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Serapheim Dimitropoulos 7558997d2f vs_alloc can underflow in L2ARC vdevs 
The current L2 ARC device code consistently uses psize to
increment vs_alloc but varies between psize and lsize when
decrementing it. The result of this behavior is that
vs_alloc can be decremented more that it is incremented
and underflow. This patch changes the code so asize is
used anywhere.

In addition, it ensures that vs_alloc gets incremented by
the L2 ARC device code as buffers are written and not at
the end of the l2arc_write_buffers() routine. The latter
(and old) way would temporarily underflow vs_alloc as
buffers that were just written, would be destroyed while
l2arc_write_buffers() was still looping.

Reviewed-by: Matt Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Closes #8298
2019-01-31 09:16:39 -08:00
..
abd.c
Prefix all refcount functions with zfs_
2018-10-01 10:42:05 -07:00
aggsum.c
OpenZFS 9688 - aggsum_fini leaks memory
2018-10-19 12:08:03 -07:00
arc.c
vs_alloc can underflow in L2ARC vdevs
2019-01-31 09:16:39 -08:00
blkptr.c
Undo c89 workarounds to match with upstream
2017-11-04 13:25:13 -07:00
bplist.c
Change KM_PUSHPAGE -> KM_SLEEP
2015-01-16 14:41:26 -08:00
bpobj.c
bpobj_enqueue_subobj() should copy small subobj's
2018-10-31 11:58:17 -05:00
bptree.c
Native Encryption for ZFS on Linux
2017-08-14 10:36:48 -07:00
bqueue.c
Call cv_signal() with mutex held
2017-06-26 14:36:49 -07:00
cityhash.c
OpenZFS 8484 - Implement aggregate sum and use for arc counters
2018-06-06 09:35:59 -07:00
dataset_kstats.c
Introduce read/write kstats per dataset
2018-08-20 09:52:37 -07:00
dbuf_stats.c
Prefix all refcount functions with zfs_
2018-10-01 10:42:05 -07:00
dbuf.c
Fix error handling incallers of dbuf_hold_level()
2019-01-17 15:47:08 -08:00
ddt_zap.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
ddt.c
ztest: scrub ddt repair
2019-01-17 15:25:00 -08:00
dmu_diff.c
Fix issues found with zfs diff
2018-05-01 11:24:20 -07:00
dmu_object.c
Provide more flexible object allocation interface
2019-01-10 14:37:43 -08:00
dmu_objset.c
Add types to featureflags in zfs
2018-10-16 11:15:04 -07:00
dmu_recv.c
Fix 0 byte memory leak in zfs receive
2019-01-18 11:06:48 -08:00
dmu_send.c
Add types to featureflags in zfs
2018-10-16 11:15:04 -07:00
dmu_traverse.c
Fix traverse_impl() kmem leak
2018-08-15 09:53:44 -07:00
dmu_tx.c
Prefix all refcount functions with zfs_
2018-10-01 10:42:05 -07:00
dmu_zfetch.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
dmu.c
Fix error handling incallers of dbuf_hold_level()
2019-01-17 15:47:08 -08:00
dnode_sync.c
Add types to featureflags in zfs
2018-10-16 11:15:04 -07:00
dnode.c
Don't allow dnode allocation if dn_holds != 0
2019-01-10 14:36:23 -08:00
dsl_bookmark.c
Undo c89 workarounds to match with upstream
2017-11-04 13:25:13 -07:00
dsl_crypt.c
Replay logs before starting ztest workers
2018-11-07 15:40:24 -08:00
dsl_dataset.c
Add types to featureflags in zfs
2018-10-16 11:15:04 -07:00
dsl_deadlist.c
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -07:00
dsl_deleg.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
dsl_destroy.c
zfs receive and rollback can skew filesystem_count
2019-01-08 10:17:46 -08:00
dsl_dir.c
zfs_ioc_unload_key can drop extra spa ref
2018-08-03 14:50:51 -07:00
dsl_pool.c
ztest: creates partially initialized root dataset
2019-01-18 11:14:01 -08:00
dsl_prop.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
dsl_scan.c
Ensure dsl scan prefetch queue is emptied
2018-12-06 09:47:23 -08:00
dsl_synctask.c
OpenZFS 9166 - zfs storage pool checkpoint
2018-06-26 10:07:42 -07:00
dsl_userhold.c
OpenZFS 9166 - zfs storage pool checkpoint
2018-06-26 10:07:42 -07:00
edonr_zfs.c
DLPX-44812 integrate EP-220 large memory scalability
2016-11-29 14:34:27 -08:00
fm.c
OpenZFS 9580 - Add a hash-table on top of nvlist to speed-up operations
2018-07-30 11:30:03 -07:00
gzip.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
hkdf.c
Encryption patch follow-up
2017-10-11 16:54:48 -04:00
lz4.c
Fix LZ4_uncompress_unknownOutputSize caused panic
2017-05-19 13:45:46 -07:00
lzjb.c
Change KM_PUSHPAGE -> KM_SLEEP
2015-01-16 14:41:26 -08:00
Makefile.in
OpenZFS 9102 - zfs should be able to initialize storage devices
2019-01-07 10:37:26 -08:00
metaslab.c
Rename range_tree_verify to range_tree_verify_not_present
2019-01-25 09:51:24 -08:00
mmp.c
Use proper tag for spa config refcounts in mmp_write_uberblock()
2019-01-25 09:50:06 -08:00
multilist.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
pathname.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
policy.c
Take user namespaces into account in policy checks
2018-03-07 15:40:42 -08:00
qat_compress.c
Fix inst_num overflow in qat_crypt.c
2018-05-01 20:44:24 -07:00
qat_crypt.c
Fix inst_num overflow in qat_crypt.c
2018-05-01 20:44:24 -07:00
qat.c
SHA256 QAT acceleration
2018-03-15 10:53:58 -07:00
qat.h
Resolve QAT issues with incompressible data
2018-03-29 17:40:34 -07:00
range_tree.c
Rename range_tree_verify to range_tree_verify_not_present
2019-01-25 09:51:24 -08:00
refcount.c
Add zfs_refcount_transfer_ownership_many()
2018-10-09 10:05:48 -07:00
rrwlock.c
Prefix all refcount functions with zfs_
2018-10-01 10:42:05 -07:00
sa.c
Prefix all refcount functions with zfs_
2018-10-01 10:42:05 -07:00
sha256.c
SHA256 QAT acceleration
2018-03-15 10:53:58 -07:00
skein_zfs.c
DLPX-44812 integrate EP-220 large memory scalability
2016-11-29 14:34:27 -08:00
spa_boot.c
Add linux kernel module support
2010-08-31 13:41:58 -07:00
spa_checkpoint.c
Serialize ZTHR operations to eliminate races
2019-01-13 10:09:46 -08:00
spa_config.c
OpenZFS 9591 - ms_shift can be incorrectly changed
2018-06-21 09:35:26 -07:00
spa_errlog.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
spa_history.c
Create /proc/sys/kernel/spl/gitrev with git hash
2018-10-08 21:57:02 -07:00
spa_misc.c
zfs initialize performance enhancements
2019-01-07 11:03:08 -08:00
spa_stats.c
Fixes for procfs files backed by linked lists
2018-09-26 11:08:12 -07:00
spa.c
Simplify spa_sync by breaking it up to smaller functions
2019-01-18 09:50:16 -08:00
space_map.c
OpenZFS 9442 - decrease indirect block size of spacemaps
2018-07-25 14:11:35 -07:00
space_reftree.c
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -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
trace.c
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -07:00
txg.c
Fix lock inversion in txg_sync_thread()
2018-10-24 14:37:02 -07:00
uberblock.c
OpenZFS 9166 - zfs storage pool checkpoint
2018-06-26 10:07:42 -07:00
unique.c
Performance optimization of AVL tree comparator functions
2016-08-31 14:35:34 -07:00
vdev_cache.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
vdev_disk.c
Linux 5.0 compat: Fix bio_set_dev()
2019-01-28 10:11:45 -08:00
vdev_file.c
OpenZFS 9102 - zfs should be able to initialize storage devices
2019-01-07 10:37:26 -08:00
vdev_indirect_births.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
vdev_indirect_mapping.c
OpenZFS 9847 - leaking dd_clones (DMU_OT_DSL_CLONES) objects (#7979)
2018-10-12 11:28:26 -07:00
vdev_indirect.c
ztest: split block reconstruction
2019-01-16 14:10:02 -08:00
vdev_initialize.c
Factor metaslab_load_wait() in metaslab_load()
2019-01-18 11:10:32 -08:00
vdev_label.c
Fix coverity defects: CID 184285
2018-11-11 18:09:00 -08:00
vdev_mirror.c
OpenZFS 8473 - scrub does not detect errors on active spares
2019-01-08 09:51:30 -08:00
vdev_missing.c
OpenZFS 9102 - zfs should be able to initialize storage devices
2019-01-07 10:37:26 -08:00
vdev_queue.c
OpenZFS 9102 - zfs should be able to initialize storage devices
2019-01-07 10:37:26 -08:00
vdev_raidz_math_aarch64_neon_common.h
ABD raidz NEON support
2016-11-29 14:34:33 -08:00
vdev_raidz_math_aarch64_neon.c
codebase style improvements for OpenZFS 6459 port
2017-01-22 13:25:40 -08:00
vdev_raidz_math_aarch64_neonx2.c
ABD raidz NEON support
2016-11-29 14:34:33 -08:00
vdev_raidz_math_avx2.c
ABD raidz avx512f support
2016-11-29 14:34:33 -08:00
vdev_raidz_math_avx512bw.c
ABD: Adapt avx512bw raidz assembly
2016-12-15 17:31:33 -08:00
vdev_raidz_math_avx512f.c
Use cstyle -cpP in make cstyle check
2016-12-12 10:46:26 -08:00
vdev_raidz_math_impl.h
codebase style improvements for OpenZFS 6459 port
2017-01-22 13:25:40 -08:00
vdev_raidz_math_scalar.c
ABD Vectorized raidz
2016-11-29 14:34:33 -08:00
vdev_raidz_math_sse2.c
ABD raidz avx512f support
2016-11-29 14:34:33 -08:00
vdev_raidz_math_ssse3.c
codebase style improvements for OpenZFS 6459 port
2017-01-22 13:25:40 -08:00
vdev_raidz_math.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
vdev_raidz.c
OpenZFS 9102 - zfs should be able to initialize storage devices
2019-01-07 10:37:26 -08:00
vdev_removal.c
Simplify spa_sync by breaking it up to smaller functions
2019-01-18 09:50:16 -08:00
vdev_root.c
OpenZFS 9102 - zfs should be able to initialize storage devices
2019-01-07 10:37:26 -08:00
vdev.c
vs_alloc can underflow in L2ARC vdevs
2019-01-31 09:16:39 -08:00
zap_leaf.c
Off-by-one in zap_leaf_array_create()
2019-01-18 09:58:46 -08:00
zap_micro.c
Provide more flexible object allocation interface
2019-01-10 14:37:43 -08:00
zap.c
OpenZFS 9328 - zap code can take advantage of c99
2018-05-31 10:53:11 -07:00
zcp_get.c
Fix coverity defects: zfs channel programs
2018-02-20 11:19:42 -08:00
zcp_global.c
OpenZFS 8600 - ZFS channel programs - snapshot
2018-02-08 15:29:24 -08:00
zcp_iter.c
OpenZFS 9337 - zfs get all is slow due to uncached metadata
2018-07-12 10:49:27 -07:00
zcp_synctask.c
OpenZFS 9166 - zfs storage pool checkpoint
2018-06-26 10:07:42 -07:00
zcp.c
OpenZFS 9424 - ztest failure: "unprotected error in call to Lua API (Invalid value type 'function' for key 'error')"
2018-07-10 21:29:23 -07:00
zfeature.c
Undo c89 workarounds to match with upstream
2017-11-04 13:25:13 -07:00
zfs_acl.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_byteswap.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_ctldir.c
Update zfs_admin_snapshot value (disabled)
2018-11-08 16:17:12 -08:00
zfs_debug.c
Fix dbgmsg printing in ztest and zdb
2018-10-24 14:36:50 -07:00
zfs_dir.c
Linux does not HAVE_DNLC
2018-10-17 10:30:08 -07:00
zfs_fm.c
Add zpool status -s (slow I/Os) and -p (parseable)
2018-11-08 16:47:24 -08:00
zfs_fuid.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_ioctl.c
zfs initialize performance enhancements
2019-01-07 11:03:08 -08:00
zfs_log.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_onexit.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_ratelimit.c
Change checksum & IO delay ratelimit values
2018-03-04 17:34:51 -08:00
zfs_replay.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_rlock.c
OpenZFS 9689 - zfs range lock code should not be zpl-specific
2018-10-11 10:19:33 -07:00
zfs_sa.c
Project Quota on ZFS
2018-02-13 14:54:54 -08:00
zfs_sysfs.c
OpenZFS 9102 - zfs should be able to initialize storage devices
2019-01-07 10:37:26 -08:00
zfs_vfsops.c
Linux 5.0 compat: Convert MS_* macros to SB_*
2019-01-28 10:11:39 -08:00
zfs_vnops.c
Fix error handling incallers of dbuf_hold_level()
2019-01-17 15:47:08 -08:00
zfs_znode.c
Linux does not HAVE_SMB_SHARE
2018-10-17 10:31:38 -07:00
zil.c
OpenZFS 9962 - zil_commit should omit cache thrash
2018-12-07 11:09:42 -08:00
zio_checksum.c
Undo c89 workarounds to match with upstream
2017-11-04 13:25:13 -07:00
zio_compress.c
OpenZFS 9403 - assertion failed in arc_buf_destroy()
2018-08-29 11:33:33 -07:00
zio_crypt.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zio_inject.c
Add libzutil for libzfs or libzpool consumers
2018-11-05 11:22:33 -08:00
zio.c
Minor spelling corrections
2019-01-13 10:11:52 -08:00
zle.c
Fix zle_decompress out of bound access
2018-02-09 10:08:05 -08:00
zpl_ctldir.c
RHEL 7.5 compat: FMODE_KABI_ITERATE
2018-05-02 15:01:24 -07:00
zpl_export.c
Use cstyle -cpP in make cstyle check
2016-12-12 10:46:26 -08:00
zpl_file.c
Direct IO support
2018-08-27 10:04:21 -07:00
zpl_inode.c
Linux 4.18 compat: inode timespec -> timespec64
2018-06-19 21:51:18 -07:00
zpl_super.c
Fix statfs(2) for 32-bit user space
2018-09-24 17:11:25 -07:00
zpl_xattr.c
Add missing checks to zpl_xattr_* functions
2018-08-02 14:03:56 -07:00
zrlock.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zthr.c
Don't acquire zthr_request_lock in zthr_wakeup
2019-01-30 12:31:16 -08:00
zvol.c
Fix bad kmem_free() in zvol_rename_minors_impl()
2019-01-23 11:38:05 -08:00