diff options
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/locking.rst | 3 | ||||
| -rw-r--r-- | Documentation/filesystems/porting.rst | 10 | ||||
| -rw-r--r-- | Documentation/filesystems/vfs.rst | 6 |
3 files changed, 16 insertions, 3 deletions
diff --git a/Documentation/filesystems/locking.rst b/Documentation/filesystems/locking.rst index 4bb2627026ec..8f737e76935c 100644 --- a/Documentation/filesystems/locking.rst +++ b/Documentation/filesystems/locking.rst @@ -79,7 +79,8 @@ prototypes:: int (*atomic_open)(struct inode *, struct dentry *, struct file *, unsigned open_flag, umode_t create_mode); - int (*tmpfile) (struct inode *, struct dentry *, umode_t); + int (*tmpfile) (struct user_namespace *, struct inode *, + struct file *, umode_t); int (*fileattr_set)(struct user_namespace *mnt_userns, struct dentry *dentry, struct fileattr *fa); int (*fileattr_get)(struct dentry *dentry, struct fileattr *fa); diff --git a/Documentation/filesystems/porting.rst b/Documentation/filesystems/porting.rst index aee9aaf9f3df..af138241bb4b 100644 --- a/Documentation/filesystems/porting.rst +++ b/Documentation/filesystems/porting.rst @@ -922,3 +922,13 @@ is provided - file_open_root_mnt(). In-tree users adjusted. no_llseek is gone; don't set .llseek to that - just leave it NULL instead. Checks for "does that file have llseek(2), or should it fail with ESPIPE" should be done by looking at FMODE_LSEEK in file->f_mode. + +--- + +**mandatory** + +Calling conventions for ->tmpfile() have changed. It now takes a struct +file pointer instead of struct dentry pointer. d_tmpfile() is similarly +changed to simplify callers. The passed file is in a non-open state and on +success must be opened before returning (e.g. by calling +finish_open_simple()). diff --git a/Documentation/filesystems/vfs.rst b/Documentation/filesystems/vfs.rst index 6cd6953e175b..71b0b8114b18 100644 --- a/Documentation/filesystems/vfs.rst +++ b/Documentation/filesystems/vfs.rst @@ -439,7 +439,7 @@ As of kernel 2.6.22, the following members are defined: void (*update_time)(struct inode *, struct timespec *, int); int (*atomic_open)(struct inode *, struct dentry *, struct file *, unsigned open_flag, umode_t create_mode); - int (*tmpfile) (struct user_namespace *, struct inode *, struct dentry *, umode_t); + int (*tmpfile) (struct user_namespace *, struct inode *, struct file *, umode_t); int (*set_acl)(struct user_namespace *, struct inode *, struct posix_acl *, int); int (*fileattr_set)(struct user_namespace *mnt_userns, struct dentry *dentry, struct fileattr *fa); @@ -589,7 +589,9 @@ otherwise noted. ``tmpfile`` called in the end of O_TMPFILE open(). Optional, equivalent to atomically creating, opening and unlinking a file in given - directory. + directory. On success needs to return with the file already + open; this can be done by calling finish_open_simple() right at + the end. ``fileattr_get`` called on ioctl(FS_IOC_GETFLAGS) and ioctl(FS_IOC_FSGETXATTR) to |