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Naohiro Aota f1569c4c10 btrfs: disable fallocate in ZONED mode 
fallocate() is implemented by reserving actual extent instead of
reservations. This can result in exposing the sequential write
constraint of host-managed zoned block devices to the application, which
would break the POSIX semantic for the fallocated file.  To avoid this,
report fallocate() as not supported when in ZONED mode for now.

In the future, we may be able to implement "in-memory" fallocate() in
ZONED mode by utilizing space_info->bytes_may_use or similar, so this
returns EOPNOTSUPP.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2020-12-09 19:16:04 +01:00
..
tests
btrfs: tests: remove invalid extent-io test
2020-12-08 15:54:13 +01:00
acl.c
btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter
2019-04-29 19:02:44 +02:00
async-thread.c
Btrfs: fix crash during unmount due to race with delayed inode workers
2020-03-23 17:01:51 +01:00
async-thread.h
Btrfs: fix crash during unmount due to race with delayed inode workers
2020-03-23 17:01:51 +01:00
backref.c
btrfs: pass root owner to read_tree_block
2020-12-08 15:54:07 +01:00
backref.h
btrfs: rename BTRFS_ROOT_REF_COWS to BTRFS_ROOT_SHAREABLE
2020-05-25 11:25:35 +02:00
block-group.c
btrfs: make btrfs_update_inode take btrfs_inode
2020-12-08 15:54:11 +01:00
block-group.h
btrfs: load free space cache asynchronously
2020-12-08 15:54:03 +01:00
block-rsv.c
btrfs: introduce mount option rescue=ignorebadroots
2020-12-08 15:53:41 +01:00
block-rsv.h
btrfs: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
btrfs_inode.h
btrfs: skip unnecessary searches for xattrs when logging an inode
2020-12-08 15:54:12 +01:00
check-integrity.c
btrfs: check integrity: remove local copy of csum_size
2020-12-08 15:54:01 +01:00
check-integrity.h
btrfs: remove btrfsic_submit_bh()
2020-03-23 17:01:39 +01:00
compression.c
btrfs: remove unnecessary local variables for checksum size
2020-12-08 15:54:00 +01:00
compression.h
btrfs: compression: move declarations to header
2020-10-07 12:06:55 +02:00
ctree.c
btrfs: simplify return values in setup_nodes_for_search
2020-12-08 15:54:13 +01:00
ctree.h
btrfs: introduce max_zone_append_size
2020-12-09 19:16:04 +01:00
delalloc-space.c
btrfs: add btrfs_reserve_data_bytes and use it
2020-10-07 12:06:52 +02:00
delalloc-space.h
btrfs: make btrfs_delalloc_reserve_space take btrfs_inode
2020-07-27 12:55:36 +02:00
delayed-inode.c
btrfs: make btrfs_delayed_update_inode take btrfs_inode
2020-12-08 15:54:10 +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: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
delayed-ref.h
btrfs: migrate the delayed refs rsv code
2019-07-04 17:26:17 +02:00
dev-replace.c
btrfs: check and enable ZONED mode
2020-12-09 19:16:03 +01:00
dev-replace.h
btrfs: add __pure attribute to functions
2019-11-18 12:46:52 +01:00
dir-item.c
btrfs: locking: rip out path->leave_spinning
2020-12-08 15:54:02 +01:00
discard.c
btrfs: don't miss async discards after scheduled work override
2020-12-08 15:54:05 +01:00
discard.h
btrfs: cleanup btrfs_discard_update_discardable usage
2020-12-08 15:54:02 +01:00
disk-io.c
btrfs: check and enable ZONED mode
2020-12-09 19:16:03 +01:00
disk-io.h
btrfs: remove unused parameter phy_offset from btrfs_validate_metadata_buffer
2020-12-08 15:54:14 +01:00
export.c
btrfs: locking: rip out path->leave_spinning
2020-12-08 15:54:02 +01:00
export.h
btrfs: export helpers for subvolume name/id resolution
2020-03-23 17:01:42 +01:00
extent_io.c
btrfs: use detach_page_private() in alloc_extent_buffer()
2020-12-08 15:54:14 +01:00
extent_io.h
btrfs: use fixed width int type for extent_state::state
2020-12-08 15:54:13 +01:00
extent_map.c
Btrfs: fix race between using extent maps and merging them
2020-02-12 17:16:46 +01:00
extent_map.h
btrfs: remove extent_map::bdev
2019-11-18 23:43:44 +01:00
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: set the lockdep class for extent buffers on creation
2020-12-08 15:54:07 +01:00
file-item.c
btrfs: use nodesize to determine if we need readahead in btrfs_lookup_bio_sums
2020-12-08 15:54:14 +01:00
file.c
btrfs: disable fallocate in ZONED mode
2020-12-09 19:16:04 +01:00
free-space-cache.c
btrfs: make btrfs_update_inode take btrfs_inode
2020-12-08 15:54:11 +01:00
free-space-cache.h
btrfs: load free space cache into a temporary ctl
2020-12-08 15:54:03 +01:00
free-space-tree.c
btrfs: locking: rip out path->leave_spinning
2020-12-08 15:54:02 +01:00
free-space-tree.h
btrfs: rename btrfs_block_group_cache
2019-11-18 17:51:51 +01:00
inode-item.c
btrfs: locking: rip out path->leave_spinning
2020-12-08 15:54:02 +01:00
inode-map.c
btrfs: make btrfs_update_inode take btrfs_inode
2020-12-08 15:54:11 +01:00
inode-map.h
…
inode.c
btrfs: remove err variable from btrfs_delete_subvolume
2020-12-08 15:54:15 +01:00
ioctl.c
btrfs: disallow NODATACOW in ZONED mode
2020-12-09 19:16:04 +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
btrfs: compression: inline free_workspace
2019-11-18 12:46:59 +01:00
Makefile
btrfs: get zone information of zoned block devices
2020-12-09 19:15:57 +01:00
misc.h
btrfs: rename tree_entry to rb_simple_node and export it
2020-05-25 11:25:19 +02:00
ordered-data.c
btrfs: switch cached fs_info::csum_size from u16 to u32
2020-12-08 15:53:59 +01:00
ordered-data.h
btrfs: remove unnecessary local variables for checksum size
2020-12-08 15:54:00 +01:00
orphan.c
…
print-tree.c
btrfs: pass root owner to read_tree_block
2020-12-08 15:54:07 +01:00
print-tree.h
btrfs: pretty print leaked root name
2020-10-07 12:12:20 +02:00
props.c
btrfs: simplify iget helpers
2020-05-25 11:25:37 +02:00
props.h
btrfs: delete unused function btrfs_set_prop_trans
2019-04-29 19:02:54 +02:00
qgroup.c
btrfs: pass root owner to read_tree_block
2020-12-08 15:54:07 +01:00
qgroup.h
btrfs: qgroup: export qgroups in sysfs
2020-07-27 12:55:37 +02:00
raid56.c
btrfs: raid56: remove out label in __raid56_parity_recover
2020-07-27 12:55:44 +02:00
raid56.h
btrfs: constify map parameter for nr_parity_stripes and nr_data_stripes
2019-07-01 13:34:58 +02:00
rcu-string.h
btrfs: rcu-string: Replace zero-length array with flexible-array member
2020-03-23 17:01:53 +01:00
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: use btrfs_read_node_slot in walk_down_tree
2020-12-08 15:54:06 +01:00
ref-verify.h
btrfs: ref-verify: Use btrfs_ref to refactor btrfs_ref_tree_mod()
2019-04-29 19:02:49 +02:00
reflink.c
btrfs: make btrfs_cont_expand take btrfs_inode
2020-12-08 15:54:12 +01:00
reflink.h
Btrfs: move all reflink implementation code into its own file
2020-03-23 17:01:54 +01:00
relocation.c
btrfs: remove err variable from do_relocation
2020-12-08 15:54:15 +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: scrub: remove the anonymous structure from scrub_page
2020-12-08 15:54:14 +01:00
send.c
btrfs: send: use helpers to access root_item::ctransid
2020-12-08 15:53:51 +01:00
send.h
btrfs: send: avoid copying file data
2020-10-07 12:13:17 +02:00
space-info.c
btrfs: kill the RCU protection for fs_info->space_info
2020-10-07 12:13:19 +02:00
space-info.h
btrfs: add btrfs_reserve_data_bytes and use it
2020-10-07 12:06:52 +02:00
struct-funcs.c
btrfs: use unaligned helpers for stack and header set/get helpers
2020-10-07 12:13:23 +02:00
super.c
btrfs: disallow space_cache in ZONED mode
2020-12-09 19:16:04 +01:00
sysfs.c
btrfs: introduce ZONED feature flag
2020-12-08 15:54:16 +01:00
sysfs.h
btrfs: split and refactor btrfs_sysfs_remove_devices_dir
2020-10-07 12:12:21 +02:00
transaction.c
btrfs: return bool from btrfs_should_end_transaction
2020-12-08 15:54:16 +01:00
transaction.h
btrfs: return bool from btrfs_should_end_transaction
2020-12-08 15:54:16 +01:00
tree-checker.c
btrfs: tree-checker: annotate all error branches as unlikely
2020-12-08 15:54:15 +01:00
tree-checker.h
btrfs: get fs_info from eb in btrfs_check_chunk_valid
2019-04-29 19:02:39 +02:00
tree-defrag.c
btrfs: locking: remove all the blocking helpers
2020-12-08 15:54:01 +01:00
tree-log.c
btrfs: stop incrementing log batch when joining log transaction
2020-12-08 15:54:12 +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: check and enable ZONED mode
2020-12-09 19:16:03 +01:00
volumes.h
btrfs: get zone information of zoned block devices
2020-12-09 19:15:57 +01:00
xattr.c
btrfs: skip unnecessary searches for xattrs when logging an inode
2020-12-08 15:54:12 +01:00
xattr.h
btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter
2019-04-29 19:02:44 +02:00
zlib.c
btrfs: use larger zlib buffer for s390 hardware compression
2020-01-31 10:30:40 -08:00
zoned.c
btrfs: disallow NODATACOW in ZONED mode
2020-12-09 19:16:04 +01:00
zoned.h
btrfs: disallow space_cache in ZONED mode
2020-12-09 19:16:04 +01:00
zstd.c
btrfs: compression: inline free_workspace
2019-11-18 12:46:59 +01:00