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fa1a0f42a0
linux/fs/btrfs
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Naohiro Aota fa1a0f42a0 btrfs: zoned: serialize log transaction on zoned filesystems 
This is the 2/3 patch to enable tree-log on zoned filesystems.

Since we can start more than one log transactions per subvolume
simultaneously, nodes from multiple transactions can be allocated
interleaved. Such mixed allocation results in non-sequential writes at
the time of a log transaction commit. The nodes of the global log root
tree (fs_info->log_root_tree), also have the same problem with mixed
allocation.

Serializes log transactions by waiting for a committing transaction when
someone tries to start a new transaction, to avoid the mixed allocation
problem. We must also wait for running log transactions from another
subvolume, but there is no easy way to detect which subvolume root is
running a log transaction. So, this patch forbids starting a new log
transaction when other subvolumes already allocated the global log root
tree.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2021-02-09 02:48:37 +01:00
..
tests btrfs: extend btrfs_rmap_block for specifying a device 2021-02-09 02:46:05 +01:00
acl.c
async-thread.c
async-thread.h
backref.c btrfs: do not warn if we can't find the reloc root when looking up backref 2021-02-08 22:58:56 +01:00
backref.h btrfs: add asserts for deleting backref cache nodes 2021-02-08 22:58:56 +01:00
block-group.c btrfs: zoned: extend zoned allocator to use dedicated tree-log block group 2021-02-09 02:46:08 +01:00
block-group.h btrfs: zoned: relocate block group to repair IO failure in zoned filesystems 2021-02-09 02:46:07 +01:00
block-rsv.c btrfs: introduce mount option rescue=ignorebadroots 2020-12-08 15:53:41 +01:00
block-rsv.h
btrfs_inode.h btrfs: make btrfs_dio_private::bytes u32 2021-02-08 22:58:51 +01:00
check-integrity.c btrfs: drop casts of bio bi_sector 2020-12-09 19:16:05 +01:00
check-integrity.h
compression.c btrfs: introduce btrfs_subpage for data inodes 2021-02-08 22:59:03 +01:00
compression.h btrfs: compression: move declarations to header 2020-10-07 12:06:55 +02:00
ctree.c btrfs: fix extent buffer leak on failure to copy root 2021-02-08 22:59:04 +01:00
ctree.h btrfs: zoned: extend zoned allocator to use dedicated tree-log block group 2021-02-09 02:46:08 +01:00
delalloc-space.c btrfs: fix parameter description of btrfs_inode_rsv_release/btrfs_delalloc_release_space 2021-02-08 22:58:54 +01:00
delalloc-space.h
delayed-inode.c btrfs: simplify condition in __btrfs_run_delayed_items 2021-02-08 22:58:59 +01:00
delayed-inode.h btrfs: make btrfs_delayed_update_inode take btrfs_inode 2020-12-08 15:54:10 +01:00
delayed-ref.c btrfs: account for new extents being deleted in total_bytes_pinned 2021-02-08 22:58:55 +01:00
delayed-ref.h btrfs: only let one thread pre-flush delayed refs in commit 2021-02-08 22:58:56 +01:00
dev-replace.c btrfs: zoned: mark block groups to copy for device-replace 2021-02-09 02:46:07 +01:00
dev-replace.h btrfs: zoned: mark block groups to copy for device-replace 2021-02-09 02:46:07 +01:00
dir-item.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
discard.c btrfs: document now parameter of peek_discard_list 2021-02-08 22:58:53 +01:00
discard.h btrfs: cleanup btrfs_discard_update_discardable usage 2020-12-08 15:54:02 +01:00
disk-io.c btrfs: zoned: extend zoned allocator to use dedicated tree-log block group 2021-02-09 02:46:08 +01:00
disk-io.h btrfs: split alloc_log_tree() 2021-02-09 02:46:07 +01:00
export.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
export.h
extent_io.c btrfs: zoned: relocate block group to repair IO failure in zoned filesystems 2021-02-09 02:46:07 +01:00
extent_io.h btrfs: zoned: redirty released extent buffers 2021-02-09 02:46:04 +01:00
extent_map.c btrfs: fix parameter description of btrfs_add_extent_mapping 2021-02-08 22:58:53 +01:00
extent_map.h
extent-io-tree.h btrfs: use fixed width int type for extent_state::state 2020-12-08 15:54:13 +01:00
extent-tree.c btrfs: zoned: extend zoned allocator to use dedicated tree-log block group 2021-02-09 02:46:08 +01:00
file-item.c btrfs: fix function description formats in file-item.c 2021-02-08 22:58:53 +01:00
file.c btrfs: zoned: use ZONE_APPEND write for zoned mode 2021-02-09 02:46:06 +01:00
free-space-cache.c btrfs: zoned: advance allocation pointer after tree log node 2021-02-09 02:46:04 +01:00
free-space-cache.h btrfs: zoned: track unusable bytes for zones 2021-02-09 02:46:03 +01:00
free-space-tree.c btrfs: fix possible free space tree corruption with online conversion 2021-01-25 18:44:37 +01:00
free-space-tree.h
inode-item.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
inode.c btrfs: zoned: wait for existing extents before truncating 2021-02-09 02:46:07 +01:00
ioctl.c btrfs: zoned: disallow fitrim on zoned filesystems 2021-02-09 02:32:20 +01:00
Kconfig btrfs: switch to iomap for direct IO 2020-10-07 12:06:57 +02:00
locking.c btrfs: remove the recurse parameter from __btrfs_tree_read_lock 2020-12-08 15:54:09 +01:00
locking.h btrfs: remove the recurse parameter from __btrfs_tree_read_lock 2020-12-08 15:54:09 +01:00
lzo.c
Makefile btrfs: introduce the skeleton of btrfs_subpage structure 2021-02-08 22:59:01 +01:00
misc.h
ordered-data.c btrfs: zoned: use ZONE_APPEND write for zoned mode 2021-02-09 02:46:06 +01:00
ordered-data.h btrfs: zoned: use ZONE_APPEND write for zoned mode 2021-02-09 02:46:06 +01:00
orphan.c
print-tree.c btrfs: print the actual offset in btrfs_root_name 2021-01-07 17:25:05 +01:00
print-tree.h btrfs: print the actual offset in btrfs_root_name 2021-01-07 17:25:05 +01:00
props.c
props.h
qgroup.c btrfs: fix transaction leak and crash after RO remount caused by qgroup rescan 2020-12-18 14:59:57 +01:00
qgroup.h
raid56.c btrfs: remove redundant NULL check before kvfree 2021-02-08 22:58:52 +01:00
raid56.h
rcu-string.h
reada.c btrfs: pass the owner_root and level to alloc_extent_buffer 2020-12-08 15:54:07 +01:00
ref-verify.c btrfs: ref-verify: make sure owner is set for all refs 2021-02-08 22:58:50 +01:00
ref-verify.h
reflink.c btrfs: introduce btrfs_subpage for data inodes 2021-02-08 22:59:03 +01:00
reflink.h
relocation.c btrfs: zoned: enable relocation on a zoned filesystem 2021-02-09 02:46:07 +01:00
root-tree.c btrfs: qgroup: fix qgroup meta rsv leak for subvolume operations 2020-10-07 12:12:13 +02:00
scrub.c btrfs: zoned: relocate block group to repair IO failure in zoned filesystems 2021-02-09 02:46:07 +01:00
send.c btrfs: send: use struct send_ctx *sctx for btrfs_compare_trees and changed_cb 2021-02-08 22:58:57 +01:00
send.h btrfs: send: avoid copying file data 2020-10-07 12:13:17 +02:00
space-info.c btrfs: zoned: track unusable bytes for zones 2021-02-09 02:46:03 +01:00
space-info.h btrfs: zoned: track unusable bytes for zones 2021-02-09 02:46:03 +01:00
struct-funcs.c btrfs: handle sectorsize < PAGE_SIZE case for extent buffer accessors 2020-12-09 19:16:10 +01:00
subpage.c btrfs: integrate page status update for data read path into begin/end_page_read 2021-02-08 22:59:03 +01:00
subpage.h btrfs: integrate page status update for data read path into begin/end_page_read 2021-02-08 22:59:03 +01:00
super.c btrfs: allow read-only mount of 4K sector size fs on 64K page system 2021-02-08 22:59:03 +01:00
sysfs.c btrfs: zoned: track unusable bytes for zones 2021-02-09 02:46:03 +01:00
sysfs.h btrfs: split and refactor btrfs_sysfs_remove_devices_dir 2020-10-07 12:12:21 +02:00
transaction.c btrfs: zoned: redirty released extent buffers 2021-02-09 02:46:04 +01:00
transaction.h btrfs: zoned: redirty released extent buffers 2021-02-09 02:46:04 +01:00
tree-checker.c btrfs: tree-checker: check if chunk item end overflows 2021-01-07 17:25:05 +01:00
tree-checker.h
tree-defrag.c btrfs: locking: remove all the blocking helpers 2020-12-08 15:54:01 +01:00
tree-log.c btrfs: zoned: serialize log transaction on zoned filesystems 2021-02-09 02:48:37 +01:00
tree-log.h btrfs: make fast fsyncs wait only for writeback 2020-10-07 12:06:56 +02:00
ulist.c
ulist.h
uuid-tree.c btrfs: remove unnecessary casts in printk 2020-12-08 15:53:52 +01:00
volumes.c btrfs: zoned: relocate block group to repair IO failure in zoned filesystems 2021-02-09 02:46:07 +01:00
volumes.h btrfs: zoned: relocate block group to repair IO failure in zoned filesystems 2021-02-09 02:46:07 +01:00
xattr.c btrfs: skip unnecessary searches for xattrs when logging an inode 2020-12-08 15:54:12 +01:00
xattr.h
zlib.c
zoned.c btrfs: zoned: support dev-replace in zoned filesystems 2021-02-09 02:46:07 +01:00
zoned.h btrfs: zoned: extend zoned allocator to use dedicated tree-log block group 2021-02-09 02:46:08 +01:00
zstd.c