diff options
| author | Hannes Reinecke <hare@suse.de> | 2017-04-07 10:34:14 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-04-12 03:55:20 +0300 |
| commit | 1bc0eb0446158cc76562176b80623aa119afee5b (patch) | |
| tree | f72fe80c00543cbce217db3bc95555fa34b2a09d /security | |
| parent | 136e57bf43dc4babbfb8783abbf707d483cacbe3 (diff) | |
| download | linux-1bc0eb0446158cc76562176b80623aa119afee5b.tar.xz | |
scsi: sg: protect accesses to 'reserved' page array
The 'reserved' page array is used as a short-cut for mapping data,
saving us to allocate pages per request. However, the 'reserved' array
is only capable of holding one request, so this patch introduces a mutex
for protect 'sg_fd' against concurrent accesses.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Tested-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions