btrfs: send: fix is_current_inode_path() to avoid path resets for common prefixes

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In case the current inode's path is a prefix of the given path, the helper
is_current_inode_path() will return true, which causes the single caller
to reset the current inode's path. While this is not a functional issue,
it makes the caller recompute the current inode's path later. It could
also become a problem in the future in case get new callers for
is_current_inode_path() in more sensitive contexts.

Example: the current inode path is "/foo/bar" and the path we compare
against is "/foo/bar_xyz".

Fix this by returning true only if we have exact matches.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Filipe Manana 2026-06-15 17:33:03 +01:00 • committed by David Sterba

parent a4cea1272c

commit bd3dddec1b

1 changed files with 2 additions and 3 deletions

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fs/btrfs/send.c

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