| commit | 8cc07c808c9d595e81cbe5aad419b7769eb2e5c9 | [log] [tgz] |
|---|---|---|
| author | Will Deacon <will.deacon@arm.com> | Mon Feb 19 14:55:55 2018 +0000 |
| committer | Al Viro <viro@zeniv.linux.org.uk> | Sun Feb 25 12:51:10 2018 -0500 |
| tree | b67b43888c8f559aba6365fd2a9965584d626f41 | |
| parent | 015555fd4d2930bc0c86952c46ad88b3392f66e4 [diff] |
fs: dcache: Use READ_ONCE when accessing i_dir_seq i_dir_seq is subject to concurrent modification by a cmpxchg or store-release operation, so ensure that the relaxed access in d_alloc_parallel uses READ_ONCE. Reported-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>