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From: Christoph Hellwig <hch@lst.de>
To: viro@zeniv.linux.org.uk
Cc: arve@android.com, riandrews@android.com,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 04/16] fs: move kernel_read to fs/read_write.c
Date: Wed, 30 Aug 2017 16:59:55 +0200	[thread overview]
Message-ID: <20170830150007.3953-5-hch@lst.de> (raw)
In-Reply-To: <20170830150007.3953-1-hch@lst.de>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/exec.c       | 17 -----------------
 fs/read_write.c | 16 ++++++++++++++++
 2 files changed, 16 insertions(+), 17 deletions(-)

diff --git a/fs/exec.c b/fs/exec.c
index 62175cbcc801..8adcc5eaa175 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -885,23 +885,6 @@ struct file *open_exec(const char *name)
 }
 EXPORT_SYMBOL(open_exec);
 
-int kernel_read(struct file *file, loff_t offset,
-		char *addr, unsigned long count)
-{
-	mm_segment_t old_fs;
-	loff_t pos = offset;
-	int result;
-
-	old_fs = get_fs();
-	set_fs(get_ds());
-	/* The cast to a user pointer is valid due to the set_fs() */
-	result = vfs_read(file, (void __user *)addr, count, &pos);
-	set_fs(old_fs);
-	return result;
-}
-
-EXPORT_SYMBOL(kernel_read);
-
 int kernel_read_file(struct file *file, void **buf, loff_t *size,
 		     loff_t max_size, enum kernel_read_file_id id)
 {
diff --git a/fs/read_write.c b/fs/read_write.c
index 417dbe199505..1ea862bc7efd 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -415,6 +415,22 @@ ssize_t __vfs_read(struct file *file, char __user *buf, size_t count,
 }
 EXPORT_SYMBOL(__vfs_read);
 
+int kernel_read(struct file *file, loff_t offset, char *addr,
+		unsigned long count)
+{
+	mm_segment_t old_fs;
+	loff_t pos = offset;
+	int result;
+
+	old_fs = get_fs();
+	set_fs(get_ds());
+	/* The cast to a user pointer is valid due to the set_fs() */
+	result = vfs_read(file, (void __user *)addr, count, &pos);
+	set_fs(old_fs);
+	return result;
+}
+EXPORT_SYMBOL(kernel_read);
+
 ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)
 {
 	ssize_t ret;
-- 
2.11.0

  parent reply	other threads:[~2017-08-30 15:00 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-30 14:59 switch in-kernel read/write calls to kernel_read/write Christoph Hellwig
2017-08-30 14:59 ` [PATCH 01/16] ashmem: switch to ->read_iter Christoph Hellwig
2017-08-30 15:28   ` Al Viro
2017-09-01 10:20     ` Christoph Hellwig
2017-08-30 14:59 ` [PATCH 02/16] autofs4: switch autofs4_write to __kernel_write Christoph Hellwig
2017-08-30 15:30   ` Al Viro
2017-09-01 10:22     ` Christoph Hellwig
2017-08-30 14:59 ` [PATCH 03/16] fs: move kernel_write to fs/read_write.c Christoph Hellwig
2017-08-30 14:59 ` Christoph Hellwig [this message]
2017-08-30 14:59 ` [PATCH 05/16] fs: fix kernel_read prototype Christoph Hellwig
2017-08-30 15:37   ` Al Viro
2017-09-01 10:37     ` Christoph Hellwig
2017-08-30 14:59 ` [PATCH 06/16] fs: fix kernel_write prototype Christoph Hellwig
2017-08-30 15:39   ` Al Viro
2017-09-01 10:40     ` Christoph Hellwig
2017-08-30 14:59 ` [PATCH 07/16] serial2002: switch serial2002_tty_write to kernel_{read/write} Christoph Hellwig
2017-08-30 14:59 ` [PATCH 08/16] mm/nommu: switch do_mmap_private to kernel_read Christoph Hellwig
2017-08-30 15:41   ` Al Viro
2017-09-01 10:41     ` Christoph Hellwig
2017-08-30 15:00 ` [PATCH 09/16] net/9p: switch p9_fd_read to kernel_write Christoph Hellwig
2017-08-30 15:00 ` [PATCH 10/16] btrfs: switch write_buf " Christoph Hellwig
2017-08-30 15:35   ` Nikolay Borisov
2017-08-30 15:00 ` [PATCH 11/16] mconsole: switch to kernel_read Christoph Hellwig
2017-08-30 15:00 ` [PATCH 12/16] gadget/f_mass_storage: stop messing with the address limit Christoph Hellwig
2017-08-30 15:00 ` [PATCH 13/16] lustre: switch to kernel_write Christoph Hellwig
2017-08-30 15:00 ` [PATCH 14/16] fs: unexport __vfs_read/__vfs_write Christoph Hellwig
2017-08-30 15:00 ` [PATCH 15/16] fs: unexport vfs_read and vfs_write Christoph Hellwig
2017-08-30 15:00 ` [PATCH 16/16] fs: unexport vfs_readv and vfs_writev Christoph Hellwig

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