Mark the sunrpc cache control file nonseekable, and

remove the run-time tests for it.

diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index e84acd07f82286f79d107e229bed6cd877eb594a..bb54be85152326ff4d840810090e63d1fa3605bf 100644 (file)
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -582,9 +582,6 @@ cache_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos)
        struct cache_detail *cd = PDE(filp->f_dentry->d_inode)->data;
        int err;
 
-       if (ppos != &filp->f_pos)
-               return -ESPIPE;
-
        if (count == 0)
                return 0;
 
@@ -662,9 +659,6 @@ cache_write(struct file *filp, const char __user *buf, size_t count,
        int err;
        struct cache_detail *cd = PDE(filp->f_dentry->d_inode)->data;
 
-       if (ppos != &filp->f_pos)
-               return -ESPIPE;
-
        if (count == 0)
                return 0;
        if (count >= sizeof(write_buf))
@@ -751,6 +745,7 @@ cache_open(struct inode *inode, struct file *filp)
 {
        struct cache_reader *rp = NULL;
 
+       nonseekable_open(inode, filp);
        if (filp->f_mode & FMODE_READ) {
                struct cache_detail *cd = PDE(inode)->data;
 
@@ -1212,6 +1207,7 @@ static ssize_t write_flush(struct file * file, const char __user * buf,
 }
 
 static struct file_operations cache_flush_operations = {
+       .open           = nonseekable_open,
        .read           = read_flush,
        .write          = write_flush,
 };