The patch titled
uml: use simple_write_to_buffer()
has been added to the -mm tree. Its filename is
uml-use-simple_write_to_buffer.patch
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------------------------------------------------------
Subject: uml: use simple_write_to_buffer()
From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Simplify write file operation for mmapper by using
simple_write_to_buffer().
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/um/drivers/mmapper_kern.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff -puN arch/um/drivers/mmapper_kern.c~uml-use-simple_write_to_buffer arch/um/drivers/mmapper_kern.c
--- a/arch/um/drivers/mmapper_kern.c~uml-use-simple_write_to_buffer
+++ a/arch/um/drivers/mmapper_kern.c
@@ -37,13 +37,7 @@ static ssize_t mmapper_write(struct file
if (*ppos > mmapper_size)
return -EINVAL;
- if (count > mmapper_size - *ppos)
- count = mmapper_size - *ppos;
-
- if (copy_from_user(&v_buf[*ppos], buf, count))
- return -EFAULT;
-
- return count;
+ return simple_write_to_buffer(v_buf, mmapper_size, ppos, buf, count);
}
static long mmapper_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
_
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
uml-use-simple_write_to_buffer.patch
bitops-merge-little-and-big-endian-definisions-in-asm-generic-bitops-leh.patch
bitops-rename-generic-little-endian-bitops-functions.patch
s390-introduce-little-endian-bitops.patch
arm-introduce-little-endian-bitops.patch
m68k-introduce-little-endian-bitops.patch
bitops-introduce-config_generic_find_le_bit.patch
m68knommu-introduce-little-endian-bitops.patch
m68knommu-introduce-little-endian-bitops-build-fix.patch
bitops-introduce-little-endian-bitops-for-most-architectures.patch
rds-stop-including-asm-generic-bitops-leh.patch
kvm-stop-including-asm-generic-bitops-leh.patch
asm-generic-use-little-endian-bitops.patch
ext3-use-little-endian-bitops.patch
ext4-use-little-endian-bitops.patch
ocfs2-use-little-endian-bitops.patch
nilfs2-use-little-endian-bitops.patch
reiserfs-use-little-endian-bitops.patch
udf-use-little-endian-bitops.patch
ufs-use-little-endian-bitops.patch
md-use-little-endian-bit-operations.patch
dm-use-little-endian-bit-operations.patch
bitops-remove-ext2-non-atomic-bitops-from-asm-bitopsh.patch
m68k-remove-inline-asm-from-minix_find_first_zero_bit.patch
bitops-remove-minix-bitops-from-asm-bitopsh.patch
bitops-use-find_first_zero_bit-instead-of-find_next_zero_bitaddr-size-0.patch
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