Sage Weil 15e7000095 Btrfs: avoid BUG when dropping root and reference in same transaction ... If btrfs_ioctl_snap_destroy() deletes a snapshot but finishes with end_transaction(), the cleaner kthread may come in and drop the root in the same transaction. If that's the case, the root's refs still == 1 in the tree when btrfs_del_root() deletes the item, because commit_fs_roots() hasn't updated it yet (that happens during the commit). This wasn't a problem before only because btrfs_ioctl_snap_destroy() would commit the transaction before dropping the dentry reference, so the dead root wouldn't get queued up until after the fs root item was updated in the btree. Since it is not an error to drop the root reference and the root in the same transaction, just drop the BUG_ON() in btrfs_del_root(). Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Chris Mason <chris.mason@oracle.com>		2010-06-11 15:57:39 -04:00
..
acl.c	Btrfs: prohibit a operation of changing acl's mask when noacl mount option used	2010-06-11 15:57:38 -04:00
async-thread.c	Btrfs: don't walk around with task->state != TASK_RUNNING	2010-05-25 10:34:58 -04:00
async-thread.h	Btrfs: fix deadlock on async thread startup	2009-10-05 09:44:45 -04:00
btrfs_inode.h	Btrfs: Metadata reservation for orphan inodes	2010-05-25 10:34:52 -04:00
compat.h	Btrfs: drop remaining LINUX_KERNEL_VERSION checks and compat code	2009-01-06 09:38:55 -05:00
compression.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2010-04-05 13:21:15 -07:00
compression.h	Btrfs: Add zlib compression support	2008-10-29 14:49:59 -04:00
ctree.c	Btrfs: Fix block generation verification race	2010-05-26 21:35:33 -04:00
ctree.h	Btrfs: add basic DIO read/write support	2010-05-25 10:34:57 -04:00
delayed-ref.c	Btrfs: Integrate metadata reservation with start_transaction	2010-05-25 10:34:50 -04:00
delayed-ref.h	Btrfs: Integrate metadata reservation with start_transaction	2010-05-25 10:34:50 -04:00
dir-item.c	Btrfs: Pass transaction handle to security and ACL initialization functions	2009-12-17 12:33:34 -05:00
disk-io.c	Btrfs: btrfs_read_fs_root_no_name() returns ERR_PTRs	2010-06-11 15:57:36 -04:00
disk-io.h	Btrfs: use async helpers for DIO write checksumming	2010-05-25 10:34:58 -04:00
export.c	Btrfs: change how we mount subvolumes	2010-03-15 10:58:13 -04:00
export.h	NFS support for btrfs - v3	2008-09-25 11:04:06 -04:00
extent-tree.c	Btrfs: Fix BUG_ON for fs converted from extN	2010-06-11 15:48:35 -04:00
extent_io.c	Btrfs: rework O_DIRECT enospc handling	2010-05-25 21:52:08 -04:00
extent_io.h	Btrfs: rework O_DIRECT enospc handling	2010-05-25 21:52:08 -04:00
extent_map.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
extent_map.h	Btrfs: search for an allocation hint while filling file COW	2009-09-18 16:08:52 -04:00
file-item.c	Btrfs: add basic DIO read/write support	2010-05-25 10:34:57 -04:00
file.c	Btrfs: fix remap_file_pages error	2010-06-11 11:46:12 -04:00
free-space-cache.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
free-space-cache.h	Btrfs: use hybrid extents+bitmap rb tree for free space	2009-07-24 09:23:30 -04:00
hash.h	Btrfs: remove crc32c.h and use libcrc32c directly.	2009-06-10 11:29:53 -04:00
inode-item.c	Btrfs: Integrate metadata reservation with start_transaction	2010-05-25 10:34:50 -04:00
inode-map.c	Btrfs: do not reuse objectid of deleted snapshot/subvol	2009-09-21 15:56:00 -04:00
inode.c	Btrfs: uninitialized data is check_path_shared()	2010-06-11 11:46:12 -04:00
ioctl.c	Btrfs: btrfs_lookup_dir_item() can return ERR_PTR	2010-06-11 15:57:37 -04:00
ioctl.h	Btrfs: use __u64 types in ioctl.h	2010-03-16 14:24:27 -04:00
Kconfig	Revert "task_struct: make journal_info conditional"	2009-12-17 13:23:24 -08:00
locking.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
locking.h	Btrfs: fix spinlock assertions on UP systems	2009-03-09 11:45:38 -04:00
Makefile	Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE)	2009-06-10 11:29:46 -04:00
ordered-data.c	Btrfs: add basic DIO read/write support	2010-05-25 10:34:57 -04:00
ordered-data.h	Btrfs: add basic DIO read/write support	2010-05-25 10:34:57 -04:00
orphan.c	Btrfs: change how subvolumes are organized	2009-09-21 15:56:00 -04:00
print-tree.c	Btrfs: remove of redundant btrfs_header_level	2009-07-22 16:52:13 -04:00
print-tree.h	Btrfs: Create extent_buffer interface for large blocksizes	2008-09-25 11:03:56 -04:00
ref-cache.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
ref-cache.h	Btrfs: use RB_ROOT to intialize rb_trees instead of setting rb_node to NULL	2010-03-08 16:26:50 -05:00
relocation.c	Btrfs: Fix null dereference in relocation.c	2010-06-11 15:48:34 -04:00
root-tree.c	Btrfs: avoid BUG when dropping root and reference in same transaction	2010-06-11 15:57:39 -04:00
struct-funcs.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
super.c	Btrfs: btrfs_iget() returns ERR_PTR	2010-06-11 15:57:35 -04:00
sysfs.c	Driver core: Constify struct sysfs_ops in struct kobj_type	2010-03-07 17:04:49 -08:00
transaction.c	Btrfs: don't walk around with task->state != TASK_RUNNING	2010-05-25 10:34:58 -04:00
transaction.h	Btrfs: Introduce global metadata reservation	2010-05-25 10:34:52 -04:00
tree-defrag.c	Btrfs: Introduce global metadata reservation	2010-05-25 10:34:52 -04:00
tree-log.c	Btrfs: Metadata ENOSPC handling for tree log	2010-05-25 10:34:53 -04:00
tree-log.h	Btrfs: Metadata ENOSPC handling for tree log	2010-05-25 10:34:53 -04:00
version.h	Update Btrfs files for in-kernel usage	2008-09-25 15:41:59 -04:00
version.sh	Btrfs: Fixes for 2.6.28-rc API changes	2008-11-19 21:17:22 -05:00
volumes.c	Btrfs: Integrate metadata reservation with start_transaction	2010-05-25 10:34:50 -04:00
volumes.h	Btrfs: make balance code choose more wisely when relocating	2009-09-21 19:23:48 -04:00
xattr.c	Btrfs: Integrate metadata reservation with start_transaction	2010-05-25 10:34:50 -04:00
xattr.h	Btrfs: Pass transaction handle to security and ACL initialization functions	2009-12-17 12:33:34 -05:00
zlib.c	Btrfs: correct error-handling zlib error handling	2009-08-07 13:51:33 -04:00