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Subject[PATCH =-v3 15/21] fanotify: send tgid with notification messages
Date
Send tgid of original process to fanotify listeners

Signed-off-by: Eric Paris <eparis@redhat.com>
---

fs/notify/fanotify.h | 1 +
fs/notify/notification.c | 2 ++
include/linux/fanotify.h | 1 +
3 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/fs/notify/fanotify.h b/fs/notify/fanotify.h
index 55b0bab..e6d7898 100644
--- a/fs/notify/fanotify.h
+++ b/fs/notify/fanotify.h
@@ -49,6 +49,7 @@ struct fanotify_event {
/* if waiting for a userspace access answer this is the cookie they will send back */
unsigned long cookie;
pid_t pid; /* pid of the original process */
+ pid_t tgid; /* tgid of the original process */
spinlock_t response_lock; /* protects response */
unsigned int response; /* userspace answer to question */
};
diff --git a/fs/notify/notification.c b/fs/notify/notification.c
index da2045a..acd13b0 100644
--- a/fs/notify/notification.c
+++ b/fs/notify/notification.c
@@ -182,6 +182,7 @@ struct fanotify_event *create_event(struct file *file, unsigned int mask)
event->mask = mask;

event->pid = current->pid;
+ event->tgid = current->tgid;

WARN_ON(!event->path.dentry);
WARN_ON(!event->path.mnt);
@@ -248,6 +249,7 @@ int fanotify_create_event_fd(struct fanotify_group *group, struct fanotify_event
data->mask = event->mask;
data->cookie = event->cookie;
data->pid = event->pid;
+ data->tgid = event->tgid;

fanotify_put_event(event);

diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index a5cded3..6cbcfc3 100644
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -67,6 +67,7 @@ struct fanotify_event_metadata {
__u32 mask;
__u64 cookie;
pid_t pid;
+ pid_t tgid;
} __attribute__((packed));

/* fanotify getsockopt optvals */


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