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-rw-r--r--arch/alpha/kernel/binfmt_loader.c3
-rw-r--r--arch/powerpc/platforms/cell/spufs/inode.c14
-rw-r--r--arch/s390/hypfs/inode.c6
-rw-r--r--arch/um/include/asm/mmu.h2
-rw-r--r--arch/um/include/asm/mmu_context.h11
-rw-r--r--arch/um/kernel/skas/mmu.c25
-rw-r--r--arch/x86/ia32/ia32_aout.c4
7 files changed, 29 insertions, 36 deletions
diff --git a/arch/alpha/kernel/binfmt_loader.c b/arch/alpha/kernel/binfmt_loader.c
index 3fcfad41013..d1f474d1d44 100644
--- a/arch/alpha/kernel/binfmt_loader.c
+++ b/arch/alpha/kernel/binfmt_loader.c
@@ -46,6 +46,7 @@ static struct linux_binfmt loader_format = {
static int __init init_loader_binfmt(void)
{
- return insert_binfmt(&loader_format);
+ insert_binfmt(&loader_format);
+ return 0;
}
arch_initcall(init_loader_binfmt);
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index d4a094ca96f..4a3d90e0d42 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -757,9 +757,9 @@ spufs_create_root(struct super_block *sb, void *data)
goto out_iput;
ret = -ENOMEM;
- sb->s_root = d_alloc_root(inode);
+ sb->s_root = d_make_root(inode);
if (!sb->s_root)
- goto out_iput;
+ goto out;
return 0;
out_iput:
@@ -828,19 +828,19 @@ static int __init spufs_init(void)
ret = spu_sched_init();
if (ret)
goto out_cache;
- ret = register_filesystem(&spufs_type);
+ ret = register_spu_syscalls(&spufs_calls);
if (ret)
goto out_sched;
- ret = register_spu_syscalls(&spufs_calls);
+ ret = register_filesystem(&spufs_type);
if (ret)
- goto out_fs;
+ goto out_syscalls;
spufs_init_isolated_loader();
return 0;
-out_fs:
- unregister_filesystem(&spufs_type);
+out_syscalls:
+ unregister_spu_syscalls(&spufs_calls);
out_sched:
spu_sched_exit();
out_cache:
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 8a2a887478c..6a2cb560e96 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -293,11 +293,9 @@ static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
return -ENOMEM;
root_inode->i_op = &simple_dir_inode_operations;
root_inode->i_fop = &simple_dir_operations;
- sb->s_root = root_dentry = d_alloc_root(root_inode);
- if (!root_dentry) {
- iput(root_inode);
+ sb->s_root = root_dentry = d_make_root(root_inode);
+ if (!root_dentry)
return -ENOMEM;
- }
if (MACHINE_IS_VM)
rc = hypfs_vm_create_files(sb, root_dentry);
else
diff --git a/arch/um/include/asm/mmu.h b/arch/um/include/asm/mmu.h
index 30509b9f37f..53e8b498ebb 100644
--- a/arch/um/include/asm/mmu.h
+++ b/arch/um/include/asm/mmu.h
@@ -12,7 +12,7 @@
typedef struct mm_context {
struct mm_id id;
struct uml_arch_mm_context arch;
- struct page **stub_pages;
+ struct page *stub_pages[2];
} mm_context_t;
extern void __switch_mm(struct mm_id * mm_idp);
diff --git a/arch/um/include/asm/mmu_context.h b/arch/um/include/asm/mmu_context.h
index 591b3d8d761..aa4a743dc4a 100644
--- a/arch/um/include/asm/mmu_context.h
+++ b/arch/um/include/asm/mmu_context.h
@@ -9,7 +9,7 @@
#include <linux/sched.h>
#include <asm/mmu.h>
-extern void arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm);
+extern void uml_setup_stubs(struct mm_struct *mm);
extern void arch_exit_mmap(struct mm_struct *mm);
#define deactivate_mm(tsk,mm) do { } while (0)
@@ -23,7 +23,9 @@ static inline void activate_mm(struct mm_struct *old, struct mm_struct *new)
* when the new ->mm is used for the first time.
*/
__switch_mm(&new->context.id);
- arch_dup_mmap(old, new);
+ down_write(&new->mmap_sem);
+ uml_setup_stubs(new);
+ up_write(&new->mmap_sem);
}
static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
@@ -39,6 +41,11 @@ 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)
{
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index 1aee587e9c5..4947b319f53 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -92,8 +92,6 @@ int init_new_context(struct task_struct *task, struct mm_struct *mm)
goto out_free;
}
- to_mm->stub_pages = NULL;
-
return 0;
out_free:
@@ -103,7 +101,7 @@ int init_new_context(struct task_struct *task, struct mm_struct *mm)
return ret;
}
-void arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm)
+void uml_setup_stubs(struct mm_struct *mm)
{
struct page **pages;
int err, ret;
@@ -120,29 +118,20 @@ void arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm)
if (ret)
goto out;
- pages = kmalloc(2 * sizeof(struct page *), GFP_KERNEL);
- if (pages == NULL) {
- printk(KERN_ERR "arch_dup_mmap failed to allocate 2 page "
- "pointers\n");
- goto out;
- }
-
- pages[0] = virt_to_page(&__syscall_stub_start);
- pages[1] = virt_to_page(mm->context.id.stack);
- mm->context.stub_pages = pages;
+ mm->context.stub_pages[0] = virt_to_page(&__syscall_stub_start);
+ mm->context.stub_pages[1] = virt_to_page(mm->context.id.stack);
/* dup_mmap already holds mmap_sem */
err = install_special_mapping(mm, STUB_START, STUB_END - STUB_START,
VM_READ | VM_MAYREAD | VM_EXEC |
- VM_MAYEXEC | VM_DONTCOPY, pages);
+ VM_MAYEXEC | VM_DONTCOPY,
+ mm->context.stub_pages);
if (err) {
printk(KERN_ERR "install_special_mapping returned %d\n", err);
- goto out_free;
+ goto out;
}
return;
-out_free:
- kfree(pages);
out:
force_sigsegv(SIGSEGV, current);
}
@@ -151,8 +140,6 @@ void arch_exit_mmap(struct mm_struct *mm)
{
pte_t *pte;
- if (mm->context.stub_pages != NULL)
- kfree(mm->context.stub_pages);
pte = virt_to_pte(mm, STUB_CODE);
if (pte != NULL)
pte_clear(mm, STUB_CODE, pte);
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index 39e49091f64..4c2e59a420b 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -323,7 +323,6 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
}
install_exec_creds(bprm);
- current->flags &= ~PF_FORKNOEXEC;
if (N_MAGIC(ex) == OMAGIC) {
unsigned long text_addr, map_size;
@@ -519,7 +518,8 @@ out:
static int __init init_aout_binfmt(void)
{
- return register_binfmt(&aout_format);
+ register_binfmt(&aout_format);
+ return 0;
}
static void __exit exit_aout_binfmt(void)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-12 15:04:54 +0000