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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-02 19:59:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-02 19:59:25 -0700
commitf3cdc8ae116e27d84e1f33c7a2995960cebb73ac (patch)
treedb3dbbbbf82b76590f601b5caee5de3bef151c4b /include
parent8eeae5bae1239c030ba0b34cac97ebd5e7ec1886 (diff)
parent2166e5edce9ac1edf3b113d6091ef72fcac2d6c4 (diff)
downloadlinux-f3cdc8ae116e27d84e1f33c7a2995960cebb73ac.tar.bz2
Merge tag 'for-5.8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba: "Highlights: - speedup dead root detection during orphan cleanup, eg. when there are many deleted subvolumes waiting to be cleaned, the trees are now looked up in radix tree instead of a O(N^2) search - snapshot creation with inherited qgroup will mark the qgroup inconsistent, requires a rescan - send will emit file capabilities after chown, this produces a stream that does not need postprocessing to set the capabilities again - direct io ported to iomap infrastructure, cleaned up and simplified code, notably removing last use of struct buffer_head in btrfs code Core changes: - factor out backreference iteration, to be used by ordinary backreferences and relocation code - improved global block reserve utilization * better logic to serialize requests * increased maximum available for unlink * improved handling on large pages (64K) - direct io cleanups and fixes * simplify layering, where cloned bios were unnecessarily created for some cases * error handling fixes (submit, endio) * remove repair worker thread, used to avoid deadlocks during repair - refactored block group reading code, preparatory work for new type of block group storage that should improve mount time on large filesystems Cleanups: - cleaned up (and slightly sped up) set/get helpers for metadata data structure members - root bit REF_COWS got renamed to SHAREABLE to reflect the that the blocks of the tree get shared either among subvolumes or with the relocation trees Fixes: - when subvolume deletion fails due to ENOSPC, the filesystem is not turned read-only - device scan deals with devices from other filesystems that changed ownership due to overwrite (mkfs) - fix a race between scrub and block group removal/allocation - fix long standing bug of a runaway balance operation, printing the same line to the syslog, caused by a stale status bit on a reloc tree that prevented progress - fix corrupt log due to concurrent fsync of inodes with shared extents - fix space underflow for NODATACOW and buffered writes when it for some reason needs to fallback to COW mode" * tag 'for-5.8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (133 commits) btrfs: fix space_info bytes_may_use underflow during space cache writeout btrfs: fix space_info bytes_may_use underflow after nocow buffered write btrfs: fix wrong file range cleanup after an error filling dealloc range btrfs: remove redundant local variable in read_block_for_search btrfs: open code key_search btrfs: split btrfs_direct_IO to read and write part btrfs: remove BTRFS_INODE_READDIO_NEED_LOCK fs: remove dio_end_io() btrfs: switch to iomap_dio_rw() for dio iomap: remove lockdep_assert_held() iomap: add a filesystem hook for direct I/O bio submission fs: export generic_file_buffered_read() btrfs: turn space cache writeout failure messages into debug messages btrfs: include error on messages about failure to write space/inode caches btrfs: remove useless 'fail_unlock' label from btrfs_csum_file_blocks() btrfs: do not ignore error from btrfs_next_leaf() when inserting checksums btrfs: make checksum item extension more efficient btrfs: fix corrupt log due to concurrent fsync of inodes with shared extents btrfs: unexport btrfs_compress_set_level() btrfs: simplify iget helpers ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/bio.h8
-rw-r--r--include/linux/fs.h4
-rw-r--r--include/linux/iomap.h2
-rw-r--r--include/trace/events/btrfs.h1
-rw-r--r--include/uapi/linux/btrfs_tree.h9
5 files changed, 13 insertions, 11 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 683ff5fd8871..91676d4b2dfe 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -169,6 +169,14 @@ static inline void bio_advance_iter(const struct bio *bio,
#define bio_for_each_bvec(bvl, bio, iter) \
__bio_for_each_bvec(bvl, bio, iter, (bio)->bi_iter)
+/*
+ * Iterate over all multi-page bvecs. Drivers shouldn't use this version for the
+ * same reasons as bio_for_each_segment_all().
+ */
+#define bio_for_each_bvec_all(bvl, bio, i) \
+ for (i = 0, bvl = bio_first_bvec_all(bio); \
+ i < (bio)->bi_vcnt; i++, bvl++) \
+
#define bio_iter_last(bvec, iter) ((iter).bi_size == (bvec).bv_len)
static inline unsigned bio_segments(struct bio *bio)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index f3e167ffbb74..cffc3619eed5 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3148,6 +3148,8 @@ extern int generic_file_rw_checks(struct file *file_in, struct file *file_out);
extern int generic_copy_file_checks(struct file *file_in, loff_t pos_in,
struct file *file_out, loff_t pos_out,
size_t *count, unsigned int flags);
+extern ssize_t generic_file_buffered_read(struct kiocb *iocb,
+ struct iov_iter *to, ssize_t already_read);
extern ssize_t generic_file_read_iter(struct kiocb *, struct iov_iter *);
extern ssize_t __generic_file_write_iter(struct kiocb *, struct iov_iter *);
extern ssize_t generic_file_write_iter(struct kiocb *, struct iov_iter *);
@@ -3209,8 +3211,6 @@ enum {
DIO_SKIP_HOLES = 0x02,
};
-void dio_end_io(struct bio *bio);
-
ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
struct block_device *bdev, struct iov_iter *iter,
get_block_t get_block,
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index bc20bd04c2a2..a5c219c29b10 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -251,6 +251,8 @@ int iomap_writepages(struct address_space *mapping,
struct iomap_dio_ops {
int (*end_io)(struct kiocb *iocb, ssize_t size, int error,
unsigned flags);
+ blk_qc_t (*submit_io)(struct inode *inode, struct iomap *iomap,
+ struct bio *bio, loff_t file_offset);
};
ssize_t iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index bcbc763b8814..360b0f9d2220 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -89,6 +89,7 @@ TRACE_DEFINE_ENUM(COMMIT_TRANS);
{ IO_TREE_TRANS_DIRTY_PAGES, "TRANS_DIRTY_PAGES" }, \
{ IO_TREE_ROOT_DIRTY_LOG_PAGES, "ROOT_DIRTY_LOG_PAGES" }, \
{ IO_TREE_INODE_FILE_EXTENT, "INODE_FILE_EXTENT" }, \
+ { IO_TREE_LOG_CSUM_RANGE, "LOG_CSUM_RANGE" }, \
{ IO_TREE_SELFTEST, "SELFTEST" })
#define BTRFS_GROUP_FLAGS \
diff --git a/include/uapi/linux/btrfs_tree.h b/include/uapi/linux/btrfs_tree.h
index 8e322e2c7e78..a3f3975df0de 100644
--- a/include/uapi/linux/btrfs_tree.h
+++ b/include/uapi/linux/btrfs_tree.h
@@ -519,15 +519,6 @@ struct btrfs_extent_inline_ref {
__le64 offset;
} __attribute__ ((__packed__));
-/* old style backrefs item */
-struct btrfs_extent_ref_v0 {
- __le64 root;
- __le64 generation;
- __le64 objectid;
- __le32 count;
-} __attribute__ ((__packed__));
-
-
/* dev extents record free space on individual devices. The owner
* field points back to the chunk allocation mapping tree that allocated
* the extent. The chunk tree uuid field is a way to double check the owner