Hans de Goede f4e9c82f64 watchdog: Add Locking support ... This patch fixes some potential multithreading issues, despite only allowing one process to open the /dev/watchdog device, we can still get called multiple times at the same time, since a program could be using thread, or could share the fd after a fork. This causes 2 potential problems: 1) watchdog_start / open do an unlocked test_n_set / test_n_clear, if these 2 race, the watchdog could be stopped while the active bit indicates it is running or visa versa. 2) Most watchdog_dev drivers probably assume that only one watchdog-op will get called at a time, this is not necessary true atm. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>		2012-05-30 07:55:23 +02:00
..
acpi
asm-generic	mm: pmd_read_atomic: fix 32bit PAE pmd walk vs pmd_populate SMP race condition	2012-05-29 16:22:24 -07:00
crypto
drm
keys
linux	watchdog: Add Locking support	2012-05-30 07:55:23 +02:00
math-emu
media
memory
misc
mtd
net	memcg: decrement static keys at real destroy time	2012-05-29 16:22:28 -07:00
pcmcia
rdma
rxrpc
scsi
sound
target
trace	mm: vmscan: remove reclaim_mode_t	2012-05-29 16:22:19 -07:00
video
xen
Kbuild