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linux/fs/btrfs
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Lukas Czerner b8b8ff590f btrfs: Notify udev when removing device 
Currently udev does not know about the device being removed from the
file system. This may result in the situation where we're unable to
mount the file system by UUID or by LABEL because the by-uuid and
by-label links may still point to the device which is no longer part of
the btrfs file system and hence does not have any btrfs super block.

It can be easily reproduced by the following:

mkfs.btrfs -L bugfs /dev/loop[0-6]
mount /dev/loop0 /mnt/test
btrfs device delete /dev/loop0 /mnt/test
umount /mnt/test

mount LABEL=bugfs /mnt/test <---- this fails

then see:

ls -l /dev/disk/by-label/bugfs

which will still point to the /dev/loop0

We did not noticed this before because libblkid would send the udev
event for us when it notice that the link does not fit the reality,
however it does not do that anymore and completely relies on udev
information.

Fix this by sending the KOBJ_CHANGE event to the bdev kobject after
successful device removal.

Note that this does not affect device addition, because we will open the
device prior the addition from userspace and udev will notice that and
reread the device afterwards.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
 		2012-12-16 20:46:21 -05:00
..
Kconfig Btrfs: add config option to enable btrfs integrity check 2011-12-21 19:14:16 +01:00
Makefile Btrfs: add new sources for device replace code 2012-12-12 17:15:41 -05:00
acl.c Btrfs: skip adding an acl attribute if we don't have to 2012-12-16 20:46:15 -05:00
async-thread.c Btrfs: call the ordered free operation without any locks held 2012-07-25 16:15:07 -04:00
async-thread.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
backref.c Btrfs: merge inode_list in __merge_refs 2012-12-12 17:15:27 -05:00
backref.h Btrfs: extended inode refs support for send mechanism 2012-10-25 15:45:16 -04:00
btrfs_inode.h Btrfs: fix a bug in checking whether a inode is already in log 2012-10-01 15:19:06 -04:00
check-integrity.c Btrfs: fix race in check-integrity caused by usage of bitfield 2012-12-16 20:46:13 -05:00
check-integrity.h Btrfs: add optional integrity check code 2011-12-21 19:14:09 +01:00
compat.h
…
compression.c Btrfs: handle errors from btrfs_map_bio() everywhere 2012-12-12 17:15:40 -05:00
compression.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
ctree.c fs/btrfs: drop if around WARN_ON 2012-12-12 17:15:24 -05:00
ctree.h Btrfs: restructure btrfs_run_defrag_inodes() 2012-12-16 20:46:12 -05:00
delayed-inode.c Btrfs: cleanup for btrfs_btree_balance_dirty 2012-12-12 17:15:28 -05:00
delayed-inode.h Btrfs: flush delayed inodes if we're short on space 2012-07-23 15:41:40 -04:00
delayed-ref.c Btrfs: allow delayed refs to be merged 2012-08-28 16:53:38 -04:00
delayed-ref.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-10-01 09:06:36 -07:00
dev-replace.c Btrfs: add new sources for device replace code 2012-12-12 17:15:41 -05:00
dev-replace.h Btrfs: add new sources for device replace code 2012-12-12 17:15:41 -05:00
dir-item.c btrfs: replace many BUG_ONs with proper error handling 2012-03-22 11:52:54 +01:00
disk-io.c Btrfs: restructure btrfs_run_defrag_inodes() 2012-12-16 20:46:12 -05:00
disk-io.h Btrfs: cleanup for btrfs_btree_balance_dirty 2012-12-12 17:15:28 -05:00
export.c ->encode_fh() API change 2012-05-29 23:28:33 -04:00
export.h
…
extent-tree.c Btrfs: fix missing reserved space release in error path of delalloc reservation 2012-12-16 20:46:18 -05:00
extent_io.c Btrfs: handle errors from btrfs_map_bio() everywhere 2012-12-12 17:15:40 -05:00
extent_io.h Btrfs: pass fs_info to btrfs_map_block() instead of mapping_tree 2012-12-12 17:15:34 -05:00
extent_map.c Btrfs: do not hold the write_lock on the extent tree while logging 2012-10-04 09:39:58 -04:00
extent_map.h Btrfs: do not hold the write_lock on the extent tree while logging 2012-10-04 09:39:58 -04:00
file-item.c Btrfs: fix wrong file extent length 2012-12-12 17:15:21 -05:00
file.c Btrfs: punch hole past the end of the file 2012-12-16 20:46:20 -05:00
free-space-cache.c Btrfs: use ctl->unit for free space calculation instead of block_group->sectorsize 2012-12-16 20:46:17 -05:00
free-space-cache.h btrfs: remove all unused functions 2011-05-06 12:34:03 +02:00
hash.h btrfs: extended inode refs 2012-10-09 09:14:45 -04:00
inode-item.c btrfs: extended inode refs 2012-10-09 09:14:45 -04:00
inode-map.c Btrfs: improve the noflush reservation 2012-12-11 13:31:31 -05:00
inode-map.h Btrfs: Support reading/writing on disk free ino cache 2011-04-25 16:46:11 +08:00
inode.c Btrfs: fix wrong return value of btrfs_truncate_page() 2012-12-16 20:46:20 -05:00
ioctl.c Btrfs: get write access for qgroup operations 2012-12-16 20:46:11 -05:00
ioctl.h Btrfs: add support for device replace ioctls 2012-12-16 20:46:06 -05:00
locking.c Btrfs: fix a misplaced address operator in a condition 2012-08-28 16:53:23 -04:00
locking.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
lzo.c btrfs: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:21 +08:00
math.h Btrfs: cleanup duplicated division functions 2012-12-11 13:31:30 -05:00
ordered-data.c Btrfs: cleanup for btrfs_wait_order_range 2012-12-12 17:15:19 -05:00
ordered-data.h Btrfs: make ordered extent be flushed by multi-task 2012-12-11 13:31:38 -05:00
orphan.c btrfs: replace many BUG_ONs with proper error handling 2012-03-22 11:52:54 +01:00
print-tree.c Btrfs: introduce a btrfs_dev_replace_item type 2012-12-12 17:15:38 -05:00
print-tree.h
…
qgroup.c Btrfs: fix memory leak in btrfs_quota_enable() 2012-10-25 15:45:43 -04:00
rcu-string.h Btrfs: use rcu to protect device->name 2012-06-14 21:29:16 -04:00
reada.c Btrfs: introduce GET_READ_MIRRORS functionality for btrfs_map_block() 2012-12-12 17:15:43 -05:00
relocation.c Btrfs: cleanup for btrfs_btree_balance_dirty 2012-12-12 17:15:28 -05:00
root-tree.c btrfs: move transaction aborts to the point of failure 2012-10-08 20:09:02 -04:00
scrub.c Btrfs: fix a scrub regression in case of write errors 2012-12-16 20:46:14 -05:00
send.c Btrfs: Send: preserve ownership (uid and gid) also for symlinks. 2012-10-25 15:47:31 -04:00
send.h Btrfs: write_buf is now callable outside send.c 2012-10-04 09:39:55 -04:00
struct-funcs.c Btrfs: rewrite BTRFS_SETGET_FUNCS 2012-07-23 16:28:06 -04:00
super.c Btrfs: use slabs for auto defrag allocation 2012-12-16 20:46:11 -05:00
sysfs.c btrfs: Remove unused sysfs code 2011-06-17 14:54:18 -04:00
transaction.c Btrfs: fix wrong return value of btrfs_wait_for_commit() 2012-12-16 20:46:08 -05:00
transaction.h Btrfs: improve the noflush reservation 2012-12-11 13:31:31 -05:00
tree-defrag.c btrfs: drop unused parameter from btrfs_release_path 2011-05-02 13:57:22 +02:00
tree-log.c Btrfs: fix missing log when BTRFS_INODE_NEEDS_FULL_SYNC is set 2012-12-12 17:15:22 -05:00
tree-log.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
ulist.c Btrfs: make aux field of ulist 64 bit 2012-10-01 15:18:53 -04:00
ulist.h Btrfs: make aux field of ulist 64 bit 2012-10-01 15:18:53 -04:00
version.h
…
volumes.c btrfs: Notify udev when removing device 2012-12-16 20:46:21 -05:00
volumes.h Btrfs: change core code of btrfs to support the device replace operations 2012-12-12 17:15:42 -05:00
xattr.c Btrfs: don't add a NULL extended attribute 2012-12-16 20:46:15 -05:00
xattr.h
…
zlib.c btrfs: fix message printing 2012-10-09 09:19:57 -04:00