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From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: david@fromorbit.com, darrick.wong@oracle.com
Cc: sandeen@redhat.com, linux-nfs@vger.kernel.org,
	linux-cifs@vger.kernel.org, Amir Goldstein <amir73il@gmail.com>,
	linux-unionfs@vger.kernel.org, linux-xfs@vger.kernel.org,
	linux-mm@kvack.org, linux-btrfs@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, ocfs2-devel@oss.oracle.com
Subject: [PATCH 14/28] vfs: plumb remap flags through the vfs clone functions
Date: Sun, 21 Oct 2018 09:16:42 -0700	[thread overview]
Message-ID: <154013860216.29026.8102541414755320141.stgit@magnolia> (raw)
In-Reply-To: <154013850285.29026.16168387526580596209.stgit@magnolia>

From: Darrick J. Wong <darrick.wong@oracle.com>

Plumb a remap_flags argument through the {do,vfs}_clone_file_range
functions so that clone can take advantage of it.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
---
 fs/ioctl.c             |    2 +-
 fs/nfsd/vfs.c          |    2 +-
 fs/overlayfs/copy_up.c |    2 +-
 fs/overlayfs/file.c    |    6 +++---
 fs/read_write.c        |   13 +++++++++----
 include/linux/fs.h     |    4 ++--
 6 files changed, 17 insertions(+), 12 deletions(-)


diff --git a/fs/ioctl.c b/fs/ioctl.c
index 72537b68c272..505275ec5596 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -232,7 +232,7 @@ static long ioctl_file_clone(struct file *dst_file, unsigned long srcfd,
 	if (src_file.file->f_path.mnt != dst_file->f_path.mnt)
 		goto fdput;
 	cloned = vfs_clone_file_range(src_file.file, off, dst_file, destoff,
-				      olen);
+				      olen, 0);
 	if (cloned < 0)
 		ret = cloned;
 	else if (olen && cloned != olen)
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index ac6cb6101cbe..726fc5b2b27a 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -543,7 +543,7 @@ __be32 nfsd4_clone_file_range(struct file *src, u64 src_pos, struct file *dst,
 {
 	loff_t cloned;
 
-	cloned = vfs_clone_file_range(src, src_pos, dst, dst_pos, count);
+	cloned = vfs_clone_file_range(src, src_pos, dst, dst_pos, count, 0);
 	if (count && cloned != count)
 		cloned = -EINVAL;
 	return nfserrno(cloned < 0 ? cloned : 0);
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index 8750b7235516..5f82fece64a0 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -142,7 +142,7 @@ static int ovl_copy_up_data(struct path *old, struct path *new, loff_t len)
 	}
 
 	/* Try to use clone_file_range to clone up within the same fs */
-	cloned = do_clone_file_range(old_file, 0, new_file, 0, len);
+	cloned = do_clone_file_range(old_file, 0, new_file, 0, len, 0);
 	if (cloned == len)
 		goto out;
 	/* Couldn't clone, so now we try to copy the data */
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index 6c3fec6168e9..0393815c8971 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -462,7 +462,7 @@ static loff_t ovl_copyfile(struct file *file_in, loff_t pos_in,
 
 	case OVL_CLONE:
 		ret = vfs_clone_file_range(real_in.file, pos_in,
-					   real_out.file, pos_out, len);
+					   real_out.file, pos_out, len, flags);
 		break;
 
 	case OVL_DEDUPE:
@@ -512,8 +512,8 @@ static loff_t ovl_remap_file_range(struct file *file_in, loff_t pos_in,
 	     !ovl_inode_upper(file_inode(file_out))))
 		return -EPERM;
 
-	return ovl_copyfile(file_in, pos_in, file_out, pos_out, len, 0,
-			    op);
+	return ovl_copyfile(file_in, pos_in, file_out, pos_out, len,
+			    remap_flags, op);
 }
 
 const struct file_operations ovl_file_operations = {
diff --git a/fs/read_write.c b/fs/read_write.c
index 356641afa487..0d1ac1b9bc22 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1848,12 +1848,15 @@ int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
 EXPORT_SYMBOL(generic_remap_file_range_prep);
 
 loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,
-			   struct file *file_out, loff_t pos_out, loff_t len)
+			   struct file *file_out, loff_t pos_out,
+			   loff_t len, unsigned int remap_flags)
 {
 	struct inode *inode_in = file_inode(file_in);
 	struct inode *inode_out = file_inode(file_out);
 	loff_t ret;
 
+	WARN_ON_ONCE(remap_flags);
+
 	if (S_ISDIR(inode_in->i_mode) || S_ISDIR(inode_out->i_mode))
 		return -EISDIR;
 	if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode))
@@ -1884,7 +1887,7 @@ loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,
 		return ret;
 
 	ret = file_in->f_op->remap_file_range(file_in, pos_in,
-			file_out, pos_out, len, 0);
+			file_out, pos_out, len, remap_flags);
 	if (ret < 0)
 		return ret;
 
@@ -1895,12 +1898,14 @@ loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,
 EXPORT_SYMBOL(do_clone_file_range);
 
 loff_t vfs_clone_file_range(struct file *file_in, loff_t pos_in,
-			    struct file *file_out, loff_t pos_out, loff_t len)
+			    struct file *file_out, loff_t pos_out,
+			    loff_t len, unsigned int remap_flags)
 {
 	loff_t ret;
 
 	file_start_write(file_out);
-	ret = do_clone_file_range(file_in, pos_in, file_out, pos_out, len);
+	ret = do_clone_file_range(file_in, pos_in, file_out, pos_out, len,
+				  remap_flags);
 	file_end_write(file_out);
 
 	return ret;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index c72d8c3c065a..1c5e55d2a67d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1848,10 +1848,10 @@ extern int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
 					 unsigned int remap_flags);
 extern loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,
 				  struct file *file_out, loff_t pos_out,
-				  loff_t len);
+				  loff_t len, unsigned int remap_flags);
 extern loff_t vfs_clone_file_range(struct file *file_in, loff_t pos_in,
 				   struct file *file_out, loff_t pos_out,
-				   loff_t len);
+				   loff_t len, unsigned int remap_flags);
 extern int vfs_dedupe_file_range_compare(struct inode *src, loff_t srcoff,
 					 struct inode *dest, loff_t destoff,
 					 loff_t len, bool *is_same);

WARNING: multiple messages have this Message-ID
From: Darrick J. Wong <darrick.wong@oracle.com>
To: david@fromorbit.com, darrick.wong@oracle.com
Cc: sandeen@redhat.com, linux-nfs@vger.kernel.org,
	linux-cifs@vger.kernel.org, Amir Goldstein <amir73il@gmail.com>,
	linux-unionfs@vger.kernel.org, linux-xfs@vger.kernel.org,
	linux-mm@kvack.org, linux-btrfs@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] [PATCH 14/28] vfs: plumb remap flags through the vfs clone functions
Date: Sun, 21 Oct 2018 09:16:42 -0700	[thread overview]
Message-ID: <154013860216.29026.8102541414755320141.stgit@magnolia> (raw)
In-Reply-To: <154013850285.29026.16168387526580596209.stgit@magnolia>

From: Darrick J. Wong <darrick.wong@oracle.com>

Plumb a remap_flags argument through the {do,vfs}_clone_file_range
functions so that clone can take advantage of it.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
---
 fs/ioctl.c             |    2 +-
 fs/nfsd/vfs.c          |    2 +-
 fs/overlayfs/copy_up.c |    2 +-
 fs/overlayfs/file.c    |    6 +++---
 fs/read_write.c        |   13 +++++++++----
 include/linux/fs.h     |    4 ++--
 6 files changed, 17 insertions(+), 12 deletions(-)


diff --git a/fs/ioctl.c b/fs/ioctl.c
index 72537b68c272..505275ec5596 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -232,7 +232,7 @@ static long ioctl_file_clone(struct file *dst_file, unsigned long srcfd,
 	if (src_file.file->f_path.mnt != dst_file->f_path.mnt)
 		goto fdput;
 	cloned = vfs_clone_file_range(src_file.file, off, dst_file, destoff,
-				      olen);
+				      olen, 0);
 	if (cloned < 0)
 		ret = cloned;
 	else if (olen && cloned != olen)
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index ac6cb6101cbe..726fc5b2b27a 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -543,7 +543,7 @@ __be32 nfsd4_clone_file_range(struct file *src, u64 src_pos, struct file *dst,
 {
 	loff_t cloned;
 
-	cloned = vfs_clone_file_range(src, src_pos, dst, dst_pos, count);
+	cloned = vfs_clone_file_range(src, src_pos, dst, dst_pos, count, 0);
 	if (count && cloned != count)
 		cloned = -EINVAL;
 	return nfserrno(cloned < 0 ? cloned : 0);
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index 8750b7235516..5f82fece64a0 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -142,7 +142,7 @@ static int ovl_copy_up_data(struct path *old, struct path *new, loff_t len)
 	}
 
 	/* Try to use clone_file_range to clone up within the same fs */
-	cloned = do_clone_file_range(old_file, 0, new_file, 0, len);
+	cloned = do_clone_file_range(old_file, 0, new_file, 0, len, 0);
 	if (cloned == len)
 		goto out;
 	/* Couldn't clone, so now we try to copy the data */
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index 6c3fec6168e9..0393815c8971 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -462,7 +462,7 @@ static loff_t ovl_copyfile(struct file *file_in, loff_t pos_in,
 
 	case OVL_CLONE:
 		ret = vfs_clone_file_range(real_in.file, pos_in,
-					   real_out.file, pos_out, len);
+					   real_out.file, pos_out, len, flags);
 		break;
 
 	case OVL_DEDUPE:
@@ -512,8 +512,8 @@ static loff_t ovl_remap_file_range(struct file *file_in, loff_t pos_in,
 	     !ovl_inode_upper(file_inode(file_out))))
 		return -EPERM;
 
-	return ovl_copyfile(file_in, pos_in, file_out, pos_out, len, 0,
-			    op);
+	return ovl_copyfile(file_in, pos_in, file_out, pos_out, len,
+			    remap_flags, op);
 }
 
 const struct file_operations ovl_file_operations = {
diff --git a/fs/read_write.c b/fs/read_write.c
index 356641afa487..0d1ac1b9bc22 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1848,12 +1848,15 @@ int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
 EXPORT_SYMBOL(generic_remap_file_range_prep);
 
 loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,
-			   struct file *file_out, loff_t pos_out, loff_t len)
+			   struct file *file_out, loff_t pos_out,
+			   loff_t len, unsigned int remap_flags)
 {
 	struct inode *inode_in = file_inode(file_in);
 	struct inode *inode_out = file_inode(file_out);
 	loff_t ret;
 
+	WARN_ON_ONCE(remap_flags);
+
 	if (S_ISDIR(inode_in->i_mode) || S_ISDIR(inode_out->i_mode))
 		return -EISDIR;
 	if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode))
@@ -1884,7 +1887,7 @@ loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,
 		return ret;
 
 	ret = file_in->f_op->remap_file_range(file_in, pos_in,
-			file_out, pos_out, len, 0);
+			file_out, pos_out, len, remap_flags);
 	if (ret < 0)
 		return ret;
 
@@ -1895,12 +1898,14 @@ loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,
 EXPORT_SYMBOL(do_clone_file_range);
 
 loff_t vfs_clone_file_range(struct file *file_in, loff_t pos_in,
-			    struct file *file_out, loff_t pos_out, loff_t len)
+			    struct file *file_out, loff_t pos_out,
+			    loff_t len, unsigned int remap_flags)
 {
 	loff_t ret;
 
 	file_start_write(file_out);
-	ret = do_clone_file_range(file_in, pos_in, file_out, pos_out, len);
+	ret = do_clone_file_range(file_in, pos_in, file_out, pos_out, len,
+				  remap_flags);
 	file_end_write(file_out);
 
 	return ret;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index c72d8c3c065a..1c5e55d2a67d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1848,10 +1848,10 @@ extern int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
 					 unsigned int remap_flags);
 extern loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,
 				  struct file *file_out, loff_t pos_out,
-				  loff_t len);
+				  loff_t len, unsigned int remap_flags);
 extern loff_t vfs_clone_file_range(struct file *file_in, loff_t pos_in,
 				   struct file *file_out, loff_t pos_out,
-				   loff_t len);
+				   loff_t len, unsigned int remap_flags);
 extern int vfs_dedupe_file_range_compare(struct inode *src, loff_t srcoff,
 					 struct inode *dest, loff_t destoff,
 					 loff_t len, bool *is_same);

  parent reply	other threads:[~2018-10-21 16:16 UTC|newest]

Thread overview: 83+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-21 16:15 [PATCH v6 00/28] fs: fixes for serious clone/dedupe problems Darrick J. Wong
2018-10-21 16:15 ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:15 ` [PATCH 01/28] vfs: vfs_clone_file_prep_inodes should return EINVAL for a clone from beyond EOF Darrick J. Wong
2018-10-21 16:15   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:15 ` [PATCH 02/28] vfs: check file ranges before cloning files Darrick J. Wong
2018-10-21 16:15   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:15 ` [PATCH 03/28] vfs: exit early from zero length remap operations Darrick J. Wong
2018-10-21 16:15   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:15 ` [PATCH 04/28] vfs: strengthen checking of file range inputs to generic_remap_checks Darrick J. Wong
2018-10-21 16:15   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:15 ` [PATCH 05/28] vfs: avoid problematic remapping requests into partial EOF block Darrick J. Wong
2018-10-21 16:15   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:15   ` Darrick J. Wong
2018-10-21 16:15 ` [PATCH 06/28] vfs: skip zero-length dedupe requests Darrick J. Wong
2018-10-21 16:15   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:15 ` [PATCH 07/28] vfs: rename vfs_clone_file_prep to be more descriptive Darrick J. Wong
2018-10-21 16:15   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:15 ` [PATCH 08/28] vfs: rename clone_verify_area to remap_verify_area Darrick J. Wong
2018-10-21 16:15   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:16 ` [PATCH 09/28] vfs: combine the clone and dedupe into a single remap_file_range Darrick J. Wong
2018-10-21 16:16   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:16 ` [PATCH 10/28] vfs: pass remap flags to generic_remap_file_range_prep Darrick J. Wong
2018-10-21 16:16   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:16 ` [PATCH 11/28] vfs: pass remap flags to generic_remap_checks Darrick J. Wong
2018-10-21 16:16   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:16   ` Darrick J. Wong
2018-10-21 16:16 ` [PATCH 12/28] vfs: remap helper should update destination inode metadata Darrick J. Wong
2018-10-21 16:16   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:16 ` [PATCH 13/28] vfs: make remap_file_range functions take and return bytes completed Darrick J. Wong
2018-10-21 16:16   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:16 ` Darrick J. Wong [this message]
2018-10-21 16:16   ` [Ocfs2-devel] [PATCH 14/28] vfs: plumb remap flags through the vfs clone functions Darrick J. Wong
2018-10-21 16:16 ` [PATCH 15/28] vfs: plumb remap flags through the vfs dedupe functions Darrick J. Wong
2018-10-21 16:16   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:16 ` [PATCH 16/28] vfs: enable remap callers that can handle short operations Darrick J. Wong
2018-10-21 16:16   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:17 ` [PATCH 17/28] vfs: hide file range comparison function Darrick J. Wong
2018-10-21 16:17   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:17   ` Darrick J. Wong
2018-10-21 16:17 ` [PATCH 18/28] vfs: clean up generic_remap_file_range_prep return value Darrick J. Wong
2018-10-21 16:17   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:17   ` Darrick J. Wong
2018-10-21 16:17 ` [PATCH 19/28] ocfs2: truncate page cache for clone destination file before remapping Darrick J. Wong
2018-10-21 16:17   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:17 ` [PATCH 20/28] ocfs2: fix pagecache truncation prior to reflink Darrick J. Wong
2018-10-21 16:17   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:17 ` [PATCH 21/28] ocfs2: support partial clone range and dedupe range Darrick J. Wong
2018-10-21 16:17   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:17 ` [PATCH 22/28] ocfs2: remove ocfs2_reflink_remap_range Darrick J. Wong
2018-10-21 16:17   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:17 ` [PATCH 23/28] xfs: fix pagecache truncation prior to reflink Darrick J. Wong
2018-10-21 16:17   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:17   ` Darrick J. Wong
2018-10-21 16:17 ` [PATCH 24/28] xfs: clean up xfs_reflink_remap_blocks call site Darrick J. Wong
2018-10-21 16:17   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-22  2:11   ` Dave Chinner
2018-10-22  2:11     ` [Ocfs2-devel] " Dave Chinner
2018-10-21 16:17 ` [PATCH 25/28] xfs: support returning partial reflink results Darrick J. Wong
2018-10-21 16:17   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:17   ` Darrick J. Wong
2018-10-22  2:14   ` Dave Chinner
2018-10-22  2:14     ` [Ocfs2-devel] " Dave Chinner
2018-10-21 16:18 ` [PATCH 26/28] xfs: remove redundant remap partial EOF block checks Darrick J. Wong
2018-10-21 16:18   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-21 16:18 ` [PATCH 27/28] xfs: remove xfs_reflink_remap_range Darrick J. Wong
2018-10-21 16:18   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-22  2:17   ` Dave Chinner
2018-10-22  2:17     ` [Ocfs2-devel] " Dave Chinner
2018-10-21 16:18 ` [PATCH 28/28] xfs: remove [cm]time update from reflink calls Darrick J. Wong
2018-10-21 16:18   ` [Ocfs2-devel] " Darrick J. Wong
2018-10-22  2:18   ` Dave Chinner
2018-10-22  2:18     ` [Ocfs2-devel] " Dave Chinner
2018-10-22  2:21 ` [PATCH v6 00/28] fs: fixes for serious clone/dedupe problems Dave Chinner
2018-10-22  2:21   ` [Ocfs2-devel] " Dave Chinner
2018-10-22  4:37   ` Dave Chinner
2018-10-22  4:37     ` [Ocfs2-devel] " Dave Chinner
2018-10-22  4:52     ` Al Viro
2018-10-22  4:52       ` [Ocfs2-devel] " Al Viro
2018-10-22  5:08       ` Dave Chinner
2018-10-22  5:08         ` [Ocfs2-devel] " Dave Chinner
2018-10-22  5:42         ` Amir Goldstein
2018-10-22  6:55           ` Dave Chinner
2018-10-22  6:55             ` [Ocfs2-devel] " Dave Chinner

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