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btrfs-progs: remove the unnecessary BTRFS_SUPER_INFO_OFFSET path for tree block read 

We used to use read_whole_eb() to read super block, but it's no longer
the case (so long that I can not even find out which commit did the
conversion).

Thus there is no need for read_whole_eb() to handle super block read
anymore.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2022-04-05 20:48:23 +08:00 committed by David Sterba
parent 013d80648c
commit 7a0c4b5dc1
1 changed files with 1 additions and 2 deletions
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3
kernel-shared/disk-io.c
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@ -305,8 +305,7 @@ int read_whole_eb(struct btrfs_fs_info *info, struct extent_buffer *eb, int mirr
read_len = bytes_left;
device = NULL;
if (!info->on_restoring &&
eb->start != BTRFS_SUPER_INFO_OFFSET) {
if (!info->on_restoring) {
ret = btrfs_map_block(info, READ, eb->start + offset,
&read_len, &multi, mirror, NULL);
if (ret) {