Commit a91ae49b authored by Darrick J. Wong's avatar Darrick J. Wong Committed by Dave Chinner
Browse files

vfs: pass remap flags to generic_remap_file_range_prep 



Plumb the remap flags through the filesystem from the vfs function
dispatcher all the way to the prep function to prepare for behavior
changes in subsequent patches.

Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: default avatarAmir Goldstein <amir73il@gmail.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarDave Chinner <david@fromorbit.com>
parent 2e5dfc99

fs/ocfs2/file.c

+1 −1
Original line number Diff line number Diff line
@@ -2538,7 +2538,7 @@ static int ocfs2_remap_file_range(struct file *file_in, 
		return -EINVAL;



	return ocfs2_reflink_remap_range(file_in, pos_in, file_out, pos_out,

					 len, remap_flags & REMAP_FILE_DEDUP);

					 len, remap_flags);

}



const struct inode_operations ocfs2_file_iops = {

fs/ocfs2/refcounttree.c

+2 −2
Original line number Diff line number Diff line
@@ -4825,7 +4825,7 @@ int ocfs2_reflink_remap_range(struct file *file_in, 
			      struct file *file_out,

			      loff_t pos_out,

			      u64 len,

			      bool is_dedupe)

			      unsigned int remap_flags)

{

	struct inode *inode_in = file_inode(file_in);

	struct inode *inode_out = file_inode(file_out);
@@ -4851,7 +4851,7 @@ int ocfs2_reflink_remap_range(struct file *file_in, 
		goto out_unlock;



	ret = generic_remap_file_range_prep(file_in, pos_in, file_out, pos_out,

			&len, is_dedupe);

			&len, remap_flags);

	if (ret <= 0)

		goto out_unlock;

fs/ocfs2/refcounttree.h

+1 −1
Original line number Diff line number Diff line
@@ -120,6 +120,6 @@ int ocfs2_reflink_remap_range(struct file *file_in, 
			      struct file *file_out,

			      loff_t pos_out,

			      u64 len,

			      bool is_dedupe);

			      unsigned int remap_flags);



#endif /* OCFS2_REFCOUNTTREE_H */

fs/read_write.c

+7 −7
Original line number Diff line number Diff line
@@ -1722,14 +1722,14 @@ static int generic_remap_check_len(struct inode *inode_in, 
				   struct inode *inode_out,

				   loff_t pos_out,

				   u64 *len,

				   bool is_dedupe)

				   unsigned int remap_flags)

{

	u64 blkmask = i_blocksize(inode_in) - 1;



	if ((*len & blkmask) == 0)

		return 0;



	if (is_dedupe)

	if (remap_flags & REMAP_FILE_DEDUP)

		*len &= ~blkmask;

	else if (pos_out + *len < i_size_read(inode_out))

		return -EINVAL;
@@ -1747,7 +1747,7 @@ static int generic_remap_check_len(struct inode *inode_in, 
 */

int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,

				  struct file *file_out, loff_t pos_out,

				  u64 *len, bool is_dedupe)

				  u64 *len, unsigned int remap_flags)

{

	struct inode *inode_in = file_inode(file_in);

	struct inode *inode_out = file_inode(file_out);
@@ -1771,7 +1771,7 @@ int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in, 
	if (*len == 0) {

		loff_t isize = i_size_read(inode_in);



		if (is_dedupe || pos_in == isize)

		if ((remap_flags & REMAP_FILE_DEDUP) || pos_in == isize)

			return 0;

		if (pos_in > isize)

			return -EINVAL;
@@ -1782,7 +1782,7 @@ int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in, 


	/* Check that we don't violate system file offset limits. */

	ret = generic_remap_checks(file_in, pos_in, file_out, pos_out, len,

			is_dedupe);

			(remap_flags & REMAP_FILE_DEDUP));

	if (ret)

		return ret;
@@ -1804,7 +1804,7 @@ int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in, 
	/*

	 * Check that the extents are the same.

	 */

	if (is_dedupe) {

	if (remap_flags & REMAP_FILE_DEDUP) {

		bool		is_same = false;



		ret = vfs_dedupe_file_range_compare(inode_in, pos_in,
@@ -1816,7 +1816,7 @@ int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in, 
	}



	ret = generic_remap_check_len(inode_in, inode_out, pos_out, len,

			is_dedupe);

			remap_flags);

	if (ret)

		return ret;

fs/xfs/xfs_file.c

+1 −1
Original line number Diff line number Diff line
@@ -932,7 +932,7 @@ xfs_file_remap_range( 
		return -EINVAL;



	return xfs_reflink_remap_range(file_in, pos_in, file_out, pos_out,

			len, remap_flags & REMAP_FILE_DEDUP);

			len, remap_flags);

}



STATIC int