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btrfs-progs: fix comments in cmd_filesystem_show

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I had to go back to find what BTRFS_ARG_REG is, add a comment for that.

And, search_umounted_fs_uuids() is also to find the seed device, so bring
the related comment above it.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain 2021-09-30 20:18:55 +08:00 committed by David Sterba
parent 830422fa7e
commit edd57bf494
1 changed files with 6 additions and 4 deletions
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10
cmds/filesystem.c
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@ -754,6 +754,7 @@ static int cmd_filesystem_show(const struct cmd_struct *cmd,
devs_only: devs_only:
if (type == BTRFS_ARG_REG) { if (type == BTRFS_ARG_REG) {
/* /*
* Given input (search) is regular file.
* We don't close the fs_info because it will free the device, * We don't close the fs_info because it will free the device,
* this is not a long-running process so it's fine * this is not a long-running process so it's fine
*/ */
@ -770,16 +771,17 @@ devs_only:
return 1; return 1;
} }
/*
* The seed/sprout mappings are not detected yet, do mapping build for
* all umounted filesystems. But first, copy all unmounted UUIDs only
* to all_uuids.
*/
ret = search_umounted_fs_uuids(&all_uuids, search, &found); ret = search_umounted_fs_uuids(&all_uuids, search, &found);
if (ret < 0) { if (ret < 0) {
error("searching target device returned error %d", ret); error("searching target device returned error %d", ret);
return 1; return 1;
} }
/*
* The seed/sprout mapping are not detected yet,
* do mapping build for all umounted fs
*/
ret = map_seed_devices(&all_uuids); ret = map_seed_devices(&all_uuids);
if (ret) { if (ret) {
error("mapping seed devices returned error %d", ret); error("mapping seed devices returned error %d", ret);