diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/file.c | 10 | ||||
| -rw-r--r-- | fs/xfs/xfs_file.c | 9 |
2 files changed, 12 insertions, 7 deletions
diff --git a/fs/ext4/file.c b/fs/ext4/file.c index f4a24a46245e..70b0438dbc94 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -371,15 +371,17 @@ static const struct vm_operations_struct ext4_file_vm_ops = { static int ext4_file_mmap(struct file *file, struct vm_area_struct *vma) { struct inode *inode = file->f_mapping->host; + struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); + struct dax_device *dax_dev = sbi->s_daxdev; - if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) + if (unlikely(ext4_forced_shutdown(sbi))) return -EIO; /* - * We don't support synchronous mappings for non-DAX files. At least - * until someone comes with a sensible use case. + * We don't support synchronous mappings for non-DAX files and + * for DAX files if underneath dax_device is not synchronous. */ - if (!IS_DAX(file_inode(file)) && (vma->vm_flags & VM_SYNC)) + if (!daxdev_mapping_supported(vma, dax_dev)) return -EOPNOTSUPP; file_accessed(file); diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index e93bacbd49ae..28101bbc0b78 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1197,11 +1197,14 @@ xfs_file_mmap( struct file *filp, struct vm_area_struct *vma) { + struct dax_device *dax_dev; + + dax_dev = xfs_find_daxdev_for_inode(file_inode(filp)); /* - * We don't support synchronous mappings for non-DAX files. At least - * until someone comes with a sensible use case. + * We don't support synchronous mappings for non-DAX files and + * for DAX files if underneath dax_device is not synchronous. */ - if (!IS_DAX(file_inode(filp)) && (vma->vm_flags & VM_SYNC)) + if (!daxdev_mapping_supported(vma, dax_dev)) return -EOPNOTSUPP; file_accessed(filp); |