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authorAl Viro <viro@zeniv.linux.org.uk>2013-03-31 15:18:19 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2013-04-09 14:13:31 -0400
commita69755b187749e7cc020e17127a54f395aea4eaa (patch)
treea7988421dfa30432362eb9cc7cec59099f487896 /arch/xtensa
parent78846ce66d3e273a6937fddfd6752b3074c82e62 (diff)
xtensa simdisk: switch to proc_create_data()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/xtensa')
-rw-r--r--arch/xtensa/platforms/iss/simdisk.c36
1 files changed, 23 insertions, 13 deletions
diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c
index f58ffc3b68a..47ccef7839c 100644
--- a/arch/xtensa/platforms/iss/simdisk.c
+++ b/arch/xtensa/platforms/iss/simdisk.c
@@ -214,20 +214,27 @@ static int simdisk_detach(struct simdisk *dev)
return err;
}
-static int proc_read_simdisk(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static ssize_t proc_read_simdisk(struct file *file, char __user *buf,
+ size_t size, loff_t *ppos)
{
- int len;
- struct simdisk *dev = (struct simdisk *) data;
- len = sprintf(page, "%s\n", dev->filename ? dev->filename : "");
- return len;
+ struct simdisk *dev = PDE(file_inode(file))->data;
+ char *s = dev->filename;
+ if (s) {
+ ssize_t n = simple_read_from_buffer(buf, size, ppos,
+ s, strlen(s));
+ if (n < 0)
+ return n;
+ buf += n;
+ size -= n;
+ }
+ return simple_read_from_buffer(buf, size, ppos, "\n", 1);
}
-static int proc_write_simdisk(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t proc_write_simdisk(struct file *file, const char __user *buf,
+ size_t size, loff_t *ppos)
{
char *tmp = kmalloc(count + 1, GFP_KERNEL);
- struct simdisk *dev = (struct simdisk *) data;
+ struct simdisk *dev = PDE(file_inode(file))->data;
int err;
if (tmp == NULL)
@@ -256,6 +263,12 @@ out_free:
return err;
}
+static const struct file_operations fops = {
+ .read = proc_read_simdisk,
+ .write = proc_write_simdisk,
+ .llseek = default_llseek,
+};
+
static int __init simdisk_setup(struct simdisk *dev, int which,
struct proc_dir_entry *procdir)
{
@@ -289,10 +302,7 @@ static int __init simdisk_setup(struct simdisk *dev, int which,
set_capacity(dev->gd, 0);
add_disk(dev->gd);
- dev->procfile = create_proc_entry(tmp, 0644, procdir);
- dev->procfile->data = dev;
- dev->procfile->read_proc = proc_read_simdisk;
- dev->procfile->write_proc = proc_write_simdisk;
+ dev->procfile = proc_create_data(tmp, 0644, procdir, &fops, dev);
return 0;
out_alloc_disk: