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. Signed-off-by: Lorenzo Stoakes <[email protected]> --- 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/shmem.c | 59 +++++++++++++---------- security/keys/big_key.c | 2 +- 15 files changed, 56 insertions(+), 48 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/shmem.c b/mm/shmem.c index 0b4c8c70d017..94081461fb0f 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -3034,9 +3034,9 @@ 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) { struct inode *inode; struct shmem_inode_info *info; @@ -3064,7 +3064,8 @@ 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; @@ -3117,7 +3118,7 @@ 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) { int err; struct inode *inode; @@ -3143,9 +3144,9 @@ 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); } @@ -3852,7 +3853,8 @@ 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); @@ -3887,7 +3889,8 @@ 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; @@ -4084,7 +4087,7 @@ 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); @@ -5085,7 +5088,8 @@ 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; @@ -5785,7 +5789,7 @@ 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); @@ -5796,10 +5800,11 @@ 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; @@ -5812,13 +5817,13 @@ 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; @@ -5841,9 +5846,10 @@ 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); } @@ -5855,7 +5861,7 @@ 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); } @@ -5866,16 +5872,17 @@ 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; @@ -5885,7 +5892,7 @@ 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); } /** @@ -5895,7 +5902,7 @@ 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); @@ -5916,7 +5923,7 @@ 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
