diff options
| author |   Johannes Thumshirn <johannes.thumshirn@wdc.com> | 2021-09-09 01:19:28 +0900 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2021-10-26 19:08:01 +0200 |
| commit | e6d261e3b1f777b499ce8f535ed44dd1b69278b7 (patch) | |
| tree | a393aa7e02724b0a2789a11646e51f4f96b1e3c1 /fs/btrfs/zoned.c | |
| parent | btrfs: zoned: only allow one process to add pages to a relocation inode (diff) | |
| download | linux-dev-e6d261e3b1f777b499ce8f535ed44dd1b69278b7.tar.xz linux-dev-e6d261e3b1f777b499ce8f535ed44dd1b69278b7.zip | |
btrfs: zoned: use regular writes for relocation
Now that we have a dedicated block group for relocation, we can use
REQ_OP_WRITE instead of REQ_OP_ZONE_APPEND for writing out the data on
relocation.
Reviewed-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/zoned.c')
| -rw-r--r-- | fs/btrfs/zoned.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c index c7fe3e11e685..1433ee220c94 100644 --- a/fs/btrfs/zoned.c +++ b/fs/btrfs/zoned.c @@ -1490,6 +1490,17 @@ bool btrfs_use_zone_append(struct btrfs_inode *inode, u64 start) if (!is_data_inode(&inode->vfs_inode)) return false; + /* + * Using REQ_OP_ZONE_APPNED for relocation can break assumptions on the + * extent layout the relocation code has. + * Furthermore we have set aside own block-group from which only the + * relocation "process" can allocate and make sure only one process at a + * time can add pages to an extent that gets relocated, so it's safe to + * use regular REQ_OP_WRITE for this special case. + */ + if (btrfs_is_data_reloc_root(inode->root)) + return false; + cache = btrfs_lookup_block_group(fs_info, start); ASSERT(cache); if (!cache) |