git: ba682f8b9b58 - main - vm: Remove kernel stack swapping support, part 5

From: Mark Johnston <markj_at_FreeBSD.org>
Date: Mon, 29 Jul 2024 01:49:57 UTC
The branch main has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=ba682f8b9b58f6b497a5015ef70b2120b8d96663

commit ba682f8b9b58f6b497a5015ef70b2120b8d96663
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2024-07-29 01:40:39 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2024-07-29 01:40:39 +0000

    vm: Remove kernel stack swapping support, part 5
    
    - Remove cpu_thread_swapin() and cpu_thread_swapout().
    
    Tested by:      pho
    Reviewed by:    alc, imp, kib
    Differential Revision:  https://reviews.freebsd.org/D46116
---
 sys/amd64/amd64/vm_machdep.c     | 10 ----------
 sys/arm/arm/vm_machdep.c         | 10 ----------
 sys/arm64/arm64/vm_machdep.c     | 10 ----------
 sys/i386/i386/vm_machdep.c       | 10 ----------
 sys/powerpc/powerpc/vm_machdep.c | 12 ------------
 sys/riscv/riscv/vm_machdep.c     | 10 ----------
 sys/sys/proc.h                   |  2 --
 7 files changed, 64 deletions(-)

diff --git a/sys/amd64/amd64/vm_machdep.c b/sys/amd64/amd64/vm_machdep.c
index c6b78824d730..f6d52fa4c02b 100644
--- a/sys/amd64/amd64/vm_machdep.c
+++ b/sys/amd64/amd64/vm_machdep.c
@@ -374,16 +374,6 @@ cpu_thread_clean(struct thread *td)
 	}
 }
 
-void
-cpu_thread_swapin(struct thread *td)
-{
-}
-
-void
-cpu_thread_swapout(struct thread *td)
-{
-}
-
 void
 cpu_thread_alloc(struct thread *td)
 {
diff --git a/sys/arm/arm/vm_machdep.c b/sys/arm/arm/vm_machdep.c
index 1dd01f6700aa..377373388478 100644
--- a/sys/arm/arm/vm_machdep.c
+++ b/sys/arm/arm/vm_machdep.c
@@ -146,16 +146,6 @@ cpu_fork(struct thread *td1, struct proc *p2, struct thread *td2, int flags)
 	td2->td_md.md_saved_cspr = PSR_SVC32_MODE;
 }
 
-void
-cpu_thread_swapin(struct thread *td)
-{
-}
-
-void
-cpu_thread_swapout(struct thread *td)
-{
-}
-
 void
 cpu_set_syscall_retval(struct thread *td, int error)
 {
diff --git a/sys/arm64/arm64/vm_machdep.c b/sys/arm64/arm64/vm_machdep.c
index 457157e34a6f..924628001103 100644
--- a/sys/arm64/arm64/vm_machdep.c
+++ b/sys/arm64/arm64/vm_machdep.c
@@ -137,16 +137,6 @@ cpu_reset(void)
 		__asm volatile("wfi" ::: "memory");
 }
 
-void
-cpu_thread_swapin(struct thread *td)
-{
-}
-
-void
-cpu_thread_swapout(struct thread *td)
-{
-}
-
 void
 cpu_set_syscall_retval(struct thread *td, int error)
 {
diff --git a/sys/i386/i386/vm_machdep.c b/sys/i386/i386/vm_machdep.c
index 2c2fb9dc9821..0e0cebe98e5f 100644
--- a/sys/i386/i386/vm_machdep.c
+++ b/sys/i386/i386/vm_machdep.c
@@ -374,16 +374,6 @@ cpu_thread_clean(struct thread *td)
 	}
 }
 
-void
-cpu_thread_swapin(struct thread *td)
-{
-}
-
-void
-cpu_thread_swapout(struct thread *td)
-{
-}
-
 void
 cpu_thread_alloc(struct thread *td)
 {
diff --git a/sys/powerpc/powerpc/vm_machdep.c b/sys/powerpc/powerpc/vm_machdep.c
index 74a61e1b7016..12c64f9e38bf 100644
--- a/sys/powerpc/powerpc/vm_machdep.c
+++ b/sys/powerpc/powerpc/vm_machdep.c
@@ -211,18 +211,6 @@ cpu_exit(struct thread *td)
  * fixed-size KVA.
  */
 
-void
-cpu_thread_swapin(struct thread *td)
-{
-
-}
-
-void
-cpu_thread_swapout(struct thread *td)
-{
-
-}
-
 bool
 cpu_exec_vmspace_reuse(struct proc *p __unused, vm_map_t map __unused)
 {
diff --git a/sys/riscv/riscv/vm_machdep.c b/sys/riscv/riscv/vm_machdep.c
index f6d6f61bdc84..726f95213c91 100644
--- a/sys/riscv/riscv/vm_machdep.c
+++ b/sys/riscv/riscv/vm_machdep.c
@@ -113,16 +113,6 @@ cpu_reset(void)
 	while(1);
 }
 
-void
-cpu_thread_swapin(struct thread *td)
-{
-}
-
-void
-cpu_thread_swapout(struct thread *td)
-{
-}
-
 void
 cpu_set_syscall_retval(struct thread *td, int error)
 {
diff --git a/sys/sys/proc.h b/sys/sys/proc.h
index 167ac275c920..2c8b0dc041c4 100644
--- a/sys/sys/proc.h
+++ b/sys/sys/proc.h
@@ -1235,8 +1235,6 @@ void	cpu_thread_alloc(struct thread *);
 void	cpu_thread_clean(struct thread *);
 void	cpu_thread_exit(struct thread *);
 void	cpu_thread_free(struct thread *);
-void	cpu_thread_swapin(struct thread *);
-void	cpu_thread_swapout(struct thread *);
 struct	thread *thread_alloc(int pages);
 int	thread_check_susp(struct thread *td, bool sleep);
 void	thread_cow_get_proc(struct thread *newtd, struct proc *p);