Bug #2042
blkdev should not discard bd->d_maxxfer
| Status: | Resolved | Start date: | 2012-01-28 | |
|---|---|---|---|---|
| Priority: | Normal | Due date: | ||
| Assignee: |  Alexey Zaytsev | % Done: | 0% | |
| Category: | driver - device drivers | |||
| Target version: | - | |||
| Difficulty: | Bite-size | Tags: | needs-triage |
Description
blkdev calculates bd->d_maxxfer parameter based on the user's dma attrs, or hard-codes it to 1M in case DMA is not used. Then it just discards the value, and uses whatever the user set in bd->d_ops.o_drive_info().
Fix: Only use the user's supplied drive.d_maxxfer as an upper bound for bd->d_maxxfer. Also, ignore it if it's zero (the user did not set it).
History
#1
Updated by Alexey Zaytsev almost 6 years ago
- Subject changed from blkdev should not discard bd->d_maxxfer. to blkdev should not discard bd->d_maxxfer
#2
Updated by Alexey Zaytsev almost 6 years ago
- Status changed from New to Resolved
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