Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ns: add __ns_ref_read()
Implement ns_ref_read() the same way as ns_ref_{get,put}().
No point in making that any more special or different from the other
helpers.
Link: https://patch.msgid.link/20251029-work-namespace-nstree-listns-v4-9-2e6f823ebdc0@kernel.org
Tested-by: syzbot@syzkaller.appspotmail.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
+6
-1
+6
-1
include/linux/ns_common.h
+6
-1
include/linux/ns_common.h
···
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return refcount_inc_not_zero(&ns->__ns_ref);
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}
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-
#define ns_ref_read(__ns) refcount_read(&to_ns_common((__ns))->__ns_ref)
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static __always_inline __must_check int __ns_ref_read(const struct ns_common *ns)
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{
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return refcount_read(&ns->__ns_ref);
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}
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+
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#define ns_ref_read(__ns) __ns_ref_read(to_ns_common((__ns)))
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#define ns_ref_inc(__ns) refcount_inc(&to_ns_common((__ns))->__ns_ref)
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#define ns_ref_get(__ns) __ns_ref_get(to_ns_common((__ns)))
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#define ns_ref_put(__ns) __ns_ref_put(to_ns_common((__ns)))