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Set zfs_autoimport_disable default value to 1 

When loading the ZFS kernel modules they should not populate the
spa namespace using the cache file.  This behavior isn't consistent
with other Linux kernel modules and we need to move away from it.
Removing this makes the whole startup process predictable with four
basic steps which are driven by the init system.

1) modprobe
2) zpool import
3) zfs mount
4) zfs share

This change also helps lay the groundwork for eventually removing
the kobj_* compatibility code on the kernel side.  It may need to
be preserved in userspace because libzfs_init() depends on it.
This is why the conditional must be wrapped with an #ifdef _KERNEL.

Signed-off-by: Dan Swartzendruber <dswartz@druber.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2820
This commit is contained in:
Dan Swartzendruber 2014-10-09 16:45:46 -04:00 committed by Brian Behlendorf
parent 7d2868d5fc
commit 1611bb7b4f
2 changed files with 6 additions and 3 deletions
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4
module/zfs/spa_config.c
View File

@ -64,7 +64,7 @@ static uint64_t spa_config_generation = 1;
* userland pools when doing testing.
*/
char *spa_config_path = ZPOOL_CACHE;
int zfs_autoimport_disable = 0;
int zfs_autoimport_disable = 1;
/*
* Called when the module is first loaded, this routine loads the configuration
@ -81,8 +81,10 @@ spa_config_load(void)
struct _buf *file;
uint64_t fsize;
#ifdef _KERNEL
if (zfs_autoimport_disable)
return;
#endif
/*
* Open the configuration file.

5
scripts/zconfig.sh
View File

@ -96,6 +96,7 @@ test_1() {
# Unload/load the module stack and verify the pool persists.
${ZFS_SH} -u || fail 4
${ZFS_SH} zfs="spa_config_path=${TMP_CACHE}" || fail 5
${ZPOOL} import -c ${TMP_CACHE} ${POOL_NAME} || fail 5
${ZPOOL} status ${POOL_NAME} >${TMP_FILE2} || fail 6
cmp ${TMP_FILE1} ${TMP_FILE2} || fail 7
@ -126,8 +127,7 @@ test_2() {
${ZFS_SH} -u || fail 4
rm -f ${TMP_CACHE} || fail 5
${ZFS_SH} zfs="spa_config_path=${TMP_CACHE}" || fail 6
${ZPOOL} import | grep ${POOL_NAME} >/dev/null || fail 7
${ZPOOL} import -f ${POOL_NAME} || fail 8
${ZPOOL} import -d /dev ${POOL_NAME} || fail 8
${ZPOOL} status ${POOL_NAME} >${TMP_FILE2} || fail 9
cmp ${TMP_FILE1} ${TMP_FILE2} || fail 10
@ -266,6 +266,7 @@ test_4() {
# Load the modules, list the pools to ensure they are opened
${ZFS_SH} zfs="spa_config_path=${TMP_CACHE}" || fail 10
${ZPOOL} import -c ${TMP_CACHE} ${POOL_NAME} || fail 10
${ZPOOL} list &>/dev/null
# Verify the devices were created