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17 May 2024, 09:02:56 UTC
Revision 7bd88377d482e1eae3c5329b12e33cfd664fa6a9 authored by Al Viro on 14 September 2014, 01:55:46 UTC, committed by Al Viro on 14 September 2014, 18:19:44 UTC 
don't bugger nd->seq on set_root_rcu() from follow_dotdot_rcu()
 
return the value instead, and have path_init() do the assignment.  Broken by
"vfs: Fix absolute RCU path walk failures due to uninitialized seq number",
which was Cc-stable with 2.6.38+ as destination.  This one should go where
it went.

To avoid dummy value returned in case when root is already set (it would do
no harm, actually, since the only caller that doesn't ignore the return value
is guaranteed to have nd->root *not* set, but it's more obvious that way),
lift the check into callers.  And do the same to set_root(), to keep them
in sync.

Cc: stable@vger.kernel.org # 2.6.38+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
1 parent f5be3e2
History
Tip revision: 7bd88377d482e1eae3c5329b12e33cfd664fa6a9 authored by Al Viro on 14 September 2014, 01:55:46 UTC
don't bugger nd->seq on set_root_rcu() from follow_dotdot_rcu()
Tip revision: 7bd8837
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