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* UHCI: improved debugging checks for the frame listAlan Stern2007-02-07
| | | | | | | | | | | | | This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: race on disconnect in mdc800Oliver Neukum2007-02-07
| | | | | | | | | I overlooked one. Setting the flag and killing the URBs must be under the lock so that no URB is submitted after usb_kill_urb() Signed-off-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: add binary API to usbmonPete Zaitcev2007-02-07
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new, "binary" API in addition to the old, text API usbmon had before. The new API allows for less CPU use, and it allows to capture all data from a packet where old API only captured 32 bytes at most. There are some limitations and conditions to this, e.g. in case someone constructs a URB with 1GB of data, it's not likely to be captured, because even the huge buffers of the new reader are finite. Nonetheless, I expect this new capability to capture all data for all real life scenarios. The downside is, a special user mode application is required where cat(1) worked before. I have sample code at http://people.redhat.com/zaitcev/linux/ and Paolo Abeni is working on patching libpcap. This patch was initially written by Paolo and later I tweaked it, and we had a little back-and-forth. So this is a jointly authored patch, but I am submitting this I am responsible for the bugs. Signed-off-by: Paolo Abeni <paolo.abeni@email.it> Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Add usb_endpoint_xfer_control to usb.hSarah Bailey2007-02-07
| | | | | | | | | | Added a function to check if an endpoint is a control endpoint. There were similar functions for bulk, interrupt, and isoc, but not for control endpoints. Signed-off-by: Sarah Bailey <saharabeara@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB Gadget file_storage.c: remove unnecessary castsJohn Daiker2007-02-07
| | | | | | | | | | | Went looking through some usb stuff and found some unnecessary casts in file_storage.c This is part of the KernelJanitors TODO list. Signed-off-by: John Daiker <daikerjohn@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Bugfix for aircable: Add module and name to usb_serial_driverJohannes Hölzl2007-02-07
| | | | | | | | | | | | | While adding the dynamic-id support to usb serial I found a small bug in the air cable driver: Adds module and name information to the usb_serial_driver instance of aircable. So the aircable driver is correctly shown under /sys/bus/usb-serial/drivers/aircable and has the module link. Signed-off-by: Johannes Hölzl <johannes.hoelzl@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB serial: add driver pointer to all usb-serial driversJohannes Hölzl2007-02-07
| | | | | | | | | | | | | | Every usb serial driver should have a pointer to the corresponding usb driver. So the usb serial core can add a new id not only to the usb serial driver, but also to the usb driver. Also the usb drivers of ark3116, mos7720 and mos7840 missed the flag no_dynamic_id=1. This is added now. Signed-off-by: Johannes Hölzl <johannes.hoelzl@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB serial: add dynamic id support to usb-serial coreGreg Kroah-Hartman2007-02-07
| | | | | | | | | | | | | | | | | | Thanks to Johannes Hölzl <johannes.hoelzl@gmx.de> for fixing a few things and getting it all working properly. This adds support for dynamic usb ids to the usb serial core. The file "new_id" will show up under the usb serial driver, not the usb driver associated with the usb-serial driver (yeah, it can be a bit confusing at first glance...) This patch also modifies the USB core to allow the usb-serial core to reuse much of the dynamic id logic. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Johannes Hölzl <johannes.hoelzl@gmx.de>
* ohci: Add support for OHCI controller on the of_platform busSylvain Munaut2007-02-07
| | | | | | | | | | | PPC embedded systems can have a ohci controller builtin. In the new model, it will end up as a driver on the of_platform bus, this patches takes care of them. Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* ohci: Rework bus glue integration to allow several at onceSylvain Munaut2007-02-07
| | | | | | | | | | | | | | | | | The previous model had the module_init & module_exit function in the bus glue .c files themselves. That's a problem if several glues need to be selected at once and the driver is built has module. This case is quite common in embedded system where you want to handle both the integrated ohci controller and some extra controller on PCI. The ohci-hcd.c file now provide the module_init & module_exit and appropriate driver registering/unregistering is done conditionally, using #ifdefs. Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* rndis_host learns ActiveSync basicsOle Andre Vadla Ravnas2007-02-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Windows Mobile 5 based devices described as supporting "ActiveSync": - Speak RNDIS but lack the CDC and union descriptors. This patch updates the cdc ethernet code to fake ACM descriptors we need. - Require RNDIS_MSG_QUERY messages to include a buffer of the size the response should generate. This patch updates the rndis host code to pass this will-be-ignored data. The resulting RNDIS host code has been reported to work with several WM5 based devices. (Note that a fancier patch is available at synce.sf.net.) Some bugfixes, affecting not just ActiveSync: (a) when cleaning up after RNDS init fails, scrub the second interface just like cdc_ether does, so disconnect won't oops. (b) handle peripherals that use the pad-to-end-of-packet option; some devices can't talk to us if that option doesn't work. (c) when choosing configurations, don't forget about an RNDIS config just because the RNDIS driver is dynamically linked. Cleanup, streamlining, bugfixes, Kconfig, and matching hub driver update. Also for paranoia's sake, refuse to talk to something that looks like a real modem instead of RNDIS. Signed-off-by: Ole Andre Vadla Ravnaas <oleavr@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ethernet gadget interop with MCCI Windows driverDavid Brownell2007-02-07
| | | | | | | | | | | | | | | | | | It turns out that minor tweaks to the "CDC Subset" support in the Ethernet gadget driver, just updating a config descriptor, let it be automagically recognized by a Windows driver supported by MCCI. This patch adds those descriptors, so systems using PXA 255 processors (like Gumstix etc) can interop with those commercial MS-Windows drivers. This is a Good Thing since Microsoft's RNDIS code has bugginess issues, which are unfortunately compounded by "won't fix" issues as well as "the published specs are incomplete and wrong" issues. Being able to talk to the MCCI driver gives Windows users another connectivity option. (MCCI also has CDC Ethernet drivers, which can help most non-PXA processors.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usbcore: remove unneeded error checkAlan Stern2007-02-07
| | | | | | | | | This patch (as830) removes some unnecessary error checking. According to the kerneldoc, schedule_work() can't fail. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: indicate active altsetting in proc/bus/usb/devices fileDavid Brownell2007-02-07
| | | | | | | | Update /proc/bus/usb/devices output to report active altsettings. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: devio.c add missing INIT_LIST_HEAD()Dan Carpenter2007-02-07
| | | | | | | | | | | It should hopefully fix the list corruption bug on: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=214402 Add a missing INIT_LIST_HEAD() Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mutexification of rio500Oliver Neukum2007-02-07
| | | | | | | | | this makes the rio500 misc usb driver use mutexes and turns uninterruptible sleep into interruptible sleep where the semantics are not affected. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Remove unneeded void * casts in idmouse.cTobias Klauser2007-02-07
| | | | | | | | | | | | The patch removes unneeded void * casts for the following (void *) pointers: - struct file: private_data The patch also contains some whitespace and coding style cleanups in the relevant areas. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: define USB_CLASS_MISC in <linux/usb/ch9.h>David Brownell2007-02-07
| | | | | | | | Add USB_CLASS_MISC to <linux/usb/ch9.h> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: <linux/usb_ch9.h> becomes <linux/usb/ch9.h>David Brownell2007-02-07
| | | | | | | | | This moves <linux/usb_ch9.h> to <linux/usb/ch9.h> to reduce some of the clutter of usb header files. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Fix EHCI warningBenjamin Herrenschmidt2007-02-07
| | | | | | | | | | This patch fixes a warning introduced by the big endian MMIO EHCI support patch on platforms that don't have readl_be/writel_be variants (though mostly harmless as those are called in an if (0) statement, but gcc still warns). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* USB: Fix OHCI warningBenjamin Herrenschmidt2007-02-07
| | | | | | | | | | | This patch fixes a warning introduces by the split endian OHCI support patch on platforms that don't have readl_be/writel_be variants (though mostly harmless as those are called in an if (0) statement, but gcc still warns). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Implement support for EHCI with big endian MMIOBenjamin Herrenschmidt2007-02-07
| | | | | | | | | | | | | | | | | | This patch implements supports for EHCI controllers whose MMIO registers are big endian and enables that functionality for the Toshiba SCC chip. It does _not_ add support for big endian in-memory data structures as this is not needed for that chip and I hope it will never be. The guts of the patch are to convert readl(...) to ehci_readl(ehci, ...) and similarly for register writes. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Implement support for "split" endian OHCIBenjamin Herrenschmidt2007-02-07
| | | | | | | | | | | | | | | This patch separates support for big endian MMIO register access and big endian descriptors in order to support the Toshiba SCC implementation which has big endian registers but little endian in-memory descriptors. It simplifies the access functions a bit in ohci.h while at it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Rework the OHCI quirk mecanism as suggested by DavidBenjamin Herrenschmidt2007-02-07
| | | | | | | | | | | | | | | | This patch applies David Brownell's suggestion for reworking the OHCI quirk mechanism via a table of PCI IDs. It adapts the existing quirks to use that mechanism. This also moves the quirks to reset() as suggested by the comment in there. This is necessary as we need to have the endian properly set before we try to init the controller. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: convert usb class devices to real devicesGreg Kroah-Hartman2007-02-07
| | | | | Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: move usb_device_class class devices to be real devicesGreg Kroah-Hartman2007-02-07
| | | | | | | | | This moves the usb class devices that control the usbfs nodes to show up in the proper place in the larger device tree. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: add EPIC support to the io_edgeport driverGreg Kroah-Hartman2007-02-07
| | | | | | | | | | | | | | | | | This patch adds EPiC support to the io_edgeport driver which adds support for a number of NCR printers: - NCR (Axiohm) 7401-K580 printer - NCR (TEC) 7401-K590 printer, 7402-K592 - NCR (TEC) 7167, 7168 printers - NCR (TEC) 7197, 7198, F306, F307, F309 printers - NCR (Axiohm) 7194 printer - NCR (Axiohm) 7158 printer and a few more. It is based on the 2.6.19 kernel. Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
* USB: unusual_devs.h for Sony floppyLuiz Fernando N. Capitulino2007-02-07
| | | | | | | | | | | | | | | | | | | | | This patch increases the range for 0x054c:0x002c devices to make the following Sony USB floppy to work: T: Bus=02 Lev=01 Prnt=01 Port=02 Cnt=02 Dev#= 6 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=054c ProdID=002c Rev=20.00 S: Manufacturer=SONY S: Product=USB Floppy C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 3 Cls=08(stor.) Sub=04 Prot=00 Driver=usb-storage E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=83(I) Atr=03(Int.) MxPS= 2 Ivl=127ms Signed-off-by: Marcelo Ricardo Leitner <mrl@mandriva.com> Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge branch 'for-linus' of ↵Linus Torvalds2007-02-07
|\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6: JFS: Remove incorrect kgdb define JFS: call io_schedule() instead of schedule() to avoid deadlock JFS: Add lockdep annotations JFS: Avoid BUG() on a damaged file system
| * JFS: Remove incorrect kgdb defineDave Kleikamp2007-01-26
| | | | | | | | | | | | | | | | | | | | | | jfs_debug.h uses an incorrect CONFIG_KERNEL_ASSERT ifdef to redefine the assert macro for kgdb use. I believe the code worked a long time ago, but today it's not a valid config option. Since I'm not aware of anybody interested in debugging jfs with kgdb, it should just be removed. Thanks to Robert P. J. Day for reporting this. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
| * JFS: call io_schedule() instead of schedule() to avoid deadlockDave Kleikamp2007-01-17
| | | | | | | | | | | | | | | | | | | | | | The introduction of Jens Axboe's explicit i/o plugging patches introduced a deadlock in jfs. This was caused by the process initiating I/O not unplugging the queue before waiting on the commit thread. The commit thread itself was waiting for that I/O to complete. Calling io_schedule() rather than schedule() unplugs the I/O queue avoiding the deadlock, and it appears to be the right function to call in any case. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
| * JFS: Add lockdep annotationsDave Kleikamp2007-01-09
| | | | | | | | | | | | Yeah, it's about time. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
| * JFS: Avoid BUG() on a damaged file systemDave Kleikamp2007-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Mon, 2006-12-18 at 19:51 +0100, Eric Sesterhenn wrote: > hi, > > while playing around with fsfuzzer, i got the following oops with jfs: > > [ 851.804875] BUG at fs/jfs/jfs_xtree.c:760 > assert(!BT_STACK_FULL(btstack)) > [ 851.805179] ------------[ cut here ]------------ > [ 851.805238] kernel BUG at fs/jfs/jfs_xtree.c:760! JFS should mark the superblock dirty and return an error rather than calling BUG(). Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmwLinus Torvalds2007-02-07
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (57 commits) [GFS2] make gfs2_writepages() static [GFS2] Unlock page on prepare_write try lock failure [GFS2] nfsd readdirplus assertion failure [DLM] fix softlockup in dlm_recv [DLM] zero new user lvbs [DLM/GFS2] indent help text [GFS2] Fix unlink deadlocks [GFS2] Put back semaphore to avoid umount problem [GFS2] more CURRENT_TIME_SEC [GFS2/DLM] fix GFS2 circular dependency [GFS2/DLM] use sysfs [GFS2] make lock_dlm drop_count tunable in sysfs [GFS2] increase default lock limit [GFS2] Fix list corruption in lops.c [GFS2] Fix recursive locking attempt with NFS [DLM] can miss clearing resend flag [DLM] saved dlm message can be dropped [DLM] Make sock_sem into a mutex [GFS2] Fix typo in glock.c [GFS2] use CURRENT_TIME_SEC instead of get_seconds in gfs2 ...
| * | [GFS2] make gfs2_writepages() staticAdrian Bunk2007-02-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Mon, Jan 29, 2007 at 08:45:28PM -0800, Andrew Morton wrote: >... > Changes since 2.6.20-rc6-mm2: >... > git-gfs2-nmw.patch >... > git trees >... This patch makes the needlessly global gfs2_writepages() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [GFS2] Unlock page on prepare_write try lock failureSteven Whitehouse2007-02-07
| | | | | | | | | | | | | | | | | | | | | | | | When the try lock of the glock failed in prepare_write we were incorrectly exiting this function with the page still locked. This was resulting in further I/O to this page hanging. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [GFS2] nfsd readdirplus assertion failureWendy Cheng2007-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Glock assertion failure found in '07 NFS connectathon. One of the NFSDs is doing a "readdirplus" procedure call. It passes the logic into gfs2_readdir() where it obtains its directory inode glock. This is then followed by filehandle construction that invokes lookup code. It hits the assertion failure while trying to obtain the inode glock again inside gfs2_drevalidate(). This patch bypasses the recursive glock call if caller already holds the lock. Signed-off-by: S. Wendy Cheng <wcheng@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [DLM] fix softlockup in dlm_recvPatrick Caulfield2007-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch stops the dlm_recv workqueue from busy-waiting when a node disconnects. This can cause soft lockup errors on debug systems and bad performance generally. Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [DLM] zero new user lvbsDavid Teigland2007-02-05
| | | | | | | | | | | | | | | | | | | | | A new lvb for a userland lock wasn't being initialized to zero. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [DLM/GFS2] indent help textRandy Dunlap2007-02-05
| | | | | | | | | | | | | | | | | | | | | Indent help text as expected. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [GFS2] Fix unlink deadlocksRussell Cattelan2007-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the glock acquisition to outside of the transactions. Lock odering must be preserved in order to prevent ABBA deadlocks. The current gfs2_change_nlink code would tries to grab the glock after having started a transaction and thus is holding the log lock. This is inconsistent with other code paths in gfs that grab the resource group glock prior to staring a tranactions. One problem with this fix is that the resource group lock is always grabbed now even if the inode still has ref count and can not be marked for unlink. Signed-off-by: Russell Cattelan <cattelan@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [GFS2] Put back semaphore to avoid umount problemSteven Whitehouse2007-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dave Teigland fixed this bug a while back, but I managed to mistakenly remove the semaphore during later development. It is required to avoid the list of inodes changing during an invalidate_inodes call. I have made it an rwsem since the read side will be taken frequently during normal filesystem operation. The write site will only happen during umount of the file system. Also the bug only triggers when using the DLM lock manager and only then under certain conditions as its timing related. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Cc: David Teigland <teigland@redhat.com>
| * | [GFS2] more CURRENT_TIME_SECEric Sandeen2007-02-05
| | | | | | | | | | | | | | | | | | | | | Whoops, quilt user error, missed this one in the previous patch. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [GFS2/DLM] fix GFS2 circular dependencyAdrian Bunk2007-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Sun, Jan 28, 2007 at 11:08:18AM +0100, Jiri Slaby wrote: > Andrew Morton napsal(a): > >Temporarily at > > > > http://userweb.kernel.org/~akpm/2.6.20-rc6-mm1/ > > Unable to select IPV6. Menuconfig doesn't offer it when INET is selected. > When it's not it appears in the menu, but after state change it gets away. > The same behaviour in xconfig, gconfig. > > $ mkdir ../a/tst > $ make O=../a/tst menuconfig > HOSTCC scripts/basic/fixdep > [...] > HOSTLD scripts/kconfig/mconf > scripts/kconfig/mconf arch/i386/Kconfig > Warning! Found recursive dependency: INET GFS2_FS_LOCKING_DLM SYSFS > OCFS2_FS INET > > Maybe this is the problem? Yes, patch below. > regards, cu Adrian <-- snip --> This patch fixes a circular dependency by letting GFS2_FS_LOCKING_DLM and DLM depend on instead of select SYSFS. Since SYSFS depends on EMBEDDED this change shouldn't cause any problems for users. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [GFS2/DLM] use sysfsRandy Dunlap2007-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With CONFIG_DLM=m, CONFIG_PROC_FS=n, and CONFIG_SYSFS=n, kernel build fails with: WARNING: "kernel_subsys" [fs/gfs2/locking/dlm/lock_dlm.ko] undefined! WARNING: "kernel_subsys" [fs/dlm/dlm.ko] undefined! WARNING: "kernel_subsys" [fs/configfs/configfs.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2 Since fs/dlm/lockspace.c and fs/gfs2/locking/dlm/sysfs.c use kernel_subsys, they should either DEPEND on it or SELECT it. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [GFS2] make lock_dlm drop_count tunable in sysfsDavid Teigland2007-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | We want to be able to change or disable the default drop_count (number at which the dlm asks gfs to limit the the number of locks it's holding). Add it to the collection of sysfs tunables for an fs. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [GFS2] increase default lock limitDavid Teigland2007-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Increase the number of locks at which point the dlm begins asking gfs to reduce its lock usage. The default value is largely arbitrary, but the current value of 50,000 ends up limiting performance unnecessarily for too many users. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [GFS2] Fix list corruption in lops.cSteven Whitehouse2007-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch below appears to fix the list corruption that we are seeing on occasion. Although the transaction structure is private to a single thread, when the queued structures are dismantled during an in-core commit, its possible for a different thread to be trying to add the same structure to another, new, transaction at the same time. To avoid this, this patch takes the log spinlock during this operation. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [GFS2] Fix recursive locking attempt with NFSSteven Whitehouse2007-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | In certain cases, its possible for NFS to call the lookup code while holding the glock (when doing a readdirplus operation) so we need to check for that and not try and lock the glock twice. This also fixes a typo in a previous NFS related GFS2 patch. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | [DLM] can miss clearing resend flagDavid Teigland2007-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A long, complicated sequence of events, beginning with the RESEND flag not being cleared on an lkb, can result in an unlock never completing. - lkb on waiters list for remote lookup - the remote node is both the dir node and the master node, so it optimizes the lookup into a request and sends a request reply back - the request reply is saved on the requestqueue to be processed after recovery - recovery runs dlm_recover_waiters_pre() which sets RESEND flag so the lookup will be resent after recovery - end of recovery: process_requestqueue takes saved request reply which removes the lkb off the waitesr list, _without_ clearing the RESEND flag - end of recovery: dlm_recover_waiters_post() doesn't do anything with the now completed lookup lkb (would usually clear RESEND) - later, the node unmounts, unlocks this lkb that still has RESEND flag set - the lkb is on the waiters list again, now for unlock, when recovery occurs, dlm_recover_waiters_pre() shows the lkb for unlock with RESEND set, doesn't do anything since the master still exists - end of recovery: dlm_recover_waiters_post() takes this lkb off the waiters list because it has the RESEND flag set, then reports an error because unlocks are never supposed to be handled in recover_waiters_post(). - later, the unlock reply is received, doesn't find the lkb on the waiters list because recover_waiters_post() has wrongly removed it. - the unlock operation has been lost, and we're left with a stray granted lock - unmount spins waiting for the unlock to complete The visible evidence of this problem will be a node where gfs umount is spinning, the dlm waiters list will be empty, and the dlm locks list will show a granted lock. The fix is simply to clear the RESEND flag when taking an lkb off the waiters list. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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