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Fix optional "force" arg handing in zfs_ioc_pool_sync()

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The fnvlist_lookup_boolean_value() function should not be used
to check the force argument since it's optional.  It may not be
provided or may have been created with the wrong flags.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11281
Closes #11284
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Brian Behlendorf 2020-12-09 14:52:45 -08:00 committed by GitHub
parent 1a735e763a
commit edb20ff3ba
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1 changed files with 7 additions and 4 deletions
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11
module/zfs/zfs_ioctl.c
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@ -6648,14 +6648,17 @@ static int
zfs_ioc_pool_sync(const char *pool, nvlist_t *innvl, nvlist_t *onvl) zfs_ioc_pool_sync(const char *pool, nvlist_t *innvl, nvlist_t *onvl)
{ {
int err; int err;
boolean_t force = B_FALSE; boolean_t rc, force = B_FALSE;
spa_t *spa; spa_t *spa;
if ((err = spa_open(pool, &spa, FTAG)) != 0) if ((err = spa_open(pool, &spa, FTAG)) != 0)
return (err); return (err);
if (innvl) if (innvl) {
force = fnvlist_lookup_boolean_value(innvl, "force"); err = nvlist_lookup_boolean_value(innvl, "force", &rc);
if (err == 0)
force = rc;
}
if (force) { if (force) {
spa_config_enter(spa, SCL_CONFIG, FTAG, RW_WRITER); spa_config_enter(spa, SCL_CONFIG, FTAG, RW_WRITER);
@ -6666,7 +6669,7 @@ zfs_ioc_pool_sync(const char *pool, nvlist_t *innvl, nvlist_t *onvl)
spa_close(spa, FTAG); spa_close(spa, FTAG);
return (err); return (0);
} }
/* /*