summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2017-09-05mfd: syscon: atmel-smc: Add helper to retrieve register layoutLudovic Desroches
For HSMC controller, the register layout depends on the device i.e. the offset of setup, pulse, cycle, mode and timings registers is not the same. An helper is added to provide the correct register layout. Fixes: fe9d7cb22ef3 ("mfd: syscon: atmel-smc: Add new helpers to ease SMC regs manipulation") Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: axp20x: Use correct platform device ID for many PEKQuentin Schulz
According to their datasheets, the AXP221, AXP223, AXP288, AXP803, AXP809 and AXP813 PEK have different values for startup time bits from the AXP20X, let's use the platform device id with the correct values. Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05dt-bindings: mfd: axp20x: Introduce bindings for AXP813Chen-Yu Tsai
The X-Powers AXP813 is a PMIC designed to be paired with Allwinner's A83T SoC. There is also an AXP818, which is paired with the H8 SoC. The two models seem to be identical, apart from the external markings. This patch introduces the basic mfd and regulator bindings for the AXP813. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: axp20x: Add support for AXP813 PMICChen-Yu Tsai
The X-Powers AXP813 PMIC is normally used with Allwinner's A83T SoC. It has the same range of functions as other X-Powers PMICs, such as DC-DC buck converter and linear regulator outputs, AC-IN and VBUS power supplies, power button trigger, GPIOs, ADCs, and a battery charger. Note that the IRQ table given in the datasheet is incorrect: in IRQ enable/status registers 1, there are separate IRQs for ACIN and VBUS, instead of bits [7:5] being the same as bits [4:2]. So it shares the same IRQs as the AXP803, rather than the AXP288. This patch adds basic mfd support for it, with only the power button enabled. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05dt-bindings: mfd: axp20x: Add AXP806 to supported list of chipsChen-Yu Tsai
The binding already lists compatibles and regulators for the AXP806, but it is missing from the list of supported chips at the beginning. Add it. Fixes: 204ae2963e10 ("mfd: axp20x: Add bindings for AXP806 PMIC") Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: Add ROHM BD9571MWV-M MFD PMIC driverMarek Vasut
Add the MFD part of the ROHM BD9571MWV-M PMIC driver and MAINTAINERS entry. The MFD part only specifies the regmap bits for the PMIC and binds the subdevs together. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: hi6421-pmic: Add support for HiSilicon Hi6421v530Guodong Xu
Add support for HiSilicon Hi6421v530 PMIC. Hi6421v530 communicates with main SoC via memory-mapped I/O. Hi6421v530 and Hi6421 are PMIC chips from the same vendor, HiSilicon, but at different revisions. They share the same memory-mapped I/O design. They differ in integrated devices, such as regulator details, LDO voltage points. Signed-off-by: Guodong Xu <guodong.xu@linaro.org> Signed-off-by: Wang Xiaoyin <hw.wangxiaoyin@hisilicon.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: hi6421-pmic: Update dev_err messagesGuodong Xu
Update dev_err messages to make them more readable. Signed-off-by: Guodong Xu <guodong.xu@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: hi6421-pmic: Change license text to shorter formGuodong Xu
Change license text to a shorter form of GPLv2. Signed-off-by: Guodong Xu <guodong.xu@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: Kconfig: Add missing Kconfig dependency for TPS65086Michal Simek
MTF_CORE should be enabled when driver is enabled. Without this patch you can configure: CONFIG_MFD_CORE is not set CONFIG_MFD_TPS65086=y ... which ends up with compilation error: drivers/mfd/tps65086.o: In function `tps65086_probe': drivers/mfd/tps65086.c:110: undefined reference to `mfd_add_devices' drivers/mfd/tps65086.c:110:(.text+0x128): relocation truncated to fit: \ R_AARCH64_CALL26 against undefined symbol `mfd_add_devices' Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: syscon: Update Atmel SMC binding docLudovic Desroches
A new compatible string is introduced for SMC on sama5d2 to manage a different layout of the registers. Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com> │Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: ab8500-core: Constify attribute_group structuresArvind Yadav
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 16298 1009 184 17491 4453 drivers/mfd/ab8500-core.o File size After adding 'const': text data bss dec hex filename 16490 817 184 17491 4453 drivers/mfd/ab8500-core.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05dt-bindings: mfd: da9052: Support TSI as ADCSebastian Reichel
DA9052 allows using the touchscreen input pins as general purpose analogue input pin by wiring analogue inputs to X+, X-, Y+ and Y- and providing a reference voltage at TSIREF pin. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: max8998: Fix potential NULL pointer dereferenceChristophe JAILLET
if 'max8998_i2c_parse_dt_pdata() fails (when out of memory), a NULL pointer dereference will occur in the error handling code. Return directly instead. Fixes: ee999fb3f17f("mfd: max8998: Add support for Device Tree") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: max8925-i2c: Drop unnecessary staticJulia Lawall
Drop static on a local variable, when the variable is initialized before any use, on every possible execution path through the function. The static has no benefit, and dropping it reduces the code size. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @bad exists@ position p; identifier x; type T; @@ static T x@p; ... x = <+...x...+> @@ identifier x; expression e; type T; position p != bad.p; @@ -static T x@p; ... when != x when strict ?x = e; // </smpl> The change in code size is indicates by the following output from the size command. before: text data bss dec hex filename 2579 240 16 2835 b13 drivers/mfd/max8925-i2c.o after: text data bss dec hex filename 2531 240 8 2779 adb drivers/mfd/max8925-i2c.o Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: da9052: Fix manual ADC read after timed out readSebastian Reichel
It is possible that under heavy system load, the counter in the completion struct, used for waiting for end of AD conversion, gets incremented twice. To make sure the driver recovers from this situation, the completion struct should be reinitialized. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: rtsx: Make arrays depth and cd_mask static constColin Ian King
Don't populate the arrays depath and cd_mask on the stack but make them static const. Makes the object code smaller: text data bss dec hex filename 25413 7216 448 33077 8135 drivers/mfd/rtsx_pcr.o text data bss dec hex filename 25151 7360 448 32959 80bf drivers/mfd/rtsx_pcr.o Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: twl-core: Improve the documentationDan Carpenter
Saying it "returns the result" seems tautological. The read function does not return num_bytes on success, it returns zero on success. I noticed this discrepancy because some of the callers were checking for >= 0. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05Merge branches 'ib-mfd-arm-i2c-4.14', 'ib-mfd-arm-usb-video-4.14', ↵Lee Jones
'ib-mfd-hwmon-4.14', 'ib-mfd-iio-pwm-4.14', 'ib-mfd-input-rtc-4.14', 'ib-mfd-many-4.14' and 'ib-mfd-pinctrl-regulator-4.14' into ibs-for-mfd-merged
2017-09-05dt-bindings: rtc: Add Realtek RTD1295Andreas Färber
Add a binding for the RTC on the Realtek RTD119x/RTD129x SoC families. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-09-05mac80211: fix incorrect assignment of reassoc valueSimon Dinkin
this fix minor issue in the log message. in ieee80211_rx_mgmt_assoc_resp function, when assigning the reassoc value from the mgmt frame control: ieee80211_is_reassoc_resp function need to be used, instead of ieee80211_is_reassoc_req function. Signed-off-by: Simon Dinkin <simon.dinkin@tandemg.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-09-05Merge tag 'perf-core-for-mingo-4.14-20170901' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: - Support syscall name glob matching in 'perf trace' (Arnaldo Carvalho de Melo) e.g.: # perf trace -e pkey_* 32.784 (0.006 ms): pkey/16018 pkey_alloc(init_val: DISABLE_WRITE) = -1 EINVAL Invalid argument 32.795 (0.004 ms): pkey/16018 pkey_mprotect(start: 0x7f380d0a6000, len: 4096, prot: READ|WRITE, pkey: -1) = 0 32.801 (0.002 ms): pkey/16018 pkey_free(pkey: -1 ) = -1 EINVAL Invalid argument ^C# - Do not auto merge counts for explicitely specified events in 'perf stat' (Arnaldo Carvalho de Melo) - Fix syntax in documentation of .perfconfig intel-pt option (Jack Henschel) - Calculate the average cycles of iterations for loops detected by the branch history support in 'perf report' (Jin Yao) - Support PERF_SAMPLE_PHYS_ADDR as a sort key "phys_daddr" in the 'script', 'mem', 'top' and 'report'. Also add a test entry for it in 'perf test' (Kan Liang) - Fix 'Object code reading' 'perf test' entry in PowerPC (Ravi Bangoria) - Remove some duplicate Power9 duplicate vendor events (described in JSON files) (Sukadev Bhattiprolu) - Add help entry in the TUI annotate browser about cycling thru hottest instructions with TAB/shift+TAB (Arnaldo Carvalho de Melo) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-09-05dmaengine: sun6i: support V3s SoC variantIcenowy Zheng
Allwinner V3s has a DMA engine similar to the ones from A31, but with fewer channels and DRQs. Add support for it. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Acked-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2017-09-05dmaengine: sun6i: make gate bit in sun8i's DMA engines a common quirkIcenowy Zheng
Originally we enable a special gate bit when the compatible indicates A23/33. But according to BSP sources and user manuals, more SoCs will need this gate bit. So make it a common quirk configured in the config struct. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2017-09-05dmaengine: rcar-dmac: document R8A77970 bindingsSergei Shtylyov
Renesas R-Car V3M (R8A77970) SoC also has the R-Car gen2/3 compatible DMA controllers, so document the SoC specific binding. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2017-09-05dmaengine: xilinx_dma: Fix error code format specifierLars-Peter Clausen
'err' is a signed int and error codes are typically negative numbers, so use '%d' instead of '%u' to format the error code in the error message. Fixes: ba16db36b5dd ("dmaengine: vdma: Add clock support") Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Kedareswara rao Appana <appanad@xilinx.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2017-09-05drm/i915/gvt: Remove one duplicated MMIOJian Jun Chen
Remove one duplicated MMIO GEN6_PCODE_MAILBOX. Duplicated MMIO will cause host GVT-g initialization failure. Fixes: 9c3a16c887f0 ("drm/i915/hsw+: Add support for multiple power well regs") Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com> Acked-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2017-09-04cifs: Check for timeout on Negotiate stageSamuel Cabrero
Some servers seem to accept connections while booting but never send the SMBNegotiate response neither close the connection, causing all processes accessing the share hang on uninterruptible sleep state. This happens when the cifs_demultiplex_thread detects the server is unresponsive so releases the socket and start trying to reconnect. At some point, the faulty server will accept the socket and the TCP status will be set to NeedNegotiate. The first issued command accessing the share will start the negotiation (pid 5828 below), but the response will never arrive so other commands will be blocked waiting on the mutex (pid 55352). This patch checks for unresponsive servers also on the negotiate stage releasing the socket and reconnecting if the response is not received and checking again the tcp state when the mutex is acquired. PID: 55352 TASK: ffff880fd6cc02c0 CPU: 0 COMMAND: "ls" #0 [ffff880fd9add9f0] schedule at ffffffff81467eb9 #1 [ffff880fd9addb38] __mutex_lock_slowpath at ffffffff81468fe0 #2 [ffff880fd9addba8] mutex_lock at ffffffff81468b1a #3 [ffff880fd9addbc0] cifs_reconnect_tcon at ffffffffa042f905 [cifs] #4 [ffff880fd9addc60] smb_init at ffffffffa042faeb [cifs] #5 [ffff880fd9addca0] CIFSSMBQPathInfo at ffffffffa04360b5 [cifs] .... Which is waiting a mutex owned by: PID: 5828 TASK: ffff880fcc55e400 CPU: 0 COMMAND: "xxxx" #0 [ffff880fbfdc19b8] schedule at ffffffff81467eb9 #1 [ffff880fbfdc1b00] wait_for_response at ffffffffa044f96d [cifs] #2 [ffff880fbfdc1b60] SendReceive at ffffffffa04505ce [cifs] #3 [ffff880fbfdc1bb0] CIFSSMBNegotiate at ffffffffa0438d79 [cifs] #4 [ffff880fbfdc1c50] cifs_negotiate_protocol at ffffffffa043b383 [cifs] #5 [ffff880fbfdc1c80] cifs_reconnect_tcon at ffffffffa042f911 [cifs] #6 [ffff880fbfdc1d20] smb_init at ffffffffa042faeb [cifs] #7 [ffff880fbfdc1d60] CIFSSMBQFSInfo at ffffffffa0434eb0 [cifs] .... Signed-off-by: Samuel Cabrero <scabrero@suse.de> Reviewed-by: Aurélien Aptel <aaptel@suse.de> Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2017-09-04Merge branch 'x86-apic-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 apic updates from Thomas Gleixner: "This update provides: - Cleanup of the IDT management including the removal of the extra tracing IDT. A first step to cleanup the vector management code. - The removal of the paravirt op adjust_exception_frame. This is a XEN specific issue, but merged through this branch to avoid nasty merge collisions - Prevent dmesg spam about the TSC DEADLINE bug, when the CPU has disabled the TSC DEADLINE timer in CPUID. - Adjust a debug message in the ioapic code to print out the information correctly" * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits) x86/idt: Fix the X86_TRAP_BP gate x86/xen: Get rid of paravirt op adjust_exception_frame x86/eisa: Add missing include x86/idt: Remove superfluous ALIGNment x86/apic: Silence "FW_BUG TSC_DEADLINE disabled due to Errata" on CPUs without the feature x86/idt: Remove the tracing IDT leftovers x86/idt: Hide set_intr_gate() x86/idt: Simplify alloc_intr_gate() x86/idt: Deinline setup functions x86/idt: Remove unused functions/inlines x86/idt: Move interrupt gate initialization to IDT code x86/idt: Move APIC gate initialization to tables x86/idt: Move regular trap init to tables x86/idt: Move IST stack based traps to table init x86/idt: Move debug stack init to table based x86/idt: Switch early trap init to IDT tables x86/idt: Prepare for table based init x86/idt: Move early IDT setup out of 32-bit asm x86/idt: Move early IDT handler setup to IDT code x86/idt: Consolidate IDT invalidation ...
2017-09-04fs: unexport vfs_readv and vfs_writevChristoph Hellwig
We've got no modular users left, and any potential modular user is better of with iov_iter based variants. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04fs: unexport vfs_read and vfs_writeChristoph Hellwig
No modular users left. Given that they take user pointers there is no good reason to export it to drivers to start with. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04fs: unexport __vfs_read/__vfs_writeChristoph Hellwig
No modular users left, and any new ones should use kernel_read/write or iov_iter variants instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04lustre: switch to kernel_writeChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04gadget/f_mass_storage: stop messing with the address limitChristoph Hellwig
Instead use kernel_read/write consistently, which also makes sparse happy. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04mconsole: switch to kernel_readChristoph Hellwig
Instead of playing with address limits. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04btrfs: switch write_buf to kernel_writeChristoph Hellwig
Instead of playing with the addressing limits. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04net/9p: switch p9_fd_read to kernel_writeChristoph Hellwig
Instead of playing with the addressing limits. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04mm/nommu: switch do_mmap_private to kernel_readChristoph Hellwig
Instead of playing with the address limit. This also gains us validation of the kvec and proper atime updates. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04serial2002: switch serial2002_tty_write to kernel_{read/write}Christoph Hellwig
Instead of playing games with the address limit. This also gains us proper usage of the write counter, time stamp updates and kvec validation. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04fs: make the buf argument to __kernel_write a void pointerChristoph Hellwig
This matches kernel_read and kernel_write and avoids any need for casts in the callers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04fs: fix kernel_write prototypeChristoph Hellwig
Make the position an in/out argument like all the other read/write helpers and and make the buf argument a void pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04fs: fix kernel_read prototypeChristoph Hellwig
Use proper ssize_t and size_t types for the return value and count argument, move the offset last and make it an in/out argument like all other read/write helpers, and make the buf argument a void pointer to get rid of lots of casts in the callers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04fs: move kernel_read to fs/read_write.cChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04fs: move kernel_write to fs/read_write.cChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04autofs4: switch autofs4_write to __kernel_writeChristoph Hellwig
Instead of playing games with the address limit.. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04ashmem: switch to ->read_iterChristoph Hellwig
And use the proper VFS helper for using the backing file. Also make sure we hold ashmem_lock while updating f_pos to make sure that it's not racy. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04block_dev: support RFW_NOWAIT on block device nodesChristoph Hellwig
All support is already there in the generic code, we just need to wire it up. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04fs: support RWF_NOWAIT for buffered readsChristoph Hellwig
This is based on the old idea and code from Milosz Tanski. With the aio nowait code it becomes mostly trivial now. Buffered writes continue to return -EOPNOTSUPP if RWF_NOWAIT is passed. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04fs: support IOCB_NOWAIT in generic_file_buffered_readMilosz Tanski
Allow generic_file_buffered_read to bail out early instead of waiting for the page lock or reading a page if IOCB_NOWAIT is specified. Signed-off-by: Milosz Tanski <milosz@adfin.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Acked-by: Sage Weil <sage@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04fs: pass iocb to do_generic_file_readChristoph Hellwig
And rename it to the more descriptive generic_file_buffered_read while at it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
generated by cgit (git 2.34.1) at 2025-09-14 04:55:26 +0000