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author | Jens Axboe <axboe@kernel.dk> | 2017-06-12 08:30:13 -0600 |
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committer | Jens Axboe <axboe@kernel.dk> | 2017-06-12 08:30:13 -0600 |
commit | 8f66439eec46d652255b9351abebb540ee5b2fd9 (patch) | |
tree | 94f4a41dc343cf769cd92f1f7711e9ce8ad43728 /fs/btrfs | |
parent | 22ec656bcc3f38207ad5476ebad1e5005fb0f1ff (diff) | |
parent | 32c1431eea4881a6b17bd7c639315010aeefa452 (diff) | |
download | linux-8f66439eec46d652255b9351abebb540ee5b2fd9.tar.gz linux-8f66439eec46d652255b9351abebb540ee5b2fd9.tar.bz2 linux-8f66439eec46d652255b9351abebb540ee5b2fd9.zip |
Merge tag 'v4.12-rc5' into for-4.13/block
We've already got a few conflicts and upcoming work depends on some of the
changes that have gone into mainline as regression fixes for this series.
Pull in 4.12-rc5 to resolve these conflicts and make it easier on down stream
trees to continue working on 4.13 changes.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/btrfs')
-rw-r--r-- | fs/btrfs/ctree.h | 4 | ||||
-rw-r--r-- | fs/btrfs/dir-item.c | 2 | ||||
-rw-r--r-- | fs/btrfs/disk-io.c | 10 | ||||
-rw-r--r-- | fs/btrfs/extent-tree.c | 7 | ||||
-rw-r--r-- | fs/btrfs/extent_io.c | 126 | ||||
-rw-r--r-- | fs/btrfs/inode.c | 6 |
6 files changed, 139 insertions, 16 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index d2da0a52d560..a0d0c79d95ed 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2563,7 +2563,7 @@ u64 btrfs_csum_bytes_to_leaves(struct btrfs_fs_info *fs_info, u64 csum_bytes); static inline u64 btrfs_calc_trans_metadata_size(struct btrfs_fs_info *fs_info, unsigned num_items) { - return fs_info->nodesize * BTRFS_MAX_LEVEL * 2 * num_items; + return (u64)fs_info->nodesize * BTRFS_MAX_LEVEL * 2 * num_items; } /* @@ -2573,7 +2573,7 @@ static inline u64 btrfs_calc_trans_metadata_size(struct btrfs_fs_info *fs_info, static inline u64 btrfs_calc_trunc_metadata_size(struct btrfs_fs_info *fs_info, unsigned num_items) { - return fs_info->nodesize * BTRFS_MAX_LEVEL * num_items; + return (u64)fs_info->nodesize * BTRFS_MAX_LEVEL * num_items; } int btrfs_should_throttle_delayed_refs(struct btrfs_trans_handle *trans, diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c index 60a750678a82..c24d615e3d7f 100644 --- a/fs/btrfs/dir-item.c +++ b/fs/btrfs/dir-item.c @@ -468,7 +468,7 @@ int verify_dir_item(struct btrfs_fs_info *fs_info, if (btrfs_dir_name_len(leaf, dir_item) > namelen) { btrfs_crit(fs_info, "invalid dir item name len: %u", - (unsigned)btrfs_dir_data_len(leaf, dir_item)); + (unsigned)btrfs_dir_name_len(leaf, dir_item)); return 1; } diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 46accc75ad5a..6036d15b47b8 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3466,10 +3466,12 @@ static int write_dev_supers(struct btrfs_device *device, * we fua the first super. The others we allow * to go down lazy. */ - if (i == 0) - ret = btrfsic_submit_bh(REQ_OP_WRITE, REQ_FUA, bh); - else + if (i == 0) { + ret = btrfsic_submit_bh(REQ_OP_WRITE, + REQ_SYNC | REQ_FUA, bh); + } else { ret = btrfsic_submit_bh(REQ_OP_WRITE, REQ_SYNC, bh); + } if (ret) errors++; } @@ -3534,7 +3536,7 @@ static blk_status_t write_dev_flush(struct btrfs_device *device, int wait) bio->bi_end_io = btrfs_end_empty_barrier; bio->bi_bdev = device->bdev; - bio->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH; + bio->bi_opf = REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH; init_completion(&device->flush_wait); bio->bi_private = &device->flush_wait; device->flush_bio = bio; diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index e390451c72e6..33d979e9ea2a 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3993,6 +3993,7 @@ static int update_space_info(struct btrfs_fs_info *info, u64 flags, info->space_info_kobj, "%s", alloc_name(found->flags)); if (ret) { + percpu_counter_destroy(&found->total_bytes_pinned); kfree(found); return ret; } @@ -4844,7 +4845,7 @@ static int may_commit_transaction(struct btrfs_fs_info *fs_info, spin_unlock(&delayed_rsv->lock); commit: - trans = btrfs_join_transaction(fs_info->fs_root); + trans = btrfs_join_transaction(fs_info->extent_root); if (IS_ERR(trans)) return -ENOSPC; @@ -4862,7 +4863,7 @@ static int flush_space(struct btrfs_fs_info *fs_info, struct btrfs_space_info *space_info, u64 num_bytes, u64 orig_bytes, int state) { - struct btrfs_root *root = fs_info->fs_root; + struct btrfs_root *root = fs_info->extent_root; struct btrfs_trans_handle *trans; int nr; int ret = 0; @@ -5062,7 +5063,7 @@ static void priority_reclaim_metadata_space(struct btrfs_fs_info *fs_info, int flush_state = FLUSH_DELAYED_ITEMS_NR; spin_lock(&space_info->lock); - to_reclaim = btrfs_calc_reclaim_metadata_size(fs_info->fs_root, + to_reclaim = btrfs_calc_reclaim_metadata_size(fs_info->extent_root, space_info); if (!to_reclaim) { spin_unlock(&space_info->lock); diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 35cbb6ceb70d..8f66e55e7ba1 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2460,7 +2460,7 @@ void end_extent_writepage(struct page *page, int err, u64 start, u64 end) if (!uptodate) { ClearPageUptodate(page); SetPageError(page); - ret = ret < 0 ? ret : -EIO; + ret = err < 0 ? err : -EIO; mapping_set_error(page->mapping, ret); } } @@ -4380,6 +4380,123 @@ static struct extent_map *get_extent_skip_holes(struct inode *inode, return NULL; } +/* + * To cache previous fiemap extent + * + * Will be used for merging fiemap extent + */ +struct fiemap_cache { + u64 offset; + u64 phys; + u64 len; + u32 flags; + bool cached; +}; + +/* + * Helper to submit fiemap extent. + * + * Will try to merge current fiemap extent specified by @offset, @phys, + * @len and @flags with cached one. + * And only when we fails to merge, cached one will be submitted as + * fiemap extent. + * + * Return value is the same as fiemap_fill_next_extent(). + */ +static int emit_fiemap_extent(struct fiemap_extent_info *fieinfo, + struct fiemap_cache *cache, + u64 offset, u64 phys, u64 len, u32 flags) +{ + int ret = 0; + + if (!cache->cached) + goto assign; + + /* + * Sanity check, extent_fiemap() should have ensured that new + * fiemap extent won't overlap with cahced one. + * Not recoverable. + * + * NOTE: Physical address can overlap, due to compression + */ + if (cache->offset + cache->len > offset) { + WARN_ON(1); + return -EINVAL; + } + + /* + * Only merges fiemap extents if + * 1) Their logical addresses are continuous + * + * 2) Their physical addresses are continuous + * So truly compressed (physical size smaller than logical size) + * extents won't get merged with each other + * + * 3) Share same flags except FIEMAP_EXTENT_LAST + * So regular extent won't get merged with prealloc extent + */ + if (cache->offset + cache->len == offset && + cache->phys + cache->len == phys && + (cache->flags & ~FIEMAP_EXTENT_LAST) == + (flags & ~FIEMAP_EXTENT_LAST)) { + cache->len += len; + cache->flags |= flags; + goto try_submit_last; + } + + /* Not mergeable, need to submit cached one */ + ret = fiemap_fill_next_extent(fieinfo, cache->offset, cache->phys, + cache->len, cache->flags); + cache->cached = false; + if (ret) + return ret; +assign: + cache->cached = true; + cache->offset = offset; + cache->phys = phys; + cache->len = len; + cache->flags = flags; +try_submit_last: + if (cache->flags & FIEMAP_EXTENT_LAST) { + ret = fiemap_fill_next_extent(fieinfo, cache->offset, + cache->phys, cache->len, cache->flags); + cache->cached = false; + } + return ret; +} + +/* + * Sanity check for fiemap cache + * + * All fiemap cache should be submitted by emit_fiemap_extent() + * Iteration should be terminated either by last fiemap extent or + * fieinfo->fi_extents_max. + * So no cached fiemap should exist. + */ +static int check_fiemap_cache(struct btrfs_fs_info *fs_info, + struct fiemap_extent_info *fieinfo, + struct fiemap_cache *cache) +{ + int ret; + + if (!cache->cached) + return 0; + + /* Small and recoverbale problem, only to info developer */ +#ifdef CONFIG_BTRFS_DEBUG + WARN_ON(1); +#endif + btrfs_warn(fs_info, + "unhandled fiemap cache detected: offset=%llu phys=%llu len=%llu flags=0x%x", + cache->offset, cache->phys, cache->len, cache->flags); + ret = fiemap_fill_next_extent(fieinfo, cache->offset, cache->phys, + cache->len, cache->flags); + cache->cached = false; + if (ret > 0) + ret = 0; + return ret; +} + int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, __u64 start, __u64 len, get_extent_t *get_extent) { @@ -4397,6 +4514,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, struct extent_state *cached_state = NULL; struct btrfs_path *path; struct btrfs_root *root = BTRFS_I(inode)->root; + struct fiemap_cache cache = { 0 }; int end = 0; u64 em_start = 0; u64 em_len = 0; @@ -4576,8 +4694,8 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, flags |= FIEMAP_EXTENT_LAST; end = 1; } - ret = fiemap_fill_next_extent(fieinfo, em_start, disko, - em_len, flags); + ret = emit_fiemap_extent(fieinfo, &cache, em_start, disko, + em_len, flags); if (ret) { if (ret == 1) ret = 0; @@ -4585,6 +4703,8 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, } } out_free: + if (!ret) + ret = check_fiemap_cache(root->fs_info, fieinfo, &cache); free_extent_map(em); out: btrfs_free_path(path); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index ea7cae1003eb..f942293dd7e7 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -2951,7 +2951,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent) ret = test_range_bit(io_tree, ordered_extent->file_offset, ordered_extent->file_offset + ordered_extent->len - 1, - EXTENT_DEFRAG, 1, cached_state); + EXTENT_DEFRAG, 0, cached_state); if (ret) { u64 last_snapshot = btrfs_root_last_snapshot(&root->root_item); if (0 && last_snapshot >= BTRFS_I(inode)->generation) @@ -7482,8 +7482,8 @@ bool btrfs_page_exists_in_range(struct inode *inode, loff_t start, loff_t end) int found = false; void **pagep = NULL; struct page *page = NULL; - int start_idx; - int end_idx; + unsigned long start_idx; + unsigned long end_idx; start_idx = start >> PAGE_SHIFT; |