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| * Trim includes in fs/super.cAl Viro2010-05-21
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Move grabbing s_umount to callers of grab_super()Al Viro2010-05-21
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Take statfs variants to fs/statfs.cAl Viro2010-05-21
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * switch selinux delayed superblock handling to iterate_supers()Al Viro2010-05-21
| | | | | | | | | | | | ... kill their private list, while we are at it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * new helper: iterate_supers()Al Viro2010-05-21
| | | | | | | | | | | | | | ... and switch the simple "loop over superblocks and do something" loops to it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Bury __put_super_and_need_restart()Al Viro2010-05-21
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * fix prune_dcache()/umount() raceAl Viro2010-05-21
| | | | | | | | | | | | ... and get rid of the last __put_super_and_need_restart() caller Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * In get_super() and user_get_super() restarts are unconditionalAl Viro2010-05-21
| | | | | | | | | | | | If superblock had been still alive, we would've returned it... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * fix get_active_super()/umount() raceAl Viro2010-05-21
| | | | | | | | | | | | This one needs restarts... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * fix do_emergency_remount()/umount() racesAl Viro2010-05-21
| | | | | | | | | | | | | | need list_for_each_entry_safe() here. Original didn't even have restart logics, so if you race with umount() it blew up. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Convert simple loops over superblocks to list_for_each_entry_safeAl Viro2010-05-21
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * get rid of restarts in sync_filesystems()Al Viro2010-05-21
| | | | | | | | | | | | | | At the same time we can kill s_need_restart and local mutex in there. __put_super() made public for a while; will be gone later. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Leave superblocks on s_list until the endAl Viro2010-05-21
| | | | | | | | | | | | | | | | | | | | | | We used to remove from s_list and s_instances at the same time. So let's *not* do the former and skip superblocks that have empty s_instances in the loops over s_list. The next step, of course, will be to get rid of rescan logics in those loops. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Saner locking around deactivate_super()Al Viro2010-05-21
| | | | | | | | | | | | | | | | | | | | | | Make sure that s_umount is acquired *before* we drop the final active reference; we still have the fast path (atomic_dec_unless) and we have gotten rid of the window between the moment when s_active hits zero and s_umount is acquired. Which simplifies the living hell out of grab_super() and inotify pin_to_kill() stuff. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * get rid of S_BIASAl Viro2010-05-21
| | | | | | | | | | | | | | use atomic_inc_not_zero(&sb->s_active) instead of playing games with checking ->s_count > S_BIAS Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * get rid of open-coded grab_super() in get_active_super()Al Viro2010-05-21
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * sb_entry() has been killed a couple of years ago and resurrected on mismergeAl Viro2010-05-21
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * ceph: should use deactivate_locked_super() on failure exitsAl Viro2010-05-21
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Clean ecryptfs ->get_sb() upAl Viro2010-05-21
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * fix a couple of ecryptfs leaksAl Viro2010-05-21
| | | | | | | | | | | | | | | | | | | | | | | | First of all, get_sb_nodev() grabs anon dev minor and we never free it in ecryptfs ->kill_sb(). Moreover, on one of the failure exits in ecryptfs_get_sb() we leak things - it happens before we set ->s_root and ->put_super() won't be called in that case. Solution: kill ->put_super(), do all that stuff in ->kill_sb(). And use kill_anon_sb() instead of generic_shutdown_super() to deal with anon dev leak. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Simplify devpts_get_sb() failure exitsAl Viro2010-05-21
| | | | | | | | | | | | postpone simple_set_mnt() until we know we won't fail. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * remove incorrect comment in do_emergency_remountChristoph Hellwig2010-05-21
| | | | | | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * clean DCACHE_CANT_MOUNT in d_delete()Al Viro2010-05-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We set the "it's dead, don't mount on it" flag _and_ do not remove it if we turn the damn thing negative and leave it around. And if it goes positive afterwards, well... Fortunately, there's only one place where that needs to be caught: only d_delete() can turn the sucker negative without immediately freeing it; all other places that can lead to ->d_iput() call are followed by unconditionally freeing struct dentry in question. So the fix is obvious: Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16014 Reported-by: Adam Tkac <vonsch@gmail.com> Tested-by: Adam Tkac <vonsch@gmail.com> Cc: <stable@kernel.org> [2.6.34.x] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'linux-next' of ↵Linus Torvalds2010-05-21
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (36 commits) PCI: hotplug: pciehp: Removed check for hotplug of display devices PCI: read memory ranges out of Broadcom CNB20LE host bridge PCI: Allow manual resource allocation for PCI hotplug bridges x86/PCI: make ACPI MCFG reserved error messages ACPI specific PCI hotplug: Use kmemdup PM/PCI: Update PCI power management documentation PCI: output FW warning in pci_read/write_vpd PCI: fix typos pci_device_dis/enable to pci_dis/enable_device in comments PCI quirks: disable msi on AMD rs4xx internal gfx bridges PCI: Disable MSI for MCP55 on P5N32-E SLI x86/PCI: irq and pci_ids patch for additional Intel Cougar Point DeviceIDs PCI: aerdrv: trivial cleanup for aerdrv_core.c PCI: aerdrv: trivial cleanup for aerdrv.c PCI: aerdrv: introduce default_downstream_reset_link PCI: aerdrv: rework find_aer_service PCI: aerdrv: remove is_downstream PCI: aerdrv: remove magical ROOT_ERR_STATUS_MASKS PCI: aerdrv: redefine PCI_ERR_ROOT_*_SRC PCI: aerdrv: rework do_recovery PCI: aerdrv: rework get_e_source() ...
| * | PCI: hotplug: pciehp: Removed check for hotplug of display devicesPraveen Kalamegham2010-05-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removed check to prevent hotplug of display devices within pciehp. Originally this was thought to have been required within the PCI Hotplug specification for some legacy devices. However there is no such requirement in the most recent revision. The check prevents hotplug of not only display devices but also computational GPUs which require serviceability. Signed-off-by: Praveen Kalamegham <praveen@nextio.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: read memory ranges out of Broadcom CNB20LE host bridgeIra W. Snyder2010-05-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Read the memory ranges behind the Broadcom CNB20LE host bridge out of the hardware. This allows PCI hotplugging to work, since we know which memory range to allocate PCI BAR's from. The x86 PCI code automatically prefers the ACPI _CRS information when it is available. In that case, this information is not used. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: Allow manual resource allocation for PCI hotplug bridgesFelix Radensky2010-05-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At the moment only PCI-E briges can be flagged as hotplug, thus allowing manual resource preallocation via pci=hpmemsize=nnM and pci=hpiosize=nnM kernel parameters. Some PCI hotplug bridges, e.g. PLX 6254 can also benefit from this functionalily, as kernel fails to properly allocate their resources when hotplug device is added and PCI bus is rescanned. This patch adds header quirk for PLX 6254 that marks this bridge as hotplug. Other PCI bridges with similar problems can use it as well. Signed-off-by: Felix Radensky <felix@embedded-sol.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | x86/PCI: make ACPI MCFG reserved error messages ACPI specificFeng Tang2010-05-18
| | | | | | | | | | | | | | | | | | | | | | | | Both ACPI and SFI firmwares will have MCFG space, but the error message isn't valid on SFI, so don't print the message in that case. Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI hotplug: Use kmemdupJulia Lawall2010-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use kmemdup when some other buffer is immediately copied into the allocated region. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; statement S; @@ - to = \(kmalloc\|kzalloc\)(size,flag); + to = kmemdup(from,size,flag); if (to==NULL || ...) S - memcpy(to, from, size); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PM/PCI: Update PCI power management documentationRafael J. Wysocki2010-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I power management document, Documentation/power/pci.txt, is outdated and partially inaccurate. It also is missing some important information about the power management of PCI device. Rewrite it to make it more up to date and more complete. Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
| * | PCI: output FW warning in pci_read/write_vpdPrarit Bhargava2010-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pci_read/write_vpd() can fail due to a timeout. Usually the command times out because of firmware issues (incorrect vpd length, etc.) on the PCI card. Currently, the timeout occurs silently. Output a message to the user indicating that they should check with their vendor for new firmware. Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: fix typos pci_device_dis/enable to pci_dis/enable_device in commentsRoman Fietze2010-05-18
| | | | | | | | | | | | | | | | | | | | | | | | This fixes all occurrences of pci_enable_device and pci_disable_device in all comments. There are no code changes involved. Signed-off-by: Roman Fietze <roman.fietze@telemotive.de> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI quirks: disable msi on AMD rs4xx internal gfx bridgesAlex Deucher2010-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | Doesn't work reliably for internal gfx. Fixes kernel bug https://bugzilla.kernel.org/show_bug.cgi?id=15626. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: Stable <stable@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: Disable MSI for MCP55 on P5N32-E SLIBen Hutchings2010-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As reported in <http://bugs.debian.org/552299>, MSI appears to be broken for this on-board device. We already have a quirk for the P5N32-SLI Premium; extend it to cover both variants of the board. Reported-by: Romain DEGEZ <romain.degez@smartjog.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: stable@kernel.org Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | x86/PCI: irq and pci_ids patch for additional Intel Cougar Point DeviceIDsSeth Heasley2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds additional LPC Controller DeviceIDs for the Intel Cougar Point PCH. The DeviceIDs are defined and referenced as a range of values, the same way Ibex Peak was implemented. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: trivial cleanup for aerdrv_core.cHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | Style cleanup for pci_{en,dis}able_pcie_error_reporting(). Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: trivial cleanup for aerdrv.cHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | Skip zero-ing in aer_alloc_rpc() since it is allocated by kzalloc(). The closing comment marker "*/" is recommended for kernel-doc comments. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: introduce default_downstream_reset_linkHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I noticed that when I inject a fatal error to an endpoint via aer-inject, aer_root_reset() is called as reset_link for a downstream port at upstream of the endpoint: pcieport 0000:00:06.0: AER: Uncorrected (Fatal) error received: id=5401 : pcieport 0000:52:02.0: Root Port link has been reset It externally appears to be working, but internally issues some accesses to PCI_ERR_ROOT_COMMAND/STATUS registers that is for root port so not available on downstream port. This patch introduces default_downstream_reset_link that is a version of aer_root_reset() with no accesses to root port's register. It is used for downstream ports that has no reset_link function its specific. This patch also updates related description in pcieaer-howto.txt. Some minor fixes are included. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: rework find_aer_serviceHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | The structure find_aer_service_data is no longer useful. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Reviewed-by: Jin Dongming <jin.dongming@np.css.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: remove is_downstreamHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pcie->port of port service device points the port associated the service with. The find_aer_service iterates over children of given port udev. So it is clear that the pcie->port of port service of given port udev must always point the udev. Therefore we can know the type of udev without checking its children. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: remove magical ROOT_ERR_STATUS_MASKSHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | Make it clear that we only interest in 2 *_RCV bits. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: redefine PCI_ERR_ROOT_*_SRCHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Error Source Identification Register (Offset 34h) is 4 byte which contains a couple of 2 byte field, "[15:0] ERR_COR Source Identification" and "[31:16] ERR_FATAL/NONFATAL Source Identification." This patch defines PCI_ERR_ROOT_ERR_SRC to make dword access sensible. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: rework do_recoveryHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | Move dev_printks for debug into do_recovery(). This allows do_recovery() to return void. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: rework get_e_source()Hidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current get_e_source() returns pointer to an element of array. However since it also progress consume counter, it is possible that the element is overwritten by newly produced data before the element is really consumed. This patch changes get_e_source() to copy contents of the element to address pointed by its caller. Once copied the element in array can be consumed. And relocate this function to more innocuous place. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: rework aer_isr_one_error()Hidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Divide tricky for-loop into readable if-blocks. The logic to set multi_error_valid (to force walking pci bus hierarchy to find 2nd~ error devices) is changed too, to check MULTI_{,_UN}COR_RCV bit individually and to force walk only when it is required. And rework setting e_info->severity for uncorrectable, not to use magic numbers. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: rework add_error_deviceHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | Stop iteration if we cannot register any more. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: remove compare_device_idHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | Inline too-simple subroutine only used here. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: introduce is_error_sourceHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Take core part of find_device_iter() to make a new function is_error_source() that checks given device has report an error or not. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: rework find_source_deviceHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Return bool to indicate that the source device is found or not. This allows us to skip calling aer_process_err_devices() if we can. And move dev_printk for debug into this function. v2: return bool instead of int Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | PCI: aerdrv: make aer_{en,dis}able_rootport staticHidetoshi Seto2010-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | These functions are only called from init/remove path of aerdrv, so move them from aerdrv_core.c to aerdrv.c, to make them static. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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