Date: Wed, 31 May 2017 15:05:44 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r319338 - in head/sys/compat/linuxkpi/common: include/linux src Message-ID: <201705311505.v4VF5i1I089203@repo.freebsd.org>
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Author: hselasky Date: Wed May 31 15:05:44 2017 New Revision: 319338 URL: https://svnweb.freebsd.org/changeset/base/319338 Log: Implement in_atomic() function in the LinuxKPI. Obtained from: kmacy @ MFC after: 1 week Sponsored by: Mellanox Technologies Modified: head/sys/compat/linuxkpi/common/include/linux/kthread.h head/sys/compat/linuxkpi/common/src/linux_compat.c Modified: head/sys/compat/linuxkpi/common/include/linux/kthread.h ============================================================================== --- head/sys/compat/linuxkpi/common/include/linux/kthread.h Wed May 31 14:59:03 2017 (r319337) +++ head/sys/compat/linuxkpi/common/include/linux/kthread.h Wed May 31 15:05:44 2017 (r319338) @@ -48,10 +48,15 @@ __task; \ }) +#define in_atomic() ({ \ + linux_in_atomic(); \ +}) + extern int kthread_stop(struct task_struct *); extern bool kthread_should_stop_task(struct task_struct *); extern bool kthread_should_stop(void); extern void linux_kthread_fn(void *); extern struct task_struct *linux_kthread_setup_and_run(struct thread *, linux_task_fn_t *, void *arg); +extern int linux_in_atomic(void); #endif /* _LINUX_KTHREAD_H_ */ Modified: head/sys/compat/linuxkpi/common/src/linux_compat.c ============================================================================== --- head/sys/compat/linuxkpi/common/src/linux_compat.c Wed May 31 14:59:03 2017 (r319337) +++ head/sys/compat/linuxkpi/common/src/linux_compat.c Wed May 31 15:05:44 2017 (r319338) @@ -73,8 +73,9 @@ __FBSDID("$FreeBSD$"); #include <linux/timer.h> #include <linux/interrupt.h> #include <linux/uaccess.h> -#include <linux/kernel.h> #include <linux/list.h> +#include <linux/kthread.h> +#include <linux/kernel.h> #include <linux/compat.h> #include <linux/poll.h> #include <linux/smp.h> @@ -1677,6 +1678,13 @@ linux_on_each_cpu(void callback(void *), void *data) smp_rendezvous(smp_no_rendezvous_barrier, callback, smp_no_rendezvous_barrier, data); return (0); +} + +int +linux_in_atomic(void) +{ + + return ((curthread->td_pflags & TDP_NOFAULTING) != 0); } struct linux_cdev *
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