orangefs: sanitize ->llseek()

a) open files can't have NULL inodes
b) it's SEEK_END, not ORANGEFS_SEEK_END; no need to get cute.
c) make_bad_inode() on lseek()?

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>

2 files changed, 3 insertions, 10 deletions

diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c
index 63e6a10ab13d..cb6a164b2718 100644
--- a/fs/orangefs/file.c
+++ b/fs/orangefs/file.c
@@ -652,14 +652,9 @@ static int orangefs_fsync(struct file *file,
 static loff_t orangefs_file_llseek(struct file *file, loff_t offset, int origin)
 {
         int ret = -EINVAL;
-        struct inode *inode = file->f_path.dentry->d_inode;
+        struct inode *inode = file_inode(file);
 
-        if (!inode) {
-                gossip_err("orangefs_file_llseek: invalid inode (NULL)\n");
-                return ret;
-        }
-
-        if (origin == ORANGEFS_SEEK_END) {
+        if (origin == SEEK_END) {
                 /*
                  * revalidate the inode's file size.
                  * NOTE: We are only interested in file size here,
@@ -674,7 +669,6 @@ static loff_t orangefs_file_llseek(struct file *file, loff_t offset, int origin)
                                      __FILE__,
                                      __func__,
                                      __LINE__);
-                        orangefs_make_bad_inode(inode);
                         return ret;
                 }
         }
@@ -684,7 +678,7 @@ static loff_t orangefs_file_llseek(struct file *file, loff_t offset, int origin)
                      " | inode size is %lu\n",
                      (long)offset,
                      origin,
-                     (unsigned long)file->f_path.dentry->d_inode->i_size);
+                     (unsigned long)i_size_read(inode));
 
         return generic_file_llseek(file, offset, origin);
 }
diff --git a/fs/orangefs/orangefs-kernel.h b/fs/orangefs/orangefs-kernel.h
index 5832168106de..db258d2ccc6a 100644
--- a/fs/orangefs/orangefs-kernel.h
+++ b/fs/orangefs/orangefs-kernel.h
@@ -70,7 +70,6 @@
 #define ORANGEFS_DEVREQ_MAGIC             0x20030529
 #define ORANGEFS_LINK_MAX                 0x000000FF
 #define ORANGEFS_PURGE_RETRY_COUNT     0x00000005
-#define ORANGEFS_SEEK_END              0x00000002
 #define ORANGEFS_MAX_NUM_OPTIONS          0x00000004
 #define ORANGEFS_MAX_MOUNT_OPT_LEN        0x00000080
 #define ORANGEFS_MAX_FSKEY_LEN            64