Brian Behlendorf 74328ee18f Fix zfs_putpage() lock inversion ...

There exists a lock inversions involving the zfs range lock and the
individual page writeback bits which can result in a deadlock.  To
prevent this we must always manipulate the writeback bit while
holding the range lock.  The exact deadlock is as follows:

------ Process A ------        ------ Process B ------
zpl_writepages                 zpl_fallocate
write_cache_pages              zpl_fallocate_common
zpl_putpage                    zfs_space
zfs_putpage (set bit)          zfs_freesp
zfs_range_lock (wait on lock)  zfs_free_range (take lock)
[has not yet initiated I/O,    truncate_inode_pages_range
the bit will not be cleared]   wait_on_page_writeback (wait on bit)

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Richard Yao <richard.yao@clusterhq.com>
Issue #2976

2014-12-22 09:31:56 -08:00

..

arc.c

Explicitly include SPL compat headers

2014-11-19 12:30:39 -05:00

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

Fix dprintf format specifiers

2014-11-17 11:13:45 -08:00

dbuf_stats.c

Fix improper null-byte termination handling

2014-11-17 15:28:59 -08:00

dbuf.c

Undirty freed spill blocks.

2014-11-17 11:25:48 -08:00

ddt_zap.c

cstyle: Resolve C style issues

2013-12-18 16:46:35 -08:00

ddt.c

Change the default 'zfs_dedup_prefetch' value to '0'

2014-09-04 09:50:45 -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 3693 - restore_object uses at least two transactions to restore an object

2014-10-21 15:26:50 -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 5162 - zfs recv should use loaned arc buffer to avoid copy

2014-10-21 16:32:11 -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 5162 - zfs recv should use loaned arc buffer to avoid copy

2014-10-21 16:32:11 -07:00

dnode_sync.c

Illumos 5117 - spacemap reallocation can cause corruption

2014-09-08 09:42:39 -07:00

dnode.c

Illumos 5139 - SEEK_HOLE failed to report a hole at end of file

2014-09-23 10:38:45 -07:00

dsl_bookmark.c

Illumos 4368, 4369.

2014-07-29 10:55:29 -07:00

dsl_dataset.c

Illumos 5150 - zfs clone of a defer_destroy snapshot causes strangeness

2014-10-21 15:26:58 -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

Correct error returns to unify cross-pool operation error handling

2014-12-19 10:51:24 -08:00

dsl_pool.c

Illumos 4958 zdb trips assert on pools with ashift >= 0xe

2014-10-23 15:30:32 -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

Prevent ZFS leaking pool free space

2014-11-17 11:35:38 -08:00

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

Fixed memory leaks in zevent handling

2014-08-20 10:45:16 -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

Swap DTRACE_PROBE* with Linux tracepoints

2014-11-17 11:13:55 -08:00

metaslab.c

Illumos 5213 - panic in metaslab_init due to space_map_open returning ENXIO

2014-11-14 15:37:45 -08:00

range_tree.c

Illumos 4976-4984 - metaslab improvements

2014-08-18 08:40:49 -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

Update utsname support

2014-10-17 14:58:57 -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

Update utsname support

2014-10-17 14:58:57 -07:00

spa_misc.c

Swap DTRACE_PROBE* with Linux tracepoints

2014-11-17 11:13:55 -08:00

spa_stats.c

Fix improper null-byte termination handling

2014-11-17 15:28:59 -08:00

spa.c

Illumos 4924 - LZ4 Compression for metadata

2014-10-20 16:17:49 -07:00

space_map.c

Fix dprintf format specifiers

2014-11-17 11:13:45 -08:00

space_reftree.c

Illumos #4101, #4102, #4103, #4105, #4106

2014-07-22 09:39:16 -07:00

trace.c

Swap DTRACE_PROBE* with Linux tracepoints

2014-11-17 11:13:55 -08:00

txg.c

Illumos 4753 - increase number of outstanding async writes when sync task is waiting

2014-09-23 13:50:55 -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

bio_alloc() with __GFP_WAIT never returns NULL

2014-11-19 12:50:49 -05:00

vdev_file.c

Honor zfs_nocacheflush for file vdevs

2014-05-19 13:30:48 -07:00

vdev_label.c

Fix function call with uninitialized value in vdev_inuse

2014-09-23 10:32:45 -07:00

vdev_mirror.c

Handle NULL mirror child vdev

2014-10-17 14:59:05 -07:00

vdev_missing.c

Illumos #3598

2013-10-31 14:58:04 -07:00

vdev_queue.c

Illumos 4753 - increase number of outstanding async writes when sync task is waiting

2014-09-23 13:50:55 -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 5213 - panic in metaslab_init due to space_map_open returning ENXIO

2014-11-14 15:37:45 -08:00

zap_leaf.c

Illumos #4374

2014-07-30 09:20:35 -07:00

zap_micro.c

Add object type checking to zap_lockdir()

2014-09-08 09:15:38 -07:00

zap.c

Fix dprintf format specifiers

2014-11-17 11:13:45 -08:00

zfeature_common.c

Illumos 4924 - LZ4 Compression for metadata

2014-10-20 16:17:49 -07:00

zfeature.c

Illumos 4370, 4371

2014-07-28 14:29:58 -07:00

zfs_acl.c

Don't perform ACL-to-mode translation on empty ACL

2014-10-21 09:23:27 -07:00

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

Swap DTRACE_PROBE* with Linux tracepoints

2014-11-17 11:13:55 -08:00

zfs_dir.c

Revert "Revert "Revert "Fix unlink/xattr deadlock"""

2014-08-11 16:12:36 -07:00

zfs_fm.c

Fixed memory leaks in zevent handling

2014-08-20 10:45:16 -07:00

zfs_fuid.c

Illumos #3522

2013-10-30 14:51:27 -07:00

zfs_ioctl.c

Explicitly include SPL compat headers

2014-11-19 12:30:39 -05:00

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

Linux AIO Support

2014-09-05 15:11:43 -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

Fix dprintf format specifiers

2014-11-17 11:13:45 -08:00

zfs_vnops.c

Fix zfs_putpage() lock inversion

2014-12-22 09:31:56 -08:00

zfs_znode.c

Remove checks for mandatory locks

2014-10-22 11:06:53 -07:00

zil.c

Export symbols for ZIL interface

2014-11-14 14:39:43 -08:00

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 4958 zdb trips assert on pools with ashift >= 0xe

2014-10-23 15:30:32 -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

Suppress AIO kmem warnings

2014-10-20 16:10:25 -07:00

zpl_inode.c

cstyle: Resolve C style issues

2013-12-18 16:46:35 -08:00

zpl_super.c

Remove shrink_dcache_memory() and shrink_icache_memory()

2014-10-17 14:58:50 -07:00

zpl_xattr.c

Linux AIO Support

2014-09-05 15:11:43 -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