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author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2010-04-10 16:47:18 +0100 |
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committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2010-04-10 16:51:15 +0200 |
commit | 7cfe21aae155c26193fde617dc61d37a79a63f86 (patch) | |
tree | 6600d3171afdfad430155f5e8a1f526367a6174d /block | |
parent | 3ac26b2ee30005930117fe6a180c139c5f300faf (diff) |
ieee1394: mark char device files as not seekable
The
- raw1394 (/dev/raw1394),
- video1394 (/dev/video1394/*),
- dv1394 (/dev/dv1394/*)
character device file ABIs do not make any use of lseek(), pread(), or
pwrite(). Therefore use nonseekable_open() and, redundantly, set
file_operations.llseek to no_llseek to remove any doubt whether the BKL-
grabbing default_llseek handler is used.
Although all this is legacy code which should be left in peace until it
is eventually removed (as it is superseded by firewire-core's
<linux/firewire-cdev.h> ABI), this change seems still worth doing to
further minimize the presence of BKL usage in the kernel.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions