summaryrefslogtreecommitdiff
path: root/fs/notify
diff options
context:
space:
mode:
Diffstat (limited to 'fs/notify')
-rw-r--r--fs/notify/Kconfig1
-rw-r--r--fs/notify/dnotify/Kconfig1
-rw-r--r--fs/notify/dnotify/Makefile1
-rw-r--r--fs/notify/dnotify/dnotify.c11
-rw-r--r--fs/notify/fanotify/Kconfig1
-rw-r--r--fs/notify/fanotify/Makefile1
-rw-r--r--fs/notify/fanotify/fanotify.c4
-rw-r--r--fs/notify/fsnotify.c15
-rw-r--r--fs/notify/group.c15
-rw-r--r--fs/notify/inotify/Kconfig1
-rw-r--r--fs/notify/inotify/Makefile1
-rw-r--r--fs/notify/inotify/inotify_fsnotify.c11
-rw-r--r--fs/notify/inotify/inotify_user.c11
-rw-r--r--fs/notify/mark.c29
-rw-r--r--fs/notify/notification.c15
15 files changed, 29 insertions, 89 deletions
diff --git a/fs/notify/Kconfig b/fs/notify/Kconfig
index 2a24249b30af..c020d26ba223 100644
--- a/fs/notify/Kconfig
+++ b/fs/notify/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
config FSNOTIFY
def_bool n
select SRCU
diff --git a/fs/notify/dnotify/Kconfig b/fs/notify/dnotify/Kconfig
index f9c1ca139d8f..3df7def17eea 100644
--- a/fs/notify/dnotify/Kconfig
+++ b/fs/notify/dnotify/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
config DNOTIFY
bool "Dnotify support"
select FSNOTIFY
diff --git a/fs/notify/dnotify/Makefile b/fs/notify/dnotify/Makefile
index f145251dcadb..121b4dd6b1fe 100644
--- a/fs/notify/dnotify/Makefile
+++ b/fs/notify/dnotify/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_DNOTIFY) += dnotify.o
diff --git a/fs/notify/dnotify/dnotify.c b/fs/notify/dnotify/dnotify.c
index 250369d6901d..c03758c91481 100644
--- a/fs/notify/dnotify/dnotify.c
+++ b/fs/notify/dnotify/dnotify.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Directory notifications for Linux.
*
@@ -5,16 +6,6 @@
*
* Copyright (C) 2009 Eric Paris <Red Hat Inc>
* dnotify was largly rewritten to use the new fsnotify infrastructure
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
*/
#include <linux/fs.h>
#include <linux/module.h>
diff --git a/fs/notify/fanotify/Kconfig b/fs/notify/fanotify/Kconfig
index 521dc91d2cb5..8b9103f126ad 100644
--- a/fs/notify/fanotify/Kconfig
+++ b/fs/notify/fanotify/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
config FANOTIFY
bool "Filesystem wide access notification"
select FSNOTIFY
diff --git a/fs/notify/fanotify/Makefile b/fs/notify/fanotify/Makefile
index 0999213e7e6e..25ef222915e5 100644
--- a/fs/notify/fanotify/Makefile
+++ b/fs/notify/fanotify/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_FANOTIFY) += fanotify.o fanotify_user.o
diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index e6fde1a5c072..b428c295d13f 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -355,6 +355,10 @@ static __kernel_fsid_t fanotify_get_fsid(struct fsnotify_iter_info *iter_info)
/* Mark is just getting destroyed or created? */
if (!conn)
continue;
+ if (!(conn->flags & FSNOTIFY_CONN_FLAG_HAS_FSID))
+ continue;
+ /* Pairs with smp_wmb() in fsnotify_add_mark_list() */
+ smp_rmb();
fsid = conn->fsid;
if (WARN_ON_ONCE(!fsid.val[0] && !fsid.val[1]))
continue;
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
index 8c7cbac7183c..4eb2ebfac468 100644
--- a/fs/notify/fsnotify.c
+++ b/fs/notify/fsnotify.c
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2008 Red Hat, Inc., Eric Paris <eparis@redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/dcache.h>
diff --git a/fs/notify/group.c b/fs/notify/group.c
index c03b83662876..0391190305cc 100644
--- a/fs/notify/group.c
+++ b/fs/notify/group.c
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2008 Red Hat, Inc., Eric Paris <eparis@redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/list.h>
diff --git a/fs/notify/inotify/Kconfig b/fs/notify/inotify/Kconfig
index 0161c74e76e2..6736e47d94d8 100644
--- a/fs/notify/inotify/Kconfig
+++ b/fs/notify/inotify/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
config INOTIFY_USER
bool "Inotify support for userspace"
select FSNOTIFY
diff --git a/fs/notify/inotify/Makefile b/fs/notify/inotify/Makefile
index a380dabe09de..812237eecf3a 100644
--- a/fs/notify/inotify/Makefile
+++ b/fs/notify/inotify/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_INOTIFY_USER) += inotify_fsnotify.o inotify_user.o
diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index 7e8b131029f8..2fda08b2b885 100644
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* fs/inotify_user.c - inotify support for userspace
*
@@ -10,16 +11,6 @@
*
* Copyright (C) 2009 Eric Paris <Red Hat Inc>
* inotify was largely rewriten to make use of the fsnotify infrastructure
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
*/
#include <linux/dcache.h> /* d_unlinked */
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 7b53598c8804..cce8de32779f 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* fs/inotify_user.c - inotify support for userspace
*
@@ -10,16 +11,6 @@
*
* Copyright (C) 2009 Eric Paris <Red Hat Inc>
* inotify was largely rewriten to make use of the fsnotify infrastructure
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
*/
#include <linux/file.h>
diff --git a/fs/notify/mark.c b/fs/notify/mark.c
index b251105f646f..99ddd126f6f0 100644
--- a/fs/notify/mark.c
+++ b/fs/notify/mark.c
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2008 Red Hat, Inc., Eric Paris <eparis@redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
@@ -495,10 +482,13 @@ static int fsnotify_attach_connector_to_object(fsnotify_connp_t *connp,
conn->type = type;
conn->obj = connp;
/* Cache fsid of filesystem containing the object */
- if (fsid)
+ if (fsid) {
conn->fsid = *fsid;
- else
+ conn->flags = FSNOTIFY_CONN_FLAG_HAS_FSID;
+ } else {
conn->fsid.val[0] = conn->fsid.val[1] = 0;
+ conn->flags = 0;
+ }
if (conn->type == FSNOTIFY_OBJ_TYPE_INODE)
inode = igrab(fsnotify_conn_inode(conn));
/*
@@ -573,7 +563,12 @@ restart:
if (err)
return err;
goto restart;
- } else if (fsid && (conn->fsid.val[0] || conn->fsid.val[1]) &&
+ } else if (fsid && !(conn->flags & FSNOTIFY_CONN_FLAG_HAS_FSID)) {
+ conn->fsid = *fsid;
+ /* Pairs with smp_rmb() in fanotify_get_fsid() */
+ smp_wmb();
+ conn->flags |= FSNOTIFY_CONN_FLAG_HAS_FSID;
+ } else if (fsid && (conn->flags & FSNOTIFY_CONN_FLAG_HAS_FSID) &&
(fsid->val[0] != conn->fsid.val[0] ||
fsid->val[1] != conn->fsid.val[1])) {
/*
diff --git a/fs/notify/notification.c b/fs/notify/notification.c
index 5f3a54d444b5..75d79d6d3ef0 100644
--- a/fs/notify/notification.c
+++ b/fs/notify/notification.c
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2008 Red Hat, Inc., Eric Paris <eparis@redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*