The patch titled
spidernet: transmit race
has been added to the -mm tree. Its filename is
spidernet-transmit-race.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: spidernet: transmit race
From: Linas Vepstas <linas@xxxxxxxxxxxxxx>
Multiple threads performing a transmit can race into the spidernet tx ring
cleanup code. This puts the relevant check under a lock.
Signed-off-by: Linas Vepstas <lins@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/net/spider_net.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff -puN drivers/net/spider_net.c~spidernet-transmit-race drivers/net/spider_net.c
--- a/drivers/net/spider_net.c~spidernet-transmit-race
+++ a/drivers/net/spider_net.c
@@ -803,8 +803,12 @@ spider_net_release_tx_chain(struct spide
unsigned long flags;
int status;
- while (chain->tail != chain->head) {
+ while (1) {
spin_lock_irqsave(&chain->lock, flags);
+ if (chain->tail == chain->head) {
+ spin_unlock_irqrestore(&chain->lock, flags);
+ return 0;
+ }
descr = chain->tail;
hwdescr = descr->hwdescr;
_
Patches currently in -mm which might be from linas@xxxxxxxxxxxxxx are
s2io-add-pci-error-recovery-support.patch
sungem_phy-support-bcm5461-phy-autoneg.patch
spidernet-compile-break.patch
spidernet-autoneg-support-for-celleb.patch
spidernet-load-firmware-when-open.patch
spidernet-spidernet-add-support-for-celleb.patch
spidernet-remove-txram-full-logging.patch
spidernet-move-medium-variable-into-card-struct.patch
spidernet-separate-hardware-state-from-driver-state.patch
spidernet-fix-racy-double-free-of-skb.patch
spidernet-transmit-race.patch
spidernet-janitorial-typos.patch
spidernet-maintainership.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
