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| author | Nick Piggin <npiggin@kernel.dk> | 2011-01-14 02:36:19 +0000 |
|---|---|---|
| committer | Nick Piggin <npiggin@hera.kernel.org> | 2011-01-14 02:36:19 +0000 |
| commit | 90dbb77ba48dddb87445d238e84cd137cf97dd98 (patch) | |
| tree | 446772602e5944075a6c614db05dd06681f3f3d8 /mm/madvise.c | |
| parent | bb20c18db6fbb5e6ba499c76473a487d35073467 (diff) | |
| download | op-kernel-dev-90dbb77ba48dddb87445d238e84cd137cf97dd98.zip op-kernel-dev-90dbb77ba48dddb87445d238e84cd137cf97dd98.tar.gz | |
fs: fix dropping of rcu-walk from force_reval_path
As J. R. Okajima noted, force_reval_path passes in the same dentry to
d_revalidate as the one in the nameidata structure (other callers pass in a
child), so the locking breaks. This can oops with a chrooted nfs mount, for
example. Similarly there can be other problems with revalidating a dentry
which is already in nameidata of the path walk.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'mm/madvise.c')
0 files changed, 0 insertions, 0 deletions
