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...ome code, so I came up with the new one. Comments and suggestions are welcome! v1->v2: 1. Added more comments and fix return values suggested by Andrew Morton 2. fix a race condition pointed out by Yan Zheng initial post: http://marc.info/?l=linux-fsdevel&m=129222493406353&w=2 Thanks, Shaohua -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

...unified the way to handle single and multiple cross-CPU function calls. Now only one interrupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <akpm at linux-foundation.org> Cc: Shaohua Li <shli at kernel.org> Cc: Peter Zijlstra <a.p.zijlstra at chello.nl> Cc: Ingo Molnar <mingo at elte.hu> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Jiri Kosina <trivial at kernel.org> Cc: Thomas Gleixner <tglx at linutronix.de> Cc: "H. Peter Anvin&quot...

...unified the way to handle single and multiple cross-CPU function calls. Now only one interrupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <akpm at linux-foundation.org> Cc: Shaohua Li <shli at kernel.org> Cc: Peter Zijlstra <a.p.zijlstra at chello.nl> Cc: Ingo Molnar <mingo at elte.hu> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Jiri Kosina <trivial at kernel.org> Cc: Thomas Gleixner <tglx at linutronix.de> Cc: "H. Peter Anvin&quot...

...unified the way to handle single and multiple cross-CPU function calls. Now only one interrupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <akpm at linux-foundation.org> Cc: Shaohua Li <shli at kernel.org> Cc: Peter Zijlstra <a.p.zijlstra at chello.nl> Cc: Ingo Molnar <mingo at elte.hu> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Jiri Kosina <trivial at kernel.org> Cc: Thomas Gleixner <tglx at linutronix.de> Cc: "H. Peter Anvin&quot...

Hi folks, This version added REQ_FLUSH and REQ_FUA support as suggested by Christoph and rebased against latest linus's tree. Jens, could you please consider picking up the dependencies 1/4 and 2/4 in your tree. Thanks! This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk

Hi folks, This version added REQ_FLUSH and REQ_FUA support as suggested by Christoph and rebased against latest linus's tree. Jens, could you please consider picking up the dependencies 1/4 and 2/4 in your tree. Thanks! This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk

...unified the way to handle single and multiple cross-CPU function calls. Now only one intterupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <akpm at linux-foundation.org> Cc: Shaohua Li <shli at kernel.org> Cc: Peter Zijlstra <a.p.zijlstra at chello.nl> Cc: Ingo Molnar <mingo at elte.hu> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Jiri Kosina <trivial at kernel.org> Cc: Thomas Gleixner <tglx at linutronix.de> Cc: "H. Peter Anvin&quot...

...unified the way to handle single and multiple cross-CPU function calls. Now only one intterupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <akpm at linux-foundation.org> Cc: Shaohua Li <shli at kernel.org> Cc: Peter Zijlstra <a.p.zijlstra at chello.nl> Cc: Ingo Molnar <mingo at elte.hu> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Jiri Kosina <trivial at kernel.org> Cc: Thomas Gleixner <tglx at linutronix.de> Cc: "H. Peter Anvin&quot...

...unified the way to handle single and multiple cross-CPU function calls. Now only one intterupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <akpm at linux-foundation.org> Cc: Shaohua Li <shli at kernel.org> Cc: Peter Zijlstra <a.p.zijlstra at chello.nl> Cc: Ingo Molnar <mingo at elte.hu> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Jiri Kosina <trivial at kernel.org> Cc: Thomas Gleixner <tglx at linutronix.de> Cc: "H. Peter Anvin&quot...

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16% latency improvement for sequential read/write, random read/write respectively. Asias He (3): block: Introduce __blk_segment_map_sg() helper block: Add blk_bio_map_sg() helper virtio-blk: Add bio-based IO path for virtio-blk

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16% latency improvement for sequential read/write, random read/write respectively. Asias He (3): block: Introduce __blk_segment_map_sg() helper block: Add blk_bio_map_sg() helper virtio-blk: Add bio-based IO path for virtio-blk

...-0,0 +1,152 @@ +/* drivers/acpi/sleep/power.c - PM core functionality for Xen + * + * Copyrights from Linux side: + * Copyright (c) 2000-2003 Patrick Mochel + * Copyright (C) 2001-2003 Pavel Machek <pavel@suse.cz> + * Copyright (c) 2003 Open Source Development Lab + * Copyright (c) 2004 David Shaohua Li <shaohua.li@intel.com> + * Copyright (c) 2005 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> + * + * Slimmed with Xen specific support. + */ + +#include <asm/io.h> +#define CONFIG_ACPI_SLEEP +#include <asm/acpi.h> +#include <xen/acpi.h> +#include <xen/errn...

...unified the way to handle single and multiple cross-CPU function calls. Now only one interrupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <akpm at linux-foundation.org> Cc: Shaohua Li <shli at kernel.org> Cc: Peter Zijlstra <a.p.zijlstra at chello.nl> Cc: Ingo Molnar <mingo at elte.hu> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Jiri Kosina <trivial at kernel.org> Cc: Thomas Gleixner <tglx at linutronix.de> Cc: "H. Peter Anvin&quot...

...unified the way to handle single and multiple cross-CPU function calls. Now only one interrupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <akpm at linux-foundation.org> Cc: Shaohua Li <shli at kernel.org> Cc: Peter Zijlstra <a.p.zijlstra at chello.nl> Cc: Ingo Molnar <mingo at elte.hu> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Jiri Kosina <trivial at kernel.org> Cc: Thomas Gleixner <tglx at linutronix.de> Cc: "H. Peter Anvin&quot...

...unified the way to handle single and multiple cross-CPU function calls. Now only one interrupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <akpm at linux-foundation.org> Cc: Shaohua Li <shli at kernel.org> Cc: Peter Zijlstra <a.p.zijlstra at chello.nl> Cc: Ingo Molnar <mingo at elte.hu> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Jiri Kosina <trivial at kernel.org> Cc: Thomas Gleixner <tglx at linutronix.de> Cc: "H. Peter Anvin&quot...

...b/xen/arch/x86/acpi/power.c Wed Feb 14 14:59:58 2007 +0800 @@ -0,0 +1,149 @@ +/* drivers/acpi/sleep/power.c - PM core functionality for Xen + * + * Copyrights from Linux side: + * Copyright (c) 2000-2003 Patrick Mochel + * Copyright (c) 2003 Open Source Development Lab + * Copyright (c) 2004 David Shaohua Li <shaohua.li@intel.com> + * Copyright (c) 2005 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> + * + * Slimmed with Xen specific support. + */ + +#include <asm/io.h> +#define CONFIG_ACPI_SLEEP +#include <asm/acpi.h> +#include <xen/acpi.h> +#include <xen/errn...

...unified the way to handle single and multiple cross-CPU function calls. Now only one intterupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <akpm at linux-foundation.org> Cc: Shaohua Li <shli at kernel.org> Cc: Peter Zijlstra <a.p.zijlstra at chello.nl> Cc: Ingo Molnar <mingo at elte.hu> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Jiri Kosina <trivial at kernel.org> Cc: Thomas Gleixner <tglx at linutronix.de> Cc: "H. Peter Anvin&quot...

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk device With bio-based IO path, sequential read/write, random read/write IOPS boost : 28%, 24%, 21%, 16% Latency improvement: 32%, 17%, 21%, 16% 2) Fusion IO device With bio-based IO path, sequential

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk device With bio-based IO path, sequential read/write, random read/write IOPS boost : 28%, 24%, 21%, 16% Latency improvement: 32%, 17%, 21%, 16% 2) Fusion IO device With bio-based IO path, sequential

...unified the way to handle single and multiple cross-CPU function calls. Now only one intterupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <akpm at linux-foundation.org> Cc: Shaohua Li <shli at kernel.org> Cc: Peter Zijlstra <a.p.zijlstra at chello.nl> Cc: Ingo Molnar <mingo at elte.hu> Cc: Steven Rostedt <rostedt at goodmis.org> Cc: Jiri Kosina <trivial at kernel.org> Cc: Thomas Gleixner <tglx at linutronix.de> Cc: "H. Peter Anvin&quot...