On 2020/2/25 上午4:22, Johannes Thumshirn wrote:
> CC [M] fs/btrfs/extent_io.o
> fs/btrfs/extent_io.c: In function ‘btree_write_cache_pages’:
> fs/btrfs/extent_io.c:3959:34: error: ‘tree’ undeclared (first use in this function); did you mean ‘true’?
> 3959 | struct btrfs_fs_info *fs_info = tree->fs_info;
> | ^~~~
> | true
> fs/btrfs/extent_io.c:3959:34: note: each undeclared identifier is reported only once for each function it appears in
> make[2]: *** [scripts/Makefile.build:268: fs/btrfs/extent_io.o] Error 1
> make[1]: *** [scripts/Makefile.build:505: fs/btrfs] Error 2
> make: *** [Makefile:1681: fs] Error 2
>
> Fixes: 75c39607eb0a ("btrfs: Don't submit any btree write bio if the fs has errors")
> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>
Just for reference, that @tree is removed in commit 0bad2c5142ee
("btrfs: remove extent_page_data::tree").
Thanks for the fix,
Qu
> ---
> fs/btrfs/extent_io.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
> index 903a85d8fbe3..837262d54e28 100644
> --- a/fs/btrfs/extent_io.c
> +++ b/fs/btrfs/extent_io.c
> @@ -3956,7 +3956,7 @@ int btree_write_cache_pages(struct address_space *mapping,
> .extent_locked = 0,
> .sync_io = wbc->sync_mode == WB_SYNC_ALL,
> };
> - struct btrfs_fs_info *fs_info = tree->fs_info;
> + struct btrfs_fs_info *fs_info = BTRFS_I(mapping->host)->root->fs_info;
> int ret = 0;
> int done = 0;
> int nr_to_write_done = 0;
>
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