md: use mddev->lock to protect updates to resync_{min,max}.

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There are interdependencies between these two sysfs attributes
and whether a resync is currently running.

Rather than depending on reconfig_mutex to ensure no races when
testing these interdependencies are met, use the spinlock.
This will allow the mutex to be remove from protecting this
code in a subsequent patch.

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

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This commit is contained in:

NeilBrown 2014-12-15 12:57:01 +11:00

parent 1b30e66f5a

commit 23da422b19

2 changed files with 47 additions and 13 deletions

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58

drivers/md/md.c

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2

drivers/md/md.h

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