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[SCSI] sd: fix computation of the full size of the device
authorH. Peter Anvin <hpa@zytor.com>
Tue, 14 Oct 2008 18:34:20 +0000 (11:34 -0700)
committerJames Bottomley <James.Bottomley@HansenPartnership.com>
Thu, 23 Oct 2008 16:42:20 +0000 (11:42 -0500)
When computing the full size of the device, we need to cast
sdkp->capacity before shifting, since in some configurations sector_t
can be a 32-bit number.

Also, change ffz(~x) to the more idiomatic ilog2(x).

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

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