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Commit 7dbb4386 authored by Philipp Reisner's avatar Philipp Reisner Committed by Jens Axboe
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drbd: make suspend_io() / resume_io() must be thread and recursion safe 



Avoid to prematurely resume application IO: don't set/clear a single
bit, but inc/dec an atomic counter.

Signed-off-by: default avatarPhilipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: default avatarLars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent f85d9f2d
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