> +++
> linux-2.6.11-rc4-bme0.06-bm0.01-at0.01-cc0.01-co0.01-xa0.01-ro0.01/fs/ext2/ioctl.c
> 2005-02-19 06:32:05 +0100
> @@ -29,7 +29,8 @@ int ext2_ioctl (struct inode * inode, st
> case EXT2_IOC_SETFLAGS: {
> unsigned int oldflags;
>
> - if (IS_RDONLY(inode))
> + if (IS_RDONLY(inode) ||
> + (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
doing this in every filesystem ->ioctl is a really bad idea. We need to
add common handling for ext2-style file attributes first.
Also please add a file_readonly() helper - when introduced it only checks
IS_RDONLY(file->f_dentry->d_inode) and once you add per-mount flags it
only needs to be added in a single place. Actually probably a lowelevel
one taking inode,vfsmount and wrappers for a struct file * or
struct nameidata * which would cover most of the cases.
-
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