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| author | Jarek Poplawski <jarkao2@gmail.com> | 2008-02-11 21:26:43 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-02-12 17:53:32 -0800 |
| commit | 4de211f1a279275c6c67d6e9b6b25513e46b0bb9 (patch) | |
| tree | b8e57f1000ed1d5ba0d93a8126a613ca6b3c7a7a /mm/readahead.c | |
| parent | 1105b5d1d44e6f00e31422dfcb0139bc8ae966a9 (diff) | |
| download | linux-4de211f1a279275c6c67d6e9b6b25513e46b0bb9.tar.bz2 | |
[AX25] ax25_route: make ax25_route_lock BH safe
> =================================
> [ INFO: inconsistent lock state ]
> 2.6.24-dg8ngn-p02 #1
> ---------------------------------
> inconsistent {softirq-on-W} -> {in-softirq-R} usage.
> linuxnet/3046 [HC0[0]:SC1[2]:HE1:SE0] takes:
> (ax25_route_lock){--.+}, at: [<f8a0cfb7>] ax25_get_route+0x18/0xb7 [ax25]
> {softirq-on-W} state was registered at:
...
This lockdep report shows that ax25_route_lock is taken for reading in
softirq context, and for writing in process context with BHs enabled.
So, to make this safe, all write_locks in ax25_route.c are changed to
_bh versions.
Reported-by: Jann Traschewski <jann@gmx.de>,
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/readahead.c')
0 files changed, 0 insertions, 0 deletions