int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
size_t size, struct bio *bio,
unsigned long bio_flags);
+void btrfs_set_range_writeback(void *private_data, u64 start, u64 end);
int btrfs_page_mkwrite(struct vm_fault *vmf);
int btrfs_readpage(struct file *file, struct page *page);
void btrfs_evict_inode(struct inode *inode);
* just before they are sent down the IO stack.
*/
struct async_submit_bio {
- struct inode *inode;
+ void *private_data;
+ struct btrfs_fs_info *fs_info;
struct bio *bio;
struct list_head list;
extent_submit_bio_hook_t *submit_bio_start;
int ret;
async = container_of(work, struct async_submit_bio, work);
- ret = async->submit_bio_start(async->inode, async->bio,
+ ret = async->submit_bio_start(async->private_data, async->bio,
async->mirror_num, async->bio_flags,
async->bio_offset);
if (ret)
int limit;
async = container_of(work, struct async_submit_bio, work);
- fs_info = BTRFS_I(async->inode)->root->fs_info;
+ fs_info = async->fs_info;
limit = btrfs_async_submit_limit(fs_info);
limit = limit * 2 / 3;
return;
}
- async->submit_bio_done(async->inode, async->bio, async->mirror_num,
+ async->submit_bio_done(async->private_data, async->bio, async->mirror_num,
async->bio_flags, async->bio_offset);
}
kfree(async);
}
-int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
- struct bio *bio, int mirror_num,
- unsigned long bio_flags,
- u64 bio_offset,
+int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
+ int mirror_num, unsigned long bio_flags,
+ u64 bio_offset, void *private_data,
extent_submit_bio_hook_t *submit_bio_start,
extent_submit_bio_hook_t *submit_bio_done)
{
if (!async)
return -ENOMEM;
- async->inode = inode;
+ async->private_data = private_data;
+ async->fs_info = fs_info;
async->bio = bio;
async->mirror_num = mirror_num;
async->submit_bio_start = submit_bio_start;
return ret;
}
-static int __btree_submit_bio_start(struct inode *inode, struct bio *bio,
+static int __btree_submit_bio_start(void *private_data, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
return btree_csum_one_bio(bio);
}
-static int __btree_submit_bio_done(struct inode *inode, struct bio *bio,
+static int __btree_submit_bio_done(void *private_data, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
+ struct inode *inode = private_data;
int ret;
/*
return 1;
}
-static int btree_submit_bio_hook(struct inode *inode, struct bio *bio,
+static int btree_submit_bio_hook(void *private_data, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
+ struct inode *inode = private_data;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int async = check_async_write(bio_flags);
int ret;
* kthread helpers are used to submit writes so that
* checksumming can happen in parallel across all CPUs
*/
- ret = btrfs_wq_submit_bio(fs_info, inode, bio, mirror_num, 0,
- bio_offset,
+ ret = btrfs_wq_submit_bio(fs_info, bio, mirror_num, 0,
+ bio_offset, private_data,
__btree_submit_bio_start,
__btree_submit_bio_done);
}
root->log_transid_committed = -1;
root->last_log_commit = 0;
if (!dummy)
- extent_io_tree_init(&root->dirty_log_pages,
- fs_info->btree_inode->i_mapping);
+ extent_io_tree_init(&root->dirty_log_pages, NULL);
memset(&root->root_key, 0, sizeof(root->root_key));
memset(&root->root_item, 0, sizeof(root->root_item));
inode->i_mapping->a_ops = &btree_aops;
RB_CLEAR_NODE(&BTRFS_I(inode)->rb_node);
- extent_io_tree_init(&BTRFS_I(inode)->io_tree, inode->i_mapping);
+ extent_io_tree_init(&BTRFS_I(inode)->io_tree, inode);
BTRFS_I(inode)->io_tree.track_uptodate = 0;
extent_map_tree_init(&BTRFS_I(inode)->extent_tree);
fs_info->block_group_cache_tree = RB_ROOT;
fs_info->first_logical_byte = (u64)-1;
- extent_io_tree_init(&fs_info->freed_extents[0],
- fs_info->btree_inode->i_mapping);
- extent_io_tree_init(&fs_info->freed_extents[1],
- fs_info->btree_inode->i_mapping);
+ extent_io_tree_init(&fs_info->freed_extents[0], NULL);
+ extent_io_tree_init(&fs_info->freed_extents[1], NULL);
fs_info->pinned_extents = &fs_info->freed_extents[0];
set_bit(BTRFS_FS_BARRIER, &fs_info->flags);
return 0;
}
+static struct btrfs_fs_info *btree_fs_info(void *private_data)
+{
+ struct inode *inode = private_data;
+ return btrfs_sb(inode->i_sb);
+}
+
static const struct extent_io_ops btree_extent_io_ops = {
/* mandatory callbacks */
.submit_bio_hook = btree_submit_bio_hook,
/* note we're sharing with inode.c for the merge bio hook */
.merge_bio_hook = btrfs_merge_bio_hook,
.readpage_io_failed_hook = btree_io_failed_hook,
+ .set_range_writeback = btrfs_set_range_writeback,
+ .tree_fs_info = btree_fs_info,
/* optional callbacks */
};
void btrfs_csum_final(u32 crc, u8 *result);
int btrfs_bio_wq_end_io(struct btrfs_fs_info *info, struct bio *bio,
enum btrfs_wq_endio_type metadata);
-int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
- struct bio *bio, int mirror_num,
- unsigned long bio_flags, u64 bio_offset,
+int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
+ int mirror_num, unsigned long bio_flags,
+ u64 bio_offset, void *private_data,
extent_submit_bio_hook_t *submit_bio_start,
extent_submit_bio_hook_t *submit_bio_done);
unsigned long btrfs_async_submit_limit(struct btrfs_fs_info *info);
static inline void __btrfs_debug_check_extent_io_range(const char *caller,
struct extent_io_tree *tree, u64 start, u64 end)
{
- struct inode *inode;
- u64 isize;
-
- if (!tree->mapping)
- return;
-
- inode = tree->mapping->host;
- isize = i_size_read(inode);
- if (end >= PAGE_SIZE && (end % 2) == 0 && end != isize - 1) {
- btrfs_debug_rl(BTRFS_I(inode)->root->fs_info,
- "%s: ino %llu isize %llu odd range [%llu,%llu]",
- caller, btrfs_ino(BTRFS_I(inode)), isize, start, end);
- }
+ if (tree->ops && tree->ops->check_extent_io_range)
+ tree->ops->check_extent_io_range(tree->private_data, caller,
+ start, end);
}
#else
#define btrfs_leak_debug_add(new, head) do {} while (0)
static inline struct btrfs_fs_info *
tree_fs_info(struct extent_io_tree *tree)
{
- if (!tree->mapping)
- return NULL;
- return btrfs_sb(tree->mapping->host->i_sb);
+ if (tree->ops)
+ return tree->ops->tree_fs_info(tree->private_data);
+ return NULL;
}
int __init extent_io_init(void)
}
void extent_io_tree_init(struct extent_io_tree *tree,
- struct address_space *mapping)
+ void *private_data)
{
tree->state = RB_ROOT;
tree->ops = NULL;
tree->dirty_bytes = 0;
spin_lock_init(&tree->lock);
- tree->mapping = mapping;
+ tree->private_data = private_data;
}
static struct extent_state *alloc_extent_state(gfp_t mask)
struct extent_state *other)
{
if (tree->ops && tree->ops->merge_extent_hook)
- tree->ops->merge_extent_hook(tree->mapping->host, new,
- other);
+ tree->ops->merge_extent_hook(tree->private_data, new, other);
}
/*
struct extent_state *state, unsigned *bits)
{
if (tree->ops && tree->ops->set_bit_hook)
- tree->ops->set_bit_hook(tree->mapping->host, state, bits);
+ tree->ops->set_bit_hook(tree->private_data, state, bits);
}
static void clear_state_cb(struct extent_io_tree *tree,
struct extent_state *state, unsigned *bits)
{
if (tree->ops && tree->ops->clear_bit_hook)
- tree->ops->clear_bit_hook(BTRFS_I(tree->mapping->host),
- state, bits);
+ tree->ops->clear_bit_hook(tree->private_data, state, bits);
}
static void set_state_bits(struct extent_io_tree *tree,
u64 split)
{
if (tree->ops && tree->ops->split_extent_hook)
- tree->ops->split_extent_hook(tree->mapping->host, orig, split);
+ tree->ops->split_extent_hook(tree->private_data, orig, split);
}
/*
*/
static void set_range_writeback(struct extent_io_tree *tree, u64 start, u64 end)
{
- unsigned long index = start >> PAGE_SHIFT;
- unsigned long end_index = end >> PAGE_SHIFT;
- struct page *page;
-
- while (index <= end_index) {
- page = find_get_page(tree->mapping, index);
- BUG_ON(!page); /* Pages should be in the extent_io_tree */
- set_page_writeback(page);
- put_page(page);
- index++;
- }
+ tree->ops->set_range_writeback(tree->private_data, start, end);
}
/* find the first state struct with 'bits' set after 'start', and
"Repair Read Error: submitting new read[%#x] to this_mirror=%d, in_validation=%d",
read_mode, failrec->this_mirror, failrec->in_validation);
- ret = tree->ops->submit_bio_hook(inode, bio, failrec->this_mirror,
+ ret = tree->ops->submit_bio_hook(tree->private_data, bio, failrec->this_mirror,
failrec->bio_flags, 0);
if (ret) {
free_io_failure(BTRFS_I(inode), failrec);
bio_get(bio);
if (tree->ops)
- ret = tree->ops->submit_bio_hook(page->mapping->host, bio,
+ ret = tree->ops->submit_bio_hook(tree->private_data, bio,
mirror_num, bio_flags, start);
else
btrfsic_submit_bio(bio);
struct btrfs_io_bio;
struct io_failure_record;
-typedef int (extent_submit_bio_hook_t)(struct inode *inode, struct bio *bio,
+typedef int (extent_submit_bio_hook_t)(void *private_data, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset);
struct extent_io_ops {
size_t size, struct bio *bio,
unsigned long bio_flags);
int (*readpage_io_failed_hook)(struct page *page, int failed_mirror);
+ struct btrfs_fs_info *(*tree_fs_info)(void *private_data);
+ void (*set_range_writeback)(void *private_data, u64 start, u64 end);
/*
* Optional hooks, called if the pointer is not NULL
*/
- int (*fill_delalloc)(struct inode *inode, struct page *locked_page,
+ int (*fill_delalloc)(void *private_data, struct page *locked_page,
u64 start, u64 end, int *page_started,
unsigned long *nr_written);
int (*writepage_start_hook)(struct page *page, u64 start, u64 end);
void (*writepage_end_io_hook)(struct page *page, u64 start, u64 end,
struct extent_state *state, int uptodate);
- void (*set_bit_hook)(struct inode *inode, struct extent_state *state,
+ void (*set_bit_hook)(void *private_data, struct extent_state *state,
unsigned *bits);
- void (*clear_bit_hook)(struct btrfs_inode *inode,
+ void (*clear_bit_hook)(void *private_data,
struct extent_state *state,
unsigned *bits);
- void (*merge_extent_hook)(struct inode *inode,
+ void (*merge_extent_hook)(void *private_data,
struct extent_state *new,
struct extent_state *other);
- void (*split_extent_hook)(struct inode *inode,
+ void (*split_extent_hook)(void *private_data,
struct extent_state *orig, u64 split);
+ void (*check_extent_io_range)(void *private_data, const char *caller,
+ u64 start, u64 end);
};
struct extent_io_tree {
struct rb_root state;
- struct address_space *mapping;
+ void *private_data;
u64 dirty_bytes;
int track_uptodate;
spinlock_t lock;
u64 start, u64 len,
int create);
-void extent_io_tree_init(struct extent_io_tree *tree,
- struct address_space *mapping);
+void extent_io_tree_init(struct extent_io_tree *tree, void *private_data);
int try_release_extent_mapping(struct extent_map_tree *map,
struct extent_io_tree *tree, struct page *page,
gfp_t mask);
/*
* extent_io.c call back to do delayed allocation processing
*/
-static int run_delalloc_range(struct inode *inode, struct page *locked_page,
+static int run_delalloc_range(void *private_data, struct page *locked_page,
u64 start, u64 end, int *page_started,
unsigned long *nr_written)
{
+ struct inode *inode = private_data;
int ret;
int force_cow = need_force_cow(inode, start, end);
return ret;
}
-static void btrfs_split_extent_hook(struct inode *inode,
+static void btrfs_split_extent_hook(void *private_data,
struct extent_state *orig, u64 split)
{
+ struct inode *inode = private_data;
u64 size;
/* not delalloc, ignore it */
* extents, such as when we are doing sequential writes, so we can properly
* account for the metadata space we'll need.
*/
-static void btrfs_merge_extent_hook(struct inode *inode,
+static void btrfs_merge_extent_hook(void *private_data,
struct extent_state *new,
struct extent_state *other)
{
+ struct inode *inode = private_data;
u64 new_size, old_size;
u32 num_extents;
* bytes in this file, and to maintain the list of inodes that
* have pending delalloc work to be done.
*/
-static void btrfs_set_bit_hook(struct inode *inode,
+static void btrfs_set_bit_hook(void *private_data,
struct extent_state *state, unsigned *bits)
{
+ struct inode *inode = private_data;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
/*
* extent_io.c clear_bit_hook, see set_bit_hook for why
*/
-static void btrfs_clear_bit_hook(struct btrfs_inode *inode,
+static void btrfs_clear_bit_hook(void *private_data,
struct extent_state *state,
unsigned *bits)
{
+ struct btrfs_inode *inode = BTRFS_I((struct inode *)private_data);
struct btrfs_fs_info *fs_info = btrfs_sb(inode->vfs_inode.i_sb);
u64 len = state->end + 1 - state->start;
u32 num_extents = count_max_extents(len);
* At IO completion time the cums attached on the ordered extent record
* are inserted into the btree
*/
-static int __btrfs_submit_bio_start(struct inode *inode, struct bio *bio,
+static int __btrfs_submit_bio_start(void *private_data, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
+ struct inode *inode = private_data;
int ret = 0;
ret = btrfs_csum_one_bio(inode, bio, 0, 0);
* At IO completion time the cums attached on the ordered extent record
* are inserted into the btree
*/
-static int __btrfs_submit_bio_done(struct inode *inode, struct bio *bio,
+static int __btrfs_submit_bio_done(void *private_data, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
+ struct inode *inode = private_data;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int ret;
* extent_io.c submission hook. This does the right thing for csum calculation
* on write, or reading the csums from the tree before a read
*/
-static int btrfs_submit_bio_hook(struct inode *inode, struct bio *bio,
- int mirror_num, unsigned long bio_flags,
- u64 bio_offset)
+static int btrfs_submit_bio_hook(void *private_data, struct bio *bio,
+ int mirror_num, unsigned long bio_flags,
+ u64 bio_offset)
{
+ struct inode *inode = private_data;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
enum btrfs_wq_endio_type metadata = BTRFS_WQ_ENDIO_DATA;
if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID)
goto mapit;
/* we're doing a write, do the async checksumming */
- ret = btrfs_wq_submit_bio(fs_info, inode, bio, mirror_num,
- bio_flags, bio_offset,
+ ret = btrfs_wq_submit_bio(fs_info, bio, mirror_num, bio_flags,
+ bio_offset, inode,
__btrfs_submit_bio_start,
__btrfs_submit_bio_done);
goto out;
bio_put(bio);
}
-static int __btrfs_submit_bio_start_direct_io(struct inode *inode,
+static int __btrfs_submit_bio_start_direct_io(void *private_data,
struct bio *bio, int mirror_num,
unsigned long bio_flags, u64 offset)
{
+ struct inode *inode = private_data;
int ret;
ret = btrfs_csum_one_bio(inode, bio, offset, 1);
BUG_ON(ret); /* -ENOMEM */
goto map;
if (write && async_submit) {
- ret = btrfs_wq_submit_bio(fs_info, inode, bio, 0, 0,
- file_offset,
+ ret = btrfs_wq_submit_bio(fs_info, bio, 0, 0,
+ file_offset, inode,
__btrfs_submit_bio_start_direct_io,
__btrfs_submit_bio_done);
goto err;
inode = &ei->vfs_inode;
extent_map_tree_init(&ei->extent_tree);
- extent_io_tree_init(&ei->io_tree, &inode->i_data);
- extent_io_tree_init(&ei->io_failure_tree, &inode->i_data);
+ extent_io_tree_init(&ei->io_tree, inode);
+ extent_io_tree_init(&ei->io_failure_tree, inode);
ei->io_tree.track_uptodate = 1;
ei->io_failure_tree.track_uptodate = 1;
atomic_set(&ei->sync_writers, 0);
return -EAGAIN;
}
+static struct btrfs_fs_info *iotree_fs_info(void *private_data)
+{
+ struct inode *inode = private_data;
+ return btrfs_sb(inode->i_sb);
+}
+
+static void btrfs_check_extent_io_range(void *private_data, const char *caller,
+ u64 start, u64 end)
+{
+ struct inode *inode = private_data;
+ u64 isize;
+
+ isize = i_size_read(inode);
+ if (end >= PAGE_SIZE && (end % 2) == 0 && end != isize - 1) {
+ btrfs_debug_rl(BTRFS_I(inode)->root->fs_info,
+ "%s: ino %llu isize %llu odd range [%llu,%llu]",
+ caller, btrfs_ino(BTRFS_I(inode)), isize, start, end);
+ }
+}
+
+void btrfs_set_range_writeback(void *private_data, u64 start, u64 end)
+{
+ struct inode *inode = private_data;
+ unsigned long index = start >> PAGE_SHIFT;
+ unsigned long end_index = end >> PAGE_SHIFT;
+ struct page *page;
+
+ while (index <= end_index) {
+ page = find_get_page(inode->i_mapping, index);
+ ASSERT(page); /* Pages should be in the extent_io_tree */
+ set_page_writeback(page);
+ put_page(page);
+ index++;
+ }
+}
+
static const struct inode_operations btrfs_dir_inode_operations = {
.getattr = btrfs_getattr,
.lookup = btrfs_lookup,
.readpage_end_io_hook = btrfs_readpage_end_io_hook,
.merge_bio_hook = btrfs_merge_bio_hook,
.readpage_io_failed_hook = btrfs_readpage_io_failed_hook,
+ .tree_fs_info = iotree_fs_info,
+ .set_range_writeback = btrfs_set_range_writeback,
/* optional callbacks */
.fill_delalloc = run_delalloc_range,
.clear_bit_hook = btrfs_clear_bit_hook,
.merge_extent_hook = btrfs_merge_extent_hook,
.split_extent_hook = btrfs_split_extent_hook,
+ .check_extent_io_range = btrfs_check_extent_io_range,
};
/*
INIT_LIST_HEAD(&rc->reloc_roots);
backref_cache_init(&rc->backref_cache);
mapping_tree_init(&rc->reloc_root_tree);
- extent_io_tree_init(&rc->processed_blocks,
- fs_info->btree_inode->i_mapping);
+ extent_io_tree_init(&rc->processed_blocks, NULL);
return rc;
}
return -ENOMEM;
}
- extent_io_tree_init(&tmp, &inode->i_data);
+ extent_io_tree_init(&tmp, inode);
/*
* First go through and create and mark all of our pages dirty, we pin
spin_lock_init(&cur_trans->dropped_roots_lock);
list_add_tail(&cur_trans->list, &fs_info->trans_list);
extent_io_tree_init(&cur_trans->dirty_pages,
- fs_info->btree_inode->i_mapping);
+ fs_info->btree_inode);
fs_info->generation++;
cur_trans->transid = fs_info->generation;
fs_info->running_transaction = cur_trans;
projects / users / hch / configfs.git / commitdiff