Brian Behlendorf 4dd18932ba Avoid 128K kmem allocations in mzap_upgrade() ... As originally implemented the mzap_upgrade() function will perform up to SPA_MAXBLOCKSIZE allocations using kmem_alloc(). These large allocations can potentially block indefinitely if contiguous memory is not available. Since this allocation is done under the zap->zap_rwlock it can appear as if there is a deadlock in zap_lockdir(). This is shown below. The optimal fix for this would be to rework mzap_upgrade() such that no large allocations are required. This could be done but it would result in us diverging further from the other implementations. Therefore I've opted against doing this unless it becomes absolutely necessary. Instead mzap_upgrade() has been updated to use zio_buf_alloc() which can reliably provide buffers of up to SPA_MAXBLOCKSIZE. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Richard Yao <ryao@gentoo.org> Close #2580		2014-08-11 16:10:32 -07:00
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arc.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
blkptr.c	Illumos 4757, 4913	2014-08-01 14:28:05 -07:00
bplist.c	Illumos #3464	2013-09-04 16:01:24 -07:00
bpobj.c	Illumos 4757, 4913	2014-08-01 14:28:05 -07:00
bptree.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
dbuf_stats.c	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
dbuf.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
ddt_zap.c	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
ddt.c	Illumos #4374	2014-07-30 09:20:35 -07:00
dmu_diff.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
dmu_object.c	Illumos 4171, 4172	2014-07-25 16:40:07 -07:00
dmu_objset.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
dmu_send.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
dmu_traverse.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
dmu_tx.c	Improve reporting of tx assignment wait times	2014-03-04 12:22:24 -08:00
dmu_zfetch.c	Use enum type(zfetch_dirn_t) instead	2014-01-23 12:56:33 -08:00
dmu.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
dnode_sync.c	Illumos 4757, 4913	2014-08-01 14:28:05 -07:00
dnode.c	Illumos 4757, 4913	2014-08-01 14:28:05 -07:00
dsl_bookmark.c	Illumos 4368, 4369.	2014-07-29 10:55:29 -07:00
dsl_dataset.c	Use KM_PUSHPAGE in dsl_dataset_rollback_check()	2014-08-06 16:09:28 -07:00
dsl_deadlist.c	Illumos #3104: eliminate empty bpobjs	2013-01-08 10:35:43 -08:00
dsl_deleg.c	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
dsl_destroy.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
dsl_dir.c	Illumos 4171, 4172	2014-07-25 16:40:07 -07:00
dsl_pool.c	Illumos 4390 - I/O errors can corrupt space map when deleting fs/vol	2014-08-04 11:50:52 -07:00
dsl_prop.c	Check the dataset type more rigorously when fetching properties.	2014-05-06 10:41:46 -07:00
dsl_scan.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
dsl_synctask.c	Export symbols dsl_sync_task{_nowait}	2014-03-07 10:01:36 -08:00
dsl_userhold.c	Illumos 4757, 4913	2014-08-01 14:28:05 -07:00
fm.c	Add zpool_events_seek() functionality	2014-03-31 16:10:57 -07:00
gzip.c	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
lz4.c	Illumos #4936 fix potential overflow in lz4	2014-07-01 14:10:47 -07:00
lzjb.c	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
Makefile.in	Illumos 4757, 4913	2014-08-01 14:28:05 -07:00
metaslab.c	Illumos 4757, 4913	2014-08-01 14:28:05 -07:00
range_tree.c	Illumos #4374	2014-07-30 09:20:35 -07:00
refcount.c	Illumos #3464	2013-09-04 16:01:24 -07:00
rrwlock.c	Fix several new KM_SLEEP warnings	2013-09-25 15:44:22 -07:00
sa.c	Calculate header size correctly in sa_find_sizes()	2014-05-19 11:55:50 -07:00
sha256.c	Add linux sha2 support	2010-08-31 13:41:59 -07:00
spa_boot.c	Add linux kernel module support	2010-08-31 13:41:58 -07:00
spa_config.c	Implement -t option to zpool import for temporary pool names	2014-03-20 12:05:30 -07:00
spa_errlog.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
spa_history.c	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
spa_misc.c	Illumos 4757, 4913	2014-08-01 14:28:05 -07:00
spa_stats.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
spa.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
space_map.c	Illumos #4374	2014-07-30 09:20:35 -07:00
space_reftree.c	Illumos #4101, #4102, #4103, #4105, #4106	2014-07-22 09:39:16 -07:00
txg.c	Use ddi_time_after and friends to compare time	2014-04-14 13:27:56 -07:00
uberblock.c	Illumos #3598	2013-10-31 14:58:04 -07:00
unique.c	Switch KM_SLEEP to KM_PUSHPAGE	2012-08-27 12:01:37 -07:00
vdev_cache.c	Illumos 4370, 4371	2014-07-28 14:29:58 -07:00
vdev_disk.c	Illumos #4374	2014-07-30 09:20:35 -07:00
vdev_file.c	Honor zfs_nocacheflush for file vdevs	2014-05-19 13:30:48 -07:00
vdev_label.c	Illumos #4101, #4102, #4103, #4105, #4106	2014-07-22 09:39:16 -07:00
vdev_mirror.c	Illumos #4045 write throttle & i/o scheduler performance work	2013-12-06 09:32:43 -08:00
vdev_missing.c	Illumos #3598	2013-10-31 14:58:04 -07:00
vdev_queue.c	Avoid dynamic allocation of 'search zio'	2014-08-11 08:44:54 -07:00
vdev_raidz.c	Illumos #4045 write throttle & i/o scheduler performance work	2013-12-06 09:32:43 -08:00
vdev_root.c	Illumos #3598	2013-10-31 14:58:04 -07:00
vdev.c	Illumos #4374	2014-07-30 09:20:35 -07:00
zap_leaf.c	Illumos #4374	2014-07-30 09:20:35 -07:00
zap_micro.c	Avoid 128K kmem allocations in mzap_upgrade()	2014-08-11 16:10:32 -07:00
zap.c	Illumos #4374	2014-07-30 09:20:35 -07:00
zfeature_common.c	Illumos 4757, 4913	2014-08-01 14:28:05 -07:00
zfeature.c	Illumos 4370, 4371	2014-07-28 14:29:58 -07:00
zfs_acl.c	Allow chown/chgrp when no ACL SAs exist.	2014-01-23 11:07:29 -08:00
zfs_byteswap.c	Add linux kernel module support	2010-08-31 13:41:58 -07:00
zfs_ctldir.c	Illumos 4368, 4369.	2014-07-29 10:55:29 -07:00
zfs_debug.c	Illumos 4390 - I/O errors can corrupt space map when deleting fs/vol	2014-08-04 11:50:52 -07:00
zfs_dir.c	Illumos #4347 ZPL can use dmu_tx_assign(TXG_WAIT)	2013-12-06 09:30:51 -08:00
zfs_fm.c	Add automatic hot spare functionality	2014-04-02 13:10:08 -07:00
zfs_fuid.c	Illumos #3522	2013-10-30 14:51:27 -07:00
zfs_ioctl.c	Illumos 4757, 4913	2014-08-01 14:28:05 -07:00
zfs_log.c	Only commit the ZIL once in zpl_writepages() (msync() case).	2013-11-23 15:08:29 -08:00
zfs_onexit.c	Illumos #3598	2013-10-31 14:58:04 -07:00
zfs_replay.c	Illumos #3598	2013-10-31 14:58:04 -07:00
zfs_rlock.c	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
zfs_sa.c	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
zfs_vfsops.c	Propagate errors when registering "relatime" property callback.	2014-02-12 09:38:28 -08:00
zfs_vnops.c	Fix zil_commit() NULL dereference	2014-07-17 15:15:07 -07:00
zfs_znode.c	Illumos 4370, 4371	2014-07-28 14:29:58 -07:00
zil.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
zio_checksum.c	Illumos 4757, 4913	2014-08-01 14:28:05 -07:00
zio_compress.c	Illumos 4757, 4913	2014-08-01 14:28:05 -07:00
zio_inject.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
zio.c	Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t	2014-08-06 14:48:41 -07:00
zle.c	Update core ZFS code from build 121 to build 141.	2010-05-28 13:45:14 -07:00
zpl_ctldir.c	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
zpl_export.c	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
zpl_file.c	Fix zil_commit() NULL dereference	2014-07-17 15:15:07 -07:00
zpl_inode.c	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
zpl_super.c	Prune metadata from ghost lists in arc_adjust_meta	2014-02-21 16:10:49 -08:00
zpl_xattr.c	Fix zil_commit() NULL dereference	2014-07-17 15:15:07 -07:00
zrlock.c	Export ZFS symbols needed by Lustre.	2010-09-17 16:24:15 -07:00
zvol.c	Use long holds in zvol_set_volsize()	2014-01-14 14:46:12 -08:00