From 2612abb51b11ffd2d75c472b11178115f5808909 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Wed, 28 Jul 2010 10:18:39 -0400 Subject: [PATCH] fsnotify: cleanup should_send_event The change to use srcu and walk the object list rather than the global fsnotify_group list means that should_send_event is no longer needed for a number of groups and can be simplified for others. Do that. Signed-off-by: Eric Paris --- fs/notify/dnotify/dnotify.c | 11 +---------- fs/notify/fanotify/fanotify.c | 23 ++++++++--------------- fs/notify/fsnotify.c | 4 ++-- fs/notify/inotify/inotify_fsnotify.c | 14 +++----------- kernel/audit_tree.c | 2 +- kernel/audit_watch.c | 7 +------ 6 files changed, 16 insertions(+), 45 deletions(-) diff --git a/fs/notify/dnotify/dnotify.c b/fs/notify/dnotify/dnotify.c index e3e855ff0dd..c3dc15879a5 100644 --- a/fs/notify/dnotify/dnotify.c +++ b/fs/notify/dnotify/dnotify.c @@ -129,20 +129,11 @@ static bool dnotify_should_send_event(struct fsnotify_group *group, struct fsnotify_mark *mark, __u32 mask, void *data, int data_type) { - bool send; - - /* !dir_notify_enable should never get here, don't waste time checking - if (!dir_notify_enable) - return 0; */ - /* not a dir, dnotify doesn't care */ if (!S_ISDIR(inode->i_mode)) return false; - mask = (mask & ~FS_EVENT_ON_CHILD); - send = (mask & mark->mask); - - return send; + return true; } static void dnotify_free_mark(struct fsnotify_mark *fsn_mark) diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c index 666ccb73306..fbd7f35c613 100644 --- a/fs/notify/fanotify/fanotify.c +++ b/fs/notify/fanotify/fanotify.c @@ -185,22 +185,15 @@ static bool should_send_inode_event(struct fsnotify_group *group, pr_debug("%s: group=%p inode=%p mark=%p mask=%x\n", __func__, group, inode, mark, mask); - /* if the event is for a child and this inode doesn't care about - * events on the child, don't send it! */ + /* + * if the event is for a child and this inode doesn't care about + * events on the child, don't send it! + */ if ((mask & FS_EVENT_ON_CHILD) && - !(mark->mask & FS_EVENT_ON_CHILD)) { - mask = 0; - } else { - /* - * We care about children, but do we care about this particular - * type of event? - */ - mask &= ~FS_EVENT_ON_CHILD; - mask &= mark->mask; - mask &= ~mark->ignored_mask; - } - - return mask; + !(mark->mask & FS_EVENT_ON_CHILD)) + return false; + else + return true; } static bool fanotify_should_send_event(struct fsnotify_group *group, struct inode *to_tell, diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c index 59d639996ca..53b31f46d69 100644 --- a/fs/notify/fsnotify.c +++ b/fs/notify/fsnotify.c @@ -180,8 +180,8 @@ static int send_to_group(struct fsnotify_group *group, struct inode *to_tell, " data_is=%d cookie=%d event=%p\n", __func__, group, to_tell, mnt, mark, mask, data, data_is, cookie, *event); - if (!group->ops->should_send_event(group, to_tell, mnt, mark, mask, - data, data_is)) + if (group->ops->should_send_event(group, to_tell, mnt, mark, mask, + data, data_is) == false) return 0; if (!*event) { *event = fsnotify_create_event(to_tell, mask, data, diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c index aa3f93c03e0..7cf518b25da 100644 --- a/fs/notify/inotify/inotify_fsnotify.c +++ b/fs/notify/inotify/inotify_fsnotify.c @@ -142,23 +142,15 @@ static bool inotify_should_send_event(struct fsnotify_group *group, struct inode struct vfsmount *mnt, struct fsnotify_mark *mark, __u32 mask, void *data, int data_type) { - bool send; - - pr_debug("%s: group=%p inode=%p mask=%x data=%p data_type=%d\n", - __func__, group, inode, mask, data, data_type); - - mask = (mask & ~FS_EVENT_ON_CHILD); - send = (mark->mask & mask); - - if (send && (mark->mask & FS_EXCL_UNLINK) && + if ((mark->mask & FS_EXCL_UNLINK) && (data_type == FSNOTIFY_EVENT_FILE)) { struct file *file = data; if (d_unlinked(file->f_path.dentry)) - send = false; + return false; } - return send; + return true; } /* diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c index 584b9436021..2abb99f3459 100644 --- a/kernel/audit_tree.c +++ b/kernel/audit_tree.c @@ -923,7 +923,7 @@ static bool audit_tree_send_event(struct fsnotify_group *group, struct inode *in struct vfsmount *mnt, struct fsnotify_mark *mark, __u32 mask, void *data, int data_type) { - return 0; + return false; } static const struct fsnotify_ops audit_tree_ops = { diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c index 9173bcf3376..097a61c65fe 100644 --- a/kernel/audit_watch.c +++ b/kernel/audit_watch.c @@ -514,12 +514,7 @@ static bool audit_watch_should_send_event(struct fsnotify_group *group, struct i struct vfsmount *mnt, struct fsnotify_mark *mark, __u32 mask, void *data, int data_type) { - bool send; - - mask = (mask & ~FS_EVENT_ON_CHILD); - send = (mark->mask & mask); - - return send; + return true; } /* Update watch data in audit rules based on fsnotify events. */ -- 2.39.3