diff options
| author | Timur Tabi <timur@freescale.com> | 2010-12-03 10:51:43 -0600 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2011-01-12 10:24:27 +0000 |
| commit | 5d63c13415db2819590bba975dd023eaa593ddc3 (patch) | |
| tree | c1a99558bd8d6f74f1f3753bf7e8d2a56c27fd20 /drivers/xen/cpu_hotplug.c | |
| parent | a787e71068d7c2e438d8a5a38a7e1385389819f0 (diff) | |
watchdog: add CONFIG_WATCHDOG_NOWAYOUT support to PowerPC Book-E watchdog driver
Normally, the watchdog is disabled when dev/watchdog is closed, but if
CONFIG_WATCHDOG_NOWAYOUT is defined, then it means that the watchdog should
remain enabled. So we should disable it only if CONFIG_WATCHDOG_NOWAYOUT is
not defined.
Also ensure that /dev/watchdog is only opened by one process at a time. That
way, a second process can't accidentally disable the watchdog while the first
process has it open. There shouldn't be any need for more than one process to
open /dev/watchdog anyway.
Signed-off-by: Timur Tabi <timur@freescale.com>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/xen/cpu_hotplug.c')
0 files changed, 0 insertions, 0 deletions