On Wed, Jun 28, 2006 at 10:40:07AM -0600, Erik Frederiksen wrote:
> from include/asm-mips/errno.h
> #define EDQUOT 1133 /* Quota exceeded */
> Hi everyone. I'm kind of confused as to why the value for EDQUOT is so
> large on MIPS. It seems like no other architectures have errnos that go
> that high.
History; the errno values were inheritted from earlier MIPS operating
systems at a time when that seemed to be a good idea because Linux was
the new kid in town.
> The reason I'm interested is that functions that use ERR_PTR() to return
> error codes in pointers cannot return this error code without IS_ERR()
> thinking that the pointer is valid. In my case, it caused an alignment
> exception in the XFS open call when quota has been exceeded. This takes
> place in the linux-mips 2.6.14 kernel.
> I think that the XFS code has changed enough that this bug isn't in
> newer versions, though I'm not sure about that. I've supplied a patch
> that addresses this situation by changing the threshold used by IS_ERR
> if EMAXERRNO is defined and greater than 1000. Looking forward to your
The value 1000 has been choosen pretty arbitrarily I think. Not sure if
a complicated solution is actually needed.
You may try raising that number to a higher value and posting the patch to
email@example.com to see if other have an issue with such a