linux/fs/notify
Christian Brauner eee3a0e939
fanotify: use pidfd_prepare()
We generally try to avoid installing a file descriptor into the caller's
file descriptor table just to close it again via close_fd() in case an
error occurs. Instead we reserve a file descriptor but don't install it
into the caller's file descriptor table yet. If we fail for other,
unrelated reasons we can just close the reserved file descriptor and if
we make it past all meaningful error paths we just install it. Fanotify
gets this right already for one fd type but not for pidfds.

Use the new pidfd_prepare() helper to reserve a pidfd and a pidfd file
and switch to the more common fd allocation and installation pattern.

Acked-by: Jan Kara <jack@suse.cz>
Message-Id: <20230327-pidfd-file-api-v1-3-5c0e9a3158e4@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2023-04-03 11:16:57 +02:00
..
dnotify dnotify: use fsnotify group lock helpers 2022-04-25 14:37:34 +02:00
fanotify fanotify: use pidfd_prepare() 2023-04-03 11:16:57 +02:00
inotify fs: inotify: Fix typo in inotify comment 2022-07-01 14:49:56 +02:00
fdinfo.c fanotify: prepare for setting event flags in ignore mask 2022-07-01 14:51:13 +02:00
fdinfo.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fsnotify.c fsnotify: Fix comment typo 2022-07-26 13:38:47 +02:00
fsnotify.h fsnotify: remove unused declaration 2022-09-09 11:40:03 +02:00
group.c fsnotify: create helpers for group mark_mutex lock 2022-04-25 14:37:22 +02:00
Kconfig fs/notify: Remove "select SRCU" 2023-02-02 16:26:06 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mark.c fsnotify: allow adding an inode mark without pinning inode 2022-04-25 14:42:45 +02:00
notification.c fsnotify: Pass group argument to free_event 2021-10-27 12:34:18 +02:00