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authorAkinobu Mita <akinobu.mita@gmail.com>2007-05-09 05:33:33 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-09 15:30:49 -0400
commit85badbdf5120d246ce2bb3f1a7689a805f9c9006 (patch)
tree0c406f24c1533dc8dcaf322751b05e7b8bcd5d23 /kernel/configs.c
parent92f4c701aad794de9e4cf7341d0a486aed027c46 (diff)
use simple_read_from_buffer in kernel/
Cleanup using simple_read_from_buffer() for /dev/cpuset/tasks and /proc/config.gz. Cc: Paul Jackson <pj@sgi.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/configs.c')
-rw-r--r--kernel/configs.c15
1 files changed, 3 insertions, 12 deletions
diff --git a/kernel/configs.c b/kernel/configs.c
index 8fa1fb28f8a7..e84d3f9c6c7b 100644
--- a/kernel/configs.c
+++ b/kernel/configs.c
@@ -61,18 +61,9 @@ static ssize_t
61ikconfig_read_current(struct file *file, char __user *buf, 61ikconfig_read_current(struct file *file, char __user *buf,
62 size_t len, loff_t * offset) 62 size_t len, loff_t * offset)
63{ 63{
64 loff_t pos = *offset; 64 return simple_read_from_buffer(buf, len, offset,
65 ssize_t count; 65 kernel_config_data + MAGIC_SIZE,
66 66 kernel_config_data_size);
67 if (pos >= kernel_config_data_size)
68 return 0;
69
70 count = min(len, (size_t)(kernel_config_data_size - pos));
71 if (copy_to_user(buf, kernel_config_data + MAGIC_SIZE + pos, count))
72 return -EFAULT;
73
74 *offset += count;
75 return count;
76} 67}
77 68
78static const struct file_operations ikconfig_file_ops = { 69static const struct file_operations ikconfig_file_ops = {