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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-01-11 04:20:12 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-01-11 06:19:12 +0100 |
| commit | 4041bcdc7bef06a2fb29c57394c713a74bd13b08 (patch) | |
| tree | adaf5dee1b8312cdd37a2b37551770af461212a3 /lib/idr.c | |
| parent | hfsplus: creation of hidden dir on mount can fail (diff) | |
| download | linux-4041bcdc7bef06a2fb29c57394c713a74bd13b08.tar.xz linux-4041bcdc7bef06a2fb29c57394c713a74bd13b08.zip | |
autofs4: autofs4_wait() vs. autofs4_catatonic_mode() race
We need to recheck ->catatonic after autofs4_wait() got ->wq_mutex
for good, or we might end up with wq inserted into queue after
autofs4_catatonic_mode() had done its thing. It will stick there
forever, since there won't be anything to clear its ->name.name.
A bit of a complication: validate_request() drops and regains ->wq_mutex.
It actually ends up the most convenient place to stick the check into...
Acked-by: Ian Kent <raven@themaw.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'lib/idr.c')
0 files changed, 0 insertions, 0 deletions