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authorAl Viro <viro@zeniv.linux.org.uk>2012-05-30 08:12:40 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2012-05-31 03:04:56 +0200
commit657bec850ff98b82b3a617b588a6523487344ccc (patch)
tree46ff90dc5823c1602bcc886b24d3964fa7148a76 /arch
parentbinfmt_flat: use vm_munmap, we are missing ->mmap_sem there (diff)
downloadlinux-657bec850ff98b82b3a617b588a6523487344ccc.tar.xz
linux-657bec850ff98b82b3a617b588a6523487344ccc.zip
ia64, sparc64: convert wrappers around do_mremap() to sys_mremap()
they contain open-coded sys_mremap() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/kernel/sys_ia64.c19
-rw-r--r--arch/sparc/kernel/sys_sparc_64.c11
2 files changed, 5 insertions, 25 deletions
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index 609d50056a6c..d9439ef2f661 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -171,22 +171,9 @@ asmlinkage unsigned long
ia64_mremap (unsigned long addr, unsigned long old_len, unsigned long new_len, unsigned long flags,
unsigned long new_addr)
{
- extern unsigned long do_mremap (unsigned long addr,
- unsigned long old_len,
- unsigned long new_len,
- unsigned long flags,
- unsigned long new_addr);
-
- down_write(&current->mm->mmap_sem);
- {
- addr = do_mremap(addr, old_len, new_len, flags, new_addr);
- }
- up_write(&current->mm->mmap_sem);
-
- if (IS_ERR((void *) addr))
- return addr;
-
- force_successful_syscall_return();
+ addr = sys_mremap(addr, old_len, new_len, flags, new_addr);
+ if (!IS_ERR((void *) addr))
+ force_successful_syscall_return();
return addr;
}
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 3ee51f189a55..275f74fd6f6a 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -580,16 +580,9 @@ SYSCALL_DEFINE5(64_mremap, unsigned long, addr, unsigned long, old_len,
unsigned long, new_len, unsigned long, flags,
unsigned long, new_addr)
{
- unsigned long ret = -EINVAL;
-
if (test_thread_flag(TIF_32BIT))
- goto out;
-
- down_write(&current->mm->mmap_sem);
- ret = do_mremap(addr, old_len, new_len, flags, new_addr);
- up_write(&current->mm->mmap_sem);
-out:
- return ret;
+ return -EINVAL;
+ return sys_mremap(addr, old_len, new_len, flags, new_addr);
}
/* we come to here via sys_nis_syscall so it can setup the regs argument */