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block/mm: make bdev_ops->rw_page() take a bool for read/write

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Commit abf545484d changed it from an 'rw' flags type to the
newer ops based interface, but now we're effectively leaking
some bdev internals to the rest of the kernel. Since we only
care about whether it's a read or a write at that level, just
pass in a bool 'is_write' parameter instead.

Then we can also move op_is_write() and friends back under
CONFIG_BLOCK protection.

Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jens Axboe 2016-08-05 08:11:04 -06:00
parent 52ddb7e9dd
commit c11f0c0b5b
11 changed files with 51 additions and 53 deletions
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6
fs/block_dev.c
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@ -416,8 +416,7 @@ int bdev_read_page(struct block_device *bdev, sector_t sector,
result = blk_queue_enter(bdev->bd_queue, false);
if (result)
return result;
result = ops->rw_page(bdev, sector + get_start_sect(bdev), page,
REQ_OP_READ);
result = ops->rw_page(bdev, sector + get_start_sect(bdev), page, false);
blk_queue_exit(bdev->bd_queue);
return result;
}
@ -455,8 +454,7 @@ int bdev_write_page(struct block_device *bdev, sector_t sector,
return result;
set_page_writeback(page);
result = ops->rw_page(bdev, sector + get_start_sect(bdev), page,
REQ_OP_WRITE);
result = ops->rw_page(bdev, sector + get_start_sect(bdev), page, true);
if (result)
end_page_writeback(page);
else