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| author |   Tejun Heo <tj@kernel.org> | 2018-03-14 12:10:17 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2018-03-14 12:10:17 -0700 |
| commit | d0264c01e7587001a8c4608a5d1818dba9a4c11a (patch) | |
| tree | fe5161b426a3c3071a9b3b5ee590af2ddd03e0d1 /drivers | |
| parent | fs/aio: Add explicit RCU grace period when freeing kioctx (diff) | |
| download | linux-dev-d0264c01e7587001a8c4608a5d1818dba9a4c11a.tar.xz linux-dev-d0264c01e7587001a8c4608a5d1818dba9a4c11a.zip | |
fs/aio: Use RCU accessors for kioctx_table->table[]
While converting ioctx index from a list to a table, db446a08c23d
("aio: convert the ioctx list to table lookup v3") missed tagging
kioctx_table->table[] as an array of RCU pointers and using the
appropriate RCU accessors. This introduces a small window in the
lookup path where init and access may race.
Mark kioctx_table->table[] with __rcu and use the approriate RCU
accessors when using the field.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Jann Horn <jannh@google.com>
Fixes: db446a08c23d ("aio: convert the ioctx list to table lookup v3")
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: stable@vger.kernel.org # v3.12+
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions