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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  btrfs: fix inconsonant inode information
  Btrfs: make sure to update total_bitmaps when freeing cache V3
  Btrfs: fix type mismatch in find_free_extent()
  Btrfs: make sure to record the transid in new inodes
This commit is contained in:
Linus Torvalds 2011-06-27 13:32:14 -07:00
commit af4087e0e6
5 changed files with 112 additions and 43 deletions
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128
fs/btrfs/delayed-inode.c
View File

@ -82,6 +82,39 @@ static inline struct btrfs_delayed_root *btrfs_get_delayed_root(
return root->fs_info->delayed_root;
}
static struct btrfs_delayed_node *btrfs_get_delayed_node(struct inode *inode)
{
struct btrfs_inode *btrfs_inode = BTRFS_I(inode);
struct btrfs_root *root = btrfs_inode->root;
u64 ino = btrfs_ino(inode);
struct btrfs_delayed_node *node;
node = ACCESS_ONCE(btrfs_inode->delayed_node);
if (node) {
atomic_inc(&node->refs);
return node;
}
spin_lock(&root->inode_lock);
node = radix_tree_lookup(&root->delayed_nodes_tree, ino);
if (node) {
if (btrfs_inode->delayed_node) {
atomic_inc(&node->refs); /* can be accessed */
BUG_ON(btrfs_inode->delayed_node != node);
spin_unlock(&root->inode_lock);
return node;
}
btrfs_inode->delayed_node = node;
atomic_inc(&node->refs); /* can be accessed */
atomic_inc(&node->refs); /* cached in the inode */
spin_unlock(&root->inode_lock);
return node;
}
spin_unlock(&root->inode_lock);
return NULL;
}
static struct btrfs_delayed_node *btrfs_get_or_create_delayed_node(
struct inode *inode)
{
@ -92,26 +125,9 @@ static struct btrfs_delayed_node *btrfs_get_or_create_delayed_node(
int ret;
again:
node = ACCESS_ONCE(btrfs_inode->delayed_node);
if (node) {
atomic_inc(&node->refs); /* can be accessed */
node = btrfs_get_delayed_node(inode);
if (node)
return node;
}
spin_lock(&root->inode_lock);
node = radix_tree_lookup(&root->delayed_nodes_tree, ino);
if (node) {
if (btrfs_inode->delayed_node) {
spin_unlock(&root->inode_lock);
goto again;
}
btrfs_inode->delayed_node = node;
atomic_inc(&node->refs); /* can be accessed */
atomic_inc(&node->refs); /* cached in the inode */
spin_unlock(&root->inode_lock);
return node;
}
spin_unlock(&root->inode_lock);
node = kmem_cache_alloc(delayed_node_cache, GFP_NOFS);
if (!node)
@ -548,19 +564,6 @@ struct btrfs_delayed_item *__btrfs_next_delayed_item(
return next;
}
static inline struct btrfs_delayed_node *btrfs_get_delayed_node(
struct inode *inode)
{
struct btrfs_inode *btrfs_inode = BTRFS_I(inode);
struct btrfs_delayed_node *delayed_node;
delayed_node = btrfs_inode->delayed_node;
if (delayed_node)
atomic_inc(&delayed_node->refs);
return delayed_node;
}
static inline struct btrfs_root *btrfs_get_fs_root(struct btrfs_root *root,
u64 root_id)
{
@ -1404,8 +1407,7 @@ end:
int btrfs_inode_delayed_dir_index_count(struct inode *inode)
{
struct btrfs_delayed_node *delayed_node = BTRFS_I(inode)->delayed_node;
int ret = 0;
struct btrfs_delayed_node *delayed_node = btrfs_get_delayed_node(inode);
if (!delayed_node)
return -ENOENT;
@ -1415,11 +1417,14 @@ int btrfs_inode_delayed_dir_index_count(struct inode *inode)
* a new directory index is added into the delayed node and index_cnt
* is updated now. So we needn't lock the delayed node.
*/
if (!delayed_node->index_cnt)
if (!delayed_node->index_cnt) {
btrfs_release_delayed_node(delayed_node);
return -EINVAL;
}
BTRFS_I(inode)->index_cnt = delayed_node->index_cnt;
return ret;
btrfs_release_delayed_node(delayed_node);
return 0;
}
void btrfs_get_delayed_items(struct inode *inode, struct list_head *ins_list,
@ -1613,6 +1618,57 @@ static void fill_stack_inode_item(struct btrfs_trans_handle *trans,
inode->i_ctime.tv_nsec);
}
int btrfs_fill_inode(struct inode *inode, u32 *rdev)
{
struct btrfs_delayed_node *delayed_node;
struct btrfs_inode_item *inode_item;
struct btrfs_timespec *tspec;
delayed_node = btrfs_get_delayed_node(inode);
if (!delayed_node)
return -ENOENT;
mutex_lock(&delayed_node->mutex);
if (!delayed_node->inode_dirty) {
mutex_unlock(&delayed_node->mutex);
btrfs_release_delayed_node(delayed_node);
return -ENOENT;
}
inode_item = &delayed_node->inode_item;
inode->i_uid = btrfs_stack_inode_uid(inode_item);
inode->i_gid = btrfs_stack_inode_gid(inode_item);
btrfs_i_size_write(inode, btrfs_stack_inode_size(inode_item));
inode->i_mode = btrfs_stack_inode_mode(inode_item);
inode->i_nlink = btrfs_stack_inode_nlink(inode_item);
inode_set_bytes(inode, btrfs_stack_inode_nbytes(inode_item));
BTRFS_I(inode)->generation = btrfs_stack_inode_generation(inode_item);
BTRFS_I(inode)->sequence = btrfs_stack_inode_sequence(inode_item);
inode->i_rdev = 0;
*rdev = btrfs_stack_inode_rdev(inode_item);
BTRFS_I(inode)->flags = btrfs_stack_inode_flags(inode_item);
tspec = btrfs_inode_atime(inode_item);
inode->i_atime.tv_sec = btrfs_stack_timespec_sec(tspec);
inode->i_atime.tv_nsec = btrfs_stack_timespec_nsec(tspec);
tspec = btrfs_inode_mtime(inode_item);
inode->i_mtime.tv_sec = btrfs_stack_timespec_sec(tspec);
inode->i_mtime.tv_nsec = btrfs_stack_timespec_nsec(tspec);
tspec = btrfs_inode_ctime(inode_item);
inode->i_ctime.tv_sec = btrfs_stack_timespec_sec(tspec);
inode->i_ctime.tv_nsec = btrfs_stack_timespec_nsec(tspec);
inode->i_generation = BTRFS_I(inode)->generation;
BTRFS_I(inode)->index_cnt = (u64)-1;
mutex_unlock(&delayed_node->mutex);
btrfs_release_delayed_node(delayed_node);
return 0;
}
int btrfs_delayed_update_inode(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct inode *inode)
{

1
fs/btrfs/delayed-inode.h
View File

@ -119,6 +119,7 @@ void btrfs_kill_delayed_inode_items(struct inode *inode);
int btrfs_delayed_update_inode(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct inode *inode);
int btrfs_fill_inode(struct inode *inode, u32 *rdev);
/* Used for drop dead root */
void btrfs_kill_all_delayed_nodes(struct btrfs_root *root);

4
fs/btrfs/extent-tree.c
View File

@ -4842,7 +4842,7 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
u64 num_bytes, u64 empty_size,
u64 search_start, u64 search_end,
u64 hint_byte, struct btrfs_key *ins,
int data)
u64 data)
{
int ret = 0;
struct btrfs_root *root = orig_root->fs_info->extent_root;
@ -4869,7 +4869,7 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
space_info = __find_space_info(root->fs_info, data);
if (!space_info) {
printk(KERN_ERR "No space info for %d\n", data);
printk(KERN_ERR "No space info for %llu\n", data);
return -ENOSPC;
}

9
fs/btrfs/free-space-cache.c
View File

@ -1893,9 +1893,12 @@ void __btrfs_remove_free_space_cache_locked(struct btrfs_free_space_ctl *ctl)
while ((node = rb_last(&ctl->free_space_offset)) != NULL) {
info = rb_entry(node, struct btrfs_free_space, offset_index);
unlink_free_space(ctl, info);
kfree(info->bitmap);
kmem_cache_free(btrfs_free_space_cachep, info);
if (!info->bitmap) {
unlink_free_space(ctl, info);
kmem_cache_free(btrfs_free_space_cachep, info);
} else {
free_bitmap(ctl, info);
}
if (need_resched()) {
spin_unlock(&ctl->tree_lock);
cond_resched();

13
fs/btrfs/inode.c
View File

@ -2509,6 +2509,11 @@ static void btrfs_read_locked_inode(struct inode *inode)
int maybe_acls;
u32 rdev;
int ret;
bool filled = false;
ret = btrfs_fill_inode(inode, &rdev);
if (!ret)
filled = true;
path = btrfs_alloc_path();
BUG_ON(!path);
@ -2520,6 +2525,10 @@ static void btrfs_read_locked_inode(struct inode *inode)
goto make_bad;
leaf = path->nodes[0];
if (filled)
goto cache_acl;
inode_item = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_inode_item);
if (!leaf->map_token)
@ -2556,7 +2565,7 @@ static void btrfs_read_locked_inode(struct inode *inode)
BTRFS_I(inode)->index_cnt = (u64)-1;
BTRFS_I(inode)->flags = btrfs_inode_flags(leaf, inode_item);
cache_acl:
/*
* try to precache a NULL acl entry for files that don't have
* any xattrs or acls
@ -2572,7 +2581,6 @@ static void btrfs_read_locked_inode(struct inode *inode)
}
btrfs_free_path(path);
inode_item = NULL;
switch (inode->i_mode & S_IFMT) {
case S_IFREG:
@ -4520,6 +4528,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
inode_tree_add(inode);
trace_btrfs_inode_new(inode);
btrfs_set_inode_last_trans(trans, inode);
return inode;
fail: