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[PKTGEN]: Sleeping function called under lock 

pktgen is calling kmalloc GFP_KERNEL and vmalloc with lock held.
The simplest fix is to turn the lock into a semaphore, since the
thread lock is only used for admin control from user context.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Robert Olsson <robert.olsson@its.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
This commit is contained in:
Stephen Hemminger 2005-10-14 15:26:34 -07:00 committed by Arnaldo Carvalho de Melo
parent 670c02c2bf
commit b7c8921bf1
1 changed files with 3 additions and 3 deletions
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6
net/core/pktgen.c
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@ -177,8 +177,8 @@
#define T_REMDEV (1<<3) /* Remove all devs */ #define T_REMDEV (1<<3) /* Remove all devs */
/* Locks */ /* Locks */
#define thread_lock() spin_lock(&_thread_lock) #define thread_lock() down(&pktgen_sem)
#define thread_unlock() spin_unlock(&_thread_lock) #define thread_unlock() up(&pktgen_sem)
/* If lock -- can be removed after some work */ /* If lock -- can be removed after some work */
#define if_lock(t) spin_lock(&(t->if_lock)); #define if_lock(t) spin_lock(&(t->if_lock));
@ -503,7 +503,7 @@ static int pg_delay_d = 0;
static int pg_clone_skb_d = 0; static int pg_clone_skb_d = 0;
static int debug = 0; static int debug = 0;
static DEFINE_SPINLOCK(_thread_lock); static DECLARE_MUTEX(pktgen_sem);
static struct pktgen_thread *pktgen_threads = NULL; static struct pktgen_thread *pktgen_threads = NULL;
static char module_fname[128]; static char module_fname[128];