fs: massage locking helpers

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Multiple people have balked at the the fact that
super_lock{_shared,_excluse}() return booleans and even if they return
false hold s_umount. So let's change them to only hold s_umount when
true is returned and change the code accordingly.

Link: https://lore.kernel.org/r/20231024-vfs-super-freeze-v2-1-599c19f4faac@kernel.org
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>

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Christian Brauner 2023-10-24 15:01:07 +02:00

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commit f0cd988016

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fs/super.c

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