From: Amir Goldstein <amir73il@gmail.com>
To: Jan Kara <jack@suse.cz>
Cc: linux-fsdevel@vger.kernel.org
Subject: [PATCH v3 11/13] fsnotify: add fsnotify_connector_inode() wrapper
Date: Fri, 20 Apr 2018 16:10:59 -0700 [thread overview]
Message-ID: <1524265861-6316-12-git-send-email-amir73il@gmail.com> (raw)
In-Reply-To: <1524265861-6316-1-git-send-email-amir73il@gmail.com>
Soon we will be changing the way to dereference an inode object from
connector object. Introduce a wrapper to abstract this dereference.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
---
fs/notify/fdinfo.c | 4 ++--
fs/notify/mark.c | 3 ++-
include/linux/fsnotify_backend.h | 6 ++++++
kernel/audit_tree.c | 11 ++++++-----
4 files changed, 16 insertions(+), 8 deletions(-)
diff --git a/fs/notify/fdinfo.c b/fs/notify/fdinfo.c
index 10aac1942c9f..b3cf03e347a8 100644
--- a/fs/notify/fdinfo.c
+++ b/fs/notify/fdinfo.c
@@ -81,7 +81,7 @@ static void inotify_fdinfo(struct seq_file *m, struct fsnotify_mark *mark)
return;
inode_mark = container_of(mark, struct inotify_inode_mark, fsn_mark);
- inode = igrab(mark->connector->inode);
+ inode = igrab(fsnotify_connector_inode(mark->connector));
if (inode) {
/*
* IN_ALL_EVENTS represents all of the mask bits
@@ -117,7 +117,7 @@ static void fanotify_fdinfo(struct seq_file *m, struct fsnotify_mark *mark)
mflags |= FAN_MARK_IGNORED_SURV_MODIFY;
if (mark->connector->type == FSNOTIFY_OBJ_TYPE_INODE) {
- inode = igrab(mark->connector->inode);
+ inode = igrab(fsnotify_connector_inode(mark->connector));
if (!inode)
return;
seq_printf(m, "fanotify ino:%lx sdev:%x mflags:%x mask:%x ignored_mask:%x ",
diff --git a/fs/notify/mark.c b/fs/notify/mark.c
index 771178c46eeb..7103a0a442e7 100644
--- a/fs/notify/mark.c
+++ b/fs/notify/mark.c
@@ -140,7 +140,8 @@ void fsnotify_recalc_mask(struct fsnotify_mark_connector *conn)
__fsnotify_recalc_mask(conn);
spin_unlock(&conn->lock);
if (conn->type == FSNOTIFY_OBJ_TYPE_INODE)
- __fsnotify_update_child_dentry_flags(conn->inode);
+ __fsnotify_update_child_dentry_flags(
+ fsnotify_connector_inode(conn));
}
/* Free all connectors queued for freeing once SRCU period ends */
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index b2826dd1e68c..6e9397c16124 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -279,6 +279,12 @@ static inline struct inode *fsnotify_obj_inode(struct fsnotify_obj *obj)
return container_of(obj, struct inode, i_fsnotify);
}
+static inline struct inode *fsnotify_connector_inode(
+ struct fsnotify_mark_connector *conn)
+{
+ return conn->inode;
+}
+
/*
* A mark is simply an object attached to an in core inode which allows an
* fsnotify listener to indicate they are either no longer interested in events
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index eadee98f5a12..529e4757f4e1 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -183,7 +183,7 @@ static unsigned long chunk_to_key(struct audit_chunk *chunk)
*/
if (WARN_ON_ONCE(!chunk->mark.connector))
return 0;
- return (unsigned long)chunk->mark.connector->inode;
+ return (unsigned long)fsnotify_connector_inode(chunk->mark.connector);
}
static inline struct list_head *chunk_hash(unsigned long key)
@@ -258,7 +258,7 @@ static void untag_chunk(struct node *p)
spin_lock(&entry->lock);
/*
* mark_mutex protects mark from getting detached and thus also from
- * mark->connector->inode getting NULL.
+ * mark->connector->obj getting NULL.
*/
if (chunk->dead || !(entry->flags & FSNOTIFY_MARK_FLAG_ATTACHED)) {
spin_unlock(&entry->lock);
@@ -288,8 +288,9 @@ static void untag_chunk(struct node *p)
if (!new)
goto Fallback;
- if (fsnotify_add_inode_mark_locked(&new->mark, entry->connector->inode,
- 1)) {
+ if (fsnotify_add_inode_mark_locked(&new->mark,
+ fsnotify_connector_inode(entry->connector),
+ 1)) {
fsnotify_put_mark(&new->mark);
goto Fallback;
}
@@ -434,7 +435,7 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree)
}
if (fsnotify_add_inode_mark_locked(chunk_entry,
- old_entry->connector->inode, 1)) {
+ fsnotify_connector_inode(old_entry->connector), 1)) {
spin_unlock(&old_entry->lock);
mutex_unlock(&old_entry->group->mark_mutex);
fsnotify_put_mark(chunk_entry);
--
2.7.4
next prev parent reply other threads:[~2018-04-20 23:09 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-20 23:10 [PATCH v3 00/13] Preparing for fanotify super block marks Amir Goldstein
2018-04-20 23:10 ` [PATCH v3 01/13] fsnotify: use type id to identify connector object type Amir Goldstein
2018-04-20 23:10 ` [PATCH v3 02/13] fsnotify: remove redundant arguments to handle_event() Amir Goldstein
2018-04-20 23:10 ` [PATCH v3 03/13] fsnotify: introduce marks iteration helpers Amir Goldstein
2018-04-20 23:10 ` [PATCH v3 04/13] fsnotify: generalize iteration of marks by object type Amir Goldstein
2018-04-20 23:10 ` [PATCH v3 05/13] fsnotify: generalize send_to_group() Amir Goldstein
2018-04-20 23:10 ` [PATCH v3 06/13] fanotify: generalize fanotify_should_send_event() Amir Goldstein
2018-05-18 10:47 ` Jan Kara
2018-04-20 23:10 ` [PATCH v3 07/13] fsnotify: add fsnotify_add_inode_mark() wrappers Amir Goldstein
2018-04-20 23:10 ` [PATCH v3 08/13] fsnotify: introduce prototype struct fsnotify_obj Amir Goldstein
2018-05-18 12:02 ` Jan Kara
2018-04-20 23:10 ` [PATCH v3 09/13] fsnotify: pass fsnotify_obj instead of **connp argument Amir Goldstein
2018-04-20 23:10 ` [PATCH v3 10/13] fsnotify: pass object and object type to fsnotify_add_mark() Amir Goldstein
2018-04-20 23:10 ` Amir Goldstein [this message]
2018-05-18 12:48 ` [PATCH v3 11/13] fsnotify: add fsnotify_connector_inode() wrapper Jan Kara
2018-04-20 23:11 ` [PATCH v3 12/13] fsnotify: let connector point to abstract fsnotify_obj Amir Goldstein
2018-04-20 23:11 ` [PATCH v3 13/13] fanotify: factor out helpers to add/remove mark Amir Goldstein
2018-05-18 13:09 ` [PATCH v3 00/13] Preparing for fanotify super block marks Jan Kara
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