summaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2020-01-28 14:53:31 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-01-28 14:53:31 -0800
commit81a046b18b331ed6192e6fd9ff6d12a1f18058cf (patch)
tree1d20ebe76c82cc2be603a0a4836d08ba9ec63ee0 /include
parent511fdb78442229ac11057b4a55c3f03c253c062f (diff)
parent4e19443da1941050b346f8fc4c368aa68413bc88 (diff)
Merge tag 'for-5.6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba: "Features, highlights: - async discard - "mount -o discard=async" to enable it - freed extents are not discarded immediatelly, but grouped together and trimmed later, with IO rate limiting - the "sync" mode submits short extents that could have been ignored completely by the device, for SATA prior to 3.1 the requests are unqueued and have a big impact on performance - the actual discard IO requests have been moved out of transaction commit to a worker thread, improving commit latency - IO rate and request size can be tuned by sysfs files, for now enabled only with CONFIG_BTRFS_DEBUG as we might need to add/delete the files and don't have a stable-ish ABI for general use, defaults are conservative - export device state info in sysfs, eg. missing, writeable - no discard of extents known to be untouched on disk (eg. after reservation) - device stats reset is logged with process name and PID that called the ioctl Fixes: - fix missing hole after hole punching and fsync when using NO_HOLES - writeback: range cyclic mode could miss some dirty pages and lead to OOM - two more corner cases for metadata_uuid change after power loss during the change - fix infinite loop during fsync after mix of rename operations Core changes: - qgroup assign returns ENOTCONN when quotas not enabled, used to return EINVAL that was confusing - device closing does not need to allocate memory anymore - snapshot aware code got removed, disabled for years due to performance problems, reimplmentation will allow to select wheter defrag breaks or does not break COW on shared extents - tree-checker: - check leaf chunk item size, cross check against number of stripes - verify location keys for DIR_ITEM, DIR_INDEX and XATTR items - new self test for physical -> logical mapping code, used for super block range exclusion - assertion helpers/macros updated to avoid objtool "unreachable code" reports on older compilers or config option combinations" * tag 'for-5.6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (84 commits) btrfs: free block groups after free'ing fs trees btrfs: Fix split-brain handling when changing FSID to metadata uuid btrfs: Handle another split brain scenario with metadata uuid feature btrfs: Factor out metadata_uuid code from find_fsid. btrfs: Call find_fsid from find_fsid_inprogress Btrfs: fix infinite loop during fsync after rename operations btrfs: set trans->drity in btrfs_commit_transaction btrfs: drop log root for dropped roots btrfs: sysfs, add devid/dev_state kobject and device attributes btrfs: Refactor btrfs_rmap_block to improve readability btrfs: Add self-tests for btrfs_rmap_block btrfs: selftests: Add support for dummy devices btrfs: Move and unexport btrfs_rmap_block btrfs: separate definition of assertion failure handlers btrfs: device stats, log when stats are zeroed btrfs: fix improper setting of scanned for range cyclic write cache pages btrfs: safely advance counter when looking up bio csums btrfs: remove unused member btrfs_device::work btrfs: remove unnecessary wrapper get_alloc_profile btrfs: add correction to handle -1 edge case in async discard ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/bitmap.h35
-rw-r--r--include/trace/events/btrfs.h6
2 files changed, 38 insertions, 3 deletions
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index ff335b22f23c..cb63feb3cfbe 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -456,6 +456,41 @@ static inline int bitmap_parse(const char *buf, unsigned int buflen,
return __bitmap_parse(buf, buflen, 0, maskp, nmaskbits);
}
+static inline void bitmap_next_clear_region(unsigned long *bitmap,
+ unsigned int *rs, unsigned int *re,
+ unsigned int end)
+{
+ *rs = find_next_zero_bit(bitmap, end, *rs);
+ *re = find_next_bit(bitmap, end, *rs + 1);
+}
+
+static inline void bitmap_next_set_region(unsigned long *bitmap,
+ unsigned int *rs, unsigned int *re,
+ unsigned int end)
+{
+ *rs = find_next_bit(bitmap, end, *rs);
+ *re = find_next_zero_bit(bitmap, end, *rs + 1);
+}
+
+/*
+ * Bitmap region iterators. Iterates over the bitmap between [@start, @end).
+ * @rs and @re should be integer variables and will be set to start and end
+ * index of the current clear or set region.
+ */
+#define bitmap_for_each_clear_region(bitmap, rs, re, start, end) \
+ for ((rs) = (start), \
+ bitmap_next_clear_region((bitmap), &(rs), &(re), (end)); \
+ (rs) < (re); \
+ (rs) = (re) + 1, \
+ bitmap_next_clear_region((bitmap), &(rs), &(re), (end)))
+
+#define bitmap_for_each_set_region(bitmap, rs, re, start, end) \
+ for ((rs) = (start), \
+ bitmap_next_set_region((bitmap), &(rs), &(re), (end)); \
+ (rs) < (re); \
+ (rs) = (re) + 1, \
+ bitmap_next_set_region((bitmap), &(rs), &(re), (end)))
+
/**
* BITMAP_FROM_U64() - Represent u64 value in the format suitable for bitmap.
* @n: u64 value
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 620bf1b38fba..17088a112ed0 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -496,9 +496,9 @@ DECLARE_EVENT_CLASS(btrfs__ordered_extent,
TP_fast_assign_btrfs(btrfs_sb(inode->i_sb),
__entry->ino = btrfs_ino(BTRFS_I(inode));
__entry->file_offset = ordered->file_offset;
- __entry->start = ordered->start;
- __entry->len = ordered->len;
- __entry->disk_len = ordered->disk_len;
+ __entry->start = ordered->disk_bytenr;
+ __entry->len = ordered->num_bytes;
+ __entry->disk_len = ordered->disk_num_bytes;
__entry->bytes_left = ordered->bytes_left;
__entry->flags = ordered->flags;
__entry->compress_type = ordered->compress_type;