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dax: use sb_issue_zerout instead of calling dax_clear_sectors

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dax_clear_sectors() cannot handle poisoned blocks.  These must be
zeroed using the BIO interface instead.  Convert ext2 and XFS to use
only sb_issue_zerout().

Reviewed-by: Jeff Moyer <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Signed-off-by: Matthew Wilcox <[email protected]>
[vishal: Also remove the dax_clear_sectors function entirely]
Signed-off-by: Vishal Verma <[email protected]>
This commit is contained in:
Matthew Wilcox 2016-03-15 11:20:41 -06:00 • committed by Vishal Verma
commit 3dc2916107
4 changed files with 8 additions and 48 deletions
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8
fs/ext2/inode.c
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@ -26,6 +26,7 @@
#include <linux/highuid.h>
#include <linux/pagemap.h>
#include <linux/dax.h>
#include <linux/blkdev.h>
#include <linux/quotaops.h>
#include <linux/writeback.h>
#include <linux/buffer_head.h>
@ -737,10 +738,9 @@ static int ext2_get_blocks(struct inode *inode,
* so that it's not found by another thread before it's
* initialised
*/
err = dax_clear_sectors(inode->i_sb->s_bdev,
le32_to_cpu(chain[depth-1].key) <<
(inode->i_blkbits - 9),
count << inode->i_blkbits);
err = sb_issue_zeroout(inode->i_sb,
le32_to_cpu(chain[depth-1].key), count,
GFP_NOFS);
if (err) {
mutex_unlock(&ei->truncate_mutex);
goto cleanup;