The patch titled
Subject: c-r-prctl-add-pr_set_mm-codes-to-set-up-mm_struct-entries-fix
has been removed from the -mm tree. Its filename was
c-r-prctl-add-pr_set_mm-codes-to-set-up-mm_struct-entries-fix.patch
This patch was dropped because it was folded into c-r-prctl-add-pr_set_mm-codes-to-set-up-mm_struct-entries.patch
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: c-r-prctl-add-pr_set_mm-codes-to-set-up-mm_struct-entries-fix
cache current->mm in a local, saving 200 bytes text
Cc: Andrew Vagin <avagin@xxxxxxxxxx>
Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Michael Kerrisk <mtk.manpages@xxxxxxxxx>
Cc: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
Cc: Serge Hallyn <serge.hallyn@xxxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Vasiliy Kulikov <segoon@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/sys.c | 33 +++++++++++++++++----------------
1 file changed, 17 insertions(+), 16 deletions(-)
diff -puN kernel/sys.c~c-r-prctl-add-pr_set_mm-codes-to-set-up-mm_struct-entries-fix kernel/sys.c
--- a/kernel/sys.c~c-r-prctl-add-pr_set_mm-codes-to-set-up-mm_struct-entries-fix
+++ a/kernel/sys.c
@@ -1701,6 +1701,7 @@ static int prctl_set_mm(int opt, unsigne
unsigned long vm_bad_flags;
struct vm_area_struct *vma;
int error = 0;
+ struct mm_struct *mm = current->mm;
if (arg4 | arg5)
return -EINVAL;
@@ -1711,8 +1712,8 @@ static int prctl_set_mm(int opt, unsigne
if (addr >= TASK_SIZE)
return -EINVAL;
- down_read(¤t->mm->mmap_sem);
- vma = find_vma(current->mm, addr);
+ down_read(&mm->mmap_sem);
+ vma = find_vma(mm, addr);
if (opt != PR_SET_MM_START_BRK && opt != PR_SET_MM_BRK) {
/* It must be existing VMA */
@@ -1732,9 +1733,9 @@ static int prctl_set_mm(int opt, unsigne
goto out;
if (opt == PR_SET_MM_START_CODE)
- current->mm->start_code = addr;
+ mm->start_code = addr;
else
- current->mm->end_code = addr;
+ mm->end_code = addr;
break;
case PR_SET_MM_START_DATA:
@@ -1747,9 +1748,9 @@ static int prctl_set_mm(int opt, unsigne
goto out;
if (opt == PR_SET_MM_START_DATA)
- current->mm->start_data = addr;
+ mm->start_data = addr;
else
- current->mm->end_data = addr;
+ mm->end_data = addr;
break;
case PR_SET_MM_START_STACK:
@@ -1762,31 +1763,31 @@ static int prctl_set_mm(int opt, unsigne
if ((vma->vm_flags & vm_req_flags) != vm_req_flags)
goto out;
- current->mm->start_stack = addr;
+ mm->start_stack = addr;
break;
case PR_SET_MM_START_BRK:
- if (addr <= current->mm->end_data)
+ if (addr <= mm->end_data)
goto out;
if (rlim < RLIM_INFINITY &&
- (current->mm->brk - addr) +
- (current->mm->end_data - current->mm->start_data) > rlim)
+ (mm->brk - addr) +
+ (mm->end_data - mm->start_data) > rlim)
goto out;
- current->mm->start_brk = addr;
+ mm->start_brk = addr;
break;
case PR_SET_MM_BRK:
- if (addr <= current->mm->end_data)
+ if (addr <= mm->end_data)
goto out;
if (rlim < RLIM_INFINITY &&
- (addr - current->mm->start_brk) +
- (current->mm->end_data - current->mm->start_data) > rlim)
+ (addr - mm->start_brk) +
+ (mm->end_data - mm->start_data) > rlim)
goto out;
- current->mm->brk = addr;
+ mm->brk = addr;
break;
default:
@@ -1797,7 +1798,7 @@ static int prctl_set_mm(int opt, unsigne
error = 0;
out:
- up_read(¤t->mm->mmap_sem);
+ up_read(&mm->mmap_sem);
return error;
}
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
treewide-convert-uses-of-attrib_noreturn-to-__noreturn.patch
drivers-video-nvidia-nvidiac-fix-warning.patch
pipe-fail-cleanly-when-root-tries-f_setpipe_sz-with-big-size.patch
mm-vmscan-distinguish-between-memcg-triggering-reclaim-and-memcg-being-scanned.patch
memcg-make-mem_cgroup_split_huge_fixup-more-efficient.patch
memcg-clear-pc-mem_cgorup-if-necessary.patch
memcg-simplify-lru-handling-by-new-rule.patch
mm-compaction-introduce-sync-light-migration-for-use-by-compaction.patch
mm-vmallocc-eliminate-extra-loop-in-pcpu_get_vm_areas-error-path.patch
kexec-remove-kmsg_dump_kexec.patch
panic-dont-print-redundant-backtraces-on-oops.patch
drivers-parport-parport_pcc-fix-warnings.patch
dio-optimize-cache-misses-in-the-submission-path-v2.patch
selftests-new-very-basic-kernel-selftests-directory.patch
c-r-prctl-add-pr_set_mm-codes-to-set-up-mm_struct-entries.patch
fixed-use-of-rounddown_pow_of_two-in-ramoops.patch
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