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Mark all ZPL and ioctl functions as PF_FSTRANS

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Prevent deadlocks by disabling direct reclaim during all ZPL and ioctl
calls as well as the l2arc and adapt ARC threads.

This obviates the need for MUTEX_FSTRANS so its previous uses and
definition have been eliminated.

Signed-off-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3225
This commit is contained in:
Tim Chase
2015-03-30 22:43:29 -05:00
committed by Brian Behlendorf
parent 74aa2ba259
commit 40d06e3c78
7 changed files with 96 additions and 19 deletions
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include/sys/zfs_context.h
-1
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@@ -273,7 +273,6 @@ typedef struct kmutex {
} kmutex_t;
#define MUTEX_DEFAULT 0
#define MUTEX_FSTRANS MUTEX_DEFAULT
#define MUTEX_HELD(m) ((m)->m_owner == curthread)
#define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m))