[PATCH 1/2] kill FMODE_NDELAY_NOW

[linux.git] / fs / block_dev.c

diff --git a/fs/block_dev.c b/fs/block_dev.c
index db831efbdbbdcc0d2b1298af4e3055916357fee2..99e0ae1a4c789fff59aae0e32207755e38fa7e41 100644 (file)
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1135,12 +1135,15 @@ static int blkdev_open(struct inode * inode, struct file * filp)
        if (res)
                return res;
 
-       if (!(filp->f_mode & FMODE_EXCL))
-               return 0;
+       if (filp->f_mode & FMODE_EXCL) {
+               res = bd_claim(bdev, filp);
+               if (res)
+                       goto out_blkdev_put;
+       }
 
-       if (!(res = bd_claim(bdev, filp)))
-               return 0;
+       return 0;
 
+ out_blkdev_put:
        blkdev_put(bdev, filp->f_mode);
        return res;
 }
@@ -1203,8 +1206,16 @@ static long block_ioctl(struct file *file, unsigned cmd, unsigned long arg)
 {
        struct block_device *bdev = I_BDEV(file->f_mapping->host);
        fmode_t mode = file->f_mode;
+
+       /*
+        * O_NDELAY can be altered using fcntl(.., F_SETFL, ..), so we have
+        * to updated it before every ioctl.
+        */
        if (file->f_flags & O_NDELAY)
-               mode |= FMODE_NDELAY_NOW;
+               mode |= FMODE_NDELAY;
+       else
+               mode &= ~FMODE_NDELAY;
+
        return blkdev_ioctl(bdev, mode, cmd, arg);
 }