diff options
Diffstat (limited to 'block/fops.c')
| -rw-r--r-- | block/fops.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/block/fops.c b/block/fops.c index 0d714d050a46..9871bd6052b4 100644 --- a/block/fops.c +++ b/block/fops.c @@ -478,7 +478,7 @@ blk_mode_t file_to_blk_mode(struct file *file) mode |= BLK_OPEN_READ; if (file->f_mode & FMODE_WRITE) mode |= BLK_OPEN_WRITE; - if (file->f_mode & FMODE_EXCL) + if (file->private_data) mode |= BLK_OPEN_EXCL; if (file->f_flags & O_NDELAY) mode |= BLK_OPEN_NDELAY; @@ -507,12 +507,15 @@ static int blkdev_open(struct inode *inode, struct file *filp) filp->f_flags |= O_LARGEFILE; filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC; + /* + * Use the file private data to store the holder for exclusive openes. + * file_to_blk_mode relies on it being present to set BLK_OPEN_EXCL. + */ if (filp->f_flags & O_EXCL) - filp->f_mode |= FMODE_EXCL; + filp->private_data = filp; bdev = blkdev_get_by_dev(inode->i_rdev, file_to_blk_mode(filp), - (filp->f_mode & FMODE_EXCL) ? filp : NULL, - NULL); + filp->private_data, NULL); if (IS_ERR(bdev)) return PTR_ERR(bdev); @@ -523,8 +526,7 @@ static int blkdev_open(struct inode *inode, struct file *filp) static int blkdev_release(struct inode *inode, struct file *filp) { - blkdev_put(I_BDEV(filp->f_mapping->host), - (filp->f_mode & FMODE_EXCL) ? filp : NULL); + blkdev_put(I_BDEV(filp->f_mapping->host), filp->private_data); return 0; } |