Re: [PATCH v2 08/13] mm: update shmem_[kernel]_file_*() functions to use vma_flags_t

Liam R. Howlett
2026-02-09T19:14:40Z

* Lorenzo Stoakes <lorenzo.stoakes@oracle.com> [260122 16:06]:
> In order to be able to use only vma_flags_t in vm_area_desc we must adjust
> shmem file setup functions to operate in terms of vma_flags_t rather than
> vm_flags_t.
>
> This patch makes this change and updates all callers to use the new
> functions.
>
> No functional changes intended.

A few nits, but

Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>

>
> Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
> ---
> arch/x86/kernel/cpu/sgx/ioctl.c | 2 +-
> drivers/gpu/drm/drm_gem.c | 5 +-
> drivers/gpu/drm/i915/gem/i915_gem_shmem.c | 2 +-
> drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 3 +-
> drivers/gpu/drm/i915/gt/shmem_utils.c | 3 +-
> drivers/gpu/drm/ttm/tests/ttm_tt_test.c | 2 +-
> drivers/gpu/drm/ttm/ttm_backup.c | 3 +-
> drivers/gpu/drm/ttm/ttm_tt.c | 2 +-
> fs/xfs/scrub/xfile.c | 3 +-
> fs/xfs/xfs_buf_mem.c | 2 +-
> include/linux/shmem_fs.h | 8 ++-
> ipc/shm.c | 6 +--
> mm/memfd.c | 2 +-
> mm/memfd_luo.c | 2 +-
> mm/shmem.c | 59 +++++++++++++----------
> security/keys/big_key.c | 2 +-
> 16 files changed, 57 insertions(+), 49 deletions(-)
>
> diff --git a/arch/x86/kernel/cpu/sgx/ioctl.c b/arch/x86/kernel/cpu/sgx/ioctl.c
> index 9322a9287dc7..0bc36957979d 100644
> --- a/arch/x86/kernel/cpu/sgx/ioctl.c
> +++ b/arch/x86/kernel/cpu/sgx/ioctl.c
> @@ -83,7 +83,7 @@ static int sgx_encl_create(struct sgx_encl *encl, struct sgx_secs *secs)
> encl_size = secs->size + PAGE_SIZE;
>
> backing = shmem_file_setup("SGX backing", encl_size + (encl_size >> 5),
> - VM_NORESERVE);
> + mk_vma_flags(VMA_NORESERVE_BIT));
> if (IS_ERR(backing)) {
> ret = PTR_ERR(backing);
> goto err_out_shrink;
> diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
> index e4df43427394..be4dca2bc34e 100644
> --- a/drivers/gpu/drm/drm_gem.c
> +++ b/drivers/gpu/drm/drm_gem.c
> @@ -130,14 +130,15 @@ int drm_gem_object_init_with_mnt(struct drm_device *dev,
> struct vfsmount *gemfs)
> {
> struct file *filp;
> + const vma_flags_t flags = mk_vma_flags(VMA_NORESERVE_BIT);
>
> drm_gem_private_object_init(dev, obj, size);
>
> if (gemfs)
> filp = shmem_file_setup_with_mnt(gemfs, "drm mm object", size,
> - VM_NORESERVE);
> + flags);
> else
> - filp = shmem_file_setup("drm mm object", size, VM_NORESERVE);
> + filp = shmem_file_setup("drm mm object", size, flags);
>
> if (IS_ERR(filp))
> return PTR_ERR(filp);
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
> index 26dda55a07ff..fe1843497b27 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
> @@ -496,7 +496,7 @@ static int __create_shmem(struct drm_i915_private *i915,
> struct drm_gem_object *obj,
> resource_size_t size)
> {
> - unsigned long flags = VM_NORESERVE;
> + const vma_flags_t flags = mk_vma_flags(VMA_NORESERVE_BIT);
> struct file *filp;
>
> drm_gem_private_object_init(&i915->drm, obj, size);
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
> index f65fe86c02b5..7b1a7d01db2b 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
> @@ -200,7 +200,8 @@ static int i915_ttm_tt_shmem_populate(struct ttm_device *bdev,
> struct address_space *mapping;
> gfp_t mask;
>
> - filp = shmem_file_setup("i915-shmem-tt", size, VM_NORESERVE);
> + filp = shmem_file_setup("i915-shmem-tt", size,
> + mk_vma_flags(VMA_NORESERVE_BIT));
> if (IS_ERR(filp))
> return PTR_ERR(filp);
>
> diff --git a/drivers/gpu/drm/i915/gt/shmem_utils.c b/drivers/gpu/drm/i915/gt/shmem_utils.c
> index 365c4b8b04f4..5f37c699a320 100644
> --- a/drivers/gpu/drm/i915/gt/shmem_utils.c
> +++ b/drivers/gpu/drm/i915/gt/shmem_utils.c
> @@ -19,7 +19,8 @@ struct file *shmem_create_from_data(const char *name, void *data, size_t len)
> struct file *file;
> int err;
>
> - file = shmem_file_setup(name, PAGE_ALIGN(len), VM_NORESERVE);
> + file = shmem_file_setup(name, PAGE_ALIGN(len),
> + mk_vma_flags(VMA_NORESERVE_BIT));
> if (IS_ERR(file))
> return file;
>
> diff --git a/drivers/gpu/drm/ttm/tests/ttm_tt_test.c b/drivers/gpu/drm/ttm/tests/ttm_tt_test.c
> index 61ec6f580b62..bd5f7d0b9b62 100644
> --- a/drivers/gpu/drm/ttm/tests/ttm_tt_test.c
> +++ b/drivers/gpu/drm/ttm/tests/ttm_tt_test.c
> @@ -143,7 +143,7 @@ static void ttm_tt_fini_shmem(struct kunit *test)
> err = ttm_tt_init(tt, bo, 0, caching, 0);
> KUNIT_ASSERT_EQ(test, err, 0);
>
> - shmem = shmem_file_setup("ttm swap", BO_SIZE, 0);
> + shmem = shmem_file_setup("ttm swap", BO_SIZE, EMPTY_VMA_FLAGS);
> tt->swap_storage = shmem;
>
> ttm_tt_fini(tt);
> diff --git a/drivers/gpu/drm/ttm/ttm_backup.c b/drivers/gpu/drm/ttm/ttm_backup.c
> index 32530c75f038..6bd4c123d94c 100644
> --- a/drivers/gpu/drm/ttm/ttm_backup.c
> +++ b/drivers/gpu/drm/ttm/ttm_backup.c
> @@ -178,5 +178,6 @@ EXPORT_SYMBOL_GPL(ttm_backup_bytes_avail);
> */
> struct file *ttm_backup_shmem_create(loff_t size)
> {
> - return shmem_file_setup("ttm shmem backup", size, 0);
> + return shmem_file_setup("ttm shmem backup", size,
> + EMPTY_VMA_FLAGS);
> }
> diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
> index 611d20ab966d..f73a5ce87645 100644
> --- a/drivers/gpu/drm/ttm/ttm_tt.c
> +++ b/drivers/gpu/drm/ttm/ttm_tt.c
> @@ -330,7 +330,7 @@ int ttm_tt_swapout(struct ttm_device *bdev, struct ttm_tt *ttm,
> struct page *to_page;
> int i, ret;
>
> - swap_storage = shmem_file_setup("ttm swap", size, 0);
> + swap_storage = shmem_file_setup("ttm swap", size, EMPTY_VMA_FLAGS);
> if (IS_ERR(swap_storage)) {
> pr_err("Failed allocating swap storage\n");
> return PTR_ERR(swap_storage);
> diff --git a/fs/xfs/scrub/xfile.c b/fs/xfs/scrub/xfile.c
> index c753c79df203..fe0584a39f16 100644
> --- a/fs/xfs/scrub/xfile.c
> +++ b/fs/xfs/scrub/xfile.c
> @@ -61,7 +61,8 @@ xfile_create(
> if (!xf)
> return -ENOMEM;
>
> - xf->file = shmem_kernel_file_setup(description, isize, VM_NORESERVE);
> + xf->file = shmem_kernel_file_setup(description, isize,
> + mk_vma_flags(VMA_NORESERVE_BIT));
> if (IS_ERR(xf->file)) {
> error = PTR_ERR(xf->file);
> goto out_xfile;
> diff --git a/fs/xfs/xfs_buf_mem.c b/fs/xfs/xfs_buf_mem.c
> index dcbfa274e06d..fd6f0a5bc0ea 100644
> --- a/fs/xfs/xfs_buf_mem.c
> +++ b/fs/xfs/xfs_buf_mem.c
> @@ -62,7 +62,7 @@ xmbuf_alloc(
> if (!btp)
> return -ENOMEM;
>
> - file = shmem_kernel_file_setup(descr, 0, 0);
> + file = shmem_kernel_file_setup(descr, 0, EMPTY_VMA_FLAGS);
> if (IS_ERR(file)) {
> error = PTR_ERR(file);
> goto out_free_btp;
> diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h
> index e2069b3179c4..a8273b32e041 100644
> --- a/include/linux/shmem_fs.h
> +++ b/include/linux/shmem_fs.h
> @@ -102,12 +102,10 @@ static inline struct shmem_inode_info *SHMEM_I(struct inode *inode)
> extern const struct fs_parameter_spec shmem_fs_parameters[];
> extern void shmem_init(void);
> extern int shmem_init_fs_context(struct fs_context *fc);
> -extern struct file *shmem_file_setup(const char *name,
> - loff_t size, unsigned long flags);
> -extern struct file *shmem_kernel_file_setup(const char *name, loff_t size,
> - unsigned long flags);
> +struct file *shmem_file_setup(const char *name, loff_t size, vma_flags_t flags);
> +struct file *shmem_kernel_file_setup(const char *name, loff_t size, vma_flags_t vma_flags);
> extern struct file *shmem_file_setup_with_mnt(struct vfsmount *mnt,
> - const char *name, loff_t size, unsigned long flags);
> + const char *name, loff_t size, vma_flags_t flags);
> int shmem_zero_setup(struct vm_area_struct *vma);
> int shmem_zero_setup_desc(struct vm_area_desc *desc);
> extern unsigned long shmem_get_unmapped_area(struct file *, unsigned long addr,
> diff --git a/ipc/shm.c b/ipc/shm.c
> index 2c7379c4c647..e8c7d1924c50 100644
> --- a/ipc/shm.c
> +++ b/ipc/shm.c
> @@ -708,6 +708,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
> struct shmid_kernel *shp;
> size_t numpages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
> const bool has_no_reserve = shmflg & SHM_NORESERVE;
> + vma_flags_t acctflag = EMPTY_VMA_FLAGS;
> struct file *file;
> char name[13];
>
> @@ -738,7 +739,6 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
>
> sprintf(name, "SYSV%08x", key);
> if (shmflg & SHM_HUGETLB) {
> - vma_flags_t acctflag = EMPTY_VMA_FLAGS;
> struct hstate *hs;
> size_t hugesize;
>
> @@ -755,14 +755,12 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
> file = hugetlb_file_setup(name, hugesize, acctflag,
> HUGETLB_SHMFS_INODE, (shmflg >> SHM_HUGE_SHIFT) & SHM_HUGE_MASK);
> } else {
> - vm_flags_t acctflag = 0;
> -
> /*
> * Do not allow no accounting for OVERCOMMIT_NEVER, even
> * if it's asked for.
> */
> if (has_no_reserve && sysctl_overcommit_memory != OVERCOMMIT_NEVER)
> - acctflag = VM_NORESERVE;
> + vma_flags_set(&acctflag, VMA_NORESERVE_BIT);
> file = shmem_kernel_file_setup(name, size, acctflag);
> }
> error = PTR_ERR(file);
> diff --git a/mm/memfd.c b/mm/memfd.c
> index 5f95f639550c..f3a8950850a2 100644
> --- a/mm/memfd.c
> +++ b/mm/memfd.c
> @@ -469,7 +469,7 @@ static struct file *alloc_file(const char *name, unsigned int flags)
> (flags >> MFD_HUGE_SHIFT) &
> MFD_HUGE_MASK);
> } else {
> - file = shmem_file_setup(name, 0, VM_NORESERVE);
> + file = shmem_file_setup(name, 0, mk_vma_flags(VMA_NORESERVE_BIT));
> }
> if (IS_ERR(file))
> return file;
> diff --git a/mm/memfd_luo.c b/mm/memfd_luo.c
> index 4f6ba63b4310..a2629dcfd0f1 100644
> --- a/mm/memfd_luo.c
> +++ b/mm/memfd_luo.c
> @@ -443,7 +443,7 @@ static int memfd_luo_retrieve(struct liveupdate_file_op_args *args)
> if (!ser)
> return -EINVAL;
>
> - file = shmem_file_setup("", 0, VM_NORESERVE);
> + file = shmem_file_setup("", 0, mk_vma_flags(VMA_NORESERVE_BIT));
>
> if (IS_ERR(file)) {
> pr_err("failed to setup file: %pe\n", file);
> diff --git a/mm/shmem.c b/mm/shmem.c
> index 0adde3f4df27..97a8f55c7296 100644
> --- a/mm/shmem.c
> +++ b/mm/shmem.c
> @@ -3057,9 +3057,9 @@ static struct offset_ctx *shmem_get_offset_ctx(struct inode *inode)
> }
>
> static struct inode *__shmem_get_inode(struct mnt_idmap *idmap,
> - struct super_block *sb,
> - struct inode *dir, umode_t mode,
> - dev_t dev, unsigned long flags)
> + struct super_block *sb,
> + struct inode *dir, umode_t mode,
> + dev_t dev, vma_flags_t flags)

Using two tabs here would have been less ugly, and below too.

> {
> struct inode *inode;
> struct shmem_inode_info *info;
> @@ -3087,7 +3087,8 @@ static struct inode *__shmem_get_inode(struct mnt_idmap *idmap,
> spin_lock_init(&info->lock);
> atomic_set(&info->stop_eviction, 0);
> info->seals = F_SEAL_SEAL;
> - info->flags = (flags & VM_NORESERVE) ? SHMEM_F_NORESERVE : 0;
> + info->flags = vma_flags_test(&flags, VMA_NORESERVE_BIT)
> + ? SHMEM_F_NORESERVE : 0;
> info->i_crtime = inode_get_mtime(inode);
> info->fsflags = (dir == NULL) ? 0 :
> SHMEM_I(dir)->fsflags & SHMEM_FL_INHERITED;
> @@ -3140,7 +3141,7 @@ static struct inode *__shmem_get_inode(struct mnt_idmap *idmap,
> #ifdef CONFIG_TMPFS_QUOTA
> static struct inode *shmem_get_inode(struct mnt_idmap *idmap,
> struct super_block *sb, struct inode *dir,
> - umode_t mode, dev_t dev, unsigned long flags)
> + umode_t mode, dev_t dev, vma_flags_t flags)

A variable named flags is often incorrectly passed along as the wrong
flags, so I try to avoid it.

> {
> int err;
> struct inode *inode;
> @@ -3166,9 +3167,9 @@ static struct inode *shmem_get_inode(struct mnt_idmap *idmap,
> return ERR_PTR(err);
> }
> #else
> -static inline struct inode *shmem_get_inode(struct mnt_idmap *idmap,
> +static struct inode *shmem_get_inode(struct mnt_idmap *idmap,
> struct super_block *sb, struct inode *dir,
> - umode_t mode, dev_t dev, unsigned long flags)
> + umode_t mode, dev_t dev, vma_flags_t flags)
> {
> return __shmem_get_inode(idmap, sb, dir, mode, dev, flags);
> }
> @@ -3875,7 +3876,8 @@ shmem_mknod(struct mnt_idmap *idmap, struct inode *dir,
> if (!generic_ci_validate_strict_name(dir, &dentry->d_name))
> return -EINVAL;
>
> - inode = shmem_get_inode(idmap, dir->i_sb, dir, mode, dev, VM_NORESERVE);
> + inode = shmem_get_inode(idmap, dir->i_sb, dir, mode, dev,
> + mk_vma_flags(VMA_NORESERVE_BIT));
> if (IS_ERR(inode))
> return PTR_ERR(inode);
>
> @@ -3910,7 +3912,8 @@ shmem_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
> struct inode *inode;
> int error;
>
> - inode = shmem_get_inode(idmap, dir->i_sb, dir, mode, 0, VM_NORESERVE);
> + inode = shmem_get_inode(idmap, dir->i_sb, dir, mode, 0,
> + mk_vma_flags(VMA_NORESERVE_BIT));
> if (IS_ERR(inode)) {
> error = PTR_ERR(inode);
> goto err_out;
> @@ -4107,7 +4110,7 @@ static int shmem_symlink(struct mnt_idmap *idmap, struct inode *dir,
> return -ENAMETOOLONG;
>
> inode = shmem_get_inode(idmap, dir->i_sb, dir, S_IFLNK | 0777, 0,
> - VM_NORESERVE);
> + mk_vma_flags(VMA_NORESERVE_BIT));
> if (IS_ERR(inode))
> return PTR_ERR(inode);
>
> @@ -5108,7 +5111,8 @@ static int shmem_fill_super(struct super_block *sb, struct fs_context *fc)
> #endif /* CONFIG_TMPFS_QUOTA */
>
> inode = shmem_get_inode(&nop_mnt_idmap, sb, NULL,
> - S_IFDIR | sbinfo->mode, 0, VM_NORESERVE);
> + S_IFDIR | sbinfo->mode, 0,
> + mk_vma_flags(VMA_NORESERVE_BIT));
> if (IS_ERR(inode)) {
> error = PTR_ERR(inode);
> goto failed;
> @@ -5808,7 +5812,7 @@ static inline void shmem_unacct_size(unsigned long flags, loff_t size)
>
> static inline struct inode *shmem_get_inode(struct mnt_idmap *idmap,
> struct super_block *sb, struct inode *dir,
> - umode_t mode, dev_t dev, unsigned long flags)
> + umode_t mode, dev_t dev, vma_flags_t flags)
> {
> struct inode *inode = ramfs_get_inode(sb, dir, mode, dev);
> return inode ? inode : ERR_PTR(-ENOSPC);
> @@ -5819,10 +5823,11 @@ static inline struct inode *shmem_get_inode(struct mnt_idmap *idmap,
> /* common code */
>
> static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name,
> - loff_t size, unsigned long vm_flags,
> + loff_t size, vma_flags_t flags,
> unsigned int i_flags)
> {
> - unsigned long flags = (vm_flags & VM_NORESERVE) ? SHMEM_F_NORESERVE : 0;
> + const unsigned long shmem_flags =
> + vma_flags_test(&flags, VMA_NORESERVE_BIT) ? SHMEM_F_NORESERVE : 0;
> struct inode *inode;
> struct file *res;
>
> @@ -5835,13 +5840,13 @@ static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name,
> if (is_idmapped_mnt(mnt))
> return ERR_PTR(-EINVAL);
>
> - if (shmem_acct_size(flags, size))
> + if (shmem_acct_size(shmem_flags, size))
> return ERR_PTR(-ENOMEM);
>
> inode = shmem_get_inode(&nop_mnt_idmap, mnt->mnt_sb, NULL,
> - S_IFREG | S_IRWXUGO, 0, vm_flags);
> + S_IFREG | S_IRWXUGO, 0, flags);
> if (IS_ERR(inode)) {
> - shmem_unacct_size(flags, size);
> + shmem_unacct_size(shmem_flags, size);
> return ERR_CAST(inode);
> }
> inode->i_flags |= i_flags;
> @@ -5864,9 +5869,10 @@ static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name,
> * checks are provided at the key or shm level rather than the inode.
> * @name: name for dentry (to be seen in /proc/<pid>/maps)
> * @size: size to be set for the file
> - * @flags: VM_NORESERVE suppresses pre-accounting of the entire object size
> + * @vma_flags: VMA_NORESERVE_BIT suppresses pre-accounting of the entire object size
> */
> -struct file *shmem_kernel_file_setup(const char *name, loff_t size, unsigned long flags)
> +struct file *shmem_kernel_file_setup(const char *name, loff_t size,
> + vma_flags_t flags)
> {
> return __shmem_file_setup(shm_mnt, name, size, flags, S_PRIVATE);
> }
> @@ -5878,7 +5884,7 @@ EXPORT_SYMBOL_GPL(shmem_kernel_file_setup);
> * @size: size to be set for the file
> * @flags: VM_NORESERVE suppresses pre-accounting of the entire object size
> */
> -struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags)
> +struct file *shmem_file_setup(const char *name, loff_t size, vma_flags_t flags)
> {
> return __shmem_file_setup(shm_mnt, name, size, flags, 0);
> }
> @@ -5889,16 +5895,17 @@ EXPORT_SYMBOL_GPL(shmem_file_setup);
> * @mnt: the tmpfs mount where the file will be created
> * @name: name for dentry (to be seen in /proc/<pid>/maps)
> * @size: size to be set for the file
> - * @flags: VM_NORESERVE suppresses pre-accounting of the entire object size
> + * @flags: VMA_NORESERVE_BIT suppresses pre-accounting of the entire object size
> */
> struct file *shmem_file_setup_with_mnt(struct vfsmount *mnt, const char *name,
> - loff_t size, unsigned long flags)
> + loff_t size, vma_flags_t flags)
> {
> return __shmem_file_setup(mnt, name, size, flags, 0);
> }
> EXPORT_SYMBOL_GPL(shmem_file_setup_with_mnt);
>
> -static struct file *__shmem_zero_setup(unsigned long start, unsigned long end, vm_flags_t vm_flags)
> +static struct file *__shmem_zero_setup(unsigned long start, unsigned long end,
> + vma_flags_t flags)
> {
> loff_t size = end - start;
>
> @@ -5908,7 +5915,7 @@ static struct file *__shmem_zero_setup(unsigned long start, unsigned long end, v
> * accessible to the user through its mapping, use S_PRIVATE flag to
> * bypass file security, in the same way as shmem_kernel_file_setup().
> */
> - return shmem_kernel_file_setup("dev/zero", size, vm_flags);
> + return shmem_kernel_file_setup("dev/zero", size, flags);
> }
>
> /**
> @@ -5918,7 +5925,7 @@ static struct file *__shmem_zero_setup(unsigned long start, unsigned long end, v
> */
> int shmem_zero_setup(struct vm_area_struct *vma)
> {
> - struct file *file = __shmem_zero_setup(vma->vm_start, vma->vm_end, vma->vm_flags);
> + struct file *file = __shmem_zero_setup(vma->vm_start, vma->vm_end, vma->flags);
>
> if (IS_ERR(file))
> return PTR_ERR(file);
> @@ -5939,7 +5946,7 @@ int shmem_zero_setup(struct vm_area_struct *vma)
> */
> int shmem_zero_setup_desc(struct vm_area_desc *desc)
> {
> - struct file *file = __shmem_zero_setup(desc->start, desc->end, desc->vm_flags);
> + struct file *file = __shmem_zero_setup(desc->start, desc->end, desc->vma_flags);
>
> if (IS_ERR(file))
> return PTR_ERR(file);
> diff --git a/security/keys/big_key.c b/security/keys/big_key.c
> index d46862ab90d6..268f702df380 100644
> --- a/security/keys/big_key.c
> +++ b/security/keys/big_key.c
> @@ -103,7 +103,7 @@ int big_key_preparse(struct key_preparsed_payload *prep)
> 0, enckey);
>
> /* save aligned data to file */
> - file = shmem_kernel_file_setup("", enclen, 0);
> + file = shmem_kernel_file_setup("", enclen, EMPTY_VMA_FLAGS);
> if (IS_ERR(file)) {
> ret = PTR_ERR(file);
> goto err_enckey;
> --
> 2.52.0
>