nfs: BUG_ON in nfs_follow_mountpoint

[mv-sheeva.git] / fs / nfs / file.c

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 43164fe86069617004c7ccc139588d9d450c7547..3ddb00433f4f92782ec2388baef404e9dabdc5c2 100644 (file)
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -128,9 +128,7 @@ nfs_file_open(struct inode *inode, struct file *filp)
                return res;
 
        nfs_inc_stats(inode, NFSIOS_VFSOPEN);
-       lock_kernel();
        res = nfs_open(inode, filp);
-       unlock_kernel();
        return res;
 }
 
@@ -190,13 +188,16 @@ static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)
        /* origin == SEEK_END => we must revalidate the cached file length */
        if (origin == SEEK_END) {
                struct inode *inode = filp->f_mapping->host;
+
                int retval = nfs_revalidate_file_size(inode, filp);
                if (retval < 0)
                        return (loff_t)retval;
-       }
-       lock_kernel();  /* BKL needed? */
-       loff = generic_file_llseek_unlocked(filp, offset, origin);
-       unlock_kernel();
+
+               spin_lock(&inode->i_lock);
+               loff = generic_file_llseek_unlocked(filp, offset, origin);
+               spin_unlock(&inode->i_lock);
+       } else
+               loff = generic_file_llseek_unlocked(filp, offset, origin);
        return loff;
 }
 
@@ -398,9 +399,7 @@ static int nfs_write_end(struct file *file, struct address_space *mapping,
                        zero_user_segment(page, pglen, PAGE_CACHE_SIZE);
        }
 
-       lock_kernel();
        status = nfs_updatepage(file, page, offset, copied);
-       unlock_kernel();
 
        unlock_page(page);
        page_cache_release(page);