From 2adada886b26e998b5a624e72f0834ebfdc54cc7 Mon Sep 17 00:00:00 2001 From: Johannes Thumshirn Date: Thu, 9 Sep 2021 01:19:29 +0900 Subject: [PATCH] btrfs: check for relocation inodes on zoned btrfs in should_nocow Prepare for allowing preallocation for relocation inodes. Reviewed-by: Naohiro Aota Signed-off-by: Johannes Thumshirn Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/inode.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 7d27d6626888f..9b05af75d9109 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1944,7 +1944,15 @@ int btrfs_run_delalloc_range(struct btrfs_inode *inode, struct page *locked_page const bool zoned = btrfs_is_zoned(inode->root->fs_info); if (should_nocow(inode, start, end)) { - ASSERT(!zoned); + /* + * Normally on a zoned device we're only doing COW writes, but + * in case of relocation on a zoned filesystem we have taken + * precaution, that we're only writing sequentially. It's safe + * to use run_delalloc_nocow() here, like for regular + * preallocated inodes. + */ + ASSERT(!zoned || + (zoned && btrfs_is_data_reloc_root(inode->root))); ret = run_delalloc_nocow(inode, locked_page, start, end, page_started, nr_written); } else if (!inode_can_compress(inode) || -- 2.30.2