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df554c148e
mirror_zfs/module/zfs
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Brian Behlendorf df554c148e Fix 'zfs set volsize=N pool/dataset' 
This change fixes a kernel panic which would occur when resizing
a dataset which was not open.  The objset_t stored in the
zvol_state_t will be set to NULL when the block device is closed.
To avoid this issue we pass the correct objset_t as the third arg.

The code has also been updated to correctly notify the kernel
when the block device capacity changes.  For 2.6.28 and newer
kernels the capacity change will be immediately detected.  For
earlier kernels the capacity change will be detected when the
device is next opened.  This is a known limitation of older
kernels.

Online ext3 resize test case passes on 2.6.28+ kernels:
$ dd if=/dev/zero of=/tmp/zvol bs=1M count=1 seek=1023
$ zpool create tank /tmp/zvol
$ zfs create -V 500M tank/zd0
$ mkfs.ext3 /dev/zd0
$ mkdir /mnt/zd0
$ mount /dev/zd0 /mnt/zd0
$ df -h /mnt/zd0
$ zfs set volsize=800M tank/zd0
$ resize2fs /dev/zd0
$ df -h /mnt/zd0

Original-patch-by: Fajar A. Nugraha <github@fajar.net>
Closes #68
Closes #84
2011-05-02 08:54:40 -07:00
..
arc.c Enforce ARC meta-data limits 2011-04-21 13:49:31 -07:00
bplist.c Fix gcc missing parenthesis warnings 2010-08-31 08:38:35 -07:00
bpobj.c Update to onnv_147 2010-08-26 14:24:34 -07:00
dbuf.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
ddt_zap.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
ddt.c Add linux kernel memory support 2010-08-31 13:41:57 -07:00
dmu_diff.c Update to onnv_147 2010-08-26 14:24:34 -07:00
dmu_object.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
dmu_objset.c Merge branch 'zpl' 2011-02-18 09:31:25 -08:00
dmu_send.c Add linux kernel memory support 2010-08-31 13:41:57 -07:00
dmu_traverse.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
dmu_tx.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
dmu_zfetch.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
dmu.c Suppress large kmem_alloc() warning 2011-02-10 09:27:22 -08:00
dnode_sync.c Fix dbuf eviction assertion 2010-08-31 08:38:45 -07:00
dnode.c Quiet down very frequent large allocation warning in ZFS. 2010-09-17 16:24:15 -07:00
dsl_dataset.c Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
dsl_deadlist.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
dsl_deleg.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
dsl_dir.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
dsl_pool.c Fix gcc compiler warning, dsl_pool_create() 2011-04-19 09:04:51 -07:00
dsl_prop.c Fix enum compiler warning 2011-02-23 12:52:51 -08:00
dsl_scan.c Conserve stack in dsl_scan_visit() 2011-04-26 15:48:00 -07:00
dsl_synctask.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
fm.c Fix missing 'zpool events' 2010-10-12 14:55:03 -07:00
gzip.c Fix zmod.h usage in userspace 2010-08-31 08:38:46 -07:00
lzjb.c Fix stack lzjb 2010-08-31 08:38:49 -07:00
Makefile.in Implemented NFS export_operations. 2011-04-29 12:36:13 -07:00
metaslab.c Fix metaslab 2010-08-31 08:38:45 -07:00
refcount.c Fix gcc uninitialized variable warnings 2010-08-31 08:38:43 -07:00
rrwlock.c Enable rrwlock.c compilation 2010-12-07 16:05:25 -08:00
sa.c Enable zfs_znode compilation 2011-02-10 09:27:20 -08:00
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 Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
spa_errlog.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_history.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_misc.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa.c Increate zio write interrupt thread count. 2010-11-08 14:03:35 -08:00
space_map.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
txg.c Fix ASSERTION(!dsl_pool_sync_context(tx->tx_pool)) 2011-04-07 09:52:16 -07:00
uberblock.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
unique.c Fix gcc ident pragma warnings 2010-08-27 15:34:02 -07:00
vdev_cache.c Fix stack vdev_cache_read() 2010-08-31 08:38:49 -07:00
vdev_disk.c Fix spurious -EFAULT when setting I/O scheduler 2011-04-22 14:55:35 -07:00
vdev_file.c Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
vdev_label.c Fix gcc uninitialized variable warnings 2010-08-31 08:38:43 -07:00
vdev_mirror.c Fix gcc c90 compliance warnings 2010-08-27 15:28:32 -07:00
vdev_missing.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
vdev_queue.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
vdev_raidz.c Fix variables named current 2010-08-31 08:38:44 -07:00
vdev_root.c Fix gcc c90 compliance warnings 2010-08-27 15:28:32 -07:00
vdev.c Suppress 'vdev_metaslab_init' memory warning 2011-04-27 09:35:18 -07:00
zap_leaf.c Fix gcc uninitialized variable warnings 2010-08-31 08:38:43 -07:00
zap_micro.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
zap.c Fix rw_init() usage 2010-08-31 08:38:46 -07:00
zfs_acl.c Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
zfs_byteswap.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
zfs_debug.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zfs_dir.c Added missing initialization for va.va_dentry in zfs_get_xattrdir. 2011-04-19 13:57:41 -07:00
zfs_fm.c Initial zio delay timing 2010-10-12 14:55:02 -07:00
zfs_fuid.c Drop HAVE_XVATTR macros 2011-03-02 11:44:34 -08:00
zfs_ioctl.c Suppress 'zfs receive' memory warning 2011-04-20 10:22:31 -07:00
zfs_log.c Drop HAVE_XVATTR macros 2011-03-02 11:44:34 -08:00
zfs_onexit.c Add linux kernel device support 2010-08-31 13:41:50 -07:00
zfs_replay.c Use Linux ATTR_ versions 2011-03-03 11:29:15 -08:00
zfs_rlock.c Range lock performance improvements 2011-03-08 12:44:06 -08:00
zfs_sa.c Drop HAVE_XVATTR macros 2011-03-02 11:44:34 -08:00
zfs_vfsops.c Implemented NFS export_operations. 2011-04-29 12:36:13 -07:00
zfs_vnops.c Conserve stack in zfs_setattr() 2011-03-09 13:30:03 -08:00
zfs_znode.c Fixed a use-after-free bug in zfs_zget(). 2011-04-21 13:48:01 -07:00
zil.c Fix zvol deadlock 2011-04-26 12:56:35 -07:00
zio_checksum.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zio_compress.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zio_inject.c Update to onnv_147 2010-08-26 14:24:34 -07:00
zio.c Use KM_PUSHPAGE instead of KM_SLEEP 2011-03-22 12:14:55 -07:00
zle.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zpl_export.c Implemented NFS export_operations. 2011-04-29 12:36:13 -07:00
zpl_file.c Linux 2.6.29 compat, credentials 2011-03-22 12:15:54 -07:00
zpl_inode.c Call d_instantiate before unlocking inode 2011-04-07 09:51:57 -07:00
zpl_super.c Implemented NFS export_operations. 2011-04-29 12:36:13 -07:00
zpl_xattr.c Truncate the xattr znode when updating existing attributes. 2011-04-19 14:14:40 -07:00
zrlock.c Export ZFS symbols needed by Lustre. 2010-09-17 16:24:15 -07:00
zvol.c Fix 'zfs set volsize=N pool/dataset' 2011-05-02 08:54:40 -07:00