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xfs: use struct iomap based DAX PMD fault path 

Switch xfs_filemap_pmd_fault() from using dax_pmd_fault() to the new and
improved dax_iomap_pmd_fault().  Also, now that it has no more users,
remove xfs_get_blocks_dax_fault().

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Ross Zwisler 2016-11-08 11:35:02 +11:00 committed by Dave Chinner
parent 642261ac99
commit 862f1b9d67
3 changed files with 6 additions and 25 deletions
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26
fs/xfs/xfs_aops.c
View File

@ -1298,8 +1298,7 @@ __xfs_get_blocks(
sector_t iblock,
struct buffer_head *bh_result,
int create,
bool direct,
bool dax_fault)
bool direct)
{
struct xfs_inode *ip = XFS_I(inode);
struct xfs_mount *mp = ip->i_mount;
@ -1420,13 +1419,8 @@ __xfs_get_blocks(
if (ISUNWRITTEN(&imap))
set_buffer_unwritten(bh_result);
/* direct IO needs special help */
if (create) {
if (dax_fault)
ASSERT(!ISUNWRITTEN(&imap));
else
xfs_map_direct(inode, bh_result, &imap, offset,
is_cow);
}
if (create)
xfs_map_direct(inode, bh_result, &imap, offset, is_cow);
}
/*
@ -1466,7 +1460,7 @@ xfs_get_blocks(
struct buffer_head *bh_result,
int create)
{
return __xfs_get_blocks(inode, iblock, bh_result, create, false, false);
return __xfs_get_blocks(inode, iblock, bh_result, create, false);
}
int
@ -1476,17 +1470,7 @@ xfs_get_blocks_direct(
struct buffer_head *bh_result,
int create)
{
return __xfs_get_blocks(inode, iblock, bh_result, create, true, false);
}
int
xfs_get_blocks_dax_fault(
struct inode *inode,
sector_t iblock,
struct buffer_head *bh_result,
int create)
{
return __xfs_get_blocks(inode, iblock, bh_result, create, true, true);
return __xfs_get_blocks(inode, iblock, bh_result, create, true);
}
/*

3
fs/xfs/xfs_aops.h
View File

@ -59,9 +59,6 @@ int xfs_get_blocks(struct inode *inode, sector_t offset,
struct buffer_head *map_bh, int create);
int xfs_get_blocks_direct(struct inode *inode, sector_t offset,
struct buffer_head *map_bh, int create);
int xfs_get_blocks_dax_fault(struct inode *inode, sector_t offset,
struct buffer_head *map_bh, int create);
int xfs_end_io_direct_write(struct kiocb *iocb, loff_t offset,
ssize_t size, void *private);
int xfs_setfilesize(struct xfs_inode *ip, xfs_off_t offset, size_t size);

2
fs/xfs/xfs_file.c
View File

@ -1711,7 +1711,7 @@ xfs_filemap_pmd_fault(
}
xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED);
ret = dax_pmd_fault(vma, addr, pmd, flags, xfs_get_blocks_dax_fault);
ret = dax_iomap_pmd_fault(vma, addr, pmd, flags, &xfs_iomap_ops);
xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED);
if (flags & FAULT_FLAG_WRITE)