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| author | Jeff Mahoney <jeffm@suse.de> | 2012-08-18 21:20:39 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-09-14 18:59:28 +0200 |
| commit | 6c648d95a6af4a79241a916871df17c84c68ea20 (patch) | |
| tree | 9c658ea5964dea1ecdb029ce955587d17bea6d03 /drivers/scsi/st.h | |
| parent | [SCSI] st: clean up dev cleanup in st_probe (diff) | |
| download | linux-6c648d95a6af4a79241a916871df17c84c68ea20.tar.xz linux-6c648d95a6af4a79241a916871df17c84c68ea20.zip | |
[SCSI] st: get rid of scsi_tapes array
st currently allocates an array to store pointers to all of the
scsi_tape objects. It's used to discover available indexes to use as the
base for the minor number selection and later to look up scsi_tape
devices for character devices.
We switch to using an IDR for minor selection and a pointer from
st_modedef back to scsi_tape for the lookups.
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Acked-by: Kai Mäkisara <kai.makisara@kolumbus.fi>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/st.h')
| -rw-r--r-- | drivers/scsi/st.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/st.h b/drivers/scsi/st.h index b548923785ed..8a23640981c8 100644 --- a/drivers/scsi/st.h +++ b/drivers/scsi/st.h @@ -66,6 +66,7 @@ struct st_modedef { unsigned char default_compression; /* 0 = don't touch, etc */ short default_density; /* Forced density, -1 = no value */ int default_blksize; /* Forced blocksize, -1 = no value */ + struct scsi_tape *tape; struct cdev *cdevs[2]; /* Auto-rewind and non-rewind devices */ }; @@ -99,6 +100,7 @@ struct scsi_tape { struct mutex lock; /* For serialization */ struct completion wait; /* For SCSI commands */ struct st_buffer *buffer; + int index; /* Drive characteristics */ unsigned char omit_blklims; |