Merge branch 'for-4.13-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"The core updates improve error handling (mostly related to bios), with
the usual incremental work on the GFP_NOFS (mis)use removal,
refactoring or cleanups. Except the two top patches, all have been in
for-next for an extensive amount of time.
User visible changes:
- statx support
- quota override tunable
- improved compression thresholds
- obsoleted mount option alloc_start
Core updates:
- bio-related updates:
- faster bio cloning
- no allocation failures
- preallocated flush bios
- more kvzalloc use, memalloc_nofs protections, GFP_NOFS updates
- prep work for btree_inode removal
- dir-item validation
- qgoup fixes and updates
- cleanups:
- removed unused struct members, unused code, refactoring
- argument refactoring (fs_info/root, caller -> callee sink)
- SEARCH_TREE ioctl docs"
* 'for-4.13-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (115 commits)
btrfs: Remove false alert when fiemap range is smaller than on-disk extent
btrfs: Don't clear SGID when inheriting ACLs
btrfs: fix integer overflow in calc_reclaim_items_nr
btrfs: scrub: fix target device intialization while setting up scrub context
btrfs: qgroup: Fix qgroup reserved space underflow by only freeing reserved ranges
btrfs: qgroup: Introduce extent changeset for qgroup reserve functions
btrfs: qgroup: Fix qgroup reserved space underflow caused by buffered write and quotas being enabled
btrfs: qgroup: Return actually freed bytes for qgroup release or free data
btrfs: qgroup: Cleanup btrfs_qgroup_prepare_account_extents function
btrfs: qgroup: Add quick exit for non-fs extents
Btrfs: rework delayed ref total_bytes_pinned accounting
Btrfs: return old and new total ref mods when adding delayed refs
Btrfs: always account pinned bytes when dropping a tree block ref
Btrfs: update total_bytes_pinned when pinning down extents
Btrfs: make BUG_ON() in add_pinned_bytes() an ASSERT()
Btrfs: make add_pinned_bytes() take an s64 num_bytes instead of u64
btrfs: fix validation of XATTR_ITEM dir items
btrfs: Verify dir_item in iterate_object_props
btrfs: Check name_len before in btrfs_del_root_ref
btrfs: Check name_len before reading btrfs_get_name
...
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 556c930..8d05031 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -86,7 +86,6 @@ static const struct extent_io_ops btrfs_extent_io_ops;
static struct kmem_cache *btrfs_inode_cachep;
struct kmem_cache *btrfs_trans_handle_cachep;
-struct kmem_cache *btrfs_transaction_cachep;
struct kmem_cache *btrfs_path_cachep;
struct kmem_cache *btrfs_free_space_cachep;
@@ -178,7 +177,6 @@ static int insert_inline_extent(struct btrfs_trans_handle *trans,
char *kaddr;
unsigned long ptr;
struct btrfs_file_extent_item *ei;
- int err = 0;
int ret;
size_t cur_size = size;
unsigned long offset;
@@ -200,10 +198,8 @@ static int insert_inline_extent(struct btrfs_trans_handle *trans,
path->leave_spinning = 1;
ret = btrfs_insert_empty_item(trans, root, path, &key,
datasize);
- if (ret) {
- err = ret;
+ if (ret)
goto fail;
- }
}
leaf = path->nodes[0];
ei = btrfs_item_ptr(leaf, path->slots[0],
@@ -258,9 +254,8 @@ static int insert_inline_extent(struct btrfs_trans_handle *trans,
BTRFS_I(inode)->disk_i_size = inode->i_size;
ret = btrfs_update_inode(trans, root, inode);
- return ret;
fail:
- return err;
+ return ret;
}
@@ -350,7 +345,7 @@ static noinline int cow_file_range_inline(struct btrfs_root *root,
* And at reserve time, it's always aligned to page size, so
* just free one page here.
*/
- btrfs_qgroup_free_data(inode, 0, PAGE_SIZE);
+ btrfs_qgroup_free_data(inode, NULL, 0, PAGE_SIZE);
btrfs_free_path(path);
btrfs_end_transaction(trans);
return ret;
@@ -608,12 +603,11 @@ static noinline void compress_file_range(struct inode *inode,
/*
* one last check to make sure the compression is really a
- * win, compare the page count read with the blocks on disk
+ * win, compare the page count read with the blocks on disk,
+ * compression must free at least one sector size
*/
total_in = ALIGN(total_in, PAGE_SIZE);
- if (total_compressed >= total_in) {
- will_compress = 0;
- } else {
+ if (total_compressed + blocksize <= total_in) {
num_bytes = total_in;
*num_added += 1;
@@ -1568,10 +1562,11 @@ static inline int need_force_cow(struct inode *inode, u64 start, u64 end)
/*
* 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);
@@ -1595,9 +1590,10 @@ static int run_delalloc_range(struct inode *inode, struct page *locked_page,
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 */
@@ -1632,10 +1628,11 @@ static void btrfs_split_extent_hook(struct inode *inode,
* 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;
@@ -1735,9 +1732,10 @@ static void btrfs_del_delalloc_inode(struct btrfs_root *root,
* 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);
@@ -1789,10 +1787,11 @@ static void btrfs_set_bit_hook(struct inode *inode,
/*
* 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);
@@ -1900,10 +1899,11 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
* At IO completion time the cums attached on the ordered extent record
* are inserted into the btree
*/
-static blk_status_t __btrfs_submit_bio_start(struct inode *inode,
- struct bio *bio, int mirror_num, unsigned long bio_flags,
- u64 bio_offset)
+static blk_status_t __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;
blk_status_t ret = 0;
ret = btrfs_csum_one_bio(inode, bio, 0, 0);
@@ -1919,10 +1919,11 @@ static blk_status_t __btrfs_submit_bio_start(struct inode *inode,
* At IO completion time the cums attached on the ordered extent record
* are inserted into the btree
*/
-static blk_status_t __btrfs_submit_bio_done(struct inode *inode,
- struct bio *bio, int mirror_num, unsigned long bio_flags,
- u64 bio_offset)
+static blk_status_t __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);
blk_status_t ret;
@@ -1938,10 +1939,11 @@ static blk_status_t __btrfs_submit_bio_done(struct inode *inode,
* 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 blk_status_t btrfs_submit_bio_hook(struct inode *inode, struct bio *bio,
- int mirror_num, unsigned long bio_flags,
- u64 bio_offset)
+static blk_status_t 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;
@@ -1975,8 +1977,8 @@ static blk_status_t btrfs_submit_bio_hook(struct inode *inode, struct bio *bio,
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;
@@ -2034,6 +2036,7 @@ static void btrfs_writepage_fixup_worker(struct btrfs_work *work)
struct btrfs_writepage_fixup *fixup;
struct btrfs_ordered_extent *ordered;
struct extent_state *cached_state = NULL;
+ struct extent_changeset *data_reserved = NULL;
struct page *page;
struct inode *inode;
u64 page_start;
@@ -2071,7 +2074,7 @@ static void btrfs_writepage_fixup_worker(struct btrfs_work *work)
goto again;
}
- ret = btrfs_delalloc_reserve_space(inode, page_start,
+ ret = btrfs_delalloc_reserve_space(inode, &data_reserved, page_start,
PAGE_SIZE);
if (ret) {
mapping_set_error(page->mapping, ret);
@@ -2091,6 +2094,7 @@ static void btrfs_writepage_fixup_worker(struct btrfs_work *work)
unlock_page(page);
put_page(page);
kfree(fixup);
+ extent_changeset_free(data_reserved);
}
/*
@@ -2142,6 +2146,7 @@ static int insert_reserved_file_extent(struct btrfs_trans_handle *trans,
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_key ins;
+ u64 qg_released;
int extent_inserted = 0;
int ret;
@@ -2197,13 +2202,17 @@ static int insert_reserved_file_extent(struct btrfs_trans_handle *trans,
ins.objectid = disk_bytenr;
ins.offset = disk_num_bytes;
ins.type = BTRFS_EXTENT_ITEM_KEY;
- ret = btrfs_alloc_reserved_file_extent(trans, root->root_key.objectid,
- btrfs_ino(BTRFS_I(inode)), file_pos, ram_bytes, &ins);
+
/*
* Release the reserved range from inode dirty range map, as it is
* already moved into delayed_ref_head
*/
- btrfs_qgroup_release_data(inode, file_pos, ram_bytes);
+ ret = btrfs_qgroup_release_data(inode, file_pos, ram_bytes);
+ if (ret < 0)
+ goto out;
+ qg_released = ret;
+ ret = btrfs_alloc_reserved_file_extent(trans, root->root_key.objectid,
+ btrfs_ino(BTRFS_I(inode)), file_pos, qg_released, &ins);
out:
btrfs_free_path(path);
@@ -2925,7 +2934,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
* space for NOCOW range.
* As NOCOW won't cause a new delayed ref, just free the space
*/
- btrfs_qgroup_free_data(inode, ordered_extent->file_offset,
+ btrfs_qgroup_free_data(inode, NULL, ordered_extent->file_offset,
ordered_extent->len);
btrfs_ordered_update_i_size(inode, 0, ordered_extent);
if (nolock)
@@ -4761,6 +4770,7 @@ int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct btrfs_ordered_extent *ordered;
struct extent_state *cached_state = NULL;
+ struct extent_changeset *data_reserved = NULL;
char *kaddr;
u32 blocksize = fs_info->sectorsize;
pgoff_t index = from >> PAGE_SHIFT;
@@ -4775,7 +4785,7 @@ int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
(!len || ((len & (blocksize - 1)) == 0)))
goto out;
- ret = btrfs_delalloc_reserve_space(inode,
+ ret = btrfs_delalloc_reserve_space(inode, &data_reserved,
round_down(from, blocksize), blocksize);
if (ret)
goto out;
@@ -4783,7 +4793,7 @@ int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
again:
page = find_or_create_page(mapping, index, mask);
if (!page) {
- btrfs_delalloc_release_space(inode,
+ btrfs_delalloc_release_space(inode, data_reserved,
round_down(from, blocksize),
blocksize);
ret = -ENOMEM;
@@ -4855,11 +4865,12 @@ int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
out_unlock:
if (ret)
- btrfs_delalloc_release_space(inode, block_start,
+ btrfs_delalloc_release_space(inode, data_reserved, block_start,
blocksize);
unlock_page(page);
put_page(page);
out:
+ extent_changeset_free(data_reserved);
return ret;
}
@@ -5254,7 +5265,7 @@ static void evict_inode_truncate_pages(struct inode *inode)
* Note, end is the bytenr of last byte, so we need + 1 here.
*/
if (state->state & EXTENT_DELALLOC)
- btrfs_qgroup_free_data(inode, start, end - start + 1);
+ btrfs_qgroup_free_data(inode, NULL, start, end - start + 1);
clear_extent_bit(io_tree, start, end,
EXTENT_LOCKED | EXTENT_DIRTY |
@@ -5867,7 +5878,6 @@ static int btrfs_real_readdir(struct file *file, struct dir_context *ctx)
struct inode *inode = file_inode(file);
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
- struct btrfs_item *item;
struct btrfs_dir_item *di;
struct btrfs_key key;
struct btrfs_key found_key;
@@ -5918,7 +5928,6 @@ static int btrfs_real_readdir(struct file *file, struct dir_context *ctx)
continue;
}
- item = btrfs_item_nr(slot);
btrfs_item_key_to_cpu(leaf, &found_key, slot);
if (found_key.objectid != key.objectid)
@@ -5933,7 +5942,7 @@ static int btrfs_real_readdir(struct file *file, struct dir_context *ctx)
ctx->pos = found_key.offset;
di = btrfs_item_ptr(leaf, slot, struct btrfs_dir_item);
- if (verify_dir_item(fs_info, leaf, di))
+ if (verify_dir_item(fs_info, leaf, slot, di))
goto next;
name_len = btrfs_dir_name_len(leaf, di);
@@ -7479,7 +7488,7 @@ noinline int can_nocow_extent(struct inode *inode, u64 offset, u64 *len,
bool btrfs_page_exists_in_range(struct inode *inode, loff_t start, loff_t end)
{
struct radix_tree_root *root = &inode->i_mapping->page_tree;
- int found = false;
+ bool found = false;
void **pagep = NULL;
struct page *page = NULL;
unsigned long start_idx;
@@ -7977,9 +7986,12 @@ static int dio_read_error(struct inode *inode, struct bio *failed_bio,
bio_end_io_t *repair_endio, void *repair_arg)
{
struct io_failure_record *failrec;
+ struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
+ struct extent_io_tree *failure_tree = &BTRFS_I(inode)->io_failure_tree;
struct bio *bio;
int isector;
int read_mode = 0;
+ int segs;
int ret;
BUG_ON(bio_op(failed_bio) == REQ_OP_WRITE);
@@ -7991,13 +8003,13 @@ static int dio_read_error(struct inode *inode, struct bio *failed_bio,
ret = btrfs_check_dio_repairable(inode, failed_bio, failrec,
failed_mirror);
if (!ret) {
- free_io_failure(BTRFS_I(inode), failrec);
+ free_io_failure(failure_tree, io_tree, failrec);
return -EIO;
}
- if ((failed_bio->bi_vcnt > 1)
- || (failed_bio->bi_io_vec->bv_len
- > btrfs_inode_sectorsize(inode)))
+ segs = bio_segments(failed_bio);
+ if (segs > 1 ||
+ (failed_bio->bi_io_vec->bv_len > btrfs_inode_sectorsize(inode)))
read_mode |= REQ_FAILFAST_DEV;
isector = start - btrfs_io_bio(failed_bio)->logical;
@@ -8005,7 +8017,7 @@ static int dio_read_error(struct inode *inode, struct bio *failed_bio,
bio = btrfs_create_repair_bio(inode, failed_bio, failrec, page,
pgoff, isector, repair_endio, repair_arg);
if (!bio) {
- free_io_failure(BTRFS_I(inode), failrec);
+ free_io_failure(failure_tree, io_tree, failrec);
return -EIO;
}
bio_set_op_attrs(bio, REQ_OP_READ, read_mode);
@@ -8016,7 +8028,7 @@ static int dio_read_error(struct inode *inode, struct bio *failed_bio,
ret = submit_dio_repair_bio(inode, bio, failrec->this_mirror);
if (ret) {
- free_io_failure(BTRFS_I(inode), failrec);
+ free_io_failure(failure_tree, io_tree, failrec);
bio_put(bio);
}
@@ -8033,19 +8045,24 @@ struct btrfs_retry_complete {
static void btrfs_retry_endio_nocsum(struct bio *bio)
{
struct btrfs_retry_complete *done = bio->bi_private;
+ struct inode *inode = done->inode;
struct bio_vec *bvec;
+ struct extent_io_tree *io_tree, *failure_tree;
int i;
if (bio->bi_status)
goto end;
ASSERT(bio->bi_vcnt == 1);
- ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(done->inode));
+ io_tree = &BTRFS_I(inode)->io_tree;
+ failure_tree = &BTRFS_I(inode)->io_failure_tree;
+ ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(inode));
done->uptodate = 1;
bio_for_each_segment_all(bvec, bio, i)
- clean_io_failure(BTRFS_I(done->inode), done->start,
- bvec->bv_page, 0);
+ clean_io_failure(BTRFS_I(inode)->root->fs_info, failure_tree,
+ io_tree, done->start, bvec->bv_page,
+ btrfs_ino(BTRFS_I(inode)), 0);
end:
complete(&done->done);
bio_put(bio);
@@ -8055,36 +8072,40 @@ static int __btrfs_correct_data_nocsum(struct inode *inode,
struct btrfs_io_bio *io_bio)
{
struct btrfs_fs_info *fs_info;
- struct bio_vec *bvec;
+ struct bio_vec bvec;
+ struct bvec_iter iter;
struct btrfs_retry_complete done;
u64 start;
unsigned int pgoff;
u32 sectorsize;
int nr_sectors;
- int i;
int ret;
+ int err = 0;
fs_info = BTRFS_I(inode)->root->fs_info;
sectorsize = fs_info->sectorsize;
start = io_bio->logical;
done.inode = inode;
+ io_bio->bio.bi_iter = io_bio->iter;
- bio_for_each_segment_all(bvec, &io_bio->bio, i) {
- nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info, bvec->bv_len);
- pgoff = bvec->bv_offset;
+ bio_for_each_segment(bvec, &io_bio->bio, iter) {
+ nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info, bvec.bv_len);
+ pgoff = bvec.bv_offset;
next_block_or_try_again:
done.uptodate = 0;
done.start = start;
init_completion(&done.done);
- ret = dio_read_error(inode, &io_bio->bio, bvec->bv_page,
+ ret = dio_read_error(inode, &io_bio->bio, bvec.bv_page,
pgoff, start, start + sectorsize - 1,
io_bio->mirror_num,
btrfs_retry_endio_nocsum, &done);
- if (ret)
- return ret;
+ if (ret) {
+ err = ret;
+ goto next;
+ }
wait_for_completion(&done.done);
@@ -8093,6 +8114,7 @@ static int __btrfs_correct_data_nocsum(struct inode *inode,
goto next_block_or_try_again;
}
+next:
start += sectorsize;
nr_sectors--;
@@ -8103,13 +8125,15 @@ static int __btrfs_correct_data_nocsum(struct inode *inode,
}
}
- return 0;
+ return err;
}
static void btrfs_retry_endio(struct bio *bio)
{
struct btrfs_retry_complete *done = bio->bi_private;
struct btrfs_io_bio *io_bio = btrfs_io_bio(bio);
+ struct extent_io_tree *io_tree, *failure_tree;
+ struct inode *inode = done->inode;
struct bio_vec *bvec;
int uptodate;
int ret;
@@ -8123,13 +8147,19 @@ static void btrfs_retry_endio(struct bio *bio)
ASSERT(bio->bi_vcnt == 1);
ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(done->inode));
+ io_tree = &BTRFS_I(inode)->io_tree;
+ failure_tree = &BTRFS_I(inode)->io_failure_tree;
+
bio_for_each_segment_all(bvec, bio, i) {
- ret = __readpage_endio_check(done->inode, io_bio, i,
- bvec->bv_page, bvec->bv_offset,
- done->start, bvec->bv_len);
+ ret = __readpage_endio_check(inode, io_bio, i, bvec->bv_page,
+ bvec->bv_offset, done->start,
+ bvec->bv_len);
if (!ret)
- clean_io_failure(BTRFS_I(done->inode), done->start,
- bvec->bv_page, bvec->bv_offset);
+ clean_io_failure(BTRFS_I(inode)->root->fs_info,
+ failure_tree, io_tree, done->start,
+ bvec->bv_page,
+ btrfs_ino(BTRFS_I(inode)),
+ bvec->bv_offset);
else
uptodate = 0;
}
@@ -8144,7 +8174,8 @@ static blk_status_t __btrfs_subio_endio_read(struct inode *inode,
struct btrfs_io_bio *io_bio, blk_status_t err)
{
struct btrfs_fs_info *fs_info;
- struct bio_vec *bvec;
+ struct bio_vec bvec;
+ struct bvec_iter iter;
struct btrfs_retry_complete done;
u64 start;
u64 offset = 0;
@@ -8152,7 +8183,7 @@ static blk_status_t __btrfs_subio_endio_read(struct inode *inode,
int nr_sectors;
unsigned int pgoff;
int csum_pos;
- int i;
+ bool uptodate = (err == 0);
int ret;
fs_info = BTRFS_I(inode)->root->fs_info;
@@ -8161,24 +8192,26 @@ static blk_status_t __btrfs_subio_endio_read(struct inode *inode,
err = 0;
start = io_bio->logical;
done.inode = inode;
+ io_bio->bio.bi_iter = io_bio->iter;
- bio_for_each_segment_all(bvec, &io_bio->bio, i) {
- nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info, bvec->bv_len);
+ bio_for_each_segment(bvec, &io_bio->bio, iter) {
+ nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info, bvec.bv_len);
- pgoff = bvec->bv_offset;
+ pgoff = bvec.bv_offset;
next_block:
- csum_pos = BTRFS_BYTES_TO_BLKS(fs_info, offset);
- ret = __readpage_endio_check(inode, io_bio, csum_pos,
- bvec->bv_page, pgoff, start,
- sectorsize);
- if (likely(!ret))
- goto next;
+ if (uptodate) {
+ csum_pos = BTRFS_BYTES_TO_BLKS(fs_info, offset);
+ ret = __readpage_endio_check(inode, io_bio, csum_pos,
+ bvec.bv_page, pgoff, start, sectorsize);
+ if (likely(!ret))
+ goto next;
+ }
try_again:
done.uptodate = 0;
done.start = start;
init_completion(&done.done);
- ret = dio_read_error(inode, &io_bio->bio, bvec->bv_page,
+ ret = dio_read_error(inode, &io_bio->bio, bvec.bv_page,
pgoff, start, start + sectorsize - 1,
io_bio->mirror_num,
btrfs_retry_endio, &done);
@@ -8233,8 +8266,11 @@ static void btrfs_endio_direct_read(struct bio *bio)
struct btrfs_io_bio *io_bio = btrfs_io_bio(bio);
blk_status_t err = bio->bi_status;
- if (dip->flags & BTRFS_DIO_ORIG_BIO_SUBMITTED)
+ if (dip->flags & BTRFS_DIO_ORIG_BIO_SUBMITTED) {
err = btrfs_subio_endio_read(inode, io_bio, err);
+ if (!err)
+ bio->bi_status = 0;
+ }
unlock_extent(&BTRFS_I(inode)->io_tree, dip->logical_offset,
dip->logical_offset + dip->bytes - 1);
@@ -8307,10 +8343,11 @@ static void btrfs_endio_direct_write(struct bio *bio)
bio_put(bio);
}
-static blk_status_t __btrfs_submit_bio_start_direct_io(struct inode *inode,
+static blk_status_t __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;
blk_status_t ret;
ret = btrfs_csum_one_bio(inode, bio, offset, 1);
BUG_ON(ret); /* -ENOMEM */
@@ -8357,16 +8394,6 @@ static void btrfs_end_dio_bio(struct bio *bio)
bio_put(bio);
}
-static struct bio *btrfs_dio_bio_alloc(struct block_device *bdev,
- u64 first_sector, gfp_t gfp_flags)
-{
- struct bio *bio;
- bio = btrfs_bio_alloc(bdev, first_sector, BIO_MAX_PAGES, gfp_flags);
- if (bio)
- bio_associate_current(bio);
- return bio;
-}
-
static inline blk_status_t btrfs_lookup_and_bind_dio_csum(struct inode *inode,
struct btrfs_dio_private *dip,
struct bio *bio,
@@ -8422,8 +8449,8 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
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;
@@ -8453,103 +8480,83 @@ static int btrfs_submit_direct_hook(struct btrfs_dio_private *dip,
{
struct inode *inode = dip->inode;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
- struct btrfs_root *root = BTRFS_I(inode)->root;
struct bio *bio;
struct bio *orig_bio = dip->orig_bio;
- struct bio_vec *bvec;
u64 start_sector = orig_bio->bi_iter.bi_sector;
u64 file_offset = dip->logical_offset;
- u64 submit_len = 0;
u64 map_length;
- u32 blocksize = fs_info->sectorsize;
int async_submit = 0;
- int nr_sectors;
+ u64 submit_len;
+ int clone_offset = 0;
+ int clone_len;
int ret;
- int i, j;
map_length = orig_bio->bi_iter.bi_size;
+ submit_len = map_length;
ret = btrfs_map_block(fs_info, btrfs_op(orig_bio), start_sector << 9,
&map_length, NULL, 0);
if (ret)
return -EIO;
- if (map_length >= orig_bio->bi_iter.bi_size) {
+ if (map_length >= submit_len) {
bio = orig_bio;
dip->flags |= BTRFS_DIO_ORIG_BIO_SUBMITTED;
goto submit;
}
/* async crcs make it difficult to collect full stripe writes. */
- if (btrfs_get_alloc_profile(root, 1) & BTRFS_BLOCK_GROUP_RAID56_MASK)
+ if (btrfs_data_alloc_profile(fs_info) & BTRFS_BLOCK_GROUP_RAID56_MASK)
async_submit = 0;
else
async_submit = 1;
- bio = btrfs_dio_bio_alloc(orig_bio->bi_bdev, start_sector, GFP_NOFS);
- if (!bio)
- return -ENOMEM;
-
- bio->bi_opf = orig_bio->bi_opf;
- bio->bi_private = dip;
- bio->bi_end_io = btrfs_end_dio_bio;
- btrfs_io_bio(bio)->logical = file_offset;
+ /* bio split */
+ ASSERT(map_length <= INT_MAX);
atomic_inc(&dip->pending_bios);
+ do {
+ clone_len = min_t(int, submit_len, map_length);
- bio_for_each_segment_all(bvec, orig_bio, j) {
- nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info, bvec->bv_len);
- i = 0;
-next_block:
- if (unlikely(map_length < submit_len + blocksize ||
- bio_add_page(bio, bvec->bv_page, blocksize,
- bvec->bv_offset + (i * blocksize)) < blocksize)) {
- /*
- * inc the count before we submit the bio so
- * we know the end IO handler won't happen before
- * we inc the count. Otherwise, the dip might get freed
- * before we're done setting it up
- */
- atomic_inc(&dip->pending_bios);
- ret = __btrfs_submit_dio_bio(bio, inode,
- file_offset, skip_sum,
- async_submit);
- if (ret) {
- bio_put(bio);
- atomic_dec(&dip->pending_bios);
- goto out_err;
- }
+ /*
+ * This will never fail as it's passing GPF_NOFS and
+ * the allocation is backed by btrfs_bioset.
+ */
+ bio = btrfs_bio_clone_partial(orig_bio, clone_offset,
+ clone_len);
+ bio->bi_private = dip;
+ bio->bi_end_io = btrfs_end_dio_bio;
+ btrfs_io_bio(bio)->logical = file_offset;
- start_sector += submit_len >> 9;
- file_offset += submit_len;
+ ASSERT(submit_len >= clone_len);
+ submit_len -= clone_len;
+ if (submit_len == 0)
+ break;
- submit_len = 0;
+ /*
+ * Increase the count before we submit the bio so we know
+ * the end IO handler won't happen before we increase the
+ * count. Otherwise, the dip might get freed before we're
+ * done setting it up.
+ */
+ atomic_inc(&dip->pending_bios);
- bio = btrfs_dio_bio_alloc(orig_bio->bi_bdev,
- start_sector, GFP_NOFS);
- if (!bio)
- goto out_err;
- bio->bi_opf = orig_bio->bi_opf;
- bio->bi_private = dip;
- bio->bi_end_io = btrfs_end_dio_bio;
- btrfs_io_bio(bio)->logical = file_offset;
-
- map_length = orig_bio->bi_iter.bi_size;
- ret = btrfs_map_block(fs_info, btrfs_op(orig_bio),
- start_sector << 9,
- &map_length, NULL, 0);
- if (ret) {
- bio_put(bio);
- goto out_err;
- }
-
- goto next_block;
- } else {
- submit_len += blocksize;
- if (--nr_sectors) {
- i++;
- goto next_block;
- }
+ ret = __btrfs_submit_dio_bio(bio, inode, file_offset, skip_sum,
+ async_submit);
+ if (ret) {
+ bio_put(bio);
+ atomic_dec(&dip->pending_bios);
+ goto out_err;
}
- }
+
+ clone_offset += clone_len;
+ start_sector += clone_len >> 9;
+ file_offset += clone_len;
+
+ map_length = submit_len;
+ ret = btrfs_map_block(fs_info, btrfs_op(orig_bio),
+ start_sector << 9, &map_length, NULL, 0);
+ if (ret)
+ goto out_err;
+ } while (submit_len > 0);
submit:
ret = __btrfs_submit_dio_bio(bio, inode, file_offset, skip_sum,
@@ -8576,19 +8583,15 @@ static void btrfs_submit_direct(struct bio *dio_bio, struct inode *inode,
loff_t file_offset)
{
struct btrfs_dio_private *dip = NULL;
- struct bio *io_bio = NULL;
- struct btrfs_io_bio *btrfs_bio;
+ struct bio *bio = NULL;
+ struct btrfs_io_bio *io_bio;
int skip_sum;
bool write = (bio_op(dio_bio) == REQ_OP_WRITE);
int ret = 0;
skip_sum = BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM;
- io_bio = btrfs_bio_clone(dio_bio, GFP_NOFS);
- if (!io_bio) {
- ret = -ENOMEM;
- goto free_ordered;
- }
+ bio = btrfs_bio_clone(dio_bio);
dip = kzalloc(sizeof(*dip), GFP_NOFS);
if (!dip) {
@@ -8601,17 +8604,17 @@ static void btrfs_submit_direct(struct bio *dio_bio, struct inode *inode,
dip->logical_offset = file_offset;
dip->bytes = dio_bio->bi_iter.bi_size;
dip->disk_bytenr = (u64)dio_bio->bi_iter.bi_sector << 9;
- io_bio->bi_private = dip;
- dip->orig_bio = io_bio;
+ bio->bi_private = dip;
+ dip->orig_bio = bio;
dip->dio_bio = dio_bio;
atomic_set(&dip->pending_bios, 0);
- btrfs_bio = btrfs_io_bio(io_bio);
- btrfs_bio->logical = file_offset;
+ io_bio = btrfs_io_bio(bio);
+ io_bio->logical = file_offset;
if (write) {
- io_bio->bi_end_io = btrfs_endio_direct_write;
+ bio->bi_end_io = btrfs_endio_direct_write;
} else {
- io_bio->bi_end_io = btrfs_endio_direct_read;
+ bio->bi_end_io = btrfs_endio_direct_read;
dip->subio_endio = btrfs_subio_endio_read;
}
@@ -8634,8 +8637,8 @@ static void btrfs_submit_direct(struct bio *dio_bio, struct inode *inode,
if (!ret)
return;
- if (btrfs_bio->end_io)
- btrfs_bio->end_io(btrfs_bio, ret);
+ if (io_bio->end_io)
+ io_bio->end_io(io_bio, ret);
free_ordered:
/*
@@ -8647,16 +8650,15 @@ static void btrfs_submit_direct(struct bio *dio_bio, struct inode *inode,
* same as btrfs_endio_direct_[write|read] because we can't call these
* callbacks - they require an allocated dip and a clone of dio_bio.
*/
- if (io_bio && dip) {
- io_bio->bi_status = BLK_STS_IOERR;
- bio_endio(io_bio);
+ if (bio && dip) {
+ bio_io_error(bio);
/*
- * The end io callbacks free our dip, do the final put on io_bio
+ * The end io callbacks free our dip, do the final put on bio
* and all the cleanup and final put for dio_bio (through
* dio_end_io()).
*/
dip = NULL;
- io_bio = NULL;
+ bio = NULL;
} else {
if (write)
__endio_write_update_ordered(inode,
@@ -8674,8 +8676,8 @@ static void btrfs_submit_direct(struct bio *dio_bio, struct inode *inode,
*/
dio_end_io(dio_bio);
}
- if (io_bio)
- bio_put(io_bio);
+ if (bio)
+ bio_put(bio);
kfree(dip);
}
@@ -8719,6 +8721,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
struct inode *inode = file->f_mapping->host;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_dio_data dio_data = { 0 };
+ struct extent_changeset *data_reserved = NULL;
loff_t offset = iocb->ki_pos;
size_t count = 0;
int flags = 0;
@@ -8758,7 +8761,8 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
ret = -EAGAIN;
goto out;
}
- ret = btrfs_delalloc_reserve_space(inode, offset, count);
+ ret = btrfs_delalloc_reserve_space(inode, &data_reserved,
+ offset, count);
if (ret)
goto out;
dio_data.outstanding_extents = count_max_extents(count);
@@ -8790,8 +8794,8 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
current->journal_info = NULL;
if (ret < 0 && ret != -EIOCBQUEUED) {
if (dio_data.reserve)
- btrfs_delalloc_release_space(inode, offset,
- dio_data.reserve);
+ btrfs_delalloc_release_space(inode, data_reserved,
+ offset, dio_data.reserve);
/*
* On error we might have left some ordered extents
* without submitting corresponding bios for them, so
@@ -8806,8 +8810,8 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
dio_data.unsubmitted_oe_range_start,
false);
} else if (ret >= 0 && (size_t)ret < count)
- btrfs_delalloc_release_space(inode, offset,
- count - (size_t)ret);
+ btrfs_delalloc_release_space(inode, data_reserved,
+ offset, count - (size_t)ret);
}
out:
if (wakeup)
@@ -8815,6 +8819,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
if (relock)
inode_lock(inode);
+ extent_changeset_free(data_reserved);
return ret;
}
@@ -9005,7 +9010,7 @@ static void btrfs_invalidatepage(struct page *page, unsigned int offset,
* free the entire extent.
*/
if (PageDirty(page))
- btrfs_qgroup_free_data(inode, page_start, PAGE_SIZE);
+ btrfs_qgroup_free_data(inode, NULL, page_start, PAGE_SIZE);
if (!inode_evicting) {
clear_extent_bit(tree, page_start, page_end,
EXTENT_LOCKED | EXTENT_DIRTY |
@@ -9047,6 +9052,7 @@ int btrfs_page_mkwrite(struct vm_fault *vmf)
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct btrfs_ordered_extent *ordered;
struct extent_state *cached_state = NULL;
+ struct extent_changeset *data_reserved = NULL;
char *kaddr;
unsigned long zero_start;
loff_t size;
@@ -9072,7 +9078,7 @@ int btrfs_page_mkwrite(struct vm_fault *vmf)
* end up waiting indefinitely to get a lock on the page currently
* being processed by btrfs_page_mkwrite() function.
*/
- ret = btrfs_delalloc_reserve_space(inode, page_start,
+ ret = btrfs_delalloc_reserve_space(inode, &data_reserved, page_start,
reserved_space);
if (!ret) {
ret = file_update_time(vmf->vma->vm_file);
@@ -9126,8 +9132,8 @@ int btrfs_page_mkwrite(struct vm_fault *vmf)
spin_lock(&BTRFS_I(inode)->lock);
BTRFS_I(inode)->outstanding_extents++;
spin_unlock(&BTRFS_I(inode)->lock);
- btrfs_delalloc_release_space(inode, page_start,
- PAGE_SIZE - reserved_space);
+ btrfs_delalloc_release_space(inode, data_reserved,
+ page_start, PAGE_SIZE - reserved_space);
}
}
@@ -9178,13 +9184,16 @@ int btrfs_page_mkwrite(struct vm_fault *vmf)
out_unlock:
if (!ret) {
sb_end_pagefault(inode->i_sb);
+ extent_changeset_free(data_reserved);
return VM_FAULT_LOCKED;
}
unlock_page(page);
out:
- btrfs_delalloc_release_space(inode, page_start, reserved_space);
+ btrfs_delalloc_release_space(inode, data_reserved, page_start,
+ reserved_space);
out_noreserve:
sb_end_pagefault(inode->i_sb);
+ extent_changeset_free(data_reserved);
return ret;
}
@@ -9406,8 +9415,8 @@ struct inode *btrfs_alloc_inode(struct super_block *sb)
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);
@@ -9516,7 +9525,6 @@ void btrfs_destroy_cachep(void)
rcu_barrier();
kmem_cache_destroy(btrfs_inode_cachep);
kmem_cache_destroy(btrfs_trans_handle_cachep);
- kmem_cache_destroy(btrfs_transaction_cachep);
kmem_cache_destroy(btrfs_path_cachep);
kmem_cache_destroy(btrfs_free_space_cachep);
}
@@ -9536,12 +9544,6 @@ int btrfs_init_cachep(void)
if (!btrfs_trans_handle_cachep)
goto fail;
- btrfs_transaction_cachep = kmem_cache_create("btrfs_transaction",
- sizeof(struct btrfs_transaction), 0,
- SLAB_TEMPORARY | SLAB_MEM_SPREAD, NULL);
- if (!btrfs_transaction_cachep)
- goto fail;
-
btrfs_path_cachep = kmem_cache_create("btrfs_path",
sizeof(struct btrfs_path), 0,
SLAB_MEM_SPREAD, NULL);
@@ -9566,6 +9568,24 @@ static int btrfs_getattr(const struct path *path, struct kstat *stat,
u64 delalloc_bytes;
struct inode *inode = d_inode(path->dentry);
u32 blocksize = inode->i_sb->s_blocksize;
+ u32 bi_flags = BTRFS_I(inode)->flags;
+
+ stat->result_mask |= STATX_BTIME;
+ stat->btime.tv_sec = BTRFS_I(inode)->i_otime.tv_sec;
+ stat->btime.tv_nsec = BTRFS_I(inode)->i_otime.tv_nsec;
+ if (bi_flags & BTRFS_INODE_APPEND)
+ stat->attributes |= STATX_ATTR_APPEND;
+ if (bi_flags & BTRFS_INODE_COMPRESS)
+ stat->attributes |= STATX_ATTR_COMPRESSED;
+ if (bi_flags & BTRFS_INODE_IMMUTABLE)
+ stat->attributes |= STATX_ATTR_IMMUTABLE;
+ if (bi_flags & BTRFS_INODE_NODUMP)
+ stat->attributes |= STATX_ATTR_NODUMP;
+
+ stat->attributes_mask |= (STATX_ATTR_APPEND |
+ STATX_ATTR_COMPRESSED |
+ STATX_ATTR_IMMUTABLE |
+ STATX_ATTR_NODUMP);
generic_fillattr(inode, stat);
stat->dev = BTRFS_I(inode)->root->anon_dev;
@@ -10540,7 +10560,7 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode,
btrfs_end_transaction(trans);
}
if (cur_offset < end)
- btrfs_free_reserved_data_space(inode, cur_offset,
+ btrfs_free_reserved_data_space(inode, NULL, cur_offset,
end - cur_offset + 1);
return ret;
}
@@ -10661,6 +10681,42 @@ static int btrfs_readpage_io_failed_hook(struct page *page, int failed_mirror)
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,
@@ -10704,6 +10760,8 @@ static const struct extent_io_ops btrfs_extent_io_ops = {
.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,
@@ -10713,6 +10771,7 @@ static const struct extent_io_ops btrfs_extent_io_ops = {
.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,
};
/*