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for-5.2-rc5-tag

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Merge tag 'for-5.2-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - regression where properties stored as xattrs are not properly
   persisted

 - a small readahead fix (the fstests testcase for that fix hangs on
   unpatched kernel, so we'd like get it merged to ease future testing)

 - fix a race during block group creation and deletion

* tag 'for-5.2-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Btrfs: fix failure to persist compression property xattr deletion on fsync
  btrfs: start readahead also in seed devices
  Btrfs: fix race between block group removal and block group allocation
This commit is contained in:
Linus Torvalds 2019-06-18 11:20:24 -07:00
commit bed3c0d84e
4 changed files with 21 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
fs/btrfs/extent-tree.c
View File

@ -10831,17 +10831,6 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
remove_em = (atomic_read(&block_group->trimming) == 0);
spin_unlock(&block_group->lock);
if (remove_em) {
struct extent_map_tree *em_tree;
em_tree = &fs_info->mapping_tree.map_tree;
write_lock(&em_tree->lock);
remove_extent_mapping(em_tree, em);
write_unlock(&em_tree->lock);
/* once for the tree */
free_extent_map(em);
}
mutex_unlock(&fs_info->chunk_mutex);
ret = remove_block_group_free_space(trans, block_group);
@ -10858,6 +10847,19 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
goto out;
ret = btrfs_del_item(trans, root, path);
if (ret)
goto out;
if (remove_em) {
struct extent_map_tree *em_tree;
em_tree = &fs_info->mapping_tree.map_tree;
write_lock(&em_tree->lock);
remove_extent_mapping(em_tree, em);
write_unlock(&em_tree->lock);
/* once for the tree */
free_extent_map(em);
}
out:
if (remove_rsv)
btrfs_delayed_refs_rsv_release(fs_info, 1);

2
fs/btrfs/ioctl.c
View File

@ -312,8 +312,6 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
btrfs_abort_transaction(trans, ret);
goto out_end_trans;
}
set_bit(BTRFS_INODE_COPY_EVERYTHING,
&BTRFS_I(inode)->runtime_flags);
} else {
ret = btrfs_set_prop(trans, inode, "btrfs.compression", NULL,
0, 0);

5
fs/btrfs/reada.c
View File

@ -747,6 +747,7 @@ static void __reada_start_machine(struct btrfs_fs_info *fs_info)
u64 total = 0;
int i;
again:
do {
enqueued = 0;
mutex_lock(&fs_devices->device_list_mutex);
@ -758,6 +759,10 @@ static void __reada_start_machine(struct btrfs_fs_info *fs_info)
mutex_unlock(&fs_devices->device_list_mutex);
total += enqueued;
} while (enqueued && total < 10000);
if (fs_devices->seed) {
fs_devices = fs_devices->seed;
goto again;
}
if (enqueued == 0)
return;

6
fs/btrfs/xattr.c
View File

@ -213,6 +213,9 @@ int btrfs_setxattr(struct btrfs_trans_handle *trans, struct inode *inode,
}
out:
btrfs_free_path(path);
if (!ret)
set_bit(BTRFS_INODE_COPY_EVERYTHING,
&BTRFS_I(inode)->runtime_flags);
return ret;
}
@ -236,7 +239,6 @@ int btrfs_setxattr_trans(struct inode *inode, const char *name,
inode_inc_iversion(inode);
inode->i_ctime = current_time(inode);
set_bit(BTRFS_INODE_COPY_EVERYTHING, &BTRFS_I(inode)->runtime_flags);
ret = btrfs_update_inode(trans, root, inode);
BUG_ON(ret);
out:
@ -388,8 +390,6 @@ static int btrfs_xattr_handler_set_prop(const struct xattr_handler *handler,
if (!ret) {
inode_inc_iversion(inode);
inode->i_ctime = current_time(inode);
set_bit(BTRFS_INODE_COPY_EVERYTHING,
&BTRFS_I(inode)->runtime_flags);
ret = btrfs_update_inode(trans, root, inode);
BUG_ON(ret);
}