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| author | Brian King <[email protected]> | 2015-01-29 21:54:40 +0000 |
|---|---|---|
| committer | Christoph Hellwig <[email protected]> | 2015-02-02 12:46:29 +0000 |
| commit | 3a9794d32984b67a6d8992226918618f0e51e5d5 (patch) | |
| tree | 63a25d8d1d8b851c97a0d24e334f1a317d07fb63 /drivers/net/xen-netback/interface.c | |
| parent | scsi: fix device handler detach oops (diff) | |
| download | kernel-3a9794d32984b67a6d8992226918618f0e51e5d5.tar.gz kernel-3a9794d32984b67a6d8992226918618f0e51e5d5.zip | |
sd: Fix max transfer length for 4k disks
The following patch fixes an issue observed with 4k sector disks
where the max_hw_sectors attribute was getting set too large in
sd_revalidate_disk. Since sdkp->max_xfer_blocks is in units
of SCSI logical blocks and queue_max_hw_sectors is in units of
512 byte blocks, on a 4k sector disk, every time we went through
sd_revalidate_disk, we were taking the current value of
queue_max_hw_sectors and increasing it by a factor of 8. Fix
this by only shifting sdkp->max_xfer_blocks.
Cc: [email protected]
Signed-off-by: Brian King <[email protected]>
Reviewed-by: Paolo Bonzini <[email protected]>
Reviewed-by: Martin K. Petersen <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
0 files changed, 0 insertions, 0 deletions