* Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > On Fri, Nov 18, 2016 at 02:34:07PM -0500, David Miller wrote: > > From: Babu Moger <babu.moger@xxxxxxxxxx> > > Date: Tue, 27 Sep 2016 12:33:26 -0700 > > > > > These patches limit the static allocations for lockdep data structures > > > used for debugging locking correctness. For sparc, all the kernel's code, > > > data, and bss, must have locked translations in the TLB so that we don't > > > get TLB misses on kernel code and data. Current sparc chips have 8 TLB > > > entries available that may be locked down, and with a 4mb page size, > > > this gives a maximum of 32MB. With PROVE_LOCKING we could go over this > > > limit and cause system boot-up problems. These patches limit the static > > > allocations so that everything fits in current required size limit. > > > > > > patch 1 : Adds new config parameter CONFIG_PROVE_LOCKING_SMALL > > > Patch 2 : Adjusts the sizes based on the new config parameter > > > > > > v2-> v3: > > > Some more comments from Sam Ravnborg and Peter Zijlstra. > > > Defined PROVE_LOCKING_SMALL as invisible and moved the selection to > > > arch/sparc/Kconfig. > > > > > > v1-> v2: > > > As suggested by Peter Zijlstra, keeping the default as is. > > > Introduced new config variable CONFIG_PROVE_LOCKING_SMALL > > > to handle sparc specific case. > > > > > > v0: > > > Initial revision. > > > > Series applied, thanks. > > Heh, I was only waiting for an ACK from you, but this works too :-) Works for me too - as usual davem is fantastic in terms of efficient patch flow :) Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
