buytenh@gnu.org said:
> Is there any particular reason we need a global errno in the kernel at
> all? (which, by the way, doesn't seem to be subject to any kind of
> locking)
As far as I've been able to tell, no.
> It makes life for User Mode Linux somewhat more complicated
> than it could be, and it generally just seems a bad idea.
Yeah. In order for -fno-common to not blow up the UML build (because of the
clash between libc errno and kernel errno), I had to add -Derrno=kernel_errno
to all the kernel file compiles. It would be nice to get rid of that wart.
> Referenced patch deletes all mention of a global errno from the
> kernel
Awesome. This definitely needs to happen. If no one spots any breakage,
send it in...
> and fixes up callers where necessary.
I did some grepping and the only problem I noticed was UML's execve (heh)
converting a -errno return to a -1.
Jeff
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This archive was generated by hypermail 2b29 : Mon Dec 31 2001 - 21:00:23 EST