diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memfd.c | 2 | ||||
| -rw-r--r-- | mm/shmem.c | 49 |
2 files changed, 12 insertions, 39 deletions
diff --git a/mm/memfd.c b/mm/memfd.c index 27069518e3c5..2bb5e257080e 100644 --- a/mm/memfd.c +++ b/mm/memfd.c @@ -326,7 +326,7 @@ SYSCALL_DEFINE2(memfd_create, goto err_fd; } file->f_mode |= FMODE_LSEEK | FMODE_PREAD | FMODE_PWRITE; - file->f_flags |= O_RDWR | O_LARGEFILE; + file->f_flags |= O_LARGEFILE; if (flags & MFD_ALLOW_SEALING) { file_seals = memfd_file_seals_ptr(file); diff --git a/mm/shmem.c b/mm/shmem.c index 41b9bbf24e16..96bcc51fb9ec 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -3897,18 +3897,11 @@ EXPORT_SYMBOL_GPL(shmem_truncate_range); /* common code */ -static const struct dentry_operations anon_ops = { - .d_dname = simple_dname -}; - static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name, loff_t size, unsigned long flags, unsigned int i_flags) { - struct file *res; struct inode *inode; - struct path path; - struct super_block *sb; - struct qstr this; + struct file *res; if (IS_ERR(mnt)) return ERR_CAST(mnt); @@ -3919,41 +3912,21 @@ static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name, l if (shmem_acct_size(flags, size)) return ERR_PTR(-ENOMEM); - res = ERR_PTR(-ENOMEM); - this.name = name; - this.len = strlen(name); - this.hash = 0; /* will go */ - sb = mnt->mnt_sb; - path.mnt = mntget(mnt); - path.dentry = d_alloc_pseudo(sb, &this); - if (!path.dentry) - goto put_memory; - d_set_d_op(path.dentry, &anon_ops); - - res = ERR_PTR(-ENOSPC); - inode = shmem_get_inode(sb, NULL, S_IFREG | 0777, 0, flags); - if (!inode) - goto put_memory; - + inode = shmem_get_inode(mnt->mnt_sb, NULL, S_IFREG | S_IRWXUGO, 0, + flags); + if (unlikely(!inode)) { + shmem_unacct_size(flags, size); + return ERR_PTR(-ENOSPC); + } inode->i_flags |= i_flags; - d_instantiate(path.dentry, inode); inode->i_size = size; clear_nlink(inode); /* It is unlinked */ res = ERR_PTR(ramfs_nommu_expand_for_mapping(inode, size)); + if (!IS_ERR(res)) + res = alloc_file_pseudo(inode, mnt, name, O_RDWR, + &shmem_file_operations); if (IS_ERR(res)) - goto put_path; - - res = alloc_file(&path, FMODE_WRITE | FMODE_READ, - &shmem_file_operations); - if (IS_ERR(res)) - goto put_path; - - return res; - -put_memory: - shmem_unacct_size(flags, size); -put_path: - path_put(&path); + iput(inode); return res; } |