btrfs: hold a ref on the root in get_subvol_name_from_objectid

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We lookup the name of a subvol which means we'll cross into different
roots.  Hold a ref while we're doing the look ups in the fs_root we're
searching.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Josef Bacik 2020-02-06 10:24:26 -05:00 • committed by David Sterba

parent 6f9a3da5da

commit 5168489a07

1 changed files with 10 additions and 1 deletions

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fs/btrfs/super.c

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