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(parent: 1a22542) | patch
open_detached_copy(): don't bother with mount_lock_hash()
authorAl Viro <viro@zeniv.linux.org.uk>
Tue, 26 Aug 2025 20:53:42 +0000 (16:53 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Tue, 16 Sep 2025 01:26:44 +0000 (21:26 -0400)
commit71cf10ce4562ed7b18f3bd44a4e2dfafd0e84c50
treefcf225d874c50cd2d07cf10337609103f26e429ctree | snapshot
parent1a22542b5ffe2f91859ed7c7e610dc7b588a6713commit | diff
open_detached_copy(): don't bother with mount_lock_hash()

we are holding namespace_sem and a reference to root of tree;
iterating through that tree does not need mount_lock.  Neither
does the insertion into the rbtree of new namespace or incrementing
the mount count of that namespace.

Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/namespace.c diff | blob | blame | history
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