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| author | Brian Behlendorf <behlendorf1@llnl.gov> | 2013-05-24 15:55:28 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-24 16:22:52 -0700 |
| commit | dfd20b2b174d3a9b258ea3b7a35ead33576587b1 (patch) | |
| tree | afa033d613e8eca4bdaf6f9be2b990318a886b36 /fs/nilfs2 | |
| parent | e5ee7305ae03e43dbe2b0e346232975f793ad0eb (diff) | |
| download | linux-dfd20b2b174d3a9b258ea3b7a35ead33576587b1.tar.gz linux-dfd20b2b174d3a9b258ea3b7a35ead33576587b1.tar.bz2 linux-dfd20b2b174d3a9b258ea3b7a35ead33576587b1.zip | |
drivers/block/brd.c: fix brd_lookup_page() race
The index on the page must be set before it is inserted in the radix
tree. Otherwise there is a small race which can occur during lookup
where the page can be found with the incorrect index. This will trigger
the BUG_ON() in brd_lookup_page().
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reported-by: Chris Wedgwood <cw@f00f.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2')
0 files changed, 0 insertions, 0 deletions