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mmp should use a fixed tag for spa_config locks

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mmp_write_uberblock() and mmp_write_done() should the same tag
for spa_config_locks.

Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Sanjeev Bagewadi <sanjeev.bagewadi@gmail.com>
Closes #6530
Closes #7155
This commit is contained in:
sanjeevbagewadi 2018-02-13 01:00:38 +05:30 committed by Tony Hutter
parent b3da003ebf
commit d85011ed69
1 changed files with 3 additions and 2 deletions
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5
module/zfs/mmp.c
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@ -125,6 +125,7 @@ uint_t zfs_multihost_import_intervals = MMP_DEFAULT_IMPORT_INTERVALS;
uint_t zfs_multihost_fail_intervals = MMP_DEFAULT_FAIL_INTERVALS;
static void mmp_thread(spa_t *spa);
char *mmp_tag = "mmp_write_uberblock";
void
mmp_init(spa_t *spa)
@ -278,7 +279,7 @@ mmp_write_done(zio_t *zio)
unlock:
mutex_exit(&mts->mmp_io_lock);
spa_config_exit(spa, SCL_STATE, FTAG);
spa_config_exit(spa, SCL_STATE, mmp_tag);
abd_free(zio->io_abd);
}
@ -314,7 +315,7 @@ mmp_write_uberblock(spa_t *spa)
int label;
uint64_t offset;
spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
spa_config_enter(spa, SCL_STATE, mmp_tag, RW_READER);
vd = mmp_random_leaf(spa->spa_root_vdev);
if (vd == NULL) {
spa_config_exit(spa, SCL_STATE, FTAG);