lkml.org 
[lkml]   [2008]   [Apr]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH 10/13] Fix ridr_find()
[PATCH 10/13]

This patch only fixes the ridr_find() portion of ridr.c,
to make it RCU based.

Signed-off-by: Nadia Derbey <Nadia.Derbey@bull.net>

---
lib/ridr.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6.25-rc8-mm1/lib/ridr.c
===================================================================
--- linux-2.6.25-rc8-mm1.orig/lib/ridr.c 2008-04-11 18:04:08.000000000 +0200
+++ linux-2.6.25-rc8-mm1/lib/ridr.c 2008-04-11 18:09:00.000000000 +0200
@@ -381,7 +381,7 @@ void *ridr_find(struct ridr *idp, int id
struct ridr_layer *p;

n = idp->layers * IDR_BITS;
- p = idp->top;
+ p = rcu_dereference(idp->top);

/* Mask off upper bits we don't use for the search. */
id &= MAX_ID_MASK;
@@ -391,7 +391,7 @@ void *ridr_find(struct ridr *idp, int id

while (n > 0 && p) {
n -= IDR_BITS;
- p = p->ary[(id >> n) & IDR_MASK];
+ p = rcu_dereference(p->ary[(id >> n) & IDR_MASK]);
}
return((void *)p);
}
--


\
 
 \ /
  Last update: 2008-04-11 18:29    [W:0.135 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site