use symbolic constants in generic lseek code

Convert magic numbers to SEEK_* values from fs.h

Signed-off-by: Chris Snook <csnook@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/read_write.c b/fs/read_write.c
index 1f8dc37..0642a16 100644 (file)
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -37,10 +37,10 @@ loff_t generic_file_llseek(struct file *file, loff_t offset, int origin)
 
        mutex_lock(&inode->i_mutex);
        switch (origin) {
-               case 2:
+               case SEEK_END:
                        offset += inode->i_size;
                        break;
-               case 1:
+               case SEEK_CUR:
                        offset += file->f_pos;
        }
        retval = -EINVAL;
@@ -63,10 +63,10 @@ loff_t remote_llseek(struct file *file, loff_t offset, int origin)
 
        lock_kernel();
        switch (origin) {
-               case 2:
+               case SEEK_END:
                        offset += i_size_read(file->f_path.dentry->d_inode);
                        break;
-               case 1:
+               case SEEK_CUR:
                        offset += file->f_pos;
        }
        retval = -EINVAL;
@@ -94,10 +94,10 @@ loff_t default_llseek(struct file *file, loff_t offset, int origin)
 
        lock_kernel();
        switch (origin) {
-               case 2:
+               case SEEK_END:
                        offset += i_size_read(file->f_path.dentry->d_inode);
                        break;
-               case 1:
+               case SEEK_CUR:
                        offset += file->f_pos;
        }
        retval = -EINVAL;