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-rw-r--r--arch/um/drivers/line.c6
-rw-r--r--arch/um/include/asm/Kbuild1
-rw-r--r--arch/um/include/asm/mmu_context.h24
3 files changed, 24 insertions, 7 deletions
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 8035145f043b..62087028a9ce 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -632,6 +632,7 @@ static irqreturn_t winch_interrupt(int irq, void *data)
int fd = winch->fd;
int err;
char c;
+ struct pid *pgrp;
if (fd != -1) {
err = generic_read(fd, &c, NULL);
@@ -657,7 +658,10 @@ static irqreturn_t winch_interrupt(int irq, void *data)
if (line != NULL) {
chan_window_size(line, &tty->winsize.ws_row,
&tty->winsize.ws_col);
- kill_pgrp(tty->pgrp, SIGWINCH, 1);
+ pgrp = tty_get_pgrp(tty);
+ if (pgrp)
+ kill_pgrp(pgrp, SIGWINCH, 1);
+ put_pid(pgrp);
}
tty_kref_put(tty);
}
diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
index 244b12c8cb39..9176fa11d49b 100644
--- a/arch/um/include/asm/Kbuild
+++ b/arch/um/include/asm/Kbuild
@@ -10,7 +10,6 @@ generic-y += exec.h
generic-y += ftrace.h
generic-y += futex.h
generic-y += hardirq.h
-generic-y += hash.h
generic-y += hw_irq.h
generic-y += io.h
generic-y += irq_regs.h
diff --git a/arch/um/include/asm/mmu_context.h b/arch/um/include/asm/mmu_context.h
index aa4a743dc4ab..941527e507f7 100644
--- a/arch/um/include/asm/mmu_context.h
+++ b/arch/um/include/asm/mmu_context.h
@@ -10,7 +10,26 @@
#include <asm/mmu.h>
extern void uml_setup_stubs(struct mm_struct *mm);
+/*
+ * Needed since we do not use the asm-generic/mm_hooks.h:
+ */
+static inline void arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm)
+{
+ uml_setup_stubs(mm);
+}
extern void arch_exit_mmap(struct mm_struct *mm);
+static inline void arch_unmap(struct mm_struct *mm,
+ struct vm_area_struct *vma,
+ unsigned long start, unsigned long end)
+{
+}
+static inline void arch_bprm_mm_init(struct mm_struct *mm,
+ struct vm_area_struct *vma)
+{
+}
+/*
+ * end asm-generic/mm_hooks.h functions
+ */
#define deactivate_mm(tsk,mm) do { } while (0)
@@ -41,11 +60,6 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
}
}
-static inline void arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm)
-{
- uml_setup_stubs(mm);
-}
-
static inline void enter_lazy_tlb(struct mm_struct *mm,
struct task_struct *tsk)
{