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2007-10-11JFS: fix bio-related build breakageJeff Garzik1-6/+1
Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-11[SKY2]: status polling loop (post merge)Stephen Hemminger1-24/+17
Handle the corner case where budget is exhausted correctly. And save unnecessary read of index register. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11[NET]: Fix NAPI completion handling in some drivers.David S. Miller3-42/+82
In order for the list handling in net_rx_action() to be correct, drivers must follow certain rules as stated by this comment in net_rx_action(): /* Drivers must not modify the NAPI state if they * consume the entire weight. In such cases this code * still "owns" the NAPI instance and therefore can * move the instance around on the list at-will. */ A few drivers do not do this because they mix the budget checks with reading hardware state, resulting in crashes like the one reported by takano@axe-inc.co.jp. BNX2 and TG3 are taken care of here, SKY2 fix is from Stephen Hemminger. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11[TCP]: Limit processing lost_retrans loop to work-to-do casesIlpo Järvinen3-3/+15
This addition of lost_retrans_low to tcp_sock might be unnecessary, it's not clear how often lost_retrans worker is executed when there wasn't work to do. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11[TCP]: Fix lost_retrans loop vs fastpath problemsIlpo Järvinen1-15/+22
Detection implemented with lost_retrans must work also when fastpath is taken, yet most of the queue is skipped including (very likely) those retransmitted skb's we're interested in. This problem appeared when the hints got added, which removed a need to always walk over the whole write queue head. Therefore decicion for the lost_retrans worker loop entry must be separated from the sacktag processing more than it was necessary before. It turns out to be problematic to optimize the worker loop very heavily because ack_seqs of skb may have a number of discontinuity points. Maybe similar approach as currently is implemented could be attempted but that's becoming more and more complex because the trend is towards less skb walking in sacktag marker. Trying a simple work until all rexmitted skbs heve been processed approach. Maybe after(highest_sack_end_seq, tp->high_seq) checking is not sufficiently accurate and causes entry too often in no-work-to-do cases. Since that's not known, I've separated solution to that from this patch. Noticed because of report against a related problem from TAKANO Ryousei <takano@axe-inc.co.jp>. He also provided a patch to that part of the problem. This patch includes solution to it (though this patch has to use somewhat different placement). TAKANO's description and patch is available here: http://marc.info/?l=linux-netdev&m=119149311913288&w=2 ...In short, TAKANO's problem is that end_seq the loop is using not necessarily the largest SACK block's end_seq because the current ACK may still have higher SACK blocks which are later by the loop. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11[TCP]: No need to re-count fackets_out/sacked_out at RTOIlpo Järvinen1-10/+16
Both sacked_out and fackets_out are directly known from how parameter. Since fackets_out is accurate, there's no need for recounting (sacked_out was previously unnecessarily counted in the loop anyway). Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11[TCP]: Extract tcp_match_queue_to_sack from sacktag codeIlpo Järvinen1-19/+35
This is necessary for upcoming DSACK bugfix. Reduces sacktag length which is not very sad thing at all... :-) Notice that there's a need to handle out-of-mem at caller's place. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11[TCP]: Kill almost unused variable pcount from sacktagIlpo Järvinen1-6/+3
It's on the way for future cutting of that function. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11[TCP]: Fix mark_head_lost to ignore R-bit when trying to mark LIlpo Järvinen1-1/+1
This condition (plain R) can arise at least in recovery that is triggered after tcp_undo_loss. There isn't any reason why they should not be marked as lost, not marking makes in_flight estimator to return too large values. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11[TCP]: Add bytes_acked (ABC) clearing to FRTO tooIlpo Järvinen1-0/+2
I was reading tcp_enter_loss while looking for Cedric's bug and noticed bytes_acked adjustment is missing from FRTO side. Since bytes_acked will only be used in tcp_cong_avoid, I think it's safe to assume RTO would be spurious. During FRTO cwnd will be not controlled by tcp_cong_avoid and if FRTO calls for conventional recovery, cwnd is adjusted and the result of wrong assumption is cleared from bytes_acked. If RTO was in fact spurious, we did normal ABC already and can continue without any additional adjustments. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11[MIPS] tlbex.c: Cleanup __init usage.Franck Bui-Huu1-48/+48
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] WRPPMC serial support move to platform deviceYoichi Yuasa3-35/+81
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] R1: Fix hazard barriers to make kernels work on R2 also.Ralf Baechle1-1/+53
Tested with Malta; inflates malta_defconfig by 3932 bytes. Ideally there should be additional configuration to allow getting rid of this overhead but that would be too much complexity at this stage of the release cycle. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] VPE: reimplement ELF loader.Ralf Baechle1-34/+11
Loading ELF binaries based on the section table is totally wrong. This still leaves the other fat bug of referencing symbols in an executable unfixed, so people better don't run strip on their binaries ... As added bonus the new loader is also 23 lines shorter. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] cleanup WRPPMC include filesYoichi Yuasa4-35/+12
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Add BUG_ON assertion for attempt to run kernel on the wrong CPU type.Franck Bui-Huu1-0/+8
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] SMP: Use ISO C struct initializer for local structs.Ralf Baechle1-10/+13
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] SMP: Kill useless casts.Ralf Baechle1-7/+7
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Kill num_online_cpus() loops.Ralf Baechle4-18/+27
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] SMP: Implement smp_call_function_mask().Ralf Baechle3-40/+30
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Make facility to convert CPU types to strings generally available.Ralf Baechle4-77/+97
So far /proc/cpuinfo has been the only user but human readable processor name are more useful than that for proc. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Convert list of CPU types from #define to enum.Ralf Baechle1-70/+49
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Optimize get_unaligned / put_unaligned implementations.Ralf Baechle1-6/+21
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] checkfiles: Fix "need space after that ','" errors.Ralf Baechle121-1943/+1951
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Fix "no space between function name and open parenthesis" warnings.Ralf Baechle104-845/+845
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Allow hardwiring of the CPU type to a single type for optimization.Ralf Baechle20-86/+89
This saves a few k on systems which only ever ship with a single CPU type. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] tlbex: Size optimize code by declaring a few functions inline.Ralf Baechle1-4/+4
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] pg-r4k.c: Dump the generated codeMaciej W. Rozycki1-0/+20
Dump the generated code for clear/copy page calls like it is done for TLB fault handlers. Useful for debugging. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Cobalt: Remove cobalt_machine_power_off()Yoichi Yuasa2-11/+1
It's same as cobalt_machine_halt(). Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Cobalt: Move reset port definition to arch/mips/cobalt/reset.cYoichi Yuasa2-9/+6
It's only used in arch/mips/cobalt/reset.c. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Cobalt: Move UART base definition to arch/mips/cobalt/console.cYoichi Yuasa2-7/+4
They're only used in arch/mips/cobalt/console.c. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Cobalt: Move PCI definitions to arch/mips/pci/fixup-cobalt.c.Yoichi Yuasa2-24/+19
These PCI definitions are only used in arch/mips/pci/fixup-cobalt.c. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>