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53cf50e081
mirror_zfs/module/zfs
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Brian Behlendorf 53cf50e081 Set stat->st_dev and statfs->f_fsid 
Filesystems like ZFS must use what the kernel calls an anonymous super
block.  Basically, this is just a filesystem which is not backed by a
single block device.  Normally this block device's dev_t is stored in
the super block.  For anonymous super blocks a unique reserved dev_t
is assigned as part of get_sb().

This sb->s_dev must then be set in the returned stat structures as
stat->st_dev.  This allows userspace utilities to easily detect the
boundries of a specific filesystem.  Tools such as 'du' depend on this
for proper accounting.

Additionally, under OpenSolaris the statfs->f_fsid is set to the device
id.  To preserve consistency with OpenSolaris we also set the fsid to
the device id.  Other Linux filesystem (ext) set the fsid to a unique
value determined by the filesystems uuid.  This value is unique but
maintains no relationship to the device id.  This may be desirable
when exporting NFS filesystem because it minimizes to chance of a
client observing the same fsid from two different servers.

Closes #140
2011-03-07 16:06:22 -08:00
..
arc.c Use cv_timedwait_interruptible in arc 2010-12-14 10:06:44 -08:00
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 Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
dsl_prop.c Fix enum compiler warning 2011-02-23 12:52:51 -08:00
dsl_scan.c Suppress large kmem_alloc() warning. 2010-10-12 14:54:59 -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 Add Hooks for Linux File Operations 2011-02-10 09:27:21 -08:00
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 Add API to wait for pending commit callbacks 2011-02-16 11:20:06 -08:00
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 set block scheduler warnings 2011-02-25 11:37:11 -08:00
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 Add linux kernel module support 2010-08-31 13:41:58 -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 Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
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 Add the zpool and filesystem versions 2011-02-28 09:46:23 -08:00
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 Move cv_destroy() outside zp->z_range_lock() 2011-02-10 09:27:21 -08:00
zfs_sa.c Drop HAVE_XVATTR macros 2011-03-02 11:44:34 -08:00
zfs_vfsops.c Set stat->st_dev and statfs->f_fsid 2011-03-07 16:06:22 -08:00
zfs_vnops.c Set stat->st_dev and statfs->f_fsid 2011-03-07 16:06:22 -08:00
zfs_znode.c Drop HAVE_XVATTR macros 2011-03-02 11:44:34 -08:00
zil.c Add linux kernel memory support 2010-08-31 13:41:57 -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 Shorten zio_* thread names 2010-11-08 14:03:35 -08:00
zle.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zpl_file.c Linux 2.6.35 compat, fops->fsync() 2011-02-11 09:05:51 -08:00
zpl_inode.c Set stat->st_dev and statfs->f_fsid 2011-03-07 16:06:22 -08:00
zpl_super.c Linux 2.6.36 compat, sops->evict_inode() 2011-02-11 13:47:51 -08:00
zpl_xattr.c Linux 2.6.33 compat, get/set xattr callbacks 2011-02-11 10:41:00 -08:00
zrlock.c Export ZFS symbols needed by Lustre. 2010-09-17 16:24:15 -07:00
zvol.c Use udev to create /dev/zvol/[dataset_name] links 2011-02-25 09:43:19 -08:00