diff options
Diffstat (limited to 'include/linux/fs_struct.h')
| -rw-r--r-- | include/linux/fs_struct.h | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h index 783b48dedb72..0070764b790a 100644 --- a/include/linux/fs_struct.h +++ b/include/linux/fs_struct.h @@ -2,14 +2,14 @@ #ifndef _LINUX_FS_STRUCT_H #define _LINUX_FS_STRUCT_H +#include <linux/sched.h> #include <linux/path.h> #include <linux/spinlock.h> #include <linux/seqlock.h> struct fs_struct { int users; - spinlock_t lock; - seqcount_spinlock_t seq; + seqlock_t seq; int umask; int in_exec; struct path root, pwd; @@ -26,20 +26,25 @@ extern int unshare_fs_struct(void); static inline void get_fs_root(struct fs_struct *fs, struct path *root) { - spin_lock(&fs->lock); + read_seqlock_excl(&fs->seq); *root = fs->root; path_get(root); - spin_unlock(&fs->lock); + read_sequnlock_excl(&fs->seq); } static inline void get_fs_pwd(struct fs_struct *fs, struct path *pwd) { - spin_lock(&fs->lock); + read_seqlock_excl(&fs->seq); *pwd = fs->pwd; path_get(pwd); - spin_unlock(&fs->lock); + read_sequnlock_excl(&fs->seq); } extern bool current_chrooted(void); +static inline int current_umask(void) +{ + return current->fs->umask; +} + #endif /* _LINUX_FS_STRUCT_H */ |