static struct extent_map *create_pinned_em(struct inode *inode, u64 start,
u64 len, u64 orig_start,
u64 block_start, u64 block_len,
- u64 orig_block_len, int type);
+ u64 orig_block_len, u64 ram_bytes,
+ int type);
+
+static int btrfs_dirty_inode(struct inode *inode);
static int btrfs_init_inode_security(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir,
em->block_start = ins.objectid;
em->block_len = ins.offset;
em->orig_block_len = ins.offset;
+ em->ram_bytes = async_extent->ram_size;
em->bdev = root->fs_info->fs_devices->latest_bdev;
em->compress_type = async_extent->compress_type;
set_bit(EXTENT_FLAG_PINNED, &em->flags);
while (1) {
write_lock(&em_tree->lock);
- ret = add_extent_mapping(em_tree, em);
- if (!ret)
- list_move(&em->list,
- &em_tree->modified_extents);
+ ret = add_extent_mapping(em_tree, em, 1);
write_unlock(&em_tree->lock);
if (ret != -EEXIST) {
free_extent_map(em);
}
em = alloc_extent_map();
- BUG_ON(!em); /* -ENOMEM */
+ if (!em)
+ goto out_reserve;
em->start = start;
em->orig_start = em->start;
ram_size = ins.offset;
em->block_start = ins.objectid;
em->block_len = ins.offset;
em->orig_block_len = ins.offset;
+ em->ram_bytes = ram_size;
em->bdev = root->fs_info->fs_devices->latest_bdev;
set_bit(EXTENT_FLAG_PINNED, &em->flags);
em->generation = -1;
while (1) {
write_lock(&em_tree->lock);
- ret = add_extent_mapping(em_tree, em);
- if (!ret)
- list_move(&em->list,
- &em_tree->modified_extents);
+ ret = add_extent_mapping(em_tree, em, 1);
write_unlock(&em_tree->lock);
if (ret != -EEXIST) {
free_extent_map(em);
btrfs_drop_extent_cache(inode, start,
start + ram_size - 1, 0);
}
+ if (ret)
+ goto out_reserve;
cur_alloc_size = ins.offset;
ret = btrfs_add_ordered_extent(inode, start, ins.objectid,
ram_size, cur_alloc_size, 0);
- BUG_ON(ret); /* -ENOMEM */
+ if (ret)
+ goto out_reserve;
if (root->root_key.objectid ==
BTRFS_DATA_RELOC_TREE_OBJECTID) {
cur_alloc_size);
if (ret) {
btrfs_abort_transaction(trans, root, ret);
- goto out_unlock;
+ goto out_reserve;
}
}
out:
return ret;
+out_reserve:
+ btrfs_free_reserved_extent(root, ins.objectid, ins.offset);
out_unlock:
extent_clear_unlock_delalloc(inode,
&BTRFS_I(inode)->io_tree,
u64 disk_bytenr;
u64 num_bytes;
u64 disk_num_bytes;
+ u64 ram_bytes;
int extent_type;
int ret, err;
int type;
struct btrfs_file_extent_item);
extent_type = btrfs_file_extent_type(leaf, fi);
+ ram_bytes = btrfs_file_extent_ram_bytes(leaf, fi);
if (extent_type == BTRFS_FILE_EXTENT_REG ||
extent_type == BTRFS_FILE_EXTENT_PREALLOC) {
disk_bytenr = btrfs_file_extent_disk_bytenr(leaf, fi);
em->block_len = num_bytes;
em->block_start = disk_bytenr;
em->orig_block_len = disk_num_bytes;
+ em->ram_bytes = ram_bytes;
em->bdev = root->fs_info->fs_devices->latest_bdev;
em->mod_start = em->start;
em->mod_len = em->len;
em->generation = -1;
while (1) {
write_lock(&em_tree->lock);
- ret = add_extent_mapping(em_tree, em);
- if (!ret)
- list_move(&em->list,
- &em_tree->modified_extents);
+ ret = add_extent_mapping(em_tree, em, 1);
write_unlock(&em_tree->lock);
if (ret != -EEXIST) {
free_extent_map(em);
* have pending delalloc work to be done.
*/
static void btrfs_set_bit_hook(struct inode *inode,
- struct extent_state *state, int *bits)
+ struct extent_state *state, unsigned long *bits)
{
/*
* extent_io.c clear_bit_hook, see set_bit_hook for why
*/
static void btrfs_clear_bit_hook(struct inode *inode,
- struct extent_state *state, int *bits)
+ struct extent_state *state,
+ unsigned long *bits)
{
/*
* set_bit and clear bit hooks normally require _irqsave/restore
int ret;
struct btrfs_root *root = BTRFS_I(inode)->root;
u32 csum = ~(u32)0;
+ static DEFINE_RATELIMIT_STATE(_rs, DEFAULT_RATELIMIT_INTERVAL,
+ DEFAULT_RATELIMIT_BURST);
if (PageChecked(page)) {
ClearPageChecked(page);
if (ret)
goto zeroit;
- csum = btrfs_csum_data(root, kaddr + offset, csum, end - start + 1);
+ csum = btrfs_csum_data(kaddr + offset, csum, end - start + 1);
btrfs_csum_final(csum, (char *)&csum);
if (csum != private)
goto zeroit;
return 0;
zeroit:
- printk_ratelimited(KERN_INFO "btrfs csum failed ino %llu off %llu csum %u "
- "private %llu\n",
- (unsigned long long)btrfs_ino(page->mapping->host),
- (unsigned long long)start, csum,
- (unsigned long long)private);
+ if (__ratelimit(&_rs))
+ btrfs_info(root->fs_info, "csum failed ino %llu off %llu csum %u private %llu",
+ (unsigned long long)btrfs_ino(page->mapping->host),
+ (unsigned long long)start, csum,
+ (unsigned long long)private);
memset(kaddr + offset, 1, end - start + 1);
flush_dcache_page(page);
kunmap_atomic(kaddr);
* We have done the truncate/delete so we can go ahead and remove the orphan
* item for this particular inode.
*/
-int btrfs_orphan_del(struct btrfs_trans_handle *trans, struct inode *inode)
+static int btrfs_orphan_del(struct btrfs_trans_handle *trans,
+ struct inode *inode)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
int delete_item = 0;
*/
if (found_key.offset == last_objectid) {
- printk(KERN_ERR "btrfs: Error removing orphan entry, "
- "stopping orphan cleanup\n");
+ btrfs_err(root->fs_info,
+ "Error removing orphan entry, stopping orphan cleanup");
ret = -EINVAL;
goto out;
}
ret = PTR_ERR(trans);
goto out;
}
- printk(KERN_ERR "auto deleting %Lu\n",
- found_key.objectid);
+ btrfs_debug(root->fs_info, "auto deleting %Lu",
+ found_key.objectid);
ret = btrfs_del_orphan_item(trans, root,
found_key.objectid);
BUG_ON(ret); /* -ENOMEM or corruption (JDM: Recheck) */
}
if (nr_unlink)
- printk(KERN_INFO "btrfs: unlinked %d orphans\n", nr_unlink);
+ btrfs_debug(root->fs_info, "unlinked %d orphans", nr_unlink);
if (nr_truncate)
- printk(KERN_INFO "btrfs: truncated %d orphans\n", nr_truncate);
+ btrfs_debug(root->fs_info, "truncated %d orphans", nr_truncate);
out:
if (ret)
- printk(KERN_CRIT "btrfs: could not do orphan cleanup %d\n", ret);
+ btrfs_crit(root->fs_info,
+ "could not do orphan cleanup %d", ret);
btrfs_free_path(path);
return ret;
}
ret = btrfs_del_inode_ref(trans, root, name, name_len, ino,
dir_ino, &index);
if (ret) {
- printk(KERN_INFO "btrfs failed to delete reference to %.*s, "
- "inode %llu parent %llu\n", name_len, name,
- (unsigned long long)ino, (unsigned long long)dir_ino);
+ btrfs_info(root->fs_info,
+ "failed to delete reference to %.*s, inode %llu parent %llu",
+ name_len, name,
+ (unsigned long long)ino, (unsigned long long)dir_ino);
btrfs_abort_transaction(trans, root, ret);
goto err;
}
dir, index);
if (ret == -ENOENT)
ret = 0;
+ else if (ret)
+ btrfs_abort_transaction(trans, root, ret);
err:
btrfs_free_path(path);
if (ret)
eb = path->nodes[level];
if (!btrfs_block_can_be_shared(root, eb))
continue;
- ret = btrfs_lookup_extent_info(NULL, root, eb->start, eb->len,
+ ret = btrfs_lookup_extent_info(NULL, root, eb->start, level, 1,
&refs, NULL);
if (refs > 1)
return 1;
}
size =
btrfs_file_extent_calc_inline_size(size);
- btrfs_truncate_item(trans, root, path,
- size, 1);
+ btrfs_truncate_item(root, path, size, 1);
} else if (root->ref_cows) {
inode_sub_bytes(inode, item_end + 1 -
found_key.offset);
hole_em->block_start = EXTENT_MAP_HOLE;
hole_em->block_len = 0;
hole_em->orig_block_len = 0;
+ hole_em->ram_bytes = hole_size;
hole_em->bdev = root->fs_info->fs_devices->latest_bdev;
hole_em->compress_type = BTRFS_COMPRESS_NONE;
hole_em->generation = trans->transid;
while (1) {
write_lock(&em_tree->lock);
- err = add_extent_mapping(em_tree, hole_em);
- if (!err)
- list_move(&hole_em->list,
- &em_tree->modified_extents);
+ err = add_extent_mapping(em_tree, hole_em, 1);
write_unlock(&em_tree->lock);
if (err != -EEXIST)
break;
ret = btrfs_block_rsv_migrate(global_rsv, rsv, min_size);
if (ret) {
- printk(KERN_WARNING "Could not get space for a "
- "delete, will truncate on mount %d\n", ret);
+ btrfs_warn(root->fs_info,
+ "Could not get space for a delete, will truncate on mount %d",
+ ret);
btrfs_orphan_del(NULL, inode);
btrfs_free_block_rsv(root, rsv);
goto no_delete;
* FIXME, needs more benchmarking...there are no reasons other than performance
* to keep or drop this code.
*/
-int btrfs_dirty_inode(struct inode *inode)
+static int btrfs_dirty_inode(struct inode *inode)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
em->block_start += start_diff;
em->block_len -= start_diff;
}
- return add_extent_mapping(em_tree, em);
+ return add_extent_mapping(em_tree, em, 0);
}
static noinline int uncompress_inline(struct btrfs_path *path,
goto not_found_em;
}
+ em->ram_bytes = btrfs_file_extent_ram_bytes(leaf, item);
if (found_type == BTRFS_FILE_EXTENT_REG ||
found_type == BTRFS_FILE_EXTENT_PREALLOC) {
em->start = extent_start;
insert:
btrfs_release_path(path);
if (em->start > start || extent_map_end(em) <= start) {
- printk(KERN_ERR "Btrfs: bad extent! em: [%llu %llu] passed "
- "[%llu %llu]\n", (unsigned long long)em->start,
- (unsigned long long)em->len,
- (unsigned long long)start,
- (unsigned long long)len);
+ btrfs_err(root->fs_info, "bad extent! em: [%llu %llu] passed [%llu %llu]",
+ (unsigned long long)em->start,
+ (unsigned long long)em->len,
+ (unsigned long long)start,
+ (unsigned long long)len);
err = -EIO;
goto out;
}
err = 0;
write_lock(&em_tree->lock);
- ret = add_extent_mapping(em_tree, em);
+ ret = add_extent_mapping(em_tree, em, 0);
/* it is possible that someone inserted the extent into the tree
* while we had the lock dropped. It is also possible that
* an overlapping map exists in the tree
}
em = create_pinned_em(inode, start, ins.offset, start, ins.objectid,
- ins.offset, ins.offset, 0);
+ ins.offset, ins.offset, ins.offset, 0);
if (IS_ERR(em))
goto out;
* block must be cow'd
*/
static noinline int can_nocow_odirect(struct btrfs_trans_handle *trans,
- struct inode *inode, u64 offset, u64 len)
+ struct inode *inode, u64 offset, u64 *len,
+ u64 *orig_start, u64 *orig_block_len,
+ u64 *ram_bytes)
{
struct btrfs_path *path;
int ret;
disk_bytenr = btrfs_file_extent_disk_bytenr(leaf, fi);
backref_offset = btrfs_file_extent_offset(leaf, fi);
+ *orig_start = key.offset - backref_offset;
+ *orig_block_len = btrfs_file_extent_disk_num_bytes(leaf, fi);
+ *ram_bytes = btrfs_file_extent_ram_bytes(leaf, fi);
+
extent_end = key.offset + btrfs_file_extent_num_bytes(leaf, fi);
- if (extent_end < offset + len) {
+ if (extent_end < offset + *len) {
/* extent doesn't include our full range, must cow */
goto out;
}
*/
disk_bytenr += backref_offset;
disk_bytenr += offset - key.offset;
- num_bytes = min(offset + len, extent_end) - offset;
+ num_bytes = min(offset + *len, extent_end) - offset;
if (csum_exist_in_range(root, disk_bytenr, num_bytes))
goto out;
/*
* all of the above have passed, it is safe to overwrite this extent
* without cow
*/
+ *len = num_bytes;
ret = 1;
out:
btrfs_free_path(path);
static struct extent_map *create_pinned_em(struct inode *inode, u64 start,
u64 len, u64 orig_start,
u64 block_start, u64 block_len,
- u64 orig_block_len, int type)
+ u64 orig_block_len, u64 ram_bytes,
+ int type)
{
struct extent_map_tree *em_tree;
struct extent_map *em;
em->block_start = block_start;
em->bdev = root->fs_info->fs_devices->latest_bdev;
em->orig_block_len = orig_block_len;
+ em->ram_bytes = ram_bytes;
em->generation = -1;
set_bit(EXTENT_FLAG_PINNED, &em->flags);
if (type == BTRFS_ORDERED_PREALLOC)
btrfs_drop_extent_cache(inode, em->start,
em->start + em->len - 1, 0);
write_lock(&em_tree->lock);
- ret = add_extent_mapping(em_tree, em);
- if (!ret)
- list_move(&em->list,
- &em_tree->modified_extents);
+ ret = add_extent_mapping(em_tree, em, 1);
write_unlock(&em_tree->lock);
} while (ret == -EEXIST);
em->block_start != EXTENT_MAP_HOLE)) {
int type;
int ret;
- u64 block_start;
+ u64 block_start, orig_start, orig_block_len, ram_bytes;
if (test_bit(EXTENT_FLAG_PREALLOC, &em->flags))
type = BTRFS_ORDERED_PREALLOC;
if (IS_ERR(trans))
goto must_cow;
- if (can_nocow_odirect(trans, inode, start, len) == 1) {
- u64 orig_start = em->orig_start;
- u64 orig_block_len = em->orig_block_len;
-
+ if (can_nocow_odirect(trans, inode, start, &len, &orig_start,
+ &orig_block_len, &ram_bytes) == 1) {
if (type == BTRFS_ORDERED_PREALLOC) {
free_extent_map(em);
em = create_pinned_em(inode, start, len,
orig_start,
block_start, len,
- orig_block_len, type);
+ orig_block_len,
+ ram_bytes, type);
if (IS_ERR(em)) {
btrfs_end_transaction(trans, root);
goto unlock_err;
goto failed;
local_irq_save(flags);
kaddr = kmap_atomic(page);
- csum = btrfs_csum_data(root, kaddr + bvec->bv_offset,
+ csum = btrfs_csum_data(kaddr + bvec->bv_offset,
csum, bvec->bv_len);
btrfs_csum_final(csum, (char *)&csum);
kunmap_atomic(kaddr);
flush_dcache_page(bvec->bv_page);
if (csum != private) {
failed:
- printk(KERN_ERR "btrfs csum failed ino %llu off"
- " %llu csum %u private %u\n",
- (unsigned long long)btrfs_ino(inode),
- (unsigned long long)start,
- csum, (unsigned)private);
+ btrfs_err(root->fs_info, "csum failed ino %llu off %llu csum %u private %u",
+ (unsigned long long)btrfs_ino(inode),
+ (unsigned long long)start,
+ csum, (unsigned)private);
err = -EIO;
}
}
return extent_write_full_page(tree, page, btrfs_get_extent, wbc);
}
-int btrfs_writepages(struct address_space *mapping,
- struct writeback_control *wbc)
+static int btrfs_writepages(struct address_space *mapping,
+ struct writeback_control *wbc)
{
struct extent_io_tree *tree;
if (test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
&BTRFS_I(inode)->runtime_flags)) {
- printk(KERN_INFO "BTRFS: inode %llu still on the orphan list\n",
- (unsigned long long)btrfs_ino(inode));
+ btrfs_info(root->fs_info, "inode %llu still on the orphan list",
+ (unsigned long long)btrfs_ino(inode));
atomic_dec(&root->orphan_inodes);
}
if (!ordered)
break;
else {
- printk(KERN_ERR "btrfs found ordered "
- "extent %llu %llu on inode cleanup\n",
- (unsigned long long)ordered->file_offset,
- (unsigned long long)ordered->len);
+ btrfs_err(root->fs_info, "found ordered extent %llu %llu on inode cleanup",
+ (unsigned long long)ordered->file_offset,
+ (unsigned long long)ordered->len);
btrfs_remove_ordered_extent(inode, ordered);
btrfs_put_ordered_extent(ordered);
btrfs_put_ordered_extent(ordered);
em->block_start = ins.objectid;
em->block_len = ins.offset;
em->orig_block_len = ins.offset;
+ em->ram_bytes = ins.offset;
em->bdev = root->fs_info->fs_devices->latest_bdev;
set_bit(EXTENT_FLAG_PREALLOC, &em->flags);
em->generation = trans->transid;
while (1) {
write_lock(&em_tree->lock);
- ret = add_extent_mapping(em_tree, em);
- if (!ret)
- list_move(&em->list,
- &em_tree->modified_extents);
+ ret = add_extent_mapping(em_tree, em, 1);
write_unlock(&em_tree->lock);
if (ret != -EEXIST)
break;
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff