The patch titled
Subject: mm,hugetlb: remove mlock ulimit for SHM_HUGETLB
has been added to the -mm tree. Its filename is
mmhugetlb-remove-mlock-ulimit-for-shm_hugetlb.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mmhugetlb-remove-mlock-ulimit-for-shm_hugetlb.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mmhugetlb-remove-mlock-ulimit-for-shm_hugetlb.patch
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------------------------------------------------------
From: zhangyiru <zhangyiru3@xxxxxxxxxx>
Subject: mm,hugetlb: remove mlock ulimit for SHM_HUGETLB
Remove mlock ulimit for SHM_HUGETLB. 2584e517320b ("mm: reintroduce and
deprecate rlimit based access for SHM_HUGETLB") marked this as deprecated
in 2012, but it is not deleted yet
Link: https://lkml.kernel.org/r/20210904075458.51012-1-zhangyiru3@xxxxxxxxxx
Signed-off-by: zhangyiru <zhangyiru3@xxxxxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: <wuxu.wu@xxxxxxxxxx>
Cc: <liusirui@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/hugetlbfs/inode.c | 14 ++------------
1 file changed, 2 insertions(+), 12 deletions(-)
--- a/fs/hugetlbfs/inode.c~mmhugetlb-remove-mlock-ulimit-for-shm_hugetlb
+++ a/fs/hugetlbfs/inode.c
@@ -1463,18 +1463,8 @@ struct file *hugetlb_file_setup(const ch
if (!mnt)
return ERR_PTR(-ENOENT);
- if (creat_flags == HUGETLB_SHMFS_INODE && !can_do_hugetlb_shm()) {
- *ucounts = current_ucounts();
- if (user_shm_lock(size, *ucounts)) {
- task_lock(current);
- pr_warn_once("%s (%d): Using mlock ulimits for SHM_HUGETLB is deprecated\n",
- current->comm, current->pid);
- task_unlock(current);
- } else {
- *ucounts = NULL;
- return ERR_PTR(-EPERM);
- }
- }
+ if (creat_flags == HUGETLB_SHMFS_INODE && !can_do_hugetlb_shm())
+ return ERR_PTR(-EPERM);
file = ERR_PTR(-ENOSPC);
inode = hugetlbfs_get_inode(mnt->mnt_sb, NULL, S_IFREG | S_IRWXUGO, 0);
_
Patches currently in -mm which might be from zhangyiru3@xxxxxxxxxx are
mmhugetlb-remove-mlock-ulimit-for-shm_hugetlb.patch
