Richard Yao 36811b4430 Detect kernels that honor gfp flags passed to vmalloc() ... zfsonlinux/spl@2092cf68d8 used PF_MEMALLOC to workaround a bug in the Linux kernel where allocations did not honor the gfp flags passed to vmalloc(). Unfortunately, PF_MEMALLOC has the side effect of permitting allocations to allocate pages outside of ZONE_NORMAL. This has been observed to result in the depletion of ZONE_DMA32. A kernel patch is available in the Gentoo bug tracker for this issue. https://bugs.gentoo.org/show_bug.cgi?id=416685 This negates any benefit PF_MEMALLOC provides, so we introduce an autotools check to disable the use of PF_MEMALLOC on systems with patched kernels. Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #126		2012-07-11 11:44:27 -07:00
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spl	Detect kernels that honor gfp flags passed to vmalloc()	2012-07-11 11:44:27 -07:00
splat	Linux 3.4 compat, __clear_close_on_exec replaces FD_CLR	2012-06-13 16:18:51 -07:00
.gitignore	sun-misc-gitignore	2010-01-08 09:37:54 -08:00
Makefile.in	Fix make distclean for --with-config=user	2012-01-17 10:06:00 -08:00