diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ubifs/dir.c | 2 | ||||
| -rw-r--r-- | fs/ubifs/file.c | 2 | ||||
| -rw-r--r-- | fs/ubifs/ioctl.c | 78 | ||||
| -rw-r--r-- | fs/ubifs/ubifs.h | 3 |
4 files changed, 43 insertions, 42 deletions
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c index d9d8d7794eff..5bd8482e660a 100644 --- a/fs/ubifs/dir.c +++ b/fs/ubifs/dir.c @@ -1637,6 +1637,8 @@ const struct inode_operations ubifs_dir_inode_operations = { .listxattr = ubifs_listxattr, .update_time = ubifs_update_time, .tmpfile = ubifs_tmpfile, + .fileattr_get = ubifs_fileattr_get, + .fileattr_set = ubifs_fileattr_set, }; const struct file_operations ubifs_dir_operations = { diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index 0e4b4be3aa26..2e4e1d159969 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -1648,6 +1648,8 @@ const struct inode_operations ubifs_file_inode_operations = { .getattr = ubifs_getattr, .listxattr = ubifs_listxattr, .update_time = ubifs_update_time, + .fileattr_get = ubifs_fileattr_get, + .fileattr_set = ubifs_fileattr_set, }; const struct inode_operations ubifs_symlink_inode_operations = { diff --git a/fs/ubifs/ioctl.c b/fs/ubifs/ioctl.c index 2326d5122beb..c6a863487780 100644 --- a/fs/ubifs/ioctl.c +++ b/fs/ubifs/ioctl.c @@ -14,6 +14,7 @@ #include <linux/compat.h> #include <linux/mount.h> +#include <linux/fileattr.h> #include "ubifs.h" /* Need to be kept consistent with checked flags in ioctl2ubifs() */ @@ -103,7 +104,7 @@ static int ubifs2ioctl(int ubifs_flags) static int setflags(struct inode *inode, int flags) { - int oldflags, err, release; + int err, release; struct ubifs_inode *ui = ubifs_inode(inode); struct ubifs_info *c = inode->i_sb->s_fs_info; struct ubifs_budget_req req = { .dirtied_ino = 1, @@ -114,11 +115,6 @@ static int setflags(struct inode *inode, int flags) return err; mutex_lock(&ui->ui_mutex); - oldflags = ubifs2ioctl(ui->flags); - err = vfs_ioc_setflags_prepare(inode, oldflags, flags); - if (err) - goto out_unlock; - ui->flags &= ~ioctl2ubifs(UBIFS_SETTABLE_IOCTL_FLAGS); ui->flags |= ioctl2ubifs(flags); ubifs_set_inode_flags(inode); @@ -132,54 +128,52 @@ static int setflags(struct inode *inode, int flags) if (IS_SYNC(inode)) err = write_inode_now(inode, 1); return err; +} -out_unlock: - mutex_unlock(&ui->ui_mutex); - ubifs_release_budget(c, &req); - return err; +int ubifs_fileattr_get(struct dentry *dentry, struct fileattr *fa) +{ + struct inode *inode = d_inode(dentry); + int flags = ubifs2ioctl(ubifs_inode(inode)->flags); + + if (d_is_special(dentry)) + return -ENOTTY; + + dbg_gen("get flags: %#x, i_flags %#x", flags, inode->i_flags); + fileattr_fill_flags(fa, flags); + + return 0; } -long ubifs_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +int ubifs_fileattr_set(struct user_namespace *mnt_userns, + struct dentry *dentry, struct fileattr *fa) { - int flags, err; - struct inode *inode = file_inode(file); + struct inode *inode = d_inode(dentry); + int flags = fa->flags; - switch (cmd) { - case FS_IOC_GETFLAGS: - flags = ubifs2ioctl(ubifs_inode(inode)->flags); + if (d_is_special(dentry)) + return -ENOTTY; - dbg_gen("get flags: %#x, i_flags %#x", flags, inode->i_flags); - return put_user(flags, (int __user *) arg); + if (fileattr_has_fsx(fa)) + return -EOPNOTSUPP; - case FS_IOC_SETFLAGS: { - if (IS_RDONLY(inode)) - return -EROFS; + if (flags & ~UBIFS_GETTABLE_IOCTL_FLAGS) + return -EOPNOTSUPP; - if (!inode_owner_or_capable(&init_user_ns, inode)) - return -EACCES; + flags &= UBIFS_SETTABLE_IOCTL_FLAGS; - if (get_user(flags, (int __user *) arg)) - return -EFAULT; + if (!S_ISDIR(inode->i_mode)) + flags &= ~FS_DIRSYNC_FL; - if (flags & ~UBIFS_GETTABLE_IOCTL_FLAGS) - return -EOPNOTSUPP; - flags &= UBIFS_SETTABLE_IOCTL_FLAGS; + dbg_gen("set flags: %#x, i_flags %#x", flags, inode->i_flags); + return setflags(inode, flags); +} - if (!S_ISDIR(inode->i_mode)) - flags &= ~FS_DIRSYNC_FL; +long ubifs_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + int err; + struct inode *inode = file_inode(file); - /* - * Make sure the file-system is read-write and make sure it - * will not become read-only while we are changing the flags. - */ - err = mnt_want_write_file(file); - if (err) - return err; - dbg_gen("set flags: %#x, i_flags %#x", flags, inode->i_flags); - err = setflags(inode, flags); - mnt_drop_write_file(file); - return err; - } + switch (cmd) { case FS_IOC_SET_ENCRYPTION_POLICY: { struct ubifs_info *c = inode->i_sb->s_fs_info; diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index 7fdfdbda4b8a..b65c599a386a 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -2053,6 +2053,9 @@ int ubifs_recover_size(struct ubifs_info *c, bool in_place); void ubifs_destroy_size_tree(struct ubifs_info *c); /* ioctl.c */ +int ubifs_fileattr_get(struct dentry *dentry, struct fileattr *fa); +int ubifs_fileattr_set(struct user_namespace *mnt_userns, + struct dentry *dentry, struct fileattr *fa); long ubifs_ioctl(struct file *file, unsigned int cmd, unsigned long arg); void ubifs_set_inode_flags(struct inode *inode); #ifdef CONFIG_COMPAT |