- 31 Jul, 2013 12 commits
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Roland Dreier authored
Merge branches 'cma', 'cxgb3', 'cxgb4', 'ipoib', 'misc', 'mlx4', 'mlx5', 'nes', 'ocrdma' and 'qib' into for-next
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Erez Shitrit authored
IPoIB's required behaviour w.r.t to the pkey used by the device is the following: - For "parent" interfaces (e.g ib0, ib1, etc) who are created automatically as a result of hot-plug events from the IB core, the driver needs to take whatever pkey vlaue it finds in index 0, and stick to that index. - For child interfaces (e.g ib0.8001, etc) created by admin directive, the driver needs to use and stick to the value provided during its creation. In SR-IOV environment its possible for the VF probe to take place before the cloud management software provisions the suitable pkey for the VF in the paravirtualed PKEY table index 0. When this is the case, the VF IB stack will find in index 0 an invalide pkey, which is all zeros. Moreover, the cloud managment can assign the pkey value at index 0 at any time of the guest life cycle. The correct behavior for IPoIB to address these requirements for parent interfaces is to use PKEY_CHANGE event as trigger to optionally re-init the device pkey value and re-create all the relevant resources accordingly, if the value of the pkey in index 0 has changed (from invalid to valid or from valid value X to invalid value Y). This patch enhances the heavy flushing code which is triggered by pkey change event, to behave correctly for parent devices. For child devices, the code remains the same, namely chases pkey value and not index. Signed-off-by:
Erez Shitrit <erezsh@mellanox.com> Signed-off-by:
Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Or Gerlitz authored
Make sure that the IB invalid pkey (0x0000 or 0x8000) isn't used for child devices. Also, make sure to always set the full membership bit for the pkey of devices created by rtnl link ops. Signed-off-by:
Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Jack Morgenstein authored
Currently, QP1 is created using pkey index 0. This patch simply looks for the index containing the default pkey, rather than hard-coding pkey index 0. This change will have no effect in native mode, since QP0 and QP1 are created before the SM configures the port, so pkey table will still be the default table defined by the IB Spec, in C10-123: "If non-volatile storage is not used to hold P_Key Table contents, then if a PM (Partition Manager) is not present, and prior to PM initialization of the P_Key Table, the P_Key Table must act as if it contains a single valid entry, at P_Key_ix = 0, containing the default partition key. All other entries in the P_Key Table must be invalid." Thus, in the native mode case, the driver will find the default pkey at index 0 (so it will be no different than the hard-coding). However, in SR-IOV mode, for VFs, the pkey table may be paravirtualized, so that the VF's pkey index zero may not necessarily be mapped to the real pkey index 0. For VFs, therefore, it is important to find the virtual index which maps to the real default pkey. This commit does the following for QP1 creation: 1. Find the pkey index containing the default pkey, and use that index if found. ib_find_pkey() returns the index of the limited-membership default pkey (0x7FFF) if the full-member default pkey is not in the table. 2. If neither form of the default pkey is found, use pkey index 0 (previous behavior). Signed-off-by:
Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by:
Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by:
Sean Hefty <sean.hefty@intel.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Andi Shyti authored
In the sq_overhead() function, if qp_typ is equal to IB_QPT_RC, size will be used uninitialized. Signed-off-by:
Andi Shyti <andi@etezian.org> Acked-by:
Eli Cohen <eli@mellanox.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Eli Cohen authored
Introduce enbale_hca and disable_hca commands to signify when the driver starts or ceases to operate on the device. In addition the driver will use boot and init pages count; boot pages is required to allow firmware to complete boot commands and the other to complete init hca. Command interface revision is bumped to 4 to enforce using supported firmware. This patch breaks compatibility with old versions of firmware (< 4); however, the first GA firmware we will publish will support version 4 so this should not be a problem. Signed-off-by:
Eli Cohen <eli@mellanox.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Dan Carpenter authored
We can't dereference "ent" after passing it to free_cmd(). Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Eli Cohen <eli@mellanox.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Dan Carpenter authored
We don't set "resp.reserved". Since it's at the end of the struct that means we don't have to copy it to the user. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Eli Cohen <eli@mellanox.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Wei Yongjun authored
Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Jack Morgenstein authored
When creating tunnel QPs for special QP tunneling, look for the default pkey in the slave's virtual pkey table. If it is present, use the real pkey index where the default pkey is located. If the default pkey is not found in the pkey table, use the real pkey index which is stored at index 0 in the slave's virtual pkey table (this is the current behavior). This change is required to support cloud computing, where the paravirtualized index of the default pkey is moved to index 1 or higher. The pkey at paravirtualized index 0 is used for the default IPoIB interface created by the VF. Its possible for the pkey value at paravirtualized index 0 to be invalid (zero) at VF probe time (pkey index 0 is mapped to real pkey index 127, which contains pkey = 0). At some point after the VF probe, the cloud computing interface at the hypervisor maps virtual index 0 for the VF to the pkey index containing the pkey that IPoIB will use in its operation. However, when the tunnel QP is created, the pkey at the slave's virtual index 0 is still mapped to the invalid pkey index, so tunnel QP creation fails. This commit causes the hypervisor to search for the default pkey in the slave's pkey table -- and this pkey is present in the table (at index > 0) at tunnel QP creation time, so that the tunnel QP creation will succeed. Signed-off-by:
Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by:
Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Sean Hefty authored
Calling cma_save_ib_info() for CM SIDR REQs results in a crash accessing an invalid path record pointer. Signed-off-by:
Sean Hefty <sean.hefty@intel.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Sean Hefty authored
If a application is using AF_IB with a UD QP, but does not provide any private data, we will end up accessing invalid memory. Check for this case and handle it appropriately. Signed-off-by:
Sean Hefty <sean.hefty@intel.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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- 30 Jul, 2013 7 commits
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Paul Bolle authored
Building cma.o triggers this gcc warning: drivers/infiniband/core/cma.c: In function ‘rdma_resolve_addr’: drivers/infiniband/core/cma.c:465:23: warning: ‘port’ may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/infiniband/core/cma.c:426:5: note: ‘port’ was declared here This is a false positive, as "port" will always be initialized if we're at "found". But if we assign to "id_priv->id.port_num" directly, we can drop "port". That will, obviously, silence gcc. Signed-off-by:
Paul Bolle <pebolle@tiscali.nl> Signed-off-by:
Sean Hefty <sean.hefty@intel.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Roland Dreier authored
This reverts commit bca1935c, which removes variables nes_tcp_state_str and nes_iwarp_state_str, assuming that they aren't defined. However, they are defined within a #ifdef NES_DEBUG statement, which if enabled causes "defined but not used" compiler warning, when the variables are removed. Signed-off-by:
Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Mike Marciniszyn authored
Commit 0b3ddf38 ("Log all SDMA errors unconditionally") missed part of the patch. This also corrects a format warning when dma_addr_t is 32 bits on a 64 bit system. Signed-off-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Dan Carpenter authored
The "uresp.reserved" field isn't initialized on this path so it could leak uninitialized stack information to the user. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Dan Carpenter authored
We pass a few bytes of uninitialized stack memory to the user here. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Dan Carpenter authored
A grab bag of places which don't properly initialize stack data. I removed one place which cleared ".rsvd" because it's not needed now that I have added a memset() earlier in the function. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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Dan Carpenter authored
"uresp.ma_sync_key" doesn't get set on this path so we leak 8 bytes of data. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
Roland Dreier <roland@purestorage.com>
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- 26 Jul, 2013 1 commit
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Roland Dreier authored
I'd like to remove rdma/ib_cache.h some day, so let's avoid proliferating uses of it unnecessarily. Signed-off-by:
Roland Dreier <roland@purestorage.com>
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- 21 Jul, 2013 5 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI video support fixes from Rafael Wysocki: "I'm sending a separate pull request for this as it may be somewhat controversial. The breakage addressed here is not really new and the fixes may not satisfy all users of the affected systems, but we've had so much back and forth dance in this area over the last several weeks that I think it's time to actually make some progress. The source of the problem is that about a year ago we started to tell BIOSes that we're compatible with Windows 8, which we really need to do, because some systems shipping with Windows 8 are tested with it and nothing else, so if we tell their BIOSes that we aren't compatible with Windows 8, we expose our users to untested BIOS/AML code paths. However, as it turns out, some Windows 8-specific AML code paths are not tested either, because Windows 8 actually doesn't use the ACPI methods containing them, so if we declare Windows 8 compatibility and attempt to use those ACPI methods, things break. That occurs mostly in the backlight support area where in particular the _BCM and _BQC methods are plain unusable on some systems if the OS declares Windows 8 compatibility. [ The additional twist is that they actually become usable if the OS says it is not compatible with Windows 8, but that may cause problems to show up elsewhere ] Investigation carried out by Matthew Garrett indicates that what Windows 8 does about backlight is to leave backlight control up to individual graphics drivers. At least there's evidence that it does that if the Intel graphics driver is used, so we've decided to follow Windows 8 in that respect and allow i915 to control backlight (Daniel likes that part). The first commit from Aaron Lu makes ACPICA export the variable from which we can infer whether or not the BIOS believes that we are compatible with Windows 8. The second commit from Matthew Garrett prepares the ACPI video driver by making it initialize the ACPI backlight even if it is not going to be used afterward (that is needed for backlight control to work on Thinkpads). The third commit implements the actual workaround making i915 take over backlight control if the firmware thinks it's dealing with Windows 8 and is based on the work of multiple developers, including Matthew Garrett, Chun-Yi Lee, Seth Forshee, and Aaron Lu. The final commit from Aaron Lu makes us follow Windows 8 by informing the firmware through the _DOS method that it should not carry out automatic brightness changes, so that brightness can be controlled by GUI. Hopefully, this approach will allow us to avoid using blacklists of systems that should not declare Windows 8 compatibility just to avoid backlight control problems in the future. - Change from Aaron Lu makes ACPICA export a variable which can be used by driver code to determine whether or not the BIOS believes that we are compatible with Windows 8. - Change from Matthew Garrett makes the ACPI video driver initialize the ACPI backlight even if it is not going to be used afterward (that is needed for backlight control to work on Thinkpads). - Fix from Rafael J Wysocki implements Windows 8 backlight support workaround making i915 take over bakclight control if the firmware thinks it's dealing with Windows 8. Based on the work of multiple developers including Matthew Garrett, Chun-Yi Lee, Seth Forshee, and Aaron Lu. - Fix from Aaron Lu makes the kernel follow Windows 8 by informing the firmware through the _DOS method that it should not carry out automatic brightness changes, so that brightness can be controlled by GUI" * tag 'acpi-video-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / video: no automatic brightness changes by win8-compatible firmware ACPI / video / i915: No ACPI backlight if firmware expects Windows 8 ACPI / video: Always call acpi_video_init_brightness() on init ACPICA: expose OSI version
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
Pull ext[34] tmpfile bugfix from Ted Ts'o: "Fix regression caused by commit af51a2ac which added ->tmpfile() support (along with a similar fix for ext3)" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext3: fix a BUG when opening a file with O_TMPFILE flag ext4: fix a BUG when opening a file with O_TMPFILE flag
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Zheng Liu authored
When we try to open a file with O_TMPFILE flag, we will trigger a bug. The root cause is that in ext4_orphan_add() we check ->i_nlink == 0 and this check always fails because we set ->i_nlink = 1 in inode_init_always(). We can use the following program to trigger it: int main(int argc, char *argv[]) { int fd; fd = open(argv[1], O_TMPFILE, 0666); if (fd < 0) { perror("open "); return -1; } close(fd); return 0; } The oops message looks like this: kernel: kernel BUG at fs/ext3/namei.c:1992! kernel: invalid opcode: 0000 [#1] SMP kernel: Modules linked in: ext4 jbd2 crc16 cpufreq_ondemand ipv6 dm_mirror dm_region_hash dm_log dm_mod parport_pc parport serio_raw sg dcdbas pcspkr i2c_i801 ehci_pci ehci_hcd button acpi_cpufreq mperf e1000e ptp pps_core ttm drm_kms_helper drm hwmon i2c_algo_bit i2c_core ext3 jbd sd_mod ahci libahci libata scsi_mod uhci_hcd kernel: CPU: 0 PID: 2882 Comm: tst_tmpfile Not tainted 3.11.0-rc1+ #4 kernel: Hardware name: Dell Inc. OptiPlex 780 /0V4W66, BIOS A05 08/11/2010 kernel: task: ffff880112d30050 ti: ffff8801124d4000 task.ti: ffff8801124d4000 kernel: RIP: 0010:[<ffffffffa00db5ae>] [<ffffffffa00db5ae>] ext3_orphan_add+0x6a/0x1eb [ext3] kernel: RSP: 0018:ffff8801124d5cc8 EFLAGS: 00010202 kernel: RAX: 0000000000000000 RBX: ffff880111510128 RCX: ffff8801114683a0 kernel: RDX: 0000000000000000 RSI: ffff880111510128 RDI: ffff88010fcf65a8 kernel: RBP: ffff8801124d5d18 R08: 0080000000000000 R09: ffffffffa00d3b7f kernel: R10: ffff8801114683a0 R11: ffff8801032a2558 R12: 0000000000000000 kernel: R13: ffff88010fcf6800 R14: ffff8801032a2558 R15: ffff8801115100d8 kernel: FS: 00007f5d172b5700(0000) GS:ffff880117c00000(0000) knlGS:0000000000000000 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b kernel: CR2: 00007f5d16df15d0 CR3: 0000000110b1d000 CR4: 00000000000407f0 kernel: Stack: kernel: 000000000000000c ffff8801048a7dc8 ffff8801114685a8 ffffffffa00b80d7 kernel: ffff8801124d5e38 ffff8801032a2558 ffff88010ce24d68 0000000000000000 kernel: ffff88011146b300 ffff8801124d5d44 ffff8801124d5d78 ffffffffa00db7e1 kernel: Call Trace: kernel: [<ffffffffa00b80d7>] ? journal_start+0x8c/0xbd [jbd] kernel: [<ffffffffa00db7e1>] ext3_tmpfile+0xb2/0x13b [ext3] kernel: [<ffffffff821076f8>] path_openat+0x11f/0x5e7 kernel: [<ffffffff821c86b4>] ? list_del+0x11/0x30 kernel: [<ffffffff82065fa2>] ? __dequeue_entity+0x33/0x38 kernel: [<ffffffff82107cd5>] do_filp_open+0x3f/0x8d kernel: [<ffffffff82112532>] ? __alloc_fd+0x50/0x102 kernel: [<ffffffff820f9296>] do_sys_open+0x13b/0x1cd kernel: [<ffffffff820f935c>] SyS_open+0x1e/0x20 kernel: [<ffffffff82398c02>] system_call_fastpath+0x16/0x1b kernel: Code: 39 c7 0f 85 67 01 00 00 0f b7 03 25 00 f0 00 00 3d 00 40 00 00 74 18 3d 00 80 00 00 74 11 3d 00 a0 00 00 74 0a 83 7b 48 00 74 04 <0f> 0b eb fe 49 8b 85 50 03 00 00 4c 89 f6 48 c7 c7 c0 99 0e a0 kernel: RIP [<ffffffffa00db5ae>] ext3_orphan_add+0x6a/0x1eb [ext3] kernel: RSP <ffff8801124d5cc8> Here we couldn't call clear_nlink() directly because in d_tmpfile() we will call inode_dec_link_count() to decrease ->i_nlink. So this commit tries to call d_tmpfile() before ext4_orphan_add() to fix this problem. Signed-off-by:
Zheng Liu <wenqing.lz@taobao.com> Signed-off-by:
"Theodore Ts'o" <tytso@mit.edu> Cc: Jan Kara <jack@suse.cz> Cc: Al Viro <viro@zeniv.linux.org.uk>
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Zheng Liu authored
When we try to open a file with O_TMPFILE flag, we will trigger a bug. The root cause is that in ext4_orphan_add() we check ->i_nlink == 0 and this check always fails because we set ->i_nlink = 1 in inode_init_always(). We can use the following program to trigger it: int main(int argc, char *argv[]) { int fd; fd = open(argv[1], O_TMPFILE, 0666); if (fd < 0) { perror("open "); return -1; } close(fd); return 0; } The oops message looks like this: kernel BUG at fs/ext4/namei.c:2572! invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC Modules linked in: dlci bridge stp hidp cmtp kernelcapi l2tp_ppp l2tp_netlink l2tp_core sctp libcrc32c rfcomm tun fuse nfnetli nk can_raw ipt_ULOG can_bcm x25 scsi_transport_iscsi ipx p8023 p8022 appletalk phonet psnap vmw_vsock_vmci_transport af_key vmw_vmci rose vsock atm can netrom ax25 af_rxrpc ir da pppoe pppox ppp_generic slhc bluetooth nfc rfkill rds caif_socket caif crc_ccitt af_802154 llc2 llc snd_hda_codec_realtek snd_hda_intel snd_hda_codec serio_raw snd_pcm pcsp kr edac_core snd_page_alloc snd_timer snd soundcore r8169 mii sr_mod cdrom pata_atiixp radeon backlight drm_kms_helper ttm CPU: 1 PID: 1812571 Comm: trinity-child2 Not tainted 3.11.0-rc1+ #12 Hardware name: Gigabyte Technology Co., Ltd. GA-MA78GM-S2H/GA-MA78GM-S2H, BIOS F12a 04/23/2010 task: ffff88007dfe69a0 ti: ffff88010f7b6000 task.ti: ffff88010f7b6000 RIP: 0010:[<ffffffff8125ce69>] [<ffffffff8125ce69>] ext4_orphan_add+0x299/0x2b0 RSP: 0018:ffff88010f7b7cf8 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffff8800966d3020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88007dfe70b8 RDI: 0000000000000001 RBP: ffff88010f7b7d40 R08: ffff880126a3c4e0 R09: ffff88010f7b7ca0 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801271fd668 R13: ffff8800966d2f78 R14: ffff88011d7089f0 R15: ffff88007dfe69a0 FS: 00007f70441a3740(0000) GS:ffff88012a800000(0000) knlGS:00000000f77c96c0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002834000 CR3: 0000000107964000 CR4: 00000000000007e0 DR0: 0000000000780000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Stack: 0000000000002000 00000020810b6dde 0000000000000000 ffff88011d46db00 ffff8800966d3020 ffff88011d7089f0 ffff88009c7f4c10 ffff88010f7b7f2c ffff88007dfe69a0 ffff88010f7b7da8 ffffffff8125cfac ffff880100000004 Call Trace: [<ffffffff8125cfac>] ext4_tmpfile+0x12c/0x180 [<ffffffff811cba78>] path_openat+0x238/0x700 [<ffffffff8100afc4>] ? native_sched_clock+0x24/0x80 [<ffffffff811cc647>] do_filp_open+0x47/0xa0 [<ffffffff811db73f>] ? __alloc_fd+0xaf/0x200 [<ffffffff811ba2e4>] do_sys_open+0x124/0x210 [<ffffffff81010725>] ? syscall_trace_enter+0x25/0x290 [<ffffffff811ba3ee>] SyS_open+0x1e/0x20 [<ffffffff816ca8d4>] tracesys+0xdd/0xe2 [<ffffffff81001001>] ? start_thread_common.constprop.6+0x1/0xa0 Code: 04 00 00 00 89 04 24 31 c0 e8 c4 77 04 00 e9 43 fe ff ff 66 25 00 d0 66 3d 00 80 0f 84 0e fe ff ff 83 7b 48 00 0f 84 04 fe ff ff <0f> 0b 49 8b 8c 24 50 07 00 00 e9 88 fe ff ff 0f 1f 84 00 00 00 Here we couldn't call clear_nlink() directly because in d_tmpfile() we will call inode_dec_link_count() to decrease ->i_nlink. So this commit tries to call d_tmpfile() before ext4_orphan_add() to fix this problem. Reported-by:
Dave Jones <davej@redhat.com> Signed-off-by:
Zheng Liu <wenqing.lz@taobao.com> Tested-by:
Darrick J. Wong <darrick.wong@oracle.com> Tested-by:
Dave Jones <davej@redhat.com> Signed-off-by:
"Theodore Ts'o" <tytso@mit.edu> Acked-by:
Al Viro <viro@zeniv.linux.org.uk>
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- 20 Jul, 2013 7 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging tree fixes from Greg KH: "Here are a few iio driver fixes for 3.11-rc2. They are still spread across drivers/iio and drivers/staging/iio so they are coming in through this tree. I've also removed the drivers/staging/csr/ driver as the developers who originally sent it to me have moved on to other companies, and CSR still will not send us the specs for the device, making the driver pretty much obsolete and impossible to fix up. Deleting it now prevents people from sending in lots of tiny codingsyle fixes that will never go anywhere. It also helps to offset the large lustre filesystem merge that happened in 3.11-rc1 in the overall 3.11.0 diffstat. :)" * tag 'staging-3.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: csr: remove driver iio: lps331ap: Fix wrong in_pressure_scale output value iio staging: fix lis3l02dq, read error handling staging:iio:ad7291: add missing .driver_module to struct iio_info iio: ti_am335x_adc: add missing .driver_module to struct iio_info iio: mxs-lradc: Remove useless check in read_raw iio: mxs-lradc: Fix misuse of iio->trig iio: inkern: fix iio_convert_raw_to_processed_unlocked iio: Fix iio_channel_has_info iio:trigger: device_unregister->device_del to avoid double free iio: dac: ad7303: fix error return code in ad7303_probe()
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs fixes from Al Viro: "The sget() one is a long-standing bug and will need to go into -stable (in fact, it had been originally caught in RHEL6), the other two are 3.11-only" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: vfs: constify dentry parameter in d_count() livelock avoidance in sget() allow O_TMPFILE to work with O_WRONLY
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
Pull ext4 bugfixes from Ted Ts'o: "Fixes for 3.11-rc2, sent at 5pm, in the professoinal style. :-)" I'm not sure I like this new level of "professionalism". 9-5, people, 9-5. * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: call ext4_es_lru_add() after handling cache miss ext4: yield during large unlinks ext4: make the extent_status code more robust against ENOMEM failures ext4: simplify calculation of blocks to free on error ext4: fix error handling in ext4_ext_truncate()
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git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds authored
Pull NFS client bugfixes from Trond Myklebust: - Fix a regression against NFSv4 FreeBSD servers when creating a new file - Fix another regression in rpc_client_register() * tag 'nfs-for-3.11-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFSv4: Fix a regression against the FreeBSD server SUNRPC: Fix another issue with rpc_client_register()
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git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-nextLinus Torvalds authored
Pull btrfs fixes from Josef Bacik: "I'm playing the role of Chris Mason this week while he's on vacation. There are a few critical fixes for btrfs here, all regressions and have been tested well" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next: Btrfs: fix wrong write offset when replacing a device Btrfs: re-add root to dead root list if we stop dropping it Btrfs: fix lock leak when resuming snapshot deletion Btrfs: update drop progress before stopping snapshot dropping
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Peng Tao authored
so that it can be used in places like d_compare/d_hash without causing a compiler warning. Signed-off-by:
Peng Tao <tao.peng@emc.com> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Eric Sandeen has found a nasty livelock in sget() - take a mount(2) about to fail. The superblock is on ->fs_supers, ->s_umount is held exclusive, ->s_active is 1. Along comes two more processes, trying to mount the same thing; sget() in each is picking that superblock, bumping ->s_count and trying to grab ->s_umount. ->s_active is 3 now. Original mount(2) finally gets to deactivate_locked_super() on failure; ->s_active is 2, superblock is still ->fs_supers because shutdown will *not* happen until ->s_active hits 0. ->s_umount is dropped and now we have two processes chasing each other: s_active = 2, A acquired ->s_umount, B blocked A sees that the damn thing is stillborn, does deactivate_locked_super() s_active = 1, A drops ->s_umount, B gets it A restarts the search and finds the same superblock. And bumps it ->s_active. s_active = 2, B holds ->s_umount, A blocked on trying to get it ... and we are in the earlier situation with A and B switched places. The root cause, of course, is that ->s_active should not grow until we'd got MS_BORN. Then failing ->mount() will have deactivate_locked_super() shut the damn thing down. Fortunately, it's easy to do - the key point is that grab_super() is called only for superblocks currently on ->fs_supers, so it can bump ->s_count and grab ->s_umount first, then check MS_BORN and bump ->s_active; we must never increment ->s_count for superblocks past ->kill_sb(), but grab_super() is never called for those. The bug is pretty old; we would've caught it by now, if not for accidental exclusion between sget() for block filesystems; the things like cgroup or e.g. mtd-based filesystems don't have anything of that sort, so they get bitten. The right way to deal with that is obviously to fix sget()... Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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- 19 Jul, 2013 8 commits
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/rw/umlLinus Torvalds authored
Pull UML fixes from Richard Weinberger: "Special thanks goes to Toralf Föster for continuously testing UML and reporting issues!" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: remove dead code um: siginfo cleanup uml: Fix which_tmpdir failure when /dev/shm is a symlink, and in other edge cases um: Fix wait_stub_done() error handling um: Mark stub pages mapping with VM_PFNMAP um: Fix return value of strnlen_user()
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git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds authored
Pull MIPS fixes from Ralf Baechle: "MIPS fixes for 3.11. Half of then is for Netlogic the remainder touches things across arch/mips. Nothing really dramatic and by rc1 standards MIPS will be in fairly good shape with this applied. Tested by building all MIPS defconfigs of which with this pull request four platforms won't build. And yes, it boots also on my favorite test systems" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: kvm: Kconfig: Drop HAVE_KVM dependency from VIRTUALIZATION MIPS: Octeon: Fix DT pruning bug with pip ports MIPS: KVM: Mark KVM_GUEST (T&E KVM) as BROKEN_ON_SMP MIPS: tlbex: fix broken build in v3.11-rc1 MIPS: Netlogic: Add XLP PIC irqdomain MIPS: Netlogic: Fix USB block's coherent DMA mask MIPS: tlbex: Fix typo in r3000 tlb store handler MIPS: BMIPS: Fix thinko to release slave TP from reset MIPS: Delete dead invocation of exception_exit().
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git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64Linus Torvalds authored
Pull arm64 fixes from Catalin Marinas: - Post -rc1 update to the common reboot infrastructure. - Fixes (user cache maintenance fault handling, !COMPAT compilation, CPU online and interrupt hanlding). * tag 'arm64-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: arm64: use common reboot infrastructure arm64: mm: don't treat user cache maintenance faults as writes arm64: add '#ifdef CONFIG_COMPAT' for aarch32_break_handler() arm64: Only enable local interrupts after the CPU is marked online
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 fixes from Martin Schwidefsky: "An update for the BFP jit to the latest and greatest, two patches to get kdump working again, the random-abort ptrace extention for transactional execution, the z90crypt module alias for ap and a tiny cleanup" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/zcrypt: Alias for new zcrypt device driver base module s390/kdump: Allow copy_oldmem_page() copy to virtual memory s390/kdump: Disable mmap for s390 s390/bpf,jit: add pkt_type support s390/bpf,jit: address randomize and write protect jit code s390/bpf,jit: use generic jit dumper s390/bpf,jit: call module_free() from any context s390/qdio: remove unused variable s390/ptrace: PTRACE_TE_ABORT_RAND
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Stefan Behrens authored
Miao Xie reported the following issue: The filesystem was corrupted after we did a device replace. Steps to reproduce: # mkfs.btrfs -f -m single -d raid10 <device0>..<device3> # mount <device0> <mnt> # btrfs replace start -rfB 1 <device4> <mnt> # umount <mnt> # btrfsck <device4> The reason for the issue is that we changed the write offset by mistake, introduced by commit 625f1c8d. We read the data from the source device at first, and then write the data into the corresponding place of the new device. In order to implement the "-r" option, the source location is remapped using btrfs_map_block(). The read takes place on the mapped location, and the write needs to take place on the unmapped location. Currently the write is using the mapped location, and this commit changes it back by undoing the change to the write address that the aforementioned commit added by mistake. Reported-by:
Miao Xie <miaox@cn.fujitsu.com> Cc: <stable@vger.kernel.org> # 3.10+ Signed-off-by:
Stefan Behrens <sbehrens@giantdisaster.de> Signed-off-by:
Josef Bacik <jbacik@fusionio.com>
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Josef Bacik authored
If we stop dropping a root for whatever reason we need to add it back to the dead root list so that we will re-start the dropping next transaction commit. The other case this happens is if we recover a drop because we will add a root without adding it to the fs radix tree, so we can leak it's root and commit root extent buffer, adding this to the dead root list makes this cleanup happen. Thanks, Cc: stable@vger.kernel.org Reported-by:
Alex Lyakas <alex.btrfs@zadarastorage.com> Signed-off-by:
Josef Bacik <jbacik@fusionio.com>
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Josef Bacik authored
We aren't setting path->locks[level] when we resume a snapshot deletion which means we won't unlock the buffer when we free the path. This causes deadlocks if we happen to re-allocate the block before we've evicted the extent buffer from cache. Thanks, Cc: stable@vger.kernel.org Reported-by:
Alex Lyakas <alex.btrfs@zadarastorage.com> Signed-off-by:
Josef Bacik <jbacik@fusionio.com>
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