new helper: d_find_alias_rcu()

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similar to d_find_alias(inode), except that
	* the caller must be holding rcu_read_lock()
	* inode must not be freed until matching rcu_read_unlock()
	* result is *NOT* pinned and can only be dereferenced until
the matching rcu_read_unlock().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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Al Viro 2021-01-05 14:13:52 -05:00

parent d36a1dd9f7

commit bca585d24a

2 changed files with 27 additions and 0 deletions

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25

fs/dcache.c

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2

include/linux/dcache.h

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