X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=kernel%2Fsys.c;h=26a6b73a6b85bbc2a4ee1e1392d3aa86d1e9a850;hb=0e1ff5d72a6393f2ef5dbf74f58bb55a12d63834;hp=20ccfb5da6af1bfe9d1eb784b601397a932dff66;hpb=37c24b37fb2454e95136139d10bb6828967105bf;p=~andy%2Flinux

diff --git a/kernel/sys.c b/kernel/sys.c
index 20ccfb5da6a..26a6b73a6b8 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -162,6 +162,7 @@ SYSCALL_DEFINE3(setpriority, int, which, int, who, int, niceval)
 	if (niceval > 19)
 		niceval = 19;
 
+	rcu_read_lock();
 	read_lock(&tasklist_lock);
 	switch (which) {
 		case PRIO_PROCESS:
@@ -199,6 +200,7 @@ SYSCALL_DEFINE3(setpriority, int, which, int, who, int, niceval)
 	}
 out_unlock:
 	read_unlock(&tasklist_lock);
+	rcu_read_unlock();
 out:
 	return error;
 }