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| author | Christoph Hellwig <hch@lst.de> | 2016-06-21 09:53:44 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-06-21 09:53:44 +1000 |
| commit | 68a9f5e7007c1afa2cf6830b690a90d0187c0684 (patch) | |
| tree | 986de78ca7e20e49604faecccc95685ce52b4090 /fs/xfs/xfs_iops.c | |
| parent | f0c6bcba74ac51cb77aadb33ad35cb2dc1ad1506 (diff) | |
| download | linux-stable-68a9f5e7007c1afa2cf6830b690a90d0187c0684.tar.gz linux-stable-68a9f5e7007c1afa2cf6830b690a90d0187c0684.tar.bz2 linux-stable-68a9f5e7007c1afa2cf6830b690a90d0187c0684.zip | |
xfs: implement iomap based buffered write path
Convert XFS to use the new iomap based multipage write path. This involves
implementing the ->iomap_begin and ->iomap_end methods, and switching the
buffered file write, page_mkwrite and xfs_iozero paths to the new iomap
helpers.
With this change __xfs_get_blocks will never be used for buffered writes,
and the code handling them can be removed.
Based on earlier code from Dave Chinner.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_iops.c')
| -rw-r--r-- | fs/xfs/xfs_iops.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 1a5ca4b4a866..5d1fdae4e39b 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -38,6 +38,7 @@ #include "xfs_dir2.h" #include "xfs_trans_space.h" #include "xfs_pnfs.h" +#include "xfs_iomap.h" #include <linux/capability.h> #include <linux/xattr.h> @@ -822,8 +823,8 @@ xfs_setattr_size( error = dax_truncate_page(inode, newsize, xfs_get_blocks_direct); } else { - error = block_truncate_page(inode->i_mapping, newsize, - xfs_get_blocks); + error = iomap_truncate_page(inode, newsize, + &did_zeroing, &xfs_iomap_ops); } } @@ -838,8 +839,8 @@ xfs_setattr_size( * problem. Note that this includes any block zeroing we did above; * otherwise those blocks may not be zeroed after a crash. */ - if (newsize > ip->i_d.di_size && - (oldsize != ip->i_d.di_size || did_zeroing)) { + if (did_zeroing || + (newsize > ip->i_d.di_size && oldsize != ip->i_d.di_size)) { error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping, ip->i_d.di_size, newsize); if (error) |