From e43e9c339a78a0978f4ce473f645cedc05e6a57c Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 26 Apr 2019 13:51:03 -0400
Subject: [PATCH] fsnotify: switch send_to_group() and ->handle_event to const
struct qstr *
note that conditions surrounding accesses to dname in audit_watch_handle_event()
and audit_mark_handle_event() guarantee that dname won't have been NULL.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/notify/dnotify/dnotify.c | 2 +-
fs/notify/fanotify/fanotify.c | 2 +-
fs/notify/fsnotify.c | 4 ++--
fs/notify/inotify/inotify.h | 2 +-
fs/notify/inotify/inotify_fsnotify.c | 6 +++---
include/linux/fsnotify_backend.h | 2 +-
kernel/audit_fsnotify.c | 4 ++--
kernel/audit_tree.c | 2 +-
kernel/audit_watch.c | 6 +++---
9 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/fs/notify/dnotify/dnotify.c b/fs/notify/dnotify/dnotify.c
index 58d77dc696eb5..250369d6901de 100644
--- a/fs/notify/dnotify/dnotify.c
+++ b/fs/notify/dnotify/dnotify.c
@@ -81,7 +81,7 @@ static void dnotify_recalc_inode_mask(struct fsnotify_mark *fsn_mark)
static int dnotify_handle_event(struct fsnotify_group *group,
struct inode *inode,
u32 mask, const void *data, int data_type,
- const unsigned char *file_name, u32 cookie,
+ const struct qstr *file_name, u32 cookie,
struct fsnotify_iter_info *iter_info)
{
struct fsnotify_mark *inode_mark = fsnotify_iter_inode_mark(iter_info);
diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index 6b9c275489971..a34d7e003d7da 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -361,7 +361,7 @@ static __kernel_fsid_t fanotify_get_fsid(struct fsnotify_iter_info *iter_info)
static int fanotify_handle_event(struct fsnotify_group *group,
struct inode *inode,
u32 mask, const void *data, int data_type,
- const unsigned char *file_name, u32 cookie,
+ const struct qstr *file_name, u32 cookie,
struct fsnotify_iter_info *iter_info)
{
int ret = 0;
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
index 9cbb5ae11d2f8..5433e37fb0c52 100644
--- a/fs/notify/fsnotify.c
+++ b/fs/notify/fsnotify.c
@@ -195,7 +195,7 @@ EXPORT_SYMBOL_GPL(__fsnotify_parent);
static int send_to_group(struct inode *to_tell,
__u32 mask, const void *data,
int data_is, u32 cookie,
- const unsigned char *file_name,
+ const struct qstr *file_name,
struct fsnotify_iter_info *iter_info)
{
struct fsnotify_group *group = NULL;
@@ -379,7 +379,7 @@ int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
*/
while (fsnotify_iter_select_report_types(&iter_info)) {
ret = send_to_group(to_tell, mask, data, data_is, cookie,
- file_name->name, &iter_info);
+ file_name, &iter_info);
if (ret && (mask & ALL_FSNOTIFY_PERM_EVENTS))
goto out;
diff --git a/fs/notify/inotify/inotify.h b/fs/notify/inotify/inotify.h
index 74ae603051898..3f246f7b8a92b 100644
--- a/fs/notify/inotify/inotify.h
+++ b/fs/notify/inotify/inotify.h
@@ -27,7 +27,7 @@ extern void inotify_ignored_and_remove_idr(struct fsnotify_mark *fsn_mark,
extern int inotify_handle_event(struct fsnotify_group *group,
struct inode *inode,
u32 mask, const void *data, int data_type,
- const unsigned char *file_name, u32 cookie,
+ const struct qstr *file_name, u32 cookie,
struct fsnotify_iter_info *iter_info);
extern const struct fsnotify_ops inotify_fsnotify_ops;
diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index ff30abd6a49b1..e87f012cbff72 100644
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -67,7 +67,7 @@ static int inotify_merge(struct list_head *list,
int inotify_handle_event(struct fsnotify_group *group,
struct inode *inode,
u32 mask, const void *data, int data_type,
- const unsigned char *file_name, u32 cookie,
+ const struct qstr *file_name, u32 cookie,
struct fsnotify_iter_info *iter_info)
{
struct fsnotify_mark *inode_mark = fsnotify_iter_inode_mark(iter_info);
@@ -89,7 +89,7 @@ int inotify_handle_event(struct fsnotify_group *group,
return 0;
}
if (file_name) {
- len = strlen(file_name);
+ len = strlen(file_name->name);
alloc_len += len + 1;
}
@@ -129,7 +129,7 @@ int inotify_handle_event(struct fsnotify_group *group,
event->sync_cookie = cookie;
event->name_len = len;
if (len)
- strcpy(event->name, file_name);
+ strcpy(event->name, file_name->name);
ret = fsnotify_add_event(group, fsn_event, inotify_merge);
if (ret) {
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index 7eb7821766d54..c28f6ed1f59b8 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -117,7 +117,7 @@ struct fsnotify_ops {
int (*handle_event)(struct fsnotify_group *group,
struct inode *inode,
u32 mask, const void *data, int data_type,
- const unsigned char *file_name, u32 cookie,
+ const struct qstr *file_name, u32 cookie,
struct fsnotify_iter_info *iter_info);
void (*free_group_priv)(struct fsnotify_group *group);
void (*freeing_mark)(struct fsnotify_mark *mark, struct fsnotify_group *group);
diff --git a/kernel/audit_fsnotify.c b/kernel/audit_fsnotify.c
index 37ae95cfb7f45..fb241805569c8 100644
--- a/kernel/audit_fsnotify.c
+++ b/kernel/audit_fsnotify.c
@@ -164,7 +164,7 @@ static void audit_autoremove_mark_rule(struct audit_fsnotify_mark *audit_mark)
static int audit_mark_handle_event(struct fsnotify_group *group,
struct inode *to_tell,
u32 mask, const void *data, int data_type,
- const unsigned char *dname, u32 cookie,
+ const struct qstr *dname, u32 cookie,
struct fsnotify_iter_info *iter_info)
{
struct fsnotify_mark *inode_mark = fsnotify_iter_inode_mark(iter_info);
@@ -188,7 +188,7 @@ static int audit_mark_handle_event(struct fsnotify_group *group,
}
if (mask & (FS_CREATE|FS_MOVED_TO|FS_DELETE|FS_MOVED_FROM)) {
- if (audit_compare_dname_path(dname, audit_mark->path, AUDIT_NAME_FULL))
+ if (audit_compare_dname_path(dname->name, audit_mark->path, AUDIT_NAME_FULL))
return 0;
audit_update_mark(audit_mark, inode);
} else if (mask & (FS_DELETE_SELF|FS_UNMOUNT|FS_MOVE_SELF))
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index abfb112f26aa4..e49c912f862d0 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -1040,7 +1040,7 @@ static void evict_chunk(struct audit_chunk *chunk)
static int audit_tree_handle_event(struct fsnotify_group *group,
struct inode *to_tell,
u32 mask, const void *data, int data_type,
- const unsigned char *file_name, u32 cookie,
+ const struct qstr *file_name, u32 cookie,
struct fsnotify_iter_info *iter_info)
{
return 0;
diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
index e8d1adeb22230..3c12fd5b680e5 100644
--- a/kernel/audit_watch.c
+++ b/kernel/audit_watch.c
@@ -482,7 +482,7 @@ void audit_remove_watch_rule(struct audit_krule *krule)
static int audit_watch_handle_event(struct fsnotify_group *group,
struct inode *to_tell,
u32 mask, const void *data, int data_type,
- const unsigned char *dname, u32 cookie,
+ const struct qstr *dname, u32 cookie,
struct fsnotify_iter_info *iter_info)
{
struct fsnotify_mark *inode_mark = fsnotify_iter_inode_mark(iter_info);
@@ -507,9 +507,9 @@ static int audit_watch_handle_event(struct fsnotify_group *group,
}
if (mask & (FS_CREATE|FS_MOVED_TO) && inode)
- audit_update_watch(parent, dname, inode->i_sb->s_dev, inode->i_ino, 0);
+ audit_update_watch(parent, dname->name, inode->i_sb->s_dev, inode->i_ino, 0);
else if (mask & (FS_DELETE|FS_MOVED_FROM))
- audit_update_watch(parent, dname, AUDIT_DEV_UNSET, AUDIT_INO_UNSET, 1);
+ audit_update_watch(parent, dname->name, AUDIT_DEV_UNSET, AUDIT_INO_UNSET, 1);
else if (mask & (FS_DELETE_SELF|FS_UNMOUNT|FS_MOVE_SELF))
audit_remove_parent_watches(parent);
--
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