Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify
Merge commit. Changes below are compared with the first parent: f02a38d8.
Changes
12 files changed · +219 −64
| File | Status | Add | Del | Content |
|---|---|---|---|---|
| fs/notify/Kconfig | modified | +1 | −1 | View file |
| fs/notify/fanotify/fanotify.c | modified | +21 | −6 | View file |
| fs/notify/fanotify/fanotify_user.c | modified | +90 | −8 | View file |
| fs/notify/fsnotify.c | modified | +21 | −14 | View file |
| fs/notify/inode_mark.c | modified | +7 | −2 | View file |
| fs/notify/inotify/inotify_user.c | modified | +1 | −1 | View file |
| fs/notify/vfsmount_mark.c | modified | +5 | −1 | View file |
| include/linux/Kbuild | modified | +1 | −0 | View file |
| include/linux/fanotify.h | modified | +27 | −9 | View file |
| include/linux/fsnotify.h | modified | +22 | −16 | View file |
| include/linux/fsnotify_backend.h | modified | +20 | −6 | View file |
| include/linux/sched.h | modified | +3 | −0 | View file |
Only the first 600 diff lines are shown. Download the complete patch.
fs/notify/Kconfig
View filediff --git a/fs/notify/Kconfig b/fs/notify/Kconfig
index b388443..22c629e 100644
--- a/fs/notify/Kconfig
+++ b/fs/notify/Kconfig
@@ -3,4 +3,4 @@ config FSNOTIFY
source "fs/notify/dnotify/Kconfig"
source "fs/notify/inotify/Kconfig"
-#source "fs/notify/fanotify/Kconfig"
+source "fs/notify/fanotify/Kconfig"
fs/notify/fanotify/fanotify.c
View filediff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index 85366c7..b04f88e 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -131,6 +131,7 @@ static int fanotify_handle_event(struct fsnotify_group *group,
BUILD_BUG_ON(FAN_Q_OVERFLOW != FS_Q_OVERFLOW);
BUILD_BUG_ON(FAN_OPEN_PERM != FS_OPEN_PERM);
BUILD_BUG_ON(FAN_ACCESS_PERM != FS_ACCESS_PERM);
+ BUILD_BUG_ON(FAN_ONDIR != FS_ISDIR);
pr_debug("%s: group=%p event=%p\n", __func__, group, event);
@@ -160,20 +161,21 @@ static bool fanotify_should_send_event(struct fsnotify_group *group,
__u32 event_mask, void *data, int data_type)
{
__u32 marks_mask, marks_ignored_mask;
+ struct path *path = data;
pr_debug("%s: group=%p to_tell=%p inode_mark=%p vfsmnt_mark=%p "
"mask=%x data=%p data_type=%d\n", __func__, group, to_tell,
inode_mark, vfsmnt_mark, event_mask, data, data_type);
- /* sorry, fanotify only gives a damn about files and dirs */
- if (!S_ISREG(to_tell->i_mode) &&
- !S_ISDIR(to_tell->i_mode))
- return false;
-
/* if we don't have enough info to send an event to userspace say no */
if (data_type != FSNOTIFY_EVENT_PATH)
return false;
+ /* sorry, fanotify only gives a damn about files and dirs */
+ if (!S_ISREG(path->dentry->d_inode->i_mode) &&
+ !S_ISDIR(path->dentry->d_inode->i_mode))
+ return false;
+
if (inode_mark && vfsmnt_mark) {
marks_mask = (vfsmnt_mark->mask | inode_mark->mask);
marks_ignored_mask = (vfsmnt_mark->ignored_mask | inode_mark->ignored_mask);
@@ -194,16 +196,29 @@ static bool fanotify_should_send_event(struct fsnotify_group *group,
BUG();
}
+ if (S_ISDIR(path->dentry->d_inode->i_mode) &&
+ (marks_ignored_mask & FS_ISDIR))
+ return false;
+
if (event_mask & marks_mask & ~marks_ignored_mask)
return true;
return false;
}
+static void fanotify_free_group_priv(struct fsnotify_group *group)
+{
+ struct user_struct *user;
+
+ user = group->fanotify_data.user;
+ atomic_dec(&user->fanotify_listeners);
+ free_uid(user);
+}
+
const struct fsnotify_ops fanotify_fsnotify_ops = {
.handle_event = fanotify_handle_event,
.should_send_event = fanotify_should_send_event,
- .free_group_priv = NULL,
+ .free_group_priv = fanotify_free_group_priv,
.free_event_priv = NULL,
.freeing_mark = NULL,
};
fs/notify/fanotify/fanotify_user.c
View filediff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index bbcb98e..0632248 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -16,6 +16,10 @@
#include <asm/ioctls.h>
+#define FANOTIFY_DEFAULT_MAX_EVENTS 16384
+#define FANOTIFY_DEFAULT_MAX_MARKS 8192
+#define FANOTIFY_DEFAULT_MAX_LISTENERS 128
+
extern const struct fsnotify_ops fanotify_fsnotify_ops;
static struct kmem_cache *fanotify_mark_cache __read_mostly;
@@ -326,7 +330,7 @@ static ssize_t fanotify_read(struct file *file, char __user *buf,
ret = -EAGAIN;
if (file->f_flags & O_NONBLOCK)
break;
- ret = -EINTR;
+ ret = -ERESTARTSYS;
if (signal_pending(current))
break;
@@ -372,11 +376,10 @@ static ssize_t fanotify_write(struct file *file, const char __user *buf, size_t
static int fanotify_release(struct inode *ignored, struct file *file)
{
struct fsnotify_group *group = file->private_data;
- struct fanotify_response_event *re, *lre;
-
- pr_debug("%s: file=%p group=%p\n", __func__, file, group);
#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
+ struct fanotify_response_event *re, *lre;
+
mutex_lock(&group->fanotify_data.access_mutex);
group->fanotify_data.bypass_perm = true;
@@ -554,18 +557,24 @@ static __u32 fanotify_mark_add_to_mask(struct fsnotify_mark *fsn_mark,
__u32 mask,
unsigned int flags)
{
- __u32 oldmask;
+ __u32 oldmask = -1;
spin_lock(&fsn_mark->lock);
if (!(flags & FAN_MARK_IGNORED_MASK)) {
oldmask = fsn_mark->mask;
fsnotify_set_mark_mask_locked(fsn_mark, (oldmask | mask));
} else {
- oldmask = fsn_mark->ignored_mask;
- fsnotify_set_mark_ignored_mask_locked(fsn_mark, (oldmask | mask));
+ __u32 tmask = fsn_mark->ignored_mask | mask;
+ fsnotify_set_mark_ignored_mask_locked(fsn_mark, tmask);
if (flags & FAN_MARK_IGNORED_SURV_MODIFY)
fsn_mark->flags |= FSNOTIFY_MARK_FLAG_IGNORED_SURV_MODIFY;
}
+
+ if (!(flags & FAN_MARK_ONDIR)) {
+ __u32 tmask = fsn_mark->ignored_mask | FAN_ONDIR;
+ fsnotify_set_mark_ignored_mask_locked(fsn_mark, tmask);
+ }
+
spin_unlock(&fsn_mark->lock);
return mask & ~oldmask;
@@ -582,6 +591,9 @@ static int fanotify_add_vfsmount_mark(struct fsnotify_group *group,
if (!fsn_mark) {
int ret;
+ if (atomic_read(&group->num_marks) > group->fanotify_data.max_marks)
+ return -ENOSPC;
+
fsn_mark = kmem_cache_alloc(fanotify_mark_cache, GFP_KERNEL);
if (!fsn_mark)
return -ENOMEM;
@@ -610,10 +622,23 @@ static int fanotify_add_inode_mark(struct fsnotify_group *group,
pr_debug("%s: group=%p inode=%p\n", __func__, group, inode);
+ /*
+ * If some other task has this inode open for write we should not add
+ * an ignored mark, unless that ignored mark is supposed to survive
+ * modification changes anyway.
+ */
+ if ((flags & FAN_MARK_IGNORED_MASK) &&
+ !(flags & FAN_MARK_IGNORED_SURV_MODIFY) &&
+ (atomic_read(&inode->i_writecount) > 0))
+ return 0;
+
fsn_mark = fsnotify_find_inode_mark(group, inode);
if (!fsn_mark) {
int ret;
+ if (atomic_read(&group->num_marks) > group->fanotify_data.max_marks)
+ return -ENOSPC;
+
fsn_mark = kmem_cache_alloc(fanotify_mark_cache, GFP_KERNEL);
if (!fsn_mark)
return -ENOMEM;
@@ -637,6 +662,7 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
{
struct fsnotify_group *group;
int f_flags, fd;
+ struct user_struct *user;
pr_debug("%s: flags=%d event_f_flags=%d\n",
__func__, flags, event_f_flags);
@@ -647,6 +673,12 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
if (flags & ~FAN_ALL_INIT_FLAGS)
return -EINVAL;
+ user = get_current_user();
+ if (atomic_read(&user->fanotify_listeners) > FANOTIFY_DEFAULT_MAX_LISTENERS) {
+ free_uid(user);
+ return -EMFILE;
+ }
+
f_flags = O_RDWR | FMODE_NONOTIFY;
if (flags & FAN_CLOEXEC)
f_flags |= O_CLOEXEC;
@@ -658,12 +690,47 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
if (IS_ERR(group))
return PTR_ERR(group);
+ group->fanotify_data.user = user;
+ atomic_inc(&user->fanotify_listeners);
+
group->fanotify_data.f_flags = event_f_flags;
#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
mutex_init(&group->fanotify_data.access_mutex);
init_waitqueue_head(&group->fanotify_data.access_waitq);
INIT_LIST_HEAD(&group->fanotify_data.access_list);
#endif
+ switch (flags & FAN_ALL_CLASS_BITS) {
+ case FAN_CLASS_NOTIF:
+ group->priority = FS_PRIO_0;
+ break;
+ case FAN_CLASS_CONTENT:
+ group->priority = FS_PRIO_1;
+ break;
+ case FAN_CLASS_PRE_CONTENT:
+ group->priority = FS_PRIO_2;
+ break;
+ default:
+ fd = -EINVAL;
+ goto out_put_group;
+ }
+
+ if (flags & FAN_UNLIMITED_QUEUE) {
+ fd = -EPERM;
+ if (!capable(CAP_SYS_ADMIN))
+ goto out_put_group;
+ group->max_events = UINT_MAX;
+ } else {
+ group->max_events = FANOTIFY_DEFAULT_MAX_EVENTS;
+ }
+
+ if (flags & FAN_UNLIMITED_MARKS) {
+ fd = -EPERM;
+ if (!capable(CAP_SYS_ADMIN))
+ goto out_put_group;
+ group->fanotify_data.max_marks = UINT_MAX;
+ } else {
+ group->fanotify_data.max_marks = FANOTIFY_DEFAULT_MAX_MARKS;
+ }
fd = anon_inode_getfd("[fanotify]", &fanotify_fops, group, f_flags);
if (fd < 0)
@@ -704,6 +771,12 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags,
default:
return -EINVAL;
}
+
+ if (mask & FAN_ONDIR) {
+ flags |= FAN_MARK_ONDIR;
+ mask &= ~FAN_ONDIR;
+ }
+
#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
if (mask & ~(FAN_ALL_EVENTS | FAN_ALL_PERM_EVENTS | FAN_EVENT_ON_CHILD))
#else
@@ -719,6 +792,16 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags,
ret = -EINVAL;
if (unlikely(filp->f_op != &fanotify_fops))
goto fput_and_out;
+ group = filp->private_data;
+
+ /*
+ * group->priority == FS_PRIO_0 == FAN_CLASS_NOTIF. These are not
+ * allowed to set permissions events.
+ */
+ ret = -EINVAL;
+ if (mask & FAN_ALL_PERM_EVENTS &&
+ group->priority == FS_PRIO_0)
+ goto fput_and_out;
ret = fanotify_find_path(dfd, pathname, &path, flags);
if (ret)
@@ -729,7 +812,6 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags,
inode = path.dentry->d_inode;
else
mnt = path.mnt;
- group = filp->private_data;
/* create/update an inode mark */
switch (flags & (FAN_MARK_ADD | FAN_MARK_REMOVE | FAN_MARK_FLUSH)) {
fs/notify/fsnotify.c
View filediff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
index 4498a20..20dc218 100644
--- a/fs/notify/fsnotify.c
+++ b/fs/notify/fsnotify.c
@@ -84,16 +84,17 @@ void __fsnotify_update_child_dentry_flags(struct inode *inode)
}
/* Notify this dentry's parent about a child's events. */
-void __fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask)
+int __fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask)
{
struct dentry *parent;
struct inode *p_inode;
+ int ret = 0;
if (!dentry)
dentry = path->dentry;
if (!(dentry->d_flags & DCACHE_FSNOTIFY_PARENT_WATCHED))
- return;
+ return 0;
parent = dget_parent(dentry);
p_inode = parent->d_inode;
@@ -106,14 +107,16 @@ void __fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask)
mask |= FS_EVENT_ON_CHILD;
if (path)
- fsnotify(p_inode, mask, path, FSNOTIFY_EVENT_PATH,
- dentry->d_name.name, 0);
+ ret = fsnotify(p_inode, mask, path, FSNOTIFY_EVENT_PATH,
+ dentry->d_name.name, 0);
else
- fsnotify(p_inode, mask, dentry->d_inode, FSNOTIFY_EVENT_INODE,
- dentry->d_name.name, 0);
+ ret = fsnotify(p_inode, mask, dentry->d_inode, FSNOTIFY_EVENT_INODE,
+ dentry->d_name.name, 0);
}
dput(parent);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(__fsnotify_parent);
@@ -252,20 +255,23 @@ int fsnotify(struct inode *to_tell, __u32 mask, void *data, int data_is,
if (inode_group > vfsmount_group) {
/* handle inode */
- send_to_group(to_tell, NULL, inode_mark, NULL, mask, data,
- data_is, cookie, file_name, &event);
+ ret = send_to_group(to_tell, NULL, inode_mark, NULL, mask, data,
+ data_is, cookie, file_name, &event);
/* we didn't use the vfsmount_mark */
vfsmount_group = NULL;
} else if (vfsmount_group > inode_group) {
- send_to_group(to_tell, mnt, NULL, vfsmount_mark, mask, data,
- data_is, cookie, file_name, &event);
+ ret = send_to_group(to_tell, mnt, NULL, vfsmount_mark, mask, data,
+ data_is, cookie, file_name, &event);
inode_group = NULL;
} else {
- send_to_group(to_tell, mnt, inode_mark, vfsmount_mark,
- mask, data, data_is, cookie, file_name,
- &event);
+ ret = send_to_group(to_tell, mnt, inode_mark, vfsmount_mark,
+ mask, data, data_is, cookie, file_name,
+ &event);
}
+ if (ret && (mask & ALL_FSNOTIFY_PERM_EVENTS))
+ goto out;
+
if (inode_group)
inode_node = srcu_dereference(inode_node->next,
&fsnotify_mark_srcu);
@@ -273,7 +279,8 @@ int fsnotify(struct inode *to_tell, __u32 mask, void *data, int data_is,
vfsmount_node = srcu_dereference(vfsmount_node->next,
&fsnotify_mark_srcu);
}
-
+ ret = 0;
+out:
srcu_read_unlock(&fsnotify_mark_srcu, idx);
/*
* fsnotify_create_event() took a reference so the event can't be cleaned
fs/notify/inode_mark.c
View filediff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c
index 21ed106..4c29fcf 100644
--- a/fs/notify/inode_mark.c
+++ b/fs/notify/inode_mark.c
@@ -177,7 +177,8 @@ void fsnotify_set_inode_mark_mask_locked(struct fsnotify_mark *mark,
* Attach an initialized mark to a given inode.
* These marks may be used for the fsnotify backend to determine which
* event types should be delivered to which group and for which inodes. These
- * marks are ordered according to the group's location in memory.
+ * marks are ordered according to priority, highest number first, and then by
+ * the group's location in memory.
*/
int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
struct fsnotify_group *group, struct inode *inode,
@@ -211,7 +212,11 @@ int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
goto out;
}
- if (mark->group < lmark->group)
+ if (mark->group->priority < lmark->group->priority)
+ continue;
+
+ if ((mark->group->priority == lmark->group->priority) &&
+ (mark->group < lmark->group))
continue;
hlist_add_before_rcu(&mark->i.i_list, &lmark->i.i_list);
fs/notify/inotify/inotify_user.c
View filediff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 24edc11..444c305 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -862,7 +862,7 @@ static int __init inotify_user_setup(void)
BUILD_BUG_ON(IN_Q_OVERFLOW != FS_Q_OVERFLOW);
BUILD_BUG_ON(IN_IGNORED != FS_IN_IGNORED);
BUILD_BUG_ON(IN_EXCL_UNLINK != FS_EXCL_UNLINK);
- BUILD_BUG_ON(IN_ISDIR != FS_IN_ISDIR);
+ BUILD_BUG_ON(IN_ISDIR != FS_ISDIR);
BUILD_BUG_ON(IN_ONESHOT != FS_IN_ONESHOT);
BUG_ON(hweight32(ALL_INOTIFY_BITS) != 21);
fs/notify/vfsmount_mark.c
View filediff --git a/fs/notify/vfsmount_mark.c b/fs/notify/vfsmount_mark.c
index 56772b5..85eebff 100644
--- a/fs/notify/vfsmount_mark.c
+++ b/fs/notify/vfsmount_mark.c
@@ -169,7 +169,11 @@ int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
goto out;
}
- if (mark->group < lmark->group)
+ if (mark->group->priority < lmark->group->priority)
+ continue;
+
+ if ((mark->group->priority == lmark->group->priority) &&
+ (mark->group < lmark->group))
continue;
hlist_add_before_rcu(&mark->m.m_list, &lmark->m.m_list);
include/linux/Kbuild
View filediff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 90e3ed3..97319a8 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -118,6 +118,7 @@ header-y += eventpoll.h
header-y += ext2_fs.h
header-y += fadvise.h
header-y += falloc.h
+header-y += fanotify.h
header-y += fb.h
header-y += fcntl.h
header-y += fd.h
include/linux/fanotify.h
View filediff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index 63531a6..0f01214 100644
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -6,18 +6,19 @@
/* the following events that user-space can register for */
#define FAN_ACCESS 0x00000001 /* File was accessed */
#define FAN_MODIFY 0x00000002 /* File was modified */
-#define FAN_CLOSE_WRITE 0x00000008 /* Unwrittable file closed */
-#define FAN_CLOSE_NOWRITE 0x00000010 /* Writtable file closed */
+#define FAN_CLOSE_WRITE 0x00000008 /* Writtable file closed */
+#define FAN_CLOSE_NOWRITE 0x00000010 /* Unwrittable file closed */
#define FAN_OPEN 0x00000020 /* File was opened */
-#define FAN_EVENT_ON_CHILD 0x08000000 /* interested in child events */
-
-/* FIXME currently Q's have no limit.... */
#define FAN_Q_OVERFLOW 0x00004000 /* Event queued overflowed */
#define FAN_OPEN_PERM 0x00010000 /* File open in perm check */
#define FAN_ACCESS_PERM 0x00020000 /* File accessed in perm check */
+#define FAN_ONDIR 0x40000000 /* event occurred against dir */
+
+#define FAN_EVENT_ON_CHILD 0x08000000 /* interested in child events */
+
/* helper events */
#define FAN_CLOSE (FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE) /* close */
@@ -25,7 +26,19 @@
#define FAN_CLOEXEC 0x00000001
#define FAN_NONBLOCK 0x00000002
-#define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK)
+/* These are NOT bitwise flags. Both bits are used togther. */
+#define FAN_CLASS_NOTIF 0x00000000
+#define FAN_CLASS_CONTENT 0x00000004
+#define FAN_CLASS_PRE_CONTENT 0x00000008
+#define FAN_ALL_CLASS_BITS (FAN_CLASS_NOTIF | FAN_CLASS_CONTENT | \
+ FAN_CLASS_PRE_CONTENT)
+
+#define FAN_UNLIMITED_QUEUE 0x00000010
+#define FAN_UNLIMITED_MARKS 0x00000020
+
+#define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK | \
+ FAN_ALL_CLASS_BITS | FAN_UNLIMITED_QUEUE |\
+ FAN_UNLIMITED_MARKS)
/* flags used for fanotify_modify_mark() */
#define FAN_MARK_ADD 0x00000001
@@ -36,6 +49,10 @@
#define FAN_MARK_IGNORED_MASK 0x00000020
#define FAN_MARK_IGNORED_SURV_MODIFY 0x00000040
#define FAN_MARK_FLUSH 0x00000080
+#ifdef __KERNEL__
+/* not valid from userspace, only kernel internal */
+#define FAN_MARK_ONDIR 0x00000100
+#endif
#define FAN_ALL_MARK_FLAGS (FAN_MARK_ADD |\
FAN_MARK_REMOVE |\
@@ -43,7 +60,8 @@
FAN_MARK_ONLYDIR |\
FAN_MARK_MOUNT |\
FAN_MARK_IGNORED_MASK |\
- FAN_MARK_IGNORED_SURV_MODIFY)
+ FAN_MARK_IGNORED_SURV_MODIFY |\
+ FAN_MARK_FLUSH)
/*
* All of the events - we build the list by hand so that we can add flags in
@@ -70,10 +88,10 @@
struct fanotify_event_metadata {
__u32 event_len;
__u32 vers;
- __u64 mask;
+ __aligned_u64 mask;
__s32 fd;
__s32 pid;
-} __attribute__ ((packed));
+};
struct fanotify_response {
__s32 fd;
include/linux/fsnotify.h
View filediff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index 59d0df4..5c185fa 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -26,12 +26,12 @@ static inline void fsnotify_d_instantiate(struct dentry *dentry,
}
/* Notify this dentry's parent about a child's events. */
-static inline void fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask)
+static inline int fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask)
{
if (!dentry)
dentry = path->dentry;
- __fsnotify_parent(path, dentry, mask);
+ return __fsnotify_parent(path, dentry, mask);
}
/* simple call site for access decisions */
@@ -40,6 +40,7 @@ static inline int fsnotify_perm(struct file *file, int mask)
struct path *path = &file->f_path;
struct inode *inode = path->dentry->d_inode;
__u32 fsnotify_mask = 0;
+ int ret;
if (file->f_mode & FMODE_NONOTIFY)
return 0;
@@ -52,6 +53,10 @@ static inline int fsnotify_perm(struct file *file, int mask)
else
BUG();
+ ret = fsnotify_parent(path, NULL, fsnotify_mask);
+ if (ret)
+ return ret;
+
return fsnotify(inode, fsnotify_mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);
}
@@ -93,8 +98,8 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
old_dir_mask |= FS_DN_RENAME;
if (isdir) {
- old_dir_mask |= FS_IN_ISDIR;
- new_dir_mask |= FS_IN_ISDIR;
+ old_dir_mask |= FS_ISDIR;
+ new_dir_mask |= FS_ISDIR;
}
fsnotify(old_dir, old_dir_mask, old_dir, FSNOTIFY_EVENT_INODE, old_name, fs_cookie);
@@ -132,7 +137,7 @@ static inline void fsnotify_nameremove(struct dentry *dentry, int isdir)
__u32 mask = FS_DELETE;
if (isdir)
- mask |= FS_IN_ISDIR;
+ mask |= FS_ISDIR;
fsnotify_parent(NULL, dentry, mask);
}
@@ -174,7 +179,7 @@ static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct
*/
static inline void fsnotify_mkdir(struct inode *inode, struct dentry *dentry)
{
- __u32 mask = (FS_CREATE | FS_IN_ISDIR);
+ __u32 mask = (FS_CREATE | FS_ISDIR);
struct inode *d_inode = dentry->d_inode;
audit_inode_child(dentry, inode);
@@ -192,7 +197,7 @@ static inline void fsnotify_access(struct file *file)
__u32 mask = FS_ACCESS;
if (S_ISDIR(inode->i_mode))
- mask |= FS_IN_ISDIR;
+ mask |= FS_ISDIR;
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include/linux/fsnotify_backend.h
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include/linux/sched.h
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