mirror_zfs/module/zfs
Richard Yao 88b199c24e
Cleanup spa_export_common()
Coverity complains about a possible NULL pointer dereference. This is
impossible, but it suspects it because we do a NULL check against
`spa->spa_root_vdev`. This NULL check was never necessary and makes the
code harder to understand, so we drop it.

In particular, we dereference `spa->spa_root_vdev` when `new_state !=
POOL_STATE_UNINITIALIZED && !hardforce`. The first is only true when
spa_reset is called, which only occurs under fault injection.  The
second is true unless `zpool export -F $POOLNAME` is used.  Therefore,
we effectively *always* dereference the pointer. In the cases where we
do not, there is no reason to think it is unsafe.  Therefore this change
is safe to make.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes #13905
2022-09-27 16:45:51 -07:00
..
abd.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
aggsum.c Remove bcopy(), bzero(), bcmp() 2022-03-15 15:13:42 -07:00
arc.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
blake3_zfs.c Fix memory allocation issue for BLAKE3 context 2022-06-21 14:32:09 -07:00
blkptr.c Remove bcopy(), bzero(), bcmp() 2022-03-15 15:13:42 -07:00
bplist.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
bpobj.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
bptree.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
bqueue.c zfs recv hangs if max recordsize is less than received recordsize 2022-09-16 13:52:25 -07:00
btree.c Add zfs_btree_verify_intensity kernel module parameter 2022-09-15 16:22:33 -07:00
dataset_kstats.c Add support for per dataset zil stats and use wmsum counters 2022-07-20 17:14:06 -07:00
dbuf_stats.c Revert "Reduce dbuf_find() lock contention" 2022-09-22 12:59:41 -07:00
dbuf.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
ddt_zap.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
ddt.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dmu_diff.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dmu_object.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
dmu_objset.c Revert "Avoid panic with recordsize > 128k, raw sending and no large_blocks" 2022-08-25 13:33:32 -07:00
dmu_recv.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
dmu_redact.c Fix incorrect size given to bqueue_enqueue() call in dmu_redact.c 2022-09-15 16:21:21 -07:00
dmu_send.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
dmu_traverse.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
dmu_tx.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dmu_zfetch.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dmu.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
dnode_sync.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dnode.c Cleanup: Use OpenSolaris functions to call scheduler 2022-09-12 09:55:37 -07:00
dsl_bookmark.c Remaining {=> const} char|void *tag 2022-06-29 14:08:59 -07:00
dsl_crypt.c Fix zpool status in case of unloaded keys 2022-08-22 17:42:01 -07:00
dsl_dataset.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
dsl_deadlist.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dsl_deleg.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dsl_destroy.c Prevent zevent list from consuming all of kernel memory 2022-08-22 12:36:22 -07:00
dsl_dir.c Cleanup: Switch to strlcpy from strncpy 2022-09-27 16:35:29 -07:00
dsl_pool.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
dsl_prop.c Cleanup: Switch to strlcpy from strncpy 2022-09-27 16:35:29 -07:00
dsl_scan.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
dsl_synctask.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dsl_userhold.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
edonr_zfs.c Remove bcopy(), bzero(), bcmp() 2022-03-15 15:13:42 -07:00
fm.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
gzip.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
hkdf.c Remove bcopy(), bzero(), bcmp() 2022-03-15 15:13:42 -07:00
lz4_zfs.c Updated the lz4 decompressor 2022-01-07 10:36:49 -08:00
lz4.c lz4: Cherrypick fix for CVE-2021-3520 2022-01-12 16:14:36 -08:00
lzjb.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
metaslab.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
mmp.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
multilist.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
objlist.c Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
pathname.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
range_tree.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
refcount.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
rrwlock.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
sa.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
sha256.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
skein_zfs.c Remove bcopy(), bzero(), bcmp() 2022-03-15 15:13:42 -07:00
spa_checkpoint.c Fix usage of zed_log_msg() and zfs_panic_recover() 2022-09-19 17:32:18 -07:00
spa_config.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
spa_errlog.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
spa_history.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
spa_log_spacemap.c Cleanup: Use OpenSolaris functions to call scheduler 2022-09-12 09:55:37 -07:00
spa_misc.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
spa_stats.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
spa.c Cleanup spa_export_common() 2022-09-27 16:45:51 -07:00
space_map.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
space_reftree.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
THIRDPARTYLICENSE.cityhash OpenZFS 8484 - Implement aggregate sum and use for arc counters 2018-06-06 09:35:59 -07:00
THIRDPARTYLICENSE.cityhash.descrip OpenZFS 8484 - Implement aggregate sum and use for arc counters 2018-06-06 09:35:59 -07:00
txg.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
uberblock.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
unique.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_cache.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
vdev_draid_rand.c Distributed Spare (dRAID) Feature 2020-11-13 13:51:51 -08:00
vdev_draid.c vdev_draid_lookup_map() should not iterate outside draid_maps 2022-09-12 12:51:17 -07:00
vdev_indirect_births.c Remove bcopy(), bzero(), bcmp() 2022-03-15 15:13:42 -07:00
vdev_indirect_mapping.c Remove bcopy(), bzero(), bcmp() 2022-03-15 15:13:42 -07:00
vdev_indirect.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
vdev_initialize.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_label.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_mirror.c Improve too large physical ashift handling 2022-09-08 10:30:53 -07:00
vdev_missing.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_queue.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
vdev_raidz_math_aarch64_neon_common.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz_math_aarch64_neon.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz_math_aarch64_neonx2.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz_math_avx2.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz_math_avx512bw.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz_math_avx512f.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz_math_impl.h Cleanup Raid-Z Typo fixes 2022-09-06 09:43:21 -07:00
vdev_raidz_math_powerpc_altivec_common.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz_math_powerpc_altivec.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz_math_scalar.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz_math_sse2.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz_math_ssse3.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz_math.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz.c Improve too large physical ashift handling 2022-09-08 10:30:53 -07:00
vdev_rebuild.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_removal.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
vdev_root.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_trim.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
zap_leaf.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zap_micro.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zap.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zcp_get.c Cleanup: Switch to strlcpy from strncpy 2022-09-27 16:35:29 -07:00
zcp_global.c OpenZFS 8600 - ZFS channel programs - snapshot 2018-02-08 15:29:24 -08:00
zcp_iter.c module/*.ko: prune .data, global .rodata 2022-01-14 15:37:55 -08:00
zcp_set.c Support setting user properties in a channel program 2020-02-14 13:41:42 -08:00
zcp_synctask.c Add zfs.sync.snapshot_rename 2022-09-02 13:31:19 -07:00
zcp.c Remaining {=> const} char|void *tag 2022-06-29 14:08:59 -07:00
zfeature.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_byteswap.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_chksum.c Fix BLAKE3 tuneable and module loading on Linux and FreeBSD 2022-09-16 14:25:53 -07:00
zfs_fm.c Fix unchecked return values and unused return values 2022-09-23 16:52:03 -07:00
zfs_fuid.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_ioctl.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
zfs_log.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_onexit.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_quota.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_ratelimit.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_replay.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_rlock.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_sa.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_vnops.c zfs_enter rework 2022-09-16 13:36:47 -07:00
zil.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
zio_checksum.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zio_compress.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zio_inject.c Cleanup: Switch to strlcpy from strncpy 2022-09-27 16:35:29 -07:00
zio.c Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
zle.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zrlock.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zthr.c Switch from _Noreturn to __attribute__((noreturn)) 2022-03-23 08:51:00 -07:00
zvol.c Fix unchecked return values and unused return values 2022-09-23 16:52:03 -07:00