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authorTejun Heo <tj@kernel.org>2013-02-27 17:04:57 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 19:10:20 -0800
commit19a101a02ec65400233459ee7cef7037dbe8f15b (patch)
tree4166d34c37ba10d1b288a9dc037cf03c03eb3a3a /net
parentee94d523bf92d3b8b2de166943d48ac7fd695e10 (diff)
downloadlinaro-lsk-19a101a02ec65400233459ee7cef7037dbe8f15b.tar.gz
net/9p: convert to idr_alloc()
Convert to the much saner new idr interface. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Ron Minnich <rminnich@sandia.gov> Cc: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net')
-rw-r--r--net/9p/util.c17
1 files changed, 6 insertions, 11 deletions
diff --git a/net/9p/util.c b/net/9p/util.c
index 6ceeeb384de..59f278e64f5 100644
--- a/net/9p/util.c
+++ b/net/9p/util.c
@@ -87,23 +87,18 @@ EXPORT_SYMBOL(p9_idpool_destroy);
int p9_idpool_get(struct p9_idpool *p)
{
- int i = 0;
- int error;
+ int i;
unsigned long flags;
-retry:
- if (idr_pre_get(&p->pool, GFP_NOFS) == 0)
- return -1;
-
+ idr_preload(GFP_NOFS);
spin_lock_irqsave(&p->lock, flags);
/* no need to store exactly p, we just need something non-null */
- error = idr_get_new(&p->pool, p, &i);
- spin_unlock_irqrestore(&p->lock, flags);
+ i = idr_alloc(&p->pool, p, 0, 0, GFP_NOWAIT);
- if (error == -EAGAIN)
- goto retry;
- else if (error)
+ spin_unlock_irqrestore(&p->lock, flags);
+ idr_preload_end();
+ if (i < 0)
return -1;
p9_debug(P9_DEBUG_MUX, " id %d pool %p\n", i, p);