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Merge tag 'fsnotify_for_v5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

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Pull fanotify updates from Jan Kara:
 "Support for fanotify directory events and changes to make waiting for
  fanotify permission event response killable"

* tag 'fsnotify_for_v5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: (25 commits)
  fanotify: Make waits for fanotify events only killable
  fanotify: Use interruptible wait when waiting for permission events
  fanotify: Track permission event state
  fanotify: Simplify cleaning of access_list
  fsnotify: Create function to remove event from notification list
  fanotify: Move locking inside get_one_event()
  fanotify: Fold dequeue_event() into process_access_response()
  fanotify: Select EXPORTFS
  fanotify: report FAN_ONDIR to listener with FAN_REPORT_FID
  fanotify: add support for create/attrib/move/delete events
  fanotify: support events with data type FSNOTIFY_EVENT_INODE
  fanotify: check FS_ISDIR flag instead of d_is_dir()
  fsnotify: report FS_ISDIR flag with MOVE_SELF and DELETE_SELF events
  fanotify: use vfs_get_fsid() helper instead of vfs_statfs()
  vfs: add vfs_get_fsid() helper
  fanotify: cache fsid in fsnotify_mark_connector
  fanotify: enable FAN_REPORT_FID init flag
  fanotify: copy event fid info to user
  fanotify: encode file identifier for FAN_REPORT_FID
  fanotify: open code fill_event_metadata()
  ...
This commit is contained in:
Linus Torvalds
2019-03-07 09:03:38 -08:00
parent a9913f23f3 b519057981
commit 0556161ff9
16 changed files with 826 additions and 262 deletions
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29
include/uapi/linux/fanotify.h
View File

@@ -7,9 +7,16 @@
/* the following events that user-space can register for */
#define FAN_ACCESS 0x00000001 /* File was accessed */
#define FAN_MODIFY 0x00000002 /* File was modified */
#define FAN_ATTRIB 0x00000004 /* Metadata changed */
#define FAN_CLOSE_WRITE 0x00000008 /* Writtable file closed */
#define FAN_CLOSE_NOWRITE 0x00000010 /* Unwrittable file closed */
#define FAN_OPEN 0x00000020 /* File was opened */
#define FAN_MOVED_FROM 0x00000040 /* File was moved from X */
#define FAN_MOVED_TO 0x00000080 /* File was moved to Y */
#define FAN_CREATE 0x00000100 /* Subfile was created */
#define FAN_DELETE 0x00000200 /* Subfile was deleted */
#define FAN_DELETE_SELF 0x00000400 /* Self was deleted */
#define FAN_MOVE_SELF 0x00000800 /* Self was moved */
#define FAN_OPEN_EXEC 0x00001000 /* File was opened for exec */
#define FAN_Q_OVERFLOW 0x00004000 /* Event queued overflowed */
@@ -24,6 +31,7 @@
/* helper events */
#define FAN_CLOSE (FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE) /* close */
#define FAN_MOVE (FAN_MOVED_FROM | FAN_MOVED_TO) /* moves */
/* flags used for fanotify_init() */
#define FAN_CLOEXEC 0x00000001
@@ -44,6 +52,7 @@
/* Flags to determine fanotify event format */
#define FAN_REPORT_TID 0x00000100 /* event->pid is thread id */
#define FAN_REPORT_FID 0x00000200 /* Report unique file id */
/* Deprecated - do not use this in programs and do not add new flags here! */
#define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK | \
@@ -106,6 +115,26 @@ struct fanotify_event_metadata {
__s32 pid;
};
#define FAN_EVENT_INFO_TYPE_FID 1
/* Variable length info record following event metadata */
struct fanotify_event_info_header {
__u8 info_type;
__u8 pad;
__u16 len;
};
/* Unique file identifier info record */
struct fanotify_event_info_fid {
struct fanotify_event_info_header hdr;
__kernel_fsid_t fsid;
/*
* Following is an opaque struct file_handle that can be passed as
* an argument to open_by_handle_at(2).
*/
unsigned char handle[0];
};
struct fanotify_response {
__s32 fd;
__u32 response;