AuxXxilium/linux_dsm_epyc7002
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cea67ab92d
linux_dsm_epyc7002/fs/btrfs
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Jeff Mahoney cea67ab92d btrfs: clean the old superblocks before freeing the device 
btrfs_rm_device frees the block device but then re-opens it using
the saved device name.  A race exists between the close and the
re-open that allows the block size to be changed.  The result
is getting stuck forever in the reclaim loop in __getblk_slow.

This patch moves the superblock cleanup before closing the block
device, which is also consistent with other callers.  We also don't
need a private copy of dev_name as the whole routine operates under
the uuid_mutex.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2016-09-26 18:08:44 +02:00
..
tests Btrfs: add a flags field to btrfs_fs_info 2016-09-26 17:59:49 +02:00
acl.c btrfs: Replace -ENOENT by -ERANGE in btrfs_get_acl() 2016-07-26 13:52:25 +02:00
async-thread.c btrfs: plumb fs_info into btrfs_work 2016-07-26 13:53:15 +02:00
async-thread.h btrfs: plumb fs_info into btrfs_work 2016-07-26 13:53:15 +02:00
backref.c btrfs: fix check_shared for fiemap ioctl 2016-09-26 17:59:49 +02:00
backref.h
btrfs_inode.h Btrfs: add a flags field to btrfs_fs_info 2016-09-26 17:59:49 +02:00
check-integrity.c btrfs: squash lines for simple wrapper functions 2016-09-26 18:08:38 +02:00
check-integrity.h fs: have submit_bh users pass in op and flags separately 2016-06-07 13:41:38 -06:00
compression.c Merge branch 'for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs 2016-08-04 19:56:16 -04:00
compression.h btrfs: move btrfs_compression_type to compression.h 2016-03-11 17:12:46 +01:00
ctree.c btrfs: squash lines for simple wrapper functions 2016-09-26 18:08:38 +02:00
ctree.h Btrfs: add a flags field to btrfs_fs_info 2016-09-26 17:59:49 +02:00
dedupe.h btrfs: expand cow_file_range() to support in-band dedup and subpage-blocksize 2016-07-26 13:52:25 +02:00
delayed-inode.c btrfs: squash lines for simple wrapper functions 2016-09-26 18:08:38 +02:00
delayed-inode.h Btrfs: fix ->iterate_shared() by upgrading i_rwsem for delayed nodes 2016-06-25 06:20:10 -07:00
delayed-ref.c Btrfs: add a flags field to btrfs_fs_info 2016-09-26 17:59:49 +02:00
delayed-ref.h Btrfs: remove unused function btrfs_add_delayed_qgroup_reserve() 2016-08-03 11:02:51 +01:00
dev-replace.c btrfs: btrfs_test_opt and friends should take a btrfs_fs_info 2016-07-26 13:53:16 +02:00
dev-replace.h btrfs: refactor btrfs_dev_replace_start for reuse 2016-04-28 10:59:13 +02:00
dir-item.c
disk-io.c Btrfs: improve check_node to avoid reading corrupted nodes 2016-09-26 18:05:28 +02:00
disk-io.h Btrfs: fix memory leak of block group cache 2016-09-26 17:59:49 +02:00
export.c BTRFS: support NFSv2 export 2015-10-06 06:55:23 -07:00
export.h
extent_io.c Btrfs: memset to avoid stale content in btree node block 2016-09-26 18:03:47 +02:00
extent_io.h Btrfs: kill the start argument to read_extent_buffer_pages 2016-09-26 17:59:49 +02:00
extent_map.c btrfs: Fix slab accounting flags 2016-07-26 13:52:25 +02:00
extent_map.h btrfs: cleanup, stop casting for extent_map->lookup everywhere 2016-01-15 19:22:28 +01:00
extent-tree.c Btrfs: kill BUG_ON in run_delayed_tree_ref 2016-09-26 18:08:44 +02:00
file-item.c Btrfs: fix __MAX_CSUM_ITEMS 2016-08-03 14:08:37 -07:00
file.c Btrfs: kill BUG_ON()'s in btrfs_mark_extent_written 2016-09-26 17:59:49 +02:00
free-space-cache.c btrfs: btrfs_abort_transaction, drop root parameter 2016-07-26 13:54:26 +02:00
free-space-cache.h btrfs: fix string and comment grammatical issues and typos 2016-05-25 22:35:14 +02:00
free-space-tree.c Btrfs: add a flags field to btrfs_fs_info 2016-09-26 17:59:49 +02:00
free-space-tree.h Btrfs: implement the free space B-tree 2015-12-17 12:16:47 -08:00
hash.c btrfs: advertise which crc32c implementation is being used at module load 2016-06-06 14:08:28 +02:00
hash.h btrfs: advertise which crc32c implementation is being used at module load 2016-06-06 14:08:28 +02:00
inode-item.c btrfs: rename btrfs_std_error to btrfs_handle_fs_error 2016-04-28 10:36:54 +02:00
inode-map.c btrfs: update btrfs_space_info's bytes_may_use timely 2016-08-25 03:58:26 -07:00
inode-map.h Btrfs: Initialize btrfs_root->highest_objectid when loading tree root and subvolume roots 2016-01-15 19:25:02 +01:00
inode.c Btrfs: add a flags field to btrfs_fs_info 2016-09-26 17:59:49 +02:00
ioctl.c btrfs: ensure that file descriptor used with subvol ioctls is a dir 2016-09-21 17:22:16 -07:00
Kconfig
locking.c btrfs: cleanup, remove stray return statements 2016-01-07 14:30:52 +01:00
locking.h
lzo.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
Makefile Btrfs: add free space tree sanity tests 2015-12-17 12:16:47 -08:00
math.h btrfs: cleanup 64bit/32bit divs, compile time constants 2015-03-03 17:23:57 +01:00
ordered-data.c btrfs: Fix slab accounting flags 2016-07-26 13:52:25 +02:00
ordered-data.h Btrfs: fix race setting block group readonly during device replace 2016-05-30 12:58:21 +01:00
orphan.c
print-tree.c Btrfs: add error handling for extent buffer in print tree 2016-09-26 18:04:01 +02:00
print-tree.h
props.c btrfs: simpilify btrfs_subvol_inherit_props 2016-07-26 13:54:22 +02:00
props.h
qgroup.c Btrfs: add a flags field to btrfs_fs_info 2016-09-26 17:59:49 +02:00
qgroup.h btrfs: qgroup: Refactor btrfs_qgroup_insert_dirty_extent() 2016-08-25 03:58:21 -07:00
raid56.c Btrfs: remove BUG() in raid56 2016-09-26 17:59:49 +02:00
raid56.h Btrfs: add RAID 5/6 BTRFS_RBIO_REBUILD_MISSING operation 2015-08-09 07:34:26 -07:00
rcu-string.h
reada.c Btrfs: fix race between readahead and device replace/removal 2016-05-30 12:58:18 +01:00
relocation.c Btrfs: don't leak reloc root nodes on error 2016-09-26 18:08:44 +02:00
root-tree.c btrfs: don't create or leak aliased root while cleaning up orphans 2016-08-25 03:58:29 -07:00
scrub.c Merge branch 'for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs 2016-08-04 19:56:16 -04:00
send.c btrfs: squash lines for simple wrapper functions 2016-09-26 18:08:38 +02:00
send.h Btrfs: use linux/sizes.h to represent constants 2016-01-07 14:38:02 +01:00
struct-funcs.c btrfs: fix string and comment grammatical issues and typos 2016-05-25 22:35:14 +02:00
super.c Btrfs: add a flags field to btrfs_fs_info 2016-09-26 17:59:49 +02:00
sysfs.c btrfs: create example debugfs file only in debugging build 2016-09-26 17:59:49 +02:00
sysfs.h btrfs: sysfs: introduce helper for syncing bits with sysfs files 2016-01-21 18:50:40 +01:00
transaction.c Btrfs: remove BUG_ON in start_transaction 2016-09-26 18:04:01 +02:00
transaction.h btrfs: add btrfs_trans_handle->fs_info pointer 2016-07-26 13:54:26 +02:00
tree-defrag.c Btrfs: fix locking bugs when defragging leaves 2015-12-18 02:51:32 +00:00
tree-log.c Btrfs: add a flags field to btrfs_fs_info 2016-09-26 17:59:49 +02:00
tree-log.h Btrfs: fix lockdep warning on deadlock against an inode's log mutex 2016-08-25 03:58:32 -07:00
ulist.c btrfs: fix string and comment grammatical issues and typos 2016-05-25 22:35:14 +02:00
ulist.h btrfs: ulist: Add ulist_del() function. 2015-06-10 09:26:17 -07:00
uuid-tree.c
volumes.c btrfs: clean the old superblocks before freeing the device 2016-09-26 18:08:44 +02:00
volumes.h btrfs: use bio fields for op and flags 2016-06-07 13:41:38 -06:00
xattr.c switch xattr_handler->set() to passing dentry and inode separately 2016-05-27 15:39:43 -04:00
xattr.h btrfs: Switch to generic xattr handlers 2016-05-17 19:17:09 -04:00
zlib.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00