diff options
Diffstat (limited to 'fs/autofs/autofs_i.h')
| -rw-r--r-- | fs/autofs/autofs_i.h | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/fs/autofs/autofs_i.h b/fs/autofs/autofs_i.h index 918826eaceea..4fd555528c5d 100644 --- a/fs/autofs/autofs_i.h +++ b/fs/autofs/autofs_i.h @@ -16,6 +16,7 @@ #include <linux/wait.h> #include <linux/sched.h> #include <linux/sched/signal.h> +#include <uapi/linux/mount.h> #include <linux/mount.h> #include <linux/namei.h> #include <linux/uaccess.h> @@ -25,6 +26,11 @@ #include <linux/completion.h> #include <linux/file.h> #include <linux/magic.h> +#include <linux/fs_context.h> +#include <linux/fs_parser.h> +#include "../mount.h" +#include <linux/ns_common.h> + /* This is the range of ioctl() numbers we claim as ours */ #define AUTOFS_IOC_FIRST AUTOFS_IOC_READY @@ -51,8 +57,6 @@ extern struct file_system_type autofs_fs_type; */ struct autofs_info { struct dentry *dentry; - struct inode *inode; - int flags; struct completion expire_complete; @@ -62,6 +66,7 @@ struct autofs_info { struct list_head expiring; struct autofs_sb_info *sbi; + unsigned long exp_timeout; unsigned long last_used; int count; @@ -81,6 +86,9 @@ struct autofs_info { */ #define AUTOFS_INF_PENDING (1<<2) /* dentry pending mount */ +#define AUTOFS_INF_EXPIRE_SET (1<<3) /* per-dentry expire timeout set for + this mount point. + */ struct autofs_wait_queue { wait_queue_head_t queue; struct autofs_wait_queue *next; @@ -110,6 +118,7 @@ struct autofs_sb_info { int pipefd; struct file *pipe; struct pid *oz_pgrp; + u64 mnt_ns_id; int version; int sub_version; int min_proto; @@ -148,6 +157,11 @@ static inline int autofs_oz_mode(struct autofs_sb_info *sbi) task_pgrp(current) == sbi->oz_pgrp); } +static inline bool autofs_empty(struct autofs_info *ino) +{ + return ino->count < 2; +} + struct inode *autofs_get_inode(struct super_block *, umode_t); void autofs_free_ino(struct autofs_info *); @@ -202,20 +216,36 @@ static inline void managed_dentry_clear_managed(struct dentry *dentry) /* Initializing function */ -int autofs_fill_super(struct super_block *, void *, int); +extern const struct fs_parameter_spec autofs_param_specs[]; +int autofs_init_fs_context(struct fs_context *fc); struct autofs_info *autofs_new_ino(struct autofs_sb_info *); void autofs_clean_ino(struct autofs_info *); -static inline int autofs_prepare_pipe(struct file *pipe) +static inline int autofs_check_pipe(struct file *pipe) { + if (pipe->f_mode & FMODE_PATH) + return -EINVAL; if (!(pipe->f_mode & FMODE_CAN_WRITE)) return -EINVAL; if (!S_ISFIFO(file_inode(pipe)->i_mode)) return -EINVAL; + return 0; +} + +static inline void autofs_set_packet_pipe_flags(struct file *pipe) +{ /* We want a packet pipe */ pipe->f_flags |= O_DIRECT; /* We don't expect -EAGAIN */ pipe->f_flags &= ~O_NONBLOCK; +} + +static inline int autofs_prepare_pipe(struct file *pipe) +{ + int ret = autofs_check_pipe(pipe); + if (ret < 0) + return ret; + autofs_set_packet_pipe_flags(pipe); return 0; } |