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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-14 13:35:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-14 13:35:29 -0800
commit5cea7647e64657138138a3794ae172ee0fc175da (patch)
tree38adc54cba508db574e190e9d9aa601c36a8fd7c /fs/btrfs/sysfs.h
parent808eb24e0e0939b487bf90e3888a9636f1c83acb (diff)
parentd28e649a5c58b779b303c252c66ee84a0f2c3b32 (diff)
downloadlinux-5cea7647e64657138138a3794ae172ee0fc175da.tar.bz2
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba: "There are some new user features and the usual load of invisible enhancements or cleanups. New features: - extend mount options to specify zlib compression level, -o compress=zlib:9 - v2 of ioctl "extent to inode mapping", addressing a usecase where we want to retrieve more but inaccurate results and do the postprocessing in userspace, aiding defragmentation or deduplication tools - populate compression heuristics logic, do data sampling and try to guess compressibility by: looking for repeated patterns, counting unique byte values and distribution, calculating Shannon entropy; this will need more benchmarking and possibly fine tuning, but the base should be good enough - enable indexing for btrfs as lower filesystem in overlayfs - speedup page cache readahead during send on large files Internal enhancements: - more sanity checks of b-tree items when reading them from disk - more EINVAL/EUCLEAN fixups, missing BLK_STS_* conversion, other errno or error handling fixes - remove some homegrown IO-related logic, that's been obsoleted by core block layer changes (batching, plug/unplug, own counters) - add ref-verify, optional debugging feature to verify extent reference accounting - simplify code handling outstanding extents, make it more clear where and how the accounting is done - make delalloc reservations per-inode, simplify the code and make the logic more straightforward - extensive cleanup of delayed refs code Notable fixes: - fix send ioctl on 32bit with 64bit kernel" * 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (102 commits) btrfs: Fix bug for misused dev_t when lookup in dev state hash table. Btrfs: heuristic: add Shannon entropy calculation Btrfs: heuristic: add byte core set calculation Btrfs: heuristic: add byte set calculation Btrfs: heuristic: add detection of repeated data patterns Btrfs: heuristic: implement sampling logic Btrfs: heuristic: add bucket and sample counters and other defines Btrfs: compression: separate heuristic/compression workspaces btrfs: move btrfs_truncate_block out of trans handle btrfs: don't call btrfs_start_delalloc_roots in flushoncommit btrfs: track refs in a rb_tree instead of a list btrfs: add a comp_refs() helper btrfs: switch args for comp_*_refs btrfs: make the delalloc block rsv per inode btrfs: add tracepoints for outstanding extents mods Btrfs: rework outstanding_extents btrfs: increase output size for LOGICAL_INO_V2 ioctl btrfs: add a flags argument to LOGICAL_INO and call it LOGICAL_INO_V2 btrfs: add a flag to iterate_inodes_from_logical to find all extent refs for uncompressed extents btrfs: send: remove unused code ...
Diffstat (limited to 'fs/btrfs/sysfs.h')
-rw-r--r--fs/btrfs/sysfs.h26
1 files changed, 11 insertions, 15 deletions
diff --git a/fs/btrfs/sysfs.h b/fs/btrfs/sysfs.h
index 4cb908305e5d..80457f31c29f 100644
--- a/fs/btrfs/sysfs.h
+++ b/fs/btrfs/sysfs.h
@@ -21,21 +21,16 @@ enum btrfs_feature_set {
.store = _store, \
}
-#define BTRFS_ATTR_RW(_name, _show, _store) \
- static struct kobj_attribute btrfs_attr_##_name = \
+#define BTRFS_ATTR_RW(_prefix, _name, _show, _store) \
+ static struct kobj_attribute btrfs_attr_##_prefix##_##_name = \
__INIT_KOBJ_ATTR(_name, 0644, _show, _store)
-#define BTRFS_ATTR(_name, _show) \
- static struct kobj_attribute btrfs_attr_##_name = \
+#define BTRFS_ATTR(_prefix, _name, _show) \
+ static struct kobj_attribute btrfs_attr_##_prefix##_##_name = \
__INIT_KOBJ_ATTR(_name, 0444, _show, NULL)
-#define BTRFS_ATTR_PTR(_name) (&btrfs_attr_##_name.attr)
-
-#define BTRFS_RAID_ATTR(_name, _show) \
- static struct kobj_attribute btrfs_raid_attr_##_name = \
- __INIT_KOBJ_ATTR(_name, 0444, _show, NULL)
-
-#define BTRFS_RAID_ATTR_PTR(_name) (&btrfs_raid_attr_##_name.attr)
+#define BTRFS_ATTR_PTR(_prefix, _name) \
+ (&btrfs_attr_##_prefix##_##_name.attr)
struct btrfs_feature_attr {
@@ -44,15 +39,16 @@ struct btrfs_feature_attr {
u64 feature_bit;
};
-#define BTRFS_FEAT_ATTR(_name, _feature_set, _prefix, _feature_bit) \
-static struct btrfs_feature_attr btrfs_attr_##_name = { \
+#define BTRFS_FEAT_ATTR(_name, _feature_set, _feature_prefix, _feature_bit) \
+static struct btrfs_feature_attr btrfs_attr_features_##_name = { \
.kobj_attr = __INIT_KOBJ_ATTR(_name, S_IRUGO, \
btrfs_feature_attr_show, \
btrfs_feature_attr_store), \
.feature_set = _feature_set, \
- .feature_bit = _prefix ##_## _feature_bit, \
+ .feature_bit = _feature_prefix ##_## _feature_bit, \
}
-#define BTRFS_FEAT_ATTR_PTR(_name) (&btrfs_attr_##_name.kobj_attr.attr)
+#define BTRFS_FEAT_ATTR_PTR(_name) \
+ (&btrfs_attr_features_##_name.kobj_attr.attr)
#define BTRFS_FEAT_ATTR_COMPAT(name, feature) \
BTRFS_FEAT_ATTR(name, FEAT_COMPAT, BTRFS_FEATURE_COMPAT, feature)