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btrfs: unexport btrfs_extent_readonly() and make it static

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btrfs_extent_readonly() is used by can_nocow_extent() in inode.c. So
move it from extent-tree.c to inode.c and declare it as static.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain
2021-02-10 21:25:15 -08:00
committed by David Sterba
parent b6e9f16c5f
commit 05947ae186
3 changed files with 13 additions and 14 deletions
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13
fs/btrfs/inode.c
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@ -7262,6 +7262,19 @@ static struct extent_map *btrfs_new_extent_direct(struct btrfs_inode *inode,
return em;
}
static int btrfs_extent_readonly(struct btrfs_fs_info *fs_info, u64 bytenr)
{
struct btrfs_block_group *block_group;
int readonly = 0;
block_group = btrfs_lookup_block_group(fs_info, bytenr);
if (!block_group || block_group->ro)
readonly = 1;
if (block_group)
btrfs_put_block_group(block_group);
return readonly;
}
/*
* Check if we can do nocow write into the range [@offset, @offset + @len)
*