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| author | Jens Axboe <axboe@fb.com> | 2015-01-13 21:58:45 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-01-13 21:58:45 -0700 |
| commit | d4119ee0e1aa2b74e5e367cbc915e79db7b9e271 (patch) | |
| tree | dae4e7bebdda0db62a00c5bb3d054a6018d68444 /arch/powerpc/sysdev | |
| parent | 91117a20245b59f70b563523edbf998a62fc6383 (diff) | |
| parent | dd22f551ac0ad366f92f601835f6623b83adc331 (diff) | |
Merge branch 'for-3.20/core' into for-3.20/drivers
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/axonram.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c index 367533bb3d48..ee90db17b097 100644 --- a/arch/powerpc/sysdev/axonram.c +++ b/arch/powerpc/sysdev/axonram.c @@ -139,26 +139,17 @@ axon_ram_make_request(struct request_queue *queue, struct bio *bio) * axon_ram_direct_access - direct_access() method for block device * @device, @sector, @data: see block_device_operations method */ -static int +static long axon_ram_direct_access(struct block_device *device, sector_t sector, - void **kaddr, unsigned long *pfn) + void **kaddr, unsigned long *pfn, long size) { struct axon_ram_bank *bank = device->bd_disk->private_data; - loff_t offset; - - offset = sector; - if (device->bd_part != NULL) - offset += device->bd_part->start_sect; - offset <<= AXON_RAM_SECTOR_SHIFT; - if (offset >= bank->size) { - dev_err(&bank->device->dev, "Access outside of address space\n"); - return -ERANGE; - } + loff_t offset = (loff_t)sector << AXON_RAM_SECTOR_SHIFT; *kaddr = (void *)(bank->ph_addr + offset); *pfn = virt_to_phys(*kaddr) >> PAGE_SHIFT; - return 0; + return bank->size - offset; } static const struct block_device_operations axon_ram_devops = { |