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authorLinus Torvalds <torvalds@linux-foundation.org>2021-09-09 23:45:26 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-09 23:45:26 +0300
commitd6c338a741295c04ed84679153448b2fffd2c9cf (patch)
treec5711758bb97fb010157396815ab1dbc105d7247 /arch/x86/um/stub_segv.c
parent35776f10513c0d523c5dd2f1b415f642497779e2 (diff)
parentadf9ae0d159d3dc94f58d788fc4757c8749ac0df (diff)
downloadlinux-d6c338a741295c04ed84679153448b2fffd2c9cf.tar.xz
Merge tag 'for-linus-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML updates from Richard Weinberger: - Support for VMAP_STACK - Support for splice_write in hostfs - Fixes for virt-pci - Fixes for virtio_uml - Various fixes * tag 'for-linus-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: fix stub location calculation um: virt-pci: fix uapi documentation um: enable VMAP_STACK um: virt-pci: don't do DMA from stack hostfs: support splice_write um: virtio_uml: fix memory leak on init failures um: virtio_uml: include linux/virtio-uml.h lib/logic_iomem: fix sparse warnings um: make PCI emulation driver init/exit static
Diffstat (limited to 'arch/x86/um/stub_segv.c')
-rw-r--r--arch/x86/um/stub_segv.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/um/stub_segv.c b/arch/x86/um/stub_segv.c
index 21836eaf1725..f7eefba034f9 100644
--- a/arch/x86/um/stub_segv.c
+++ b/arch/x86/um/stub_segv.c
@@ -11,9 +11,8 @@
void __attribute__ ((__section__ (".__syscall_stub")))
stub_segv_handler(int sig, siginfo_t *info, void *p)
{
- int stack;
+ struct faultinfo *f = get_stub_page();
ucontext_t *uc = p;
- struct faultinfo *f = (void *)(((unsigned long)&stack) & ~(UM_KERN_PAGE_SIZE - 1));
GET_FAULTINFO_FROM_MC(*f, &uc->uc_mcontext);
trap_myself();