]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
radix tree test suite: iteration test misuses RCU
authorMatthew Wilcox <mawilcox@microsoft.com>
Wed, 14 Dec 2016 23:08:11 +0000 (15:08 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 15 Dec 2016 00:04:09 +0000 (16:04 -0800)
commitba20cd60c97945f0de9fe313f869b3a5855e1503
tree35a39c27248705e7c736c9ee5bfa1d22d69a3a2e
parent061ef3936b16edc8f779d403d569392505665ed5
radix tree test suite: iteration test misuses RCU

Each thread needs to register itself with RCU, otherwise the reading
thread's read lock has no effect and the freeing thread will free the
memory in the tree without waiting for the read lock to be dropped.

Link: http://lkml.kernel.org/r/1480369871-5271-42-git-send-email-mawilcox@linuxonhyperv.com
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
tools/testing/radix-tree/iteration_check.c