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bees: use MultiLocker to serialize dedupe and logical_ino

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In current kernels there is a bug which leads to an infinite loop in
add_all_parents().  The bug is triggered by one thread running dedupe
while another runs logical_ino.

Work around this by ensuring that bees process never runs dedupe and
logical_ino ioctls at the same time.  Any number of either can run
at the same time, but not one of both.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell
2022-11-16 23:46:14 -05:00
parent 4a4a2de89f
commit a2e1887c52
2 changed files with 21 additions and 11 deletions
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src/bees.h
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@ -8,6 +8,7 @@
#include "crucible/fd.h"
#include "crucible/fs.h"
#include "crucible/lockset.h"
#include "crucible/multilock.h"
#include "crucible/pool.h"
#include "crucible/progress.h"
#include "crucible/time.h"