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linux/fs/btrfs
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David Sterba da658b5708 btrfs: sysfs: export dev stats in devinfo directory 
The device stats can be read by ioctl, wrapped by command 'btrfs device
stats'. Provide another source where to read the information in
/sys/fs/btrfs/FSID/devinfo/DEVID/error_stats . The format is a list of
'key value' pairs one per line, which is common in other stat files.
The names are the same as used in other device stat outputs.

The stats are all in one file as it's the snapshot of all available
stats. The 'one value per file' format is not very suitable here. The
stats should be valid right after the stats item is read from disk,
shortly after initializing the device.

In case the stats are not yet valid, print just 'invalid' as the file
contents.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2021-06-22 14:11:57 +02:00
..
tests btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
acl.c fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
async-thread.c
async-thread.h
backref.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
backref.h btrfs: add asserts for deleting backref cache nodes 2021-02-08 22:58:56 +01:00
block-group.c btrfs: make free space cache size consistent across different PAGE_SIZE 2021-06-21 15:19:08 +02:00
block-group.h btrfs: zoned: automatically reclaim zones 2021-04-20 20:46:31 +02:00
block-rsv.c btrfs: introduce mount option rescue=ignorebadroots 2020-12-08 15:53:41 +01:00
block-rsv.h
btrfs_inode.h btrfs: remove stale comment and logic from btrfs_inode_in_log() 2021-04-19 17:25:16 +02:00
check-integrity.c btrfs: integrity-checker: convert block context kmap's to kmap_local_page 2021-04-19 17:25:16 +02:00
check-integrity.h
compression.c btrfs: remove a stale comment for btrfs_decompress_bio() 2021-06-22 14:11:57 +02:00
compression.h btrfs: optimize variables size in btrfs_submit_compressed_write 2021-06-21 15:19:07 +02:00
ctree.c btrfs: always abort the transaction if we abort a trans handle 2021-06-21 15:19:06 +02:00
ctree.h btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
delalloc-space.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
delalloc-space.h
delayed-inode.c btrfs: remove total_data_size variable in btrfs_batch_insert_items() 2021-06-21 15:19:11 +02:00
delayed-inode.h btrfs: make btrfs_delayed_update_inode take btrfs_inode 2020-12-08 15:54:10 +01:00
delayed-ref.c btrfs: update debug message when checking seq number of a delayed ref 2021-04-19 17:25:17 +02:00
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: fix typos in comments 2021-06-22 14:11:57 +02:00
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: fix typos in comments 2021-06-22 14:11:57 +02:00
discard.h btrfs: cleanup btrfs_discard_update_discardable usage 2020-12-08 15:54:02 +01:00
disk-io.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
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-tree.h btrfs: use fixed width int type for extent_state::state 2020-12-08 15:54:13 +01:00
extent-tree.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
extent_io.c btrfs: subpage: fix a rare race between metadata endio and eb freeing 2021-06-21 15:19:10 +02:00
extent_io.h btrfs: rename PagePrivate2 to PageOrdered inside btrfs 2021-06-21 15:19:09 +02:00
extent_map.c btrfs: fix parameter description of btrfs_add_extent_mapping 2021-02-08 22:58:53 +01:00
extent_map.h
file-item.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
file.c btrfs: eliminate insert label in add_falloc_range 2021-06-21 15:19:10 +02:00
free-space-cache.c btrfs: don't set the full sync flag when truncation does not touch extents 2021-06-21 15:19:05 +02:00
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: fix typos in comments 2021-06-22 14:11:57 +02:00
ioctl.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
Kconfig btrfs: disable build on platforms having page size 256K 2021-06-22 14:11:57 +02:00
locking.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
locking.h btrfs: remove the recurse parameter from __btrfs_tree_read_lock 2020-12-08 15:54:09 +01:00
lzo.c btrfs: convert kmap to kmap_local_page, simple cases 2021-04-19 17:25:16 +02:00
Makefile btrfs: move the tree mod log code into its own file 2021-04-19 17:25:16 +02:00
misc.h
ordered-data.c btrfs: make page Ordered bit to be subpage compatible 2021-06-21 15:19:10 +02:00
ordered-data.h btrfs: introduce btrfs_lookup_first_ordered_range() 2021-06-21 15:19:08 +02:00
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 btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
props.h
qgroup.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
qgroup.h btrfs: export and rename qgroup_reserve_meta 2021-03-02 16:58:30 +01:00
raid56.c CFI on arm64 series for v5.13-rc1 2021-04-27 10:16:46 -07:00
raid56.h
rcu-string.h
reada.c btrfs: subpage: make readahead work properly 2021-03-16 11:06:21 +01:00
ref-verify.c btrfs: ref-verify: use 'inline void' keyword ordering 2021-03-02 16:55:40 +01:00
ref-verify.h
reflink.c btrfs: reflink: make copy_inline_to_page() to be subpage compatible 2021-06-21 15:19:10 +02:00
reflink.h
relocation.c btrfs: add cancellable chunk relocation support 2021-06-21 15:19:07 +02:00
root-tree.c btrfs: qgroup: fix qgroup meta rsv leak for subvolume operations 2020-10-07 12:12:13 +02:00
scrub.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
send.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
send.h btrfs: send: avoid copying file data 2020-10-07 12:13:17 +02:00
space-info.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
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: subpage: fix a rare race between metadata endio and eb freeing 2021-06-21 15:19:10 +02:00
subpage.h btrfs: subpage: fix a rare race between metadata endio and eb freeing 2021-06-21 15:19:10 +02:00
super.c btrfs: always abort the transaction if we abort a trans handle 2021-06-21 15:19:06 +02:00
sysfs.c btrfs: sysfs: export dev stats in devinfo directory 2021-06-22 14:11:57 +02:00
sysfs.h btrfs: split and refactor btrfs_sysfs_remove_devices_dir 2020-10-07 12:12:21 +02:00
transaction.c btrfs: inline wait_current_trans_commit_start in its caller 2021-06-21 15:19:11 +02:00
transaction.h btrfs: sink wait_for_unblock parameter to async commit 2021-06-21 15:19:11 +02:00
tree-checker.c btrfs: tree-checker: check for BTRFS_BLOCK_FLAG_FULL_BACKREF being set improperly 2021-04-19 17:25:21 +02:00
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: avoid unnecessary logging of xattrs during fast fsyncs 2021-06-21 15:19:07 +02:00
tree-log.h btrfs: make fast fsyncs wait only for writeback 2020-10-07 12:06:56 +02:00
tree-mod-log.c btrfs: fix race when picking most recent mod log operation for an old root 2021-04-20 19:27:17 +02:00
tree-mod-log.h btrfs: add and use helper to get lowest sequence number for the tree mod log 2021-04-19 17:25:17 +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: fix typos in comments 2021-06-22 14:11:57 +02:00
volumes.h btrfs: remove the unused parameter @len for btrfs_bio_fits_in_stripe() 2021-06-21 15:19:08 +02:00
xattr.c for-5.12-rc1-tag 2021-03-05 12:21:14 -08:00
xattr.h
zlib.c btrfs: use memzero_page() instead of open coded kmap pattern 2021-05-05 11:27:27 -07:00
zoned.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
zoned.h btrfs: zoned: factor out zoned device lookup 2021-06-21 15:19:05 +02:00
zstd.c btrfs: use memzero_page() instead of open coded kmap pattern 2021-05-05 11:27:27 -07:00