Xiubo Li 543af5861f uio: change to use the mutex lock instead of the spin lock ... We are hitting a regression with the following commit: commit a93e7b3315 Author: Hamish Martin <hamish.martin@alliedtelesis.co.nz> Date: Mon May 14 13:32:23 2018 +1200 uio: Prevent device destruction while fds are open The problem is the addition of spin_lock_irqsave in uio_write. This leads to hitting uio_write -> copy_from_user -> _copy_from_user -> might_fault and the logs filling up with sleeping warnings. I also noticed some uio drivers allocate memory, sleep, grab mutexes from callouts like open() and release and uio is now doing spin_lock_irqsave while calling them. Reported-by: Mike Christie <mchristi@redhat.com> CC: Hamish Martin <hamish.martin@alliedtelesis.co.nz> Reviewed-by: Hamish Martin <hamish.martin@alliedtelesis.co.nz> Signed-off-by: Xiubo Li <xiubli@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-07-07 16:57:35 +02:00
..
Kconfig	uio-hv-generic: new userspace i/o driver for VMBus	2016-12-06 11:52:49 +01:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
uio_aec.c	uio: uio_aec: remove unnecessary pci_set_drvdata()	2013-09-26 08:47:25 -07:00
uio_cif.c	uio: uio_cif: remove unnecessary pci_set_drvdata()	2013-09-26 08:47:25 -07:00
uio_dmem_genirq.c	uio: fix dmem_region_start computation	2016-08-31 13:07:30 +02:00
uio_fsl_elbc_gpcm.c	uio: uio_fsl_elbc_gpcm: Remove owner assignment from platform_driver	2018-04-23 13:31:27 +02:00
uio_hv_generic.c	uio_hv_generic: fix subchannel ring mmap	2018-04-23 12:43:48 +02:00
uio_mf624.c	uio_mf624: Align memory regions to page size and set correct offsets	2017-04-08 18:13:28 +02:00
uio_netx.c	uio: uio_netx: remove unnecessary pci_set_drvdata()	2013-09-26 08:47:25 -07:00
uio_pci_generic.c	uio/uio_pci_generic: don't fail probe if pdev->irq == NULL	2017-05-18 16:59:06 +02:00
uio_pdrv_genirq.c	Revert "uio: constify of_device_id array"	2015-04-03 16:04:21 +02:00
uio_pruss.c	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
uio_sercos3.c	uio: uio_sercos3: remove unnecessary pci_set_drvdata()	2013-09-26 08:47:25 -07:00
uio.c	uio: change to use the mutex lock instead of the spin lock	2018-07-07 16:57:35 +02:00