ChangeSet@1.1574, 2005-03-11 13:56:03-03:00, andrea@suse.de [PATCH] Write throttling should not take free highmem into account I've got a fix for you on 2.4. I got reports of stalls with heavy writes on 2.4. There was a mistake in nr_free_buffer_pages. That function is definitely meant _not_ to take highmem into account (dirty cache cannot spread over highmem in 2.4 [even when on top of fs]). For unknown reasons it was actually taking highmem into account. The code was obviously meant to not take into account see the GFP_USER and zonelist, except it wasn't using the zonelist. That is a severe problem because there will be no write throttling at all, and no bdflush wakeup either. This should fix it, though my compiler fails to compile 2.4, so it's not immediate to verify it. If any problem showup I'll post a followup. This is a noop for all systems <800M (1G shouldn't be noticeable either). This is why most people can't notice. Signed-off-by: Andrea Arcangeli ChangeSet@1.1573, 2005-03-10 17:59:22-03:00, cw@f00f.org [PATCH] early boot code references check_acpi_pci() For x86 (and friends) ACPI_BOOT=y (always) and this code wants to call check_acpi_pci(). Signed-off-by: Chris Wedgwood ===== arch/i386/kernel/earlyquirk.c 1.1 vs edited ===== ChangeSet@1.1572, 2005-03-10 07:51:36-03:00, willy@w.ods.org [PATCH] acpi.h needs the recent acpi merge in 2.4-BK broke compilation of a few external patches (eg: iptable_string), because it declares check_acpi_pci() as void __init, while linux/init.h is not included. Here is a trivial patch which solves the problem. ChangeSet@1.1571, 2005-03-09 11:43:51-03:00, marcelo@logos.cnet Early ACPI PCI quirk depends on CONFIG_X86_IO_APIC TAG: v2.4.30-pre3