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| author | Anton Vorontsov <anton.vorontsov@linaro.org> | 2012-05-26 06:20:28 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-13 16:59:37 -0700 |
| commit | a3f5f075c2e2c52c9c656c54ea77ceff5b2e1e25 (patch) | |
| tree | f7d838b53b635b3f19100db6a45f23c101addbc4 /fs/pstore | |
| parent | b8587daa756141da776e3d4c3a5a315f5af78708 (diff) | |
| download | linux-a3f5f075c2e2c52c9c656c54ea77ceff5b2e1e25.tar.bz2 | |
pstore/platform: Make automatic updates interval configurable
There is no behavioural change, the default value is still 60 seconds.
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/pstore')
| -rw-r--r-- | fs/pstore/platform.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 61461ed9b6c8..34ca3141eb0a 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -31,6 +31,7 @@ #include <linux/slab.h> #include <linux/uaccess.h> #include <linux/hardirq.h> +#include <linux/jiffies.h> #include <linux/workqueue.h> #include "internal.h" @@ -40,7 +41,10 @@ * whether the system is actually still running well enough * to let someone see the entry */ -#define PSTORE_INTERVAL (60 * HZ) +static int pstore_update_ms = 60000; +module_param_named(update_ms, pstore_update_ms, int, 0600); +MODULE_PARM_DESC(update_ms, "milliseconds before pstore updates its content " + "(default is 60000; -1 means runtime updates are disabled)"); static int pstore_new_entry; @@ -231,8 +235,11 @@ int pstore_register(struct pstore_info *psi) kmsg_dump_register(&pstore_dumper); pstore_register_console(); - pstore_timer.expires = jiffies + PSTORE_INTERVAL; - add_timer(&pstore_timer); + if (pstore_update_ms >= 0) { + pstore_timer.expires = jiffies + + msecs_to_jiffies(pstore_update_ms); + add_timer(&pstore_timer); + } return 0; } @@ -291,7 +298,7 @@ static void pstore_timefunc(unsigned long dummy) schedule_work(&pstore_work); } - mod_timer(&pstore_timer, jiffies + PSTORE_INTERVAL); + mod_timer(&pstore_timer, jiffies + msecs_to_jiffies(pstore_update_ms)); } module_param(backend, charp, 0444); |