Hi,
Is it intended that non-gpl file systems cannot use functions like i_uid_read() and i_uid_write() (introduced by Eric Biederman in 3.5 kernel)?
They resolve to the below (in include/linux/fs.h):
static inline uid_t i_uid_read(const struct inode *inode)
{
return from_kuid(&init_user_ns, inode->i_uid);
}
static inline void i_uid_write(struct inode *inode, uid_t uid)
{
inode->i_uid = make_kuid(&init_user_ns, uid);
}
And both from_kuid() and make_kuid() are EXPORT_SYMBOL() so they are fine but the problem is that init_user_ns is EXPORT_SYMBOL_GPL() and because i_uid_read() and i_uid_write() are static inline it causes them to be unusable from non-gpl kernel modules...
Same thing applies to i_gid_read() and i_gid_write().
These seem pretty fundamental calls that a non-gpl file system should be able to call, no?
Best regards,
Anton
--
Anton Altaparmakov <anton at tuxera.com> (replace at with @)
Lead in File System Development, Tuxera Inc., http://www.tuxera.com/
Linux NTFS maintainer
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