Revert "block: implement blkdev_readpages"
This reverts commit db2dbb12dc
.
It apparently causes problems with partition table read-ahead
on archs with large page sizes. Until that problem is diagnosed
further, just drop the readpages support on block devices.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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1 changed files with 0 additions and 7 deletions
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@ -331,12 +331,6 @@ static int blkdev_readpage(struct file * file, struct page * page)
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return block_read_full_page(page, blkdev_get_block);
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}
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static int blkdev_readpages(struct file *file, struct address_space *mapping,
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struct list_head *pages, unsigned nr_pages)
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{
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return mpage_readpages(mapping, pages, nr_pages, blkdev_get_block);
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}
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static int blkdev_write_begin(struct file *file, struct address_space *mapping,
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loff_t pos, unsigned len, unsigned flags,
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struct page **pagep, void **fsdata)
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@ -1405,7 +1399,6 @@ static int blkdev_releasepage(struct page *page, gfp_t wait)
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static const struct address_space_operations def_blk_aops = {
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.readpage = blkdev_readpage,
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.readpages = blkdev_readpages,
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.writepage = blkdev_writepage,
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.sync_page = block_sync_page,
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.write_begin = blkdev_write_begin,
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