On Sun, May 25, 2014 at 01:04:09PM -0700, Linus Torvalds wrote:
>
> The fact is, I think xfs is just buggy. Returning 38 (ENOSYS) is
> totally insane. "No such system call"? Somebody is on some bad bad
> drugs. Not that the mount_block_root() loop and error handling might
> not be a good thing to perhaps tweak _too_, but at the very least your
> patch means that now it no longer prints out the error number at all.
There's only a single instance of ENOSYS in fs/xfs/xfs_mount.c:
/*
* We must be able to do sector-sized and sector-aligned IO.
*/
if (sector_size > sbp->sb_sectsize) {
if (loud)
xfs_warn(mp, "device supports %u byte sectors (not %u)",
sector_size, sbp->sb_sectsize);
error = ENOSYS;
goto release_buf;
}
Plamen, does changing the ENOSYS to EINVAL above fix things for you?
> Anyway, I'm also not seeing why that xfs error would be new to 3.14,
> though.. Adding the XFS people to the cc.
If I had to guess, commit daba5427d is new to 3.14, and it might
explain the change in behavior.
Cheers,
- Ted
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