- Sep 23, 2009
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Rusty Russell authored
VIRTIO_F_NOTIFY_ON_EMPTY indicates to the Guest that we will hit them with an interrupt every time the xmit queue is emptied. Because it results in lots of tx interrupts, modern Guests probably don't want it, so let's only force it when they accept the option. Signed-off-by:Rusty Russell <rusty@rustcorp.com.au>
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Xiao Guangrong authored
We can use alloc_page() instead of get_zeroed_page() and virt_to_page() Signed-off-by:
Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by:
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Rusty Russell authored
We still assume the Guest and Host have the same PAGE_OFFSET settings, but now we don't assume 0xC0000000. Signed-off-by: -
Rusty Russell authored
If we're building a pte, we can use simple assigment; only use set_pte etc. when we're actually going to use that destination as a PTE. I don't know that we'll ever run under Xen, but it's neater. And use set_pte/set_pmd rather than assuming native_ versions, even though that's probably true for most people. (Includes compile fix by Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>) Signed-off-by: -
Rusty Russell authored
We used to defer it, so lockdep was happy. We now init lockdep early anyway, so just do it after that. Signed-off-by: -
Christoph Hellwig authored
Recent qemu has added a VIRTIO_BLK_F_FLUSH flag to advertise that the virtual disk has a volatile write cache that needs to be flushed. In case we see this feature implement tell the Linux block layer about the fact and use the new VIRTIO_BLK_T_FLUSH to flush the cache when required. This allows for an correct and simple implementation of write barriers. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Fernando Luis Vazquez Cao authored
Virtio IDs are spread all over the tree which makes assigning new IDs bothersome. Putting them together should make the process less error-prone. Signed-off-by:
Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Signed-off-by:
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Fernando Luis Vazquez Cao authored
VIRTIO_ID_9P is already defined in include/linux/virtio_9p.h so use that definition instead. Signed-off-by:
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Rusty Russell authored
This API change means that virtio_net can tell how much capacity remains for buffers. It's necessarily fuzzy, since VIRTIO_RING_F_INDIRECT_DESC means we can fit any number of descriptors in one, *if* we can kmalloc. Signed-off-by: -
Rusty Russell authored
1) Rename vp_request_vectors to vp_request_msix_vectors, and take non-MSI-X case out to caller. 2) Comment weird pci_enable_msix API 3) Rename vp_find_vq to setup_vq. 4) Fix spaces to tabs 5) Make nvectors calc internal to vp_try_to_find_vqs() 6) Rename vector to msix_vector for more clarity. Signed-off-by:
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- Sep 21, 2009
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git://git.kernel.org/pub/scm/linux/kernel/git/jaswinder/linux-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/jaswinder/linux-2.6: includecheck fix: x86, cpu/common.c includecheck fix: kernel/trace, ring_buffer.c includecheck fix: include/linux, ftrace.h includecheck fix: include/linux, page_cgroup.h includecheck fix: include/linux, aio.h includecheck fix: include/drm, drm_memory.h includecheck fix: include/acpi, acpi_bus.h includecheck fix: drivers/xen, evtchn.c includecheck fix: drivers/video, vgacon.c includecheck fix: drivers/scsi, ibmvscsi.c includecheck fix: drivers/scsi, libfcoe.c includecheck fix: x86, shadow.c includecheck fix: x86, traps.c includecheck fix: um, helper.c includecheck fix: s390, sys_s390.c
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Linus Torvalds authored
Ingo points out that I screwed up when merging the 'timers-for-linus' branch in commit a03fdb76 . A bit too much copy-and-pasting caused the end result to have an extraneous 'return' in the middle of an expression. That was obviously bogus. Blush. Reported-by-with-patch: Ingo Molnar <mingo@elte.hu> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://aeryn.fluff.org.uk/bjdooks/linuxLinus Torvalds authored
* 'next-i2c' of git://aeryn.fluff.org.uk/bjdooks/linux: [PATCH] i2c-imx: make bus available early i2c-mv64xxx: correct mv64xxx_i2c_intr() return type
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: Driver-Core: extend devnode callbacks to provide permissions
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (79 commits) USB serial: update the console driver usb-serial: straighten out serial_open usb-serial: add missing tests and debug lines usb-serial: rename subroutines usb-serial: fix termios initialization logic usb-serial: acquire references when a new tty is installed usb-serial: change logic of serial lookups usb-serial: put subroutines in logical order usb-serial: change referencing of port and serial structures tty: Char: mxser, use THRE for ASPP_OQUEUE ioctl tty: Char: mxser, add support for CP112UL uartlite: support shared interrupt lines tty: USB: serial/mct_u232, fix tty refcnt tty: riscom8, fix tty refcnt tty: riscom8, fix shutdown declaration TTY: fix typos tty: Power: fix suspend vt regression tty: vt: use printk_once tty: handle VT specific compat ioctls in vt driver n_tty: move echoctl check and clean up logic ...
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Linus Torvalds authored
Merge branch 'perfcounters-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perfcounters-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (58 commits) perf_counter: Fix perf_copy_attr() pointer arithmetic perf utils: Use a define for the maximum length of a trace event perf: Add timechart help text and add timechart to "perf help" tracing, x86, cpuidle: Move the end point of a C state in the power tracer perf utils: Be consistent about minimum text size in the svghelper perf timechart: Add "perf timechart record" perf: Add the timechart tool perf: Add a SVG helper library file tracing, perf: Convert the power tracer into an event tracer perf: Add a sample_event type to the event_union perf: Allow perf utilities to have "callback" options without arguments perf: Store trace event name/id pairs in perf.data perf: Add a timestamp to fork events sched_clock: Make it NMI safe perf_counter: Fix up swcounter throttling x86, perf_counter, bts: Optimize BTS overflow handling perf sched: Add --input=file option to builtin-sched.c perf trace: Sample timestamp and cpu when using record flag perf tools: Increase MAX_EVENT_LENGTH perf tools: Fix memory leak in read_ftrace_printk() ...
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- Sep 20, 2009
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Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: arch/x86/kernel/cpu/common.c: linux/smp.h is included more than once. Signed-off-by:Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <1252087783.6385.10.camel@ht.satnam>
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Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: kernel/trace/ring_buffer.c: trace.h is included more than once. Signed-off-by: -
Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: include/linux/ftrace.h: linux/sched.h is included more than once. Signed-off-by: -
Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: include/linux/page_cgroup.h: linux/swap.h is included more than once. Signed-off-by:
Paul Menage <menage@google.com>
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Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: include/linux/aio.h: linux/aio_abi.h is included more than once. Signed-off-by: -
Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: include/drm/drm_memory.h: linux/vmalloc.h is included more than once. Signed-off-by:
Dave Airlie <airlied@redhat.com>
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Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: include/acpi/acpi_bus.h: linux/device.h is included more than once. Signed-off-by:
Len Brown <len.brown@intel.com>
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Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: drivers/xen/evtchn.c: linux/errno.h is included more than once. Signed-off-by:
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
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Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: drivers/video/console/vgacon.c: linux/slab.h is included more than once. Signed-off-by: -
Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: drivers/scsi/ibmvscsi/ibmvscsi.c: asm/firmware.h is included more than once. Signed-off-by:
Brian King <brking@linux.vnet.ibm.com>
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Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: drivers/scsi/fcoe/libfcoe.c: linux/netdevice.h is included more than once. Signed-off-by: -
Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: arch/x86/mm/kmemcheck/shadow.c: linux/module.h is included more than once. Signed-off-by: -
Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: arch/x86/kernel/traps.c: asm/traps.h is included more than once. Signed-off-by: -
Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: arch/um/os-Linux/helper.c: linux/limits.h is included more than once. Signed-off-by:
WANG Cong <xiyou.wangcong@gmail.com>
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Jaswinder Singh Rajput authored
fix the following 'make includecheck' warning: arch/s390/kernel/sys_s390.c: linux/syscalls.h is included more than once. Signed-off-by: -
Wolfram Sang authored
As I2C is used by PMICs also, make the busses available early via subsys_initcall(). Signed-off-by:
Wolfram Sang <w.sang@pengutronix.de> Signed-off-by:
Ben Dooks <ben-linux@fluff.org>
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Mikael Pettersson authored
The mv64xxx_i2c_intr() irq handler in drivers/i2c/busses/i2c-mv64xxx.c is declared as returning 'int', resulting in this compile-time warning: drivers/i2c/busses/i2c-mv64xxx.c: In function 'mv64xxx_i2c_probe': drivers/i2c/busses/i2c-mv64xxx.c:540: warning: passing argument 2 of 'request_irq' from incompatible pointer type Fix: correct the return type to 'irqreturn_t'. Signed-off-by:
Mikael Pettersson <mikpe@it.uu.se> Signed-off-by:
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Alan Stern authored
This patch (as1292) modifies the USB serial console driver, to make it compatible with the recent changes to the USB serial core. The most important change is that serial->disc_mutex now has to be unlocked following a successful call to usb_serial_get_by_index(). Other less notable changes include: Use the requested port number instead of port 0 always. Prevent the serial device from being autosuspended. Use the ASYNCB_INITIALIZED flag bit to indicate when the port hardware has been initialized. In spite of these changes, there's no question that the USB serial console code is still a big hack. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Alan Stern authored
This patch (as1291) removes a bunch of code from serial_open(), things that were rendered unnecessary by earlier patches. A missing spinlock is added to protect port->port.count, which needs to be incremented even if the open fails but not if the tty has gotten a hangup. The test for whether the hardware has been initialized, based on the use count, is replaced by a more transparent test of the ASYNCB_INITIALIZED bit in the port flags. Signed-off-by:
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Alan Stern authored
This patch (as1290) adds some missing tests. serial_down() isn't supposed to do anything if the hardware hasn't been initialized, and serial_close() isn't supposed to do anything if the tty has gotten a hangup (because serial_hangup() takes care of shutting down the hardware). The patch also updates and adds a few debugging lines. Signed-off-by:
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Alan Stern authored
This patch (as1289) renames serial_do_down() to serial_down() and serial_do_free() to serial_release(). It also adds a missing call to tty_shutdown() in serial_release(). Signed-off-by:
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Alan Stern authored
This patch (as1288) fixes the initialization logic in serial_install(). A new tty always needs to have a termios initialized no matter what, not just in the case where the lower driver will override the termios settings. Signed-off-by:
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Alan Stern authored
This patch (as1287) makes serial_install() be reponsible for acquiring references to the usb_serial structure and the driver module when a tty is first used. This is more sensible than having serial_open() do it, because a tty can be opened many times whereas it is installed only once, when it is created. (Not to mention that these actions are reversed when the tty is released, not when it is closed.) Finally, it is at install time that the TTY core takes its own reference to the usb_serial module, so it is only fitting that we should act the same way in regard to the lower-level serial driver. Signed-off-by:
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Alan Stern authored
This patch (as1286) changes usb_serial_get_by_index(). Now the routine will check whether the serial device has been disconnected; if it has then the return value will be NULL. If the device hasn't been disconnected then the routine will return with serial->disc_mutex held, so that the caller can use the structure without fear of racing against driver unloads. This permits the scope of table_mutex in destroy_serial() to be reduced. Instead of protecting the entire function, it suffices to protect the part that actually uses serial_table[], i.e., the call to return_serial(). There's no longer any danger of the refcount being incremented after it reaches 0 (which was the reason for having the large scope previously), because it can't reach 0 until the serial device has been disconnected. Also, the patch makes serial_install() check that serial is non-NULL before attempting to use it. Signed-off-by:
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