diff options
| author | Jens Axboe <jens.axboe@oracle.com> | 2009-11-03 21:14:39 +0100 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2009-11-03 21:14:39 +0100 |
| commit | 2058297d2d045cb57138c33b87cfabcc80e65186 (patch) | |
| tree | 7ccffd0e162cbd7471f643561e79f23abb989a62 /drivers/scsi/sr.c | |
| parent | 150e6c67f4bf6ab51e62defc41bd19a2eefe5709 (diff) | |
| parent | 4b27e1bb442e964903f8a3fa6bdf33a602dc0941 (diff) | |
Merge branch 'for-linus' into for-2.6.33
Conflicts:
block/cfq-iosched.c
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers/scsi/sr.c')
| -rw-r--r-- | drivers/scsi/sr.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index eb61f7a70e1..d6f340f48a3 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -684,14 +684,20 @@ static void get_sectorsize(struct scsi_cd *cd) cd->capacity = 0x1fffff; sector_size = 2048; /* A guess, just in case */ } else { -#if 0 - if (cdrom_get_last_written(&cd->cdi, - &cd->capacity)) -#endif - cd->capacity = 1 + ((buffer[0] << 24) | - (buffer[1] << 16) | - (buffer[2] << 8) | - buffer[3]); + long last_written; + + cd->capacity = 1 + ((buffer[0] << 24) | (buffer[1] << 16) | + (buffer[2] << 8) | buffer[3]); + /* + * READ_CAPACITY doesn't return the correct size on + * certain UDF media. If last_written is larger, use + * it instead. + * + * http://bugzilla.kernel.org/show_bug.cgi?id=9668 + */ + if (!cdrom_get_last_written(&cd->cdi, &last_written)) + cd->capacity = max_t(long, cd->capacity, last_written); + sector_size = (buffer[4] << 24) | (buffer[5] << 16) | (buffer[6] << 8) | buffer[7]; switch (sector_size) { |