md: minor cleanup in safe_delay_store.

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There isn't really much room for races with ->safemode_delay.
But as I am trying to clean up any racy code and will soon
be removing reconfig_mutex protection from most _store()
functions:
 - only set mddev->safemode_delay once, to ensure no code
   can see an intermediate value
 - use safemode_timer to call md_safemode_timeout() rather than
   calling it directly, to ensure it never races with itself.

Signed-off-by: NeilBrown <neilb@suse.de>

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NeilBrown 2014-12-15 12:57:00 +11:00

parent 4af1a04176

commit 1b30e66f5a

1 changed files with 7 additions and 5 deletions

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drivers/md/md.c

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