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*---------------. Merge branches 'battery', 'bugzilla-14667', 'bugzilla-15096', ↵Len Brown2010-04-06
|\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'bugzilla-15480', 'bugzilla-15521', 'bugzilla-15605', 'gpe-reference-counters', 'misc', 'pxm-fix' and 'video-random-key' into release
| | | | | | | | | * ACPI: Don't send KEY_UNKNOWN for random video notificationsMatthew Garrett2010-04-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I have a machine here that's sending 0xD1 notifications on the video device once every second or so. I have no idea why (it's a prototype, it may be broken), but sending KEY_UNKNOWN is unhelpful and results in the console becoming unusable. Let's not report keys unless we have something useful to say about them. Signed-off-by: Matthew Garrett <mjg@redhat.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | * | ACPI: NUMA: map pxms to low node idsDavid Rientjes2010-04-04
| | | | | | | | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pxms are mapped to low node ids to maintain generic kernel use of functions such as pxm_to_node() that are used to determine device affinity. Otherwise, there is no pxm-to-node and node-to-pxm matching rule for x86_64 users of NUMA emulation where a single pxm may be bound to multiple NUMA nodes. Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | * / ACPI: Reduce ACPI resource conflict message to KERN_WARNING, printk cleanupChase Douglas2010-04-04
| | | | | | | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By default, ACPI resource conflict messages are logged at level KERN_ERR. This is a rather high level for a message that is more a warning than an indication of a real kernel error. Also, KERN_ERR level messages can appear over some boot splash screens, and this message is not serious enough to warrant such treatment. Thus, the log level has been reduced to KERN_WARNING. [lenb changed to KERN_WARNING rather than all the way to KERN_INFO] Also, cleanup message to use %pR resource printing format. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | * | ACPI / ACPICA: Do not check reference counters in acpi_ev_enable_gpe()Rafael J. Wysocki2010-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | acpi_ev_enable_gpe() should enable the GPE at the hardware level regardless of the value of the GPE's runtime reference counter. There are only two callers of acpi_ev_enable_gpe(), acpi_enable_gpe() and acpi_set_gpe(). The first one checks the GPE's runtime reference counter itself and only calls acpi_ev_enable_gpe() if it's equal to one, and the other one is supposed to enable the GPE unconditionally (if called with ACPI_GPE_ENABLE). This change fixes the problem in acpi_enable_wakeup_device() where the GPE will not be enabled for wakeup if it's runtime reference counter is zero, which is a regression from 2.6.33. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-by: Robert Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | * | | ACPI: use _HID when supplied by root-level devicesBjorn Helgaas2010-04-03
| | | | | | |/ | | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously, we assumed the only Device object immediately below the root was the \_SB Scope (which the ACPI CA treats as a Device), so we forced the HID of all such objects to ACPI_BUS_HID ("LNXSYBUS"). However, there are DSDTs that supply root-level Device objects with _HIDs. This patch makes us pay attention to those _HIDs and only add the synthetic ACPI_BUS_HID for root-level objects that do not supply their own _HID. For example, this DSDT: https://bugzilla.kernel.org/show_bug.cgi?id=15605 contains: Scope (_SB) { ... } Device (AMW0) { Name (_HID, EisaId ("PNP0C14")) ... } and we should use "PNP0C14" for the AMW0 device, not "LNXSYBUS". Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Tested-by: Yong Wang <yong.y.wang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | * | | ACPI: fixes a false alarm from lockdepZhang Rui2010-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fixes a false alarm from lockdep, as acpi hotplug workqueue waits other workqueues. http://bugzilla.kernel.org/show_bug.cgi?id=14553 https://bugzilla.kernel.org/show_bug.cgi?id=15521 Original-patch-from: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | * | | ACPI dock: support multiple ACPI dock devicesZhang Rui2010-03-23
| | | | | |/ | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There may be multiple ACPI dock devices exist in ACPI namespace and we should probe all of them. http://bugzilla.kernel.org/show_bug.cgi?id=15521 CC: Li Shaohua <shaohua.li@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | * | | PNPACPI: truncate _CRS windows with _LEN > _MAX - _MIN + 1Bjorn Helgaas2010-04-04
| | | | |/ | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ACPI spec (sec 6.4.3.5 in v4.0) requires that for Address Space Resource Descriptors, _LEN <= _MAX - _MIN + 1 in all cases, but there are BIOSes that violate this. We experimentally determined that Windows truncates the resource so it doesn't extend past _MAX, so let's do the same thing in Linux. http://bugzilla.kernel.org/show_bug.cgi?id=15480 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI / PM: Move ACPI video resume to a PM notifierRafael J. Wysocki2010-04-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a problem with the ACPI video resume routine that it's executed before the GPU that may be accessed by it. To fix this issue, move the ACPI video resume to a power management notifier, so that's executed after resuming all devices, including the GPU. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=15096, which is a listed regression from 2.6.31. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Tested-by: Rafał Miłecki <zajec5@gmail.com> Acked-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds2010-04-05
| | |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] qla1280: retain firmware for error recovery [SCSI] attirbute_container: Initialize sysfs attributes with sysfs_attr_init [SCSI] advansys: fix regression with request_firmware change [SCSI] qla2xxx: Updated version number to 8.03.02-k2. [SCSI] qla2xxx: Prevent sending mbx commands from sysfs during isp reset. [SCSI] qla2xxx: Disable MSI on qla24xx chips other than QLA2432. [SCSI] qla2xxx: Check to make sure multique and CPU affinity support is not enabled at the same time. [SCSI] qla2xxx: Correct vp_idx checking during PORT_UPDATE processing. [SCSI] qla2xxx: Honour "Extended BB credits" bit for CNAs. [SCSI] scsi_transport_fc: Make sure commands are completed when rport is offline [SCSI] libiscsi: Fix recovery slowdown regression
| | | * | | [SCSI] qla1280: retain firmware for error recoveryMichael Reed2010-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The qla1280 driver acquires its firmware via udev. During boot the firmware is located in the initrd. If, after root is mounted, the adapter needs to reload firmware (host reset), the firmware load may fail if the root device is on the adapter being reset. This patch modifies qla1280 to retain the firmware loaded via the initial request_firmware() for use during error recovery. [jejb: fix up checkpatch issues] Signed-off-by: Michael Reed <mdr@sgi.com> Acked-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | | * | | [SCSI] attirbute_container: Initialize sysfs attributes with sysfs_attr_initJames Bottomley2010-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All of the SCSI transport classes are suddenly spitting lockdep warnings. According to Eric Biderman this is because lockdep needs static initialisers and the attribute container way of doing things end up with dynamic sysfs attributes. Fix this by calling sysfs_attr_init which sets the lockdep key correctly. Tested-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | | * | | [SCSI] advansys: fix regression with request_firmware changeHerton Ronaldo Krzesinski2010-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On newer kernels users of advansys module are reporting system hang when trying to load it without firmware files present. After looking closely at description on https://qa.mandriva.com/show_bug.cgi?id=53220, I think this is related to commit "[SCSI] advansys: use request_firmware". The problem is that after switch to request_firmware, asc_dvc->err_code isn't being set when firmware files aren't found or loading fails. err_code is used by the driver to judge if there was a fatal error or not, as can be seen for example on advansys_board_found, which will only return -ENODEV when err_code is set. Because err_code isn't being set when request_firmware fails, this is a change of behaviour of the code before request_firmware addition, making it continue to load and it fails later as the firmware wasn't really loaded. Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | | * | | [SCSI] qla2xxx: Updated version number to 8.03.02-k2.Giridhar Malavali2010-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | | * | | [SCSI] qla2xxx: Prevent sending mbx commands from sysfs during isp reset.Santosh Vernekar2010-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The fix prevents application path from sending get-firmware-state mbx command during as isp reset. Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | | * | | [SCSI] qla2xxx: Disable MSI on qla24xx chips other than QLA2432.Ben Hutchings2010-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On specific platforms, MSI is unreliable on some of the QLA24xx chips, resulting in fatal I/O errors under load, as reported in <http://bugs.debian.org/572322> and by some RHEL customers. Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | | * | | [SCSI] qla2xxx: Check to make sure multique and CPU affinity support is not ↵Michael Hernandez2010-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | enabled at the same time. The logic is changed to detect this condition based on following 1) both module parameters are off (ql2xmaxqueues and ql2xmultique_tag). 2) both module parameters are on (ql2xmaxqueues and ql2xmultique_tag). 3) The HBA does not support multi queue. Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | | * | | [SCSI] qla2xxx: Correct vp_idx checking during PORT_UPDATE processing.Andrew Vasquez2010-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Checks should only be done for NPIV-capable ISPs. Original code could result in PORT_UPDATEs being missed on non-NPIV-capable ISPs. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | | * | | [SCSI] qla2xxx: Honour "Extended BB credits" bit for CNAs.Santosh Vernekar2010-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We now enable/disable "Additional Receive Credits" in f/w based on nvram parameter "Extended_BB_Credits" bit (i.e. Enhanced-Features: at offset 0x196). This is applicable only for GEN2 CNAs. Signed-off-by: Santosh Vernekar <santosh.vernekar@qlogic.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | | * | | [SCSI] scsi_transport_fc: Make sure commands are completed when rport is offlineSarang Radke2010-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | blk_end_request doesn't complete a bidi request successfully The unfinished request eventually triggers a panic in timeout handling routine fc_bsg_job_timeout as req->special is NULL Use blk_end_request_all to end the request unconditionally Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com> Acked-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | | * | | [SCSI] libiscsi: Fix recovery slowdown regressionMike Christie2010-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We could be failing/stopping a connection due to libiscsi starting recovery/cleanup, but the xmit path or scsi eh thread path could be dropping the connection at the same time. As a result the session->state gets set to failed instead of in recovery. We end up not blocking the session and so the replacement timeout never gets started and we only end up failing the IO when scsi_softirq_done sees that the cmd has been running for (cmd->allowed + 1) * rq->timeout secs. We used to fail the IO right away so users are seeing a long delay when using dm-multipath. This problem was added in 2.6.28. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| | * | | | Merge branch 'for-linus' of ↵Linus Torvalds2010-04-05
| | |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: saving negative to unsigned char 9p: return on mutex_lock_interruptible() 9p: Creating files with names too long should fail with ENAMETOOLONG. 9p: Make sure we are able to clunk the cached fid on umount 9p: drop nlink remove fs/9p: Clunk the fid resulting from partial walk of the name 9p: documentation update 9p: Fix setting of protocol flags in v9fs_session_info structure.
| | | * | | | 9p: saving negative to unsigned charDan Carpenter2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Saving -EINVAL as unsigned char truncates the high bits and changes it into 234 instead of -22. This breaks the test for "if (ret == -EINVAL)" in parse_opts(). Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| | | * | | | 9p: return on mutex_lock_interruptible()Dan Carpenter2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If "err" is -EINTR here the original code calls mutex_unlock() and then returns, but it should just return directly. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> ------------------------------------------------------------------------------ Download Intel&#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev
| | | * | | | 9p: Creating files with names too long should fail with ENAMETOOLONG.Sripathi Kodi2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| | | * | | | 9p: Make sure we are able to clunk the cached fid on umountAneesh Kumar K.V2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dcache prune happen on umount. So we cannot mark the client satus disconnect. That will prevent a 9p call to the server Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| | | * | | | 9p: drop nlink removeAneesh Kumar K.V2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to drop the link count on the inode of a sucessfull remove Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| | | * | | | fs/9p: Clunk the fid resulting from partial walk of the nameAneesh Kumar K.V2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| | | * | | | 9p: documentation updateSripathi Kodi2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds documentation for new 9P options introduced in 2.6.34. Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| | | * | | | 9p: Fix setting of protocol flags in v9fs_session_info structure.Sripathi Kodi2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a simple bug I left behind in my earlier protocol negotiation patch. Thanks, Sripathi. Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| | * | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstableLinus Torvalds2010-04-05
| | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: add check for changed leaves in setup_leaf_for_split Btrfs: create snapshot references in same commit as snapshot Btrfs: fix small race with delalloc flushing waitqueue's Btrfs: use add_to_page_cache_lru, use __page_cache_alloc Btrfs: fix chunk allocate size calculation Btrfs: kill max_extent mount option Btrfs: fail to mount if we have problems reading the block groups Btrfs: check btrfs_get_extent return for IS_ERR() Btrfs: handle kmalloc() failure in inode lookup ioctl Btrfs: dereferencing freed memory Btrfs: Simplify num_stripes's calculation logical for __btrfs_alloc_chunk() Btrfs: Add error handle for btrfs_search_slot() in btrfs_read_chunk_tree() Btrfs: Remove unnecessary finish_wait() in wait_current_trans() Btrfs: add NULL check for do_walk_down() Btrfs: remove duplicate include in ioctl.c Fix trivial conflict in fs/btrfs/compression.c due to slab.h include cleanups.
| | | * | | | | Btrfs: add check for changed leaves in setup_leaf_for_splitChris Mason2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | setup_leaf_for_split needs to drop the path and search again, and has checks to see if the item we want to split changed size. But, it misses the case where the leaf changed and now has enough room for the item we want to insert. This adds an extra check to make sure the leaf really needs splitting before we call btrfs_split_leaf(), which keeps us from trying to split a leaf with a single item. btrfs_split_leaf() will blindly split the single item leaf, leaving us with one good leaf and one empty leaf and then a crash. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: create snapshot references in same commit as snapshotSage Weil2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This creates the reference to a new snapshot in the same commit as the snapshot itself. This avoids the need for a second commit in order for a snapshot to be persistent, and also avoids the problem of "leaking" a new snapshot tree root if the host crashes before the second commit takes place. It is not at all clear to me why it wasn't always done this way. If there is still a reason for the two-stage {create,finish}_pending_snapshots() approach I'm missing something! :) I've been running this for a couple weeks under pretty heavy usage (a few snapshots per minute) without obvious problems. Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: fix small race with delalloc flushing waitqueue'sJosef Bacik2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Everytime we start a new flushing thread, we init the waitqueue if there isn't a flushing thread running. The problem with this is we check space_info->flushing, which we clear right before doing a wake_up on the flushing waitqueue, which causes problems if we init the waitqueue in the middle of clearing the flushing flagh and calling wake_up. This is hard to hit, but the code is wrong anyway, so init the flushing/allocating waitqueue when creating the space info and let it be. I haven't seen the panic since I've been using this patch. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: use add_to_page_cache_lru, use __page_cache_allocNick Piggin2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pagecache pages should be allocated with __page_cache_alloc, so they obey pagecache memory policies. add_to_page_cache_lru is exported, so it should be used. Benefits over using a private pagevec: neater code, 128 bytes fewer stack used, percpu lru ordering is preserved, and finally don't need to flush pagevec before returning so batching may be shared with other LRU insertions. Signed-off-by: Nick Piggin <npiggin@suse.de>: Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: fix chunk allocate size calculationJosef Bacik2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the amount of free space left in a device is less than what we think should be the minimum size, just ignore the minimum size and use the amount we have. I ran into this running tests on a 600mb volume, the chunk allocator wouldn't let me allocate the last 52mb of the disk for data because we want to have at least 64mb chunks for data. This patch fixes that problem. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: kill max_extent mount optionJosef Bacik2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As Yan pointed out, theres not much reason for all this complicated math to account for file extents being split up into max_extent chunks, since they are likely to all end up in the same leaf anyway. Since there isn't much reason to use max_extent, just remove the option altogether so we have one less thing we need to test. Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: fail to mount if we have problems reading the block groupsJosef Bacik2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We don't actually check the return value of btrfs_read_block_groups, so we can possibly succeed to mount, but then fail to say read the superblock xattr for selinux which will cause the vfs code to deactivate the super. This is a problem because in find_free_extent we just assume that we will find the right space_info for the allocation we want. But if we failed to read the block groups, we won't have setup any space_info's, and we'll hit a NULL pointer deref in find_free_extent. This patch fixes that problem by checking the return value of btrfs_read_block_groups, and failing out properly. I've also added a check in find_free_extent so if for some reason we don't find an appropriate space_info, we just return -ENOSPC. Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: check btrfs_get_extent return for IS_ERR()Dan Carpenter2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | btrfs_get_extent() never returns NULL, only a valid pointer or ERR_PTR() Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: handle kmalloc() failure in inode lookup ioctlDan Carpenter2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Return -ENOMEM if kmalloc() fails. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: dereferencing freed memoryDan Carpenter2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The original code dereferenced range on the next line. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: Simplify num_stripes's calculation logical for __btrfs_alloc_chunk()Zhao Lei2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can use this simple method to make source more readable. Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: Add error handle for btrfs_search_slot() in btrfs_read_chunk_tree()Zhao Lei2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to check return value of btrfs_search_slot() in btrfs_read_chunk_tree() and do corresponding error handing. Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: Remove unnecessary finish_wait() in wait_current_trans()Zhao Lei2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We only need to call finish_wait() after wait loop. By the way, this patch makes code of waiting loop similar to example in wait.h(no functional change) Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: add NULL check for do_walk_down()Miao Xie2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | btrfs_find_create_tree_block() may return NULL, so we must check the returned value, or we will access a NULL pointer. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | | * | | | | Btrfs: remove duplicate include in ioctl.cAndrea Gelmini2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fs/btrfs/ioctl.c: ctree.h is included more than once. Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * | | | | | audit: preface audit printk with auditEric Paris2010-04-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There have been a number of reports of people seeing the message: "name_count maxed, losing inode data: dev=00:05, inode=3185" in dmesg. These usually lead to people reporting problems to the filesystem group who are in turn clueless what they mean. Eventually someone finds me and I explain what is going on and that these come from the audit system. The basics of the problem is that the audit subsystem never expects a single syscall to 'interact' (for some wish washy meaning of interact) with more than 20 inodes. But in fact some operations like loading kernel modules can cause changes to lots of inodes in debugfs. There are a couple real fixes being bandied about including removing the fixed compile time limit of 20 or not auditing changes in debugfs (or both) but neither are small and obvious so I am not sending them for immediate inclusion (I hope Al forwards a real solution next devel window). In the meantime this patch simply adds 'audit' to the beginning of the crap message so if a user sees it, they come blame me first and we can talk about what it means and make sure we understand all of the reasons it can happen and make sure this gets solved correctly in the long run. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * | | | | | Merge branch 'slabh' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/miscLinus Torvalds2010-04-05
| | |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'slabh' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc: eeepc-wmi: include slab.h staging/otus: include slab.h from usbdrv.h percpu: don't implicitly include slab.h from percpu.h kmemcheck: Fix build errors due to missing slab.h include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h iwlwifi: don't include iwl-dev.h from iwl-devtrace.h x86: don't include slab.h from arch/x86/include/asm/pgtable_32.h Fix up trivial conflicts in include/linux/percpu.h due to is_kernel_percpu_address() having been introduced since the slab.h cleanup with the percpu_up.c splitup.
| | | * | | | | | eeepc-wmi: include slab.hTejun Heo2010-04-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | eeepc-wmi uses kfree() but doesn't include slab.h. Include it. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Yong Wang <yong.y.wang@intel.com>