diff options
| author | Qu Wenruo <wqu@suse.com> | 2020-10-21 09:25:05 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-12-08 17:54:03 +0300 |
| commit | 478ef8868ff80372e29d1c5283f360cf49ab0a8b (patch) | |
| tree | 8e9f09bcc90b61505467f46f1121b490eb7e8ae6 /fs/btrfs | |
| parent | 0d01e247a06b9f36f685edf6c2e74f79f60df9cd (diff) | |
btrfs: make buffer_radix take sector size units
For subpage sector size support, one page can contain multiple tree
blocks. The entries cannot be based on page size and index must be
derived from the sectorsize. No change for page size == sector size.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/ctree.h | 1 | ||||
| -rw-r--r-- | fs/btrfs/extent_io.c | 8 |
2 files changed, 5 insertions, 4 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 2aa3d882aede..591151266372 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -912,6 +912,7 @@ struct btrfs_fs_info { /* Extent buffer radix tree */ spinlock_t buffer_lock; + /* Entries are eb->start / sectorsize */ struct radix_tree_root buffer_radix; /* next backup root to be overwritten */ diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 092ccb811eac..1dfbe859c650 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -5107,7 +5107,7 @@ struct extent_buffer *find_extent_buffer(struct btrfs_fs_info *fs_info, rcu_read_lock(); eb = radix_tree_lookup(&fs_info->buffer_radix, - start >> PAGE_SHIFT); + start >> fs_info->sectorsize_bits); if (eb && atomic_inc_not_zero(&eb->refs)) { rcu_read_unlock(); /* @@ -5159,7 +5159,7 @@ again: } spin_lock(&fs_info->buffer_lock); ret = radix_tree_insert(&fs_info->buffer_radix, - start >> PAGE_SHIFT, eb); + start >> fs_info->sectorsize_bits, eb); spin_unlock(&fs_info->buffer_lock); radix_tree_preload_end(); if (ret == -EEXIST) { @@ -5267,7 +5267,7 @@ again: spin_lock(&fs_info->buffer_lock); ret = radix_tree_insert(&fs_info->buffer_radix, - start >> PAGE_SHIFT, eb); + start >> fs_info->sectorsize_bits, eb); spin_unlock(&fs_info->buffer_lock); radix_tree_preload_end(); if (ret == -EEXIST) { @@ -5323,7 +5323,7 @@ static int release_extent_buffer(struct extent_buffer *eb) spin_lock(&fs_info->buffer_lock); radix_tree_delete(&fs_info->buffer_radix, - eb->start >> PAGE_SHIFT); + eb->start >> fs_info->sectorsize_bits); spin_unlock(&fs_info->buffer_lock); } else { spin_unlock(&eb->refs_lock); |