diff options
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 42 |
1 files changed, 31 insertions, 11 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 25c40b9f848..c0e53372b08 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -402,6 +402,7 @@ struct inodes_stat_t { #include <linux/atomic.h> #include <linux/shrinker.h> #include <linux/migrate_mode.h> +#include <linux/uidgid.h> #include <asm/byteorder.h> @@ -469,8 +470,8 @@ typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset, struct iattr { unsigned int ia_valid; umode_t ia_mode; - uid_t ia_uid; - gid_t ia_gid; + kuid_t ia_uid; + kgid_t ia_gid; loff_t ia_size; struct timespec ia_atime; struct timespec ia_mtime; @@ -761,8 +762,8 @@ struct posix_acl; struct inode { umode_t i_mode; unsigned short i_opflags; - uid_t i_uid; - gid_t i_gid; + kuid_t i_uid; + kgid_t i_gid; unsigned int i_flags; #ifdef CONFIG_FS_POSIX_ACL @@ -927,6 +928,31 @@ static inline void i_size_write(struct inode *inode, loff_t i_size) #endif } +/* Helper functions so that in most cases filesystems will + * not need to deal directly with kuid_t and kgid_t and can + * instead deal with the raw numeric values that are stored + * in the filesystem. + */ +static inline uid_t i_uid_read(const struct inode *inode) +{ + return from_kuid(&init_user_ns, inode->i_uid); +} + +static inline gid_t i_gid_read(const struct inode *inode) +{ + return from_kgid(&init_user_ns, inode->i_gid); +} + +static inline void i_uid_write(struct inode *inode, uid_t uid) +{ + inode->i_uid = make_kuid(&init_user_ns, uid); +} + +static inline void i_gid_write(struct inode *inode, gid_t gid) +{ + inode->i_gid = make_kgid(&init_user_ns, gid); +} + static inline unsigned iminor(const struct inode *inode) { return MINOR(inode->i_rdev); @@ -943,7 +969,7 @@ struct fown_struct { rwlock_t lock; /* protects pid, uid, euid fields */ struct pid *pid; /* pid or -pgrp where SIGIO should be sent */ enum pid_type pid_type; /* Kind of process group SIGIO should be sent to */ - uid_t uid, euid; /* uid/euid of process setting the owner */ + kuid_t uid, euid; /* uid/euid of process setting the owner */ int signum; /* posix.1b rt signal to be delivered on IO */ }; @@ -1527,12 +1553,6 @@ enum { #define vfs_check_frozen(sb, level) \ wait_event((sb)->s_wait_unfrozen, ((sb)->s_frozen < (level))) -/* - * until VFS tracks user namespaces for inodes, just make all files - * belong to init_user_ns - */ -extern struct user_namespace init_user_ns; -#define inode_userns(inode) (&init_user_ns) extern bool inode_owner_or_capable(const struct inode *inode); /* not quite ready to be deprecated, but... */ |