From 83c4c4b0a3aadc1ce7b5b2870ce1fc1f65498da0 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 21 Jan 2014 15:48:15 -0800 Subject: [PATCH] fsnotify: remove .should_send_event callback After removing event structure creation from the generic layer there is no reason for separate .should_send_event and .handle_event callbacks. So just remove the first one. Signed-off-by: Jan Kara Reviewed-by: Christoph Hellwig Cc: Eric Paris Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/notify/dnotify/dnotify.c | 22 ++++------------------ fs/notify/fanotify/fanotify.c | 18 ++++++++++-------- fs/notify/fsnotify.c | 5 ----- fs/notify/inotify/inotify_fsnotify.c | 24 +++++++----------------- include/linux/fsnotify_backend.h | 4 ---- kernel/audit_tree.c | 12 +----------- kernel/audit_watch.c | 9 --------- 7 files changed, 22 insertions(+), 72 deletions(-) diff --git a/fs/notify/dnotify/dnotify.c b/fs/notify/dnotify/dnotify.c index bfca53dbbf34..928688e3ee2f 100644 --- a/fs/notify/dnotify/dnotify.c +++ b/fs/notify/dnotify/dnotify.c @@ -94,6 +94,10 @@ static int dnotify_handle_event(struct fsnotify_group *group, struct fown_struct *fown; __u32 test_mask = mask & ~FS_EVENT_ON_CHILD; + /* not a dir, dnotify doesn't care */ + if (!S_ISDIR(inode->i_mode)) + return 0; + BUG_ON(vfsmount_mark); dn_mark = container_of(inode_mark, struct dnotify_mark, fsn_mark); @@ -121,23 +125,6 @@ static int dnotify_handle_event(struct fsnotify_group *group, return 0; } -/* - * Given an inode and mask determine if dnotify would be interested in sending - * userspace notification for that pair. - */ -static bool dnotify_should_send_event(struct fsnotify_group *group, - struct inode *inode, - struct fsnotify_mark *inode_mark, - struct fsnotify_mark *vfsmount_mark, - __u32 mask, void *data, int data_type) -{ - /* not a dir, dnotify doesn't care */ - if (!S_ISDIR(inode->i_mode)) - return false; - - return true; -} - static void dnotify_free_mark(struct fsnotify_mark *fsn_mark) { struct dnotify_mark *dn_mark = container_of(fsn_mark, @@ -151,7 +138,6 @@ static void dnotify_free_mark(struct fsnotify_mark *fsn_mark) static struct fsnotify_ops dnotify_fsnotify_ops = { .handle_event = dnotify_handle_event, - .should_send_event = dnotify_should_send_event, .free_group_priv = NULL, .freeing_mark = NULL, .free_event = NULL, diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c index c26268d7bd9d..1f8f05220f8d 100644 --- a/fs/notify/fanotify/fanotify.c +++ b/fs/notify/fanotify/fanotify.c @@ -88,18 +88,17 @@ static int fanotify_get_response_from_access(struct fsnotify_group *group, } #endif -static bool fanotify_should_send_event(struct fsnotify_group *group, - struct inode *inode, - struct fsnotify_mark *inode_mark, +static bool fanotify_should_send_event(struct fsnotify_mark *inode_mark, struct fsnotify_mark *vfsmnt_mark, - __u32 event_mask, void *data, int data_type) + u32 event_mask, + void *data, int data_type) { __u32 marks_mask, marks_ignored_mask; struct path *path = data; - pr_debug("%s: group=%p inode=%p inode_mark=%p vfsmnt_mark=%p " - "mask=%x data=%p data_type=%d\n", __func__, group, inode, - inode_mark, vfsmnt_mark, event_mask, data, data_type); + pr_debug("%s: inode_mark=%p vfsmnt_mark=%p mask=%x data=%p" + " data_type=%d\n", __func__, inode_mark, vfsmnt_mark, + event_mask, data, data_type); /* if we don't have enough info to send an event to userspace say no */ if (data_type != FSNOTIFY_EVENT_PATH) @@ -163,6 +162,10 @@ static int fanotify_handle_event(struct fsnotify_group *group, BUILD_BUG_ON(FAN_ACCESS_PERM != FS_ACCESS_PERM); BUILD_BUG_ON(FAN_ONDIR != FS_ISDIR); + if (!fanotify_should_send_event(inode_mark, fanotify_mark, mask, data, + data_type)) + return 0; + pr_debug("%s: group=%p inode=%p mask=%x\n", __func__, group, inode, mask); @@ -225,7 +228,6 @@ static void fanotify_free_event(struct fsnotify_event *fsn_event) const struct fsnotify_ops fanotify_fsnotify_ops = { .handle_event = fanotify_handle_event, - .should_send_event = fanotify_should_send_event, .free_group_priv = fanotify_free_group_priv, .free_event = fanotify_free_event, .freeing_mark = NULL, diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c index 7c754c91c3f6..1d4e1ea2f37c 100644 --- a/fs/notify/fsnotify.c +++ b/fs/notify/fsnotify.c @@ -177,11 +177,6 @@ static int send_to_group(struct inode *to_tell, if (!inode_test_mask && !vfsmount_test_mask) return 0; - if (group->ops->should_send_event(group, to_tell, inode_mark, - vfsmount_mark, mask, data, - data_is) == false) - return 0; - return group->ops->handle_event(group, to_tell, inode_mark, vfsmount_mark, mask, data, data_is, file_name); diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c index 6fabbd163d16..aad1a35e9af1 100644 --- a/fs/notify/inotify/inotify_fsnotify.c +++ b/fs/notify/inotify/inotify_fsnotify.c @@ -81,6 +81,13 @@ int inotify_handle_event(struct fsnotify_group *group, BUG_ON(vfsmount_mark); + if ((inode_mark->mask & FS_EXCL_UNLINK) && + (data_type == FSNOTIFY_EVENT_PATH)) { + struct path *path = data; + + if (d_unlinked(path->dentry)) + return 0; + } if (file_name) { len = strlen(file_name); alloc_len += len + 1; @@ -122,22 +129,6 @@ static void inotify_freeing_mark(struct fsnotify_mark *fsn_mark, struct fsnotify inotify_ignored_and_remove_idr(fsn_mark, group); } -static bool inotify_should_send_event(struct fsnotify_group *group, struct inode *inode, - struct fsnotify_mark *inode_mark, - struct fsnotify_mark *vfsmount_mark, - __u32 mask, void *data, int data_type) -{ - if ((inode_mark->mask & FS_EXCL_UNLINK) && - (data_type == FSNOTIFY_EVENT_PATH)) { - struct path *path = data; - - if (d_unlinked(path->dentry)) - return false; - } - - return true; -} - /* * This is NEVER supposed to be called. Inotify marks should either have been * removed from the idr when the watch was removed or in the @@ -189,7 +180,6 @@ static void inotify_free_event(struct fsnotify_event *fsn_event) const struct fsnotify_ops inotify_fsnotify_ops = { .handle_event = inotify_handle_event, - .should_send_event = inotify_should_send_event, .free_group_priv = inotify_free_group_priv, .free_event = inotify_free_event, .freeing_mark = inotify_freeing_mark, diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index 7f3d7dcfcd00..7d8d5e608594 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -94,10 +94,6 @@ struct fsnotify_fname; * userspace messages that marks have been removed. */ struct fsnotify_ops { - bool (*should_send_event)(struct fsnotify_group *group, struct inode *inode, - struct fsnotify_mark *inode_mark, - struct fsnotify_mark *vfsmount_mark, - __u32 mask, void *data, int data_type); int (*handle_event)(struct fsnotify_group *group, struct inode *inode, struct fsnotify_mark *inode_mark, diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c index bcc0b1821227..ae8103b057fa 100644 --- a/kernel/audit_tree.c +++ b/kernel/audit_tree.c @@ -918,8 +918,7 @@ static int audit_tree_handle_event(struct fsnotify_group *group, u32 mask, void *data, int data_type, const unsigned char *file_name) { - BUG(); - return -EOPNOTSUPP; + return 0; } static void audit_tree_freeing_mark(struct fsnotify_mark *entry, struct fsnotify_group *group) @@ -935,17 +934,8 @@ static void audit_tree_freeing_mark(struct fsnotify_mark *entry, struct fsnotify BUG_ON(atomic_read(&entry->refcnt) < 1); } -static bool audit_tree_send_event(struct fsnotify_group *group, struct inode *inode, - struct fsnotify_mark *inode_mark, - struct fsnotify_mark *vfsmount_mark, - __u32 mask, void *data, int data_type) -{ - return false; -} - static const struct fsnotify_ops audit_tree_ops = { .handle_event = audit_tree_handle_event, - .should_send_event = audit_tree_send_event, .free_group_priv = NULL, .free_event = NULL, .freeing_mark = audit_tree_freeing_mark, diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c index a760c32cb639..367ac9a79acc 100644 --- a/kernel/audit_watch.c +++ b/kernel/audit_watch.c @@ -465,14 +465,6 @@ void audit_remove_watch_rule(struct audit_krule *krule) } } -static bool audit_watch_should_send_event(struct fsnotify_group *group, struct inode *inode, - struct fsnotify_mark *inode_mark, - struct fsnotify_mark *vfsmount_mark, - __u32 mask, void *data, int data_type) -{ - return true; -} - /* Update watch data in audit rules based on fsnotify events. */ static int audit_watch_handle_event(struct fsnotify_group *group, struct inode *to_tell, @@ -512,7 +504,6 @@ static int audit_watch_handle_event(struct fsnotify_group *group, } static const struct fsnotify_ops audit_watch_fsnotify_ops = { - .should_send_event = audit_watch_should_send_event, .handle_event = audit_watch_handle_event, .free_group_priv = NULL, .freeing_mark = NULL, -- 2.30.2