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2017-11-28arm64: dts: renesas: r8a77995: Add CAN FD supportUlrich Hecht1-0/+25
Adds CAN FD controller node for r8a77995. Based on a patch for r8a7796 by Chris Paterson. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: r8a77995: Add CAN supportUlrich Hecht1-0/+32
Adds CAN controller nodes for r8a77995. Based on a patch for r8a7796 by Chris Paterson. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: r8a77995: Add CAN external clock supportUlrich Hecht1-0/+7
Adds external CAN clock node for r8a77995. This clock can be used as fCAN clock of CAN and CAN FD controller. Based on a patch for r8a7796 by Chris Paterson. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: r8a7795-salvator-xs: Add SoC name to file headerGeert Uytterhoeven1-1/+1
Document clearly which SoC this DTS applies to, to distinguish from Salvator-XS boards equipped with other SoCs. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: r8a7796-salvator-x: Add SoC name to file headerGeert Uytterhoeven1-1/+1
Document clearly which SoC this DTS applies to, to distinguish from Salvator-X boards equipped with other SoCs. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: r8a7795-salvator-x: Add SoC name to file headerGeert Uytterhoeven1-1/+1
Document clearly which SoC this DTS applies to, to distinguish from Salvator-X boards equipped with other SoCs. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: r8a7795-es1-salvator-x: Add SoC name to file headerGeert Uytterhoeven1-1/+1
Document clearly which SoC this DTS applies to, to distinguish from Salvator-X boards equipped with other SoCs. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: salvator-common: Add BD9571 PMICGeert Uytterhoeven1-0/+29
Add a device node for the ROHM BD9571MWV PMIC. This was based on the example in the DT binding documentation, but using IRQ0 instead of a GPIO interrupt, as that matches the schematics, and because INTC-EX is a simpler block. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: r8a7795: Enable IPMMU-VI0, VP1, DS0, DS1 and MMMagnus Damm1-5/+0
Enable the r8a7795 device nodes for IPMMU-VI0, IPMMU-VP1, IPMMU-DS0, IPMMU-DS1 and the shared IPMMU-MM device. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795-es1: Enable IPMMU-MP1Magnus Damm1-1/+0
Enable the r8a7795 ES1.x device node for IPMMU-MP1. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795: Connect SATA to IPMMU-HCMagnus Damm1-0/+1
Add IPMMU-HC to the SATA device node. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795: Connect Ethernet-AVB to IPMMU-DS0Magnus Damm1-0/+1
Add IPMMU-DS0 to the Ethernet-AVB device node. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795-es1: Point VSPI via FCPVI to IPMMU-VPMagnus Damm1-0/+1
Hook up the FCPVI devices to allow use of VSPI with IPMMU-VP. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795: Point VSPI via FCPVI to IPMMU-VP0/1Magnus Damm2-0/+6
Hook up the FCPVI devices to allow use of VSPI with IPMMU-VP0 and IPMMU-VP1. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795: Point VSPBC/VSPBD via FCPVB to IPMMU-VP0/1Magnus Damm2-0/+6
Hook up the FCPVB devices to allow use of VSPBC/VSPBD with IPMMU-VP0 and IPMMU-VP1. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795-es1: Point FDP1 via FCPF to IPMMU-VP0Magnus Damm1-0/+1
Hook up the FCPF devices to allow use of FDP1 with IPMMU-VP0. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795: Point FDP1 via FCPF to IPMMU-VP0/1Magnus Damm2-0/+6
Hook up the FCPF devices to allow use of FDP1 with IPMMU-VP. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795-es1: Point DU/VSPD via FCPVD to IPMMU-VI0Magnus Damm1-0/+1
Hook up the FCPVD devices to allow use of the VSP and DU together with IPMMU-VI0. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795: Point DU/VSPD via FCPVD to IPMMU-VI0/1Magnus Damm2-0/+7
Hook up the FCPVD devices to allow use of the VSP and DU together with IPMMU-VI1 and IPMMU-VI1. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795: Tie Audio-DMAC to IPMMU-MP0/1Magnus Damm2-0/+38
Hook up r8a7795 ES2.0 Audio-DMAC nodes to the IPMMU-MP0. Hook up r8a7795 ES1.x Audio-DMAC nodes to the IPMMU-MP1. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795: Tie SYS-DMAC to IPMMU-DS0/1Magnus Damm1-0/+24
Hook up r8a7795 SYS-DMAC nodes to the IPMMUs. In particular SYS-DMAC0 gets tied to IPMMU-DS0, and SYS-DMAC1 and SYS-DMAC2 get tied to IPMMU-DS1. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795-es1: Add IPMMU device nodesMagnus Damm1-0/+16
Add r8a7795 ES1.x IPMMU nodes and keep all disabled by default. This is a follow-up to a patch that adds IPMMU device nodes that are common to r8a7795 ES1.x and ES2.0 Power domains are omitted as they appear to be undocumented. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7795: Add IPMMU device nodesMagnus Damm2-0/+170
Add r8a7795 IPMMU nodes and keep all disabled by default. This includes all IPMMU devices for r8a7795 ES2.0. Those not present in r8a7795 ES1.x are removed from the DT for those SoCs using delete-node. A follow-up patch will add IPMMU devices to ES1.x which are not also present in ES2.0. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a77995: Add SDHI (MMC) supportUlrich Hecht1-0/+12
R-Car D3 has only one SDHI controller. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: r8a77995: add SYS-DMAC nodesUlrich Hecht1-0/+72
Differs from other Gen3 SoCs in that each controller only supports eight channels. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: ulcb-kf: add dr_mode property for USB2.0 channel 0Vladimir Barinov1-0/+3
ULCB-KF has a USB2.0 dual-role channel (CN13). This adds dr_mode property for USB2.0 channel 0 (EHCI/OHCI and HS-USB) as "otg". Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: ulcb-kf: enable USB2 PHY of channel 0Vladimir Barinov1-0/+26
This supports USB2 PHY channel #0 on ULCB Kingfisher board The dedicated USB0_PWEN pin is used to control CN13 VBUS source from U43 power supply. MAX3355 can also provide VBUS, hence it should be disabled via OTG_OFFVBUSn node coming from gpio expander TCA9539. Set MAX3355 enabled using OTG_EXTLPn node to be able to read OTG ID of CN13. Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: r8a7796: Enable IPMMU-DS0, DS1, MP, VI0, VC0 and MMMagnus Damm1-6/+0
Enable the r8a7795 device nodes for IPMMU-DS0, IPMMU-DS1, IPMMU-MP, IPMMU-VI0, IPMMU-VC0 and the shared IPMMU-MM device. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7796: Connect Ethernet-AVB to IPMMU-DS0Simon Horman1-0/+1
Add IPMMU-DS0 to the Ethernet-AVB device node. Based on work by Magnus Damm for the r8a7795. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7796: Point VSPI via FCPVI to IPMMU-VC0Simon Horman1-0/+1
Hook up the FCPVI devices to allow use of VSPI with IPMMU-VC0. Based on work for the r8a7795 by Magnus Damm. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7796: Point FDP1 via FCPF to IPMMU-VI0Simon Horman1-0/+3
Hook up the FCPF devices to allow use of FDP1 with IPMMU-VI0. Based on work by Magnus Damm for the r8a7795. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7796: Tie Audio-DMAC to IPMMU-MPSimon Horman1-0/+16
Hook up r8a7796 Audio-DMAC nodes to the IPMMU-MP. Based on work for the r8a7795 by Magnus Damm. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7796: Tie SYS-DMAC to IPMMU-DS0/1Magnus Damm1-0/+24
Hook up r8a7796 DMAC nodes to the IPMMUs. In particular SYS-DMAC0 gets tied to IPMMU-DS0, and SYS-DMAC1 and SYS-DMAC2 get tied to IPMMU-DS1. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: r8a7796: Add IPMMU device nodesMagnus Damm1-0/+100
Add r8a7796 IPMMU nodes and keep all disabled by default. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-11-28arm64: dts: renesas: Add support for Salvator-XS with R-Car M3-WGeert Uytterhoeven2-0/+59
Add initial support for the Renesas Salvator-XS (Salvator-X 2nd version) development board equipped with an R-Car M3-W SiP. Based on work for the Salvator-X and -XS boards with M3-W resp. H3 SiPs. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: eagle: Enable watchdog timerGeert Uytterhoeven1-0/+5
Enable the Watchdog Timer (WDT) controller on the Renesas Eagle board equipped with an R-Car V3M (r8a77970) SoC. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: eagle: Move avb node to preserve sort orderGeert Uytterhoeven1-11/+11
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: r8a77970: Add RWDT nodeGeert Uytterhoeven1-0/+10
Add a device node for the Watchdog Timer (WDT) controller on the Renesas R-Car V3M (r8a77970) SoC. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: r8a7796: Use R-Car SDHI Gen3 fallback compat stringSimon Horman1-4/+8
Use newly added R-Car SDHI Gen3 fallback compat string in the DT of the r8a7796 SoC. This should have no run-time effect as the driver matches against the per-SoC compat string before considering the fallback compat string. Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: r8a7795: Use R-Car SDHI Gen3 fallback compat stringSimon Horman1-4/+8
Use newly added R-Car SDHI Gen3 fallback compat string in the DT of the r8a7795 SoC. This should have no run-time effect as the driver matches against the per-SoC compat string before considering the fallback compat string. Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-28arm64: dts: renesas: salvator: set driver type for eMMCWolfram Sang1-0/+1
These boards are known to have eMMC issues with the default driver type. Specify a working one. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-11-26Linux 4.15-rc1Linus Torvalds1-2/+2
2017-11-26ARM: BUG if jumping to usermode address in kernel modeRussell King2-0/+24
Detect if we are returning to usermode via the normal kernel exit paths but the saved PSR value indicates that we are in kernel mode. This could occur due to corrupted stack state, which has been observed with "ftracetest". This ensures that we catch the problem case before we get to user code. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-11-24m68k/macboing: Fix missed timer callback assignmentKees Cook1-2/+2
This fixes a missed function prototype callback from the timer conversions. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20171123221902.GA75727@beast
2017-11-24afs: remove redundant assignment of dvnode to itselfColin Ian King1-1/+1
The assignment of dvnode to itself is redundant and can be removed. Cleans up warning detected by cppcheck: fs/afs/dir.c:975: (warning) Redundant assignment of 'dvnode' to itself. Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David Howells <dhowells@redhat.com>
2017-11-24afs: cell: Remove unnecessary code in afs_lookup_cellGustavo A. R. Silva1-6/+1
Due to recent changes this piece of code is no longer needed. Addresses-Coverity-ID: 1462033 Link: https://lkml.kernel.org/r/4923.1510957307@warthog.procyon.org.uk Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: David Howells <dhowells@redhat.com>
2017-11-24afs: Fix signal handling in some file opsDavid Howells1-0/+8
afs_mkdir(), afs_create(), afs_link() and afs_symlink() all need to drop the target dentry if a signal causes the operation to be killed immediately before we try to contact the server. Signed-off-by: David Howells <dhowells@redhat.com>
2017-11-24afs: Fix some dentry handling in dir ops and missing key_putsDavid Howells1-10/+5
Fix some of dentry handling in AFS directory ops: (1) Do d_drop() on the new_dentry before assigning a new inode to it in afs_vnode_new_inode(). It's fine to do this before calling afs_iget() because the operation has taken place on the server. (2) Replace d_instantiate()/d_rehash() with d_add(). (3) Don't d_drop() the new_dentry in afs_rename() on error. Also fix afs_link() and afs_rename() to call key_put() on all error paths where the key is taken. Signed-off-by: David Howells <dhowells@redhat.com>
2017-11-24afs: Make afs_write_begin() avoid writing to a page that's being storedDavid Howells1-0/+5
Make afs_write_begin() wait for a page that's marked PG_writeback because: (1) We need to avoid interference with the data being stored so that the data on the server ends up in a defined state. (2) page->private is used to track the window of dirty data within a page, but it's also used by the storage code to track what's being written, being cleared by the completion notification. Ownership can't be relinquished by the storage code until completion because it a store fails, the data must be remarked dirty. Tracing shows something like the following (edited): x86_64-linux-gn-15940 [1] afs_page_dirty: vn=ffff8800bef33800 9c75 begin 0-125 kworker/u8:3-114 [2] afs_page_dirty: vn=ffff8800bef33800 9c75 store+ 0-125 x86_64-linux-gn-15940 [1] afs_page_dirty: vn=ffff8800bef33800 9c75 begin 0-2052 kworker/u8:3-114 [2] afs_page_dirty: vn=ffff8800bef33800 9c75 clear 0-2052 kworker/u8:3-114 [2] afs_page_dirty: vn=ffff8800bef33800 9c75 store 0-0 kworker/u8:3-114 [2] afs_page_dirty: vn=ffff8800bef33800 9c75 WARN 0-0 The clear (completion) corresponding to the store+ (store continuation from a previous page) happens between the second begin (afs_write_begin) and the store corresponding to that. This results in the second store not seeing any data to write back, leading to the following warning: WARNING: CPU: 2 PID: 114 at ../fs/afs/write.c:403 afs_write_back_from_locked_page+0x19d/0x76c [kafs] Modules linked in: kafs(E) CPU: 2 PID: 114 Comm: kworker/u8:3 Tainted: G E 4.14.0-fscache+ #242 Hardware name: ASUS All Series/H97-PLUS, BIOS 2306 10/09/2014 Workqueue: writeback wb_workfn (flush-afs-2) task: ffff8800cad72600 task.stack: ffff8800cad44000 RIP: 0010:afs_write_back_from_locked_page+0x19d/0x76c [kafs] RSP: 0018:ffff8800cad47aa0 EFLAGS: 00010246 RAX: 0000000000000001 RBX: ffff8800bef33a20 RCX: 0000000000000000 RDX: 000000000000000f RSI: ffffffff81c5d0e0 RDI: ffff8800cad72e78 RBP: ffff8800d31ea1e8 R08: ffff8800c1358000 R09: ffff8800ca00e400 R10: ffff8800cad47a38 R11: ffff8800c5d9e400 R12: 0000000000000000 R13: ffffea0002d9df00 R14: ffffffffa0023c1c R15: 0000000000007fdf FS: 0000000000000000(0000) GS:ffff8800ca700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f85ac6c4000 CR3: 0000000001c10001 CR4: 00000000001606e0 Call Trace: ? clear_page_dirty_for_io+0x23a/0x267 afs_writepages_region+0x1be/0x286 [kafs] afs_writepages+0x60/0x127 [kafs] do_writepages+0x36/0x70 __writeback_single_inode+0x12f/0x635 writeback_sb_inodes+0x2cc/0x452 __writeback_inodes_wb+0x68/0x9f wb_writeback+0x208/0x470 ? wb_workfn+0x22b/0x565 wb_workfn+0x22b/0x565 ? worker_thread+0x230/0x2ac process_one_work+0x2cc/0x517 ? worker_thread+0x230/0x2ac worker_thread+0x1d4/0x2ac ? rescuer_thread+0x29b/0x29b kthread+0x15d/0x165 ? kthread_create_on_node+0x3f/0x3f ? call_usermodehelper_exec_async+0x118/0x11f ret_from_fork+0x24/0x30 Signed-off-by: David Howells <dhowells@redhat.com>
2017-11-24sched/debug: Fix task state recording/printoutThomas Gleixner1-3/+3
The recent conversion of the task state recording to use task_state_index() broke the sched_switch tracepoint task state output. task_state_index() returns surprisingly an index (0-7) which is then printed with __print_flags() applying bitmasks. Not really working and resulting in weird states like 'prev_state=t' instead of 'prev_state=I'. Use TASK_REPORT_MAX instead of TASK_STATE_MAX to report preemption. Build a bitmask from the return value of task_state_index() and store it in entry->prev_state, which makes __print_flags() work as expected. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: stable@vger.kernel.org Fixes: efb40f588b43 ("sched/tracing: Fix trace_sched_switch task-state printing") Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1711221304180.1751@nanos Signed-off-by: Ingo Molnar <mingo@kernel.org>
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