a/drivers/staging/zcache/ramster/tcp.c
+++ b/drivers/staging/zcache/ramster/tcp.c
@@ -300,27 +300,22 @@ static u8 r2net_num_from_nn(struct r2net_node *nn)
static int r2net_prep_nsw(struct r2net_node *nn, struct r2net_status_wait *nsw)
{
- int ret = 0;
+ int ret;
- do {
- if (!idr_pre_get(&nn->nn_status_idr, GFP_ATOMIC)) {
- ret = -EAGAIN;
- break;
- }
- spin_lock(&nn->nn_lock);
- ret = idr_get_new(&nn->nn_status_idr, nsw, &nsw->ns_id);
- if (ret == 0)
- list_add_tail(&nsw->ns_node_item,
- &nn->nn_status_list);
- spin_unlock(&nn->nn_lock);
- } while (ret == -EAGAIN);
+ spin_lock(&nn->nn_lock);
+ ret = idr_alloc(&nn->nn_status_idr, nsw, 0, 0, GFP_ATOMIC);
+ if (ret >= 0) {
+ nsw->ns_id = ret;
+ list_add_tail(&nsw->ns_node_item, &nn->nn_status_list);
+ }
+ spin_unlock(&nn->nn_lock);
- if (ret == 0) {
+ if (ret >= 0) {
init_waitqueue_head(&nsw->ns_wq);
nsw->ns_sys_status = R2NET_ERR_NONE;
nsw->ns_status = 0;
+ return 0;
}
-
return ret;
}