d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix warning about sleeping with non-sleepable lock when allocating

Browse Source 
"current" from linux_cdev_pager_populate() in the LinuxKPI:

Backtrace:
witness_debugger()
witness_warn()
uma_zalloc_arg()
malloc()
linux_alloc_current()
linux_cdev_pager_populate()
vm_fault()
vm_fault_trap()
trap_pfault()
trap()
calltrap()

Suggested by:	avg@
MFC after:	1 week
Sponsored by:	Mellanox Technologies
This commit is contained in:
Hans Petter Selasky 2020-05-04 08:05:01 +00:00
parent 883b75538f
commit 42f8ef4bf5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=360621
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sys/compat/linuxkpi/common/src/linux_compat.c
View File

@ -525,8 +525,6 @@ linux_cdev_pager_populate(vm_object_t vm_obj, vm_pindex_t pidx, int fault_type,
struct vm_area_struct *vmap;
int err;
linux_set_current(curthread);
/* get VM area structure */
vmap = linux_cdev_handle_find(vm_obj->handle);
MPASS(vmap != NULL);
@ -534,6 +532,8 @@ linux_cdev_pager_populate(vm_object_t vm_obj, vm_pindex_t pidx, int fault_type,
VM_OBJECT_WUNLOCK(vm_obj);
linux_set_current(curthread);
down_write(&vmap->vm_mm->mmap_sem);
if (unlikely(vmap->vm_ops == NULL)) {
err = VM_FAULT_SIGBUS;