btrfs: zoned: encapsulate inode locking for zoned relocation
Encapsulate the inode lock needed for serializing the data relocation
writes on a zoned filesystem into a helper.
This streamlines the code reading flow and hides special casing for
zoned filesystems.
Reviewed-by: Josef Bacik <josef@toxicpanda.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>
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index dee4f04..e367b4c 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -5184,8 +5184,6 @@ int extent_writepages(struct address_space *mapping,
struct writeback_control *wbc)
{
struct inode *inode = mapping->host;
- const bool data_reloc = btrfs_is_data_reloc_root(BTRFS_I(inode)->root);
- const bool zoned = btrfs_is_zoned(BTRFS_I(inode)->root->fs_info);
int ret = 0;
struct extent_page_data epd = {
.bio_ctrl = { 0 },
@@ -5197,11 +5195,9 @@ int extent_writepages(struct address_space *mapping,
* Allow only a single thread to do the reloc work in zoned mode to
* protect the write pointer updates.
*/
- if (data_reloc && zoned)
- btrfs_inode_lock(inode, 0);
+ btrfs_zoned_data_reloc_lock(BTRFS_I(inode));
ret = extent_write_cache_pages(mapping, wbc, &epd);
- if (data_reloc && zoned)
- btrfs_inode_unlock(inode, 0);
+ btrfs_zoned_data_reloc_unlock(BTRFS_I(inode));
ASSERT(ret <= 0);
if (ret < 0) {
end_write_bio(&epd, ret);
diff --git a/fs/btrfs/zoned.h b/fs/btrfs/zoned.h
index 4344f48..a7b4cd6 100644
--- a/fs/btrfs/zoned.h
+++ b/fs/btrfs/zoned.h
@@ -8,6 +8,7 @@
#include "volumes.h"
#include "disk-io.h"
#include "block-group.h"
+#include "btrfs_inode.h"
/*
* Block groups with more than this value (percents) of unusable space will be
@@ -354,4 +355,20 @@ static inline void btrfs_clear_treelog_bg(struct btrfs_block_group *bg)
spin_unlock(&fs_info->treelog_bg_lock);
}
+static inline void btrfs_zoned_data_reloc_lock(struct btrfs_inode *inode)
+{
+ struct btrfs_root *root = inode->root;
+
+ if (btrfs_is_data_reloc_root(root) && btrfs_is_zoned(root->fs_info))
+ btrfs_inode_lock(&inode->vfs_inode, 0);
+}
+
+static inline void btrfs_zoned_data_reloc_unlock(struct btrfs_inode *inode)
+{
+ struct btrfs_root *root = inode->root;
+
+ if (btrfs_is_data_reloc_root(root) && btrfs_is_zoned(root->fs_info))
+ btrfs_inode_unlock(&inode->vfs_inode, 0);
+}
+
#endif