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Subject[PATCH v3 8/9] pstore: max out console log level during sysfs dump switch
Date
From: Dragos Tatulea <dragos.tatulea@intel.com>

Otherwise we might miss out on some pstore dumpers that use
printks below current log level.

Signed-off-by: Dragos Tatulea <dragos.tatulea@intel.com>
---
fs/pstore/platform.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 25f59ed..e3ad13e 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -267,6 +267,7 @@ static DEFINE_SPINLOCK(dbg_lock);
static int dbg_dump(void *data, u64 val)
{
unsigned long flags;
+ int saved_loglevel;

switch (val) {
case KMSG_DUMP_PANIC:
@@ -276,7 +277,10 @@ static int dbg_dump(void *data, u64 val)
case KMSG_DUMP_HALT:
case KMSG_DUMP_POWEROFF:
spin_lock_irqsave(&dbg_lock, flags);
+ saved_loglevel = console_loglevel;
+ console_loglevel = 15;
kmsg_dump(val);
+ console_loglevel = saved_loglevel;
spin_unlock_irqrestore(&dbg_lock, flags);
return 0;
}
--
1.7.9.5


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