lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merge branch 'master' into for-next

Browse Source 
Conflicts:
	MAINTAINERS
	arch/arm/mach-omap2/pm24xx.c
	drivers/scsi/bfa/bfa_fcpim.c

Needed to update to apply fixes for which the old branch was too
outdated.
This commit is contained in:
Jiri Kosina
2010-12-22 18:57:02 +01:00
parent c0d8768af2 90a8a73c06
commit 4b7bd36470
2029 changed files with 37948 additions and 20457 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
fs/notify/fanotify/fanotify.c
View File

@@ -92,7 +92,11 @@ static int fanotify_get_response_from_access(struct fsnotify_group *group,
pr_debug("%s: group=%p event=%p\n", __func__, group, event);
wait_event(group->fanotify_data.access_waitq, event->response);
wait_event(group->fanotify_data.access_waitq, event->response ||
atomic_read(&group->fanotify_data.bypass_perm));
if (!event->response) /* bypass_perm set */
return 0;
/* userspace responded, convert to something usable */
spin_lock(&event->lock);

81
fs/notify/fanotify/fanotify_user.c
View File

@@ -106,20 +106,29 @@ static int create_fd(struct fsnotify_group *group, struct fsnotify_event *event)
return client_fd;
}
static ssize_t fill_event_metadata(struct fsnotify_group *group,
static int fill_event_metadata(struct fsnotify_group *group,
struct fanotify_event_metadata *metadata,
struct fsnotify_event *event)
{
int ret = 0;
pr_debug("%s: group=%p metadata=%p event=%p\n", __func__,
group, metadata, event);
metadata->event_len = FAN_EVENT_METADATA_LEN;
metadata->metadata_len = FAN_EVENT_METADATA_LEN;
metadata->vers = FANOTIFY_METADATA_VERSION;
metadata->mask = event->mask & FAN_ALL_OUTGOING_EVENTS;
metadata->pid = pid_vnr(event->tgid);
metadata->fd = create_fd(group, event);
if (unlikely(event->mask & FAN_Q_OVERFLOW))
metadata->fd = FAN_NOFD;
else {
metadata->fd = create_fd(group, event);
if (metadata->fd < 0)
ret = metadata->fd;
}
return metadata->fd;
return ret;
}
#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
@@ -200,7 +209,7 @@ static int prepare_for_access_response(struct fsnotify_group *group,
mutex_lock(&group->fanotify_data.access_mutex);
if (group->fanotify_data.bypass_perm) {
if (atomic_read(&group->fanotify_data.bypass_perm)) {
mutex_unlock(&group->fanotify_data.access_mutex);
kmem_cache_free(fanotify_response_event_cache, re);
event->response = FAN_ALLOW;
@@ -257,24 +266,34 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group,
pr_debug("%s: group=%p event=%p\n", __func__, group, event);
fd = fill_event_metadata(group, &fanotify_event_metadata, event);
if (fd < 0)
return fd;
ret = fill_event_metadata(group, &fanotify_event_metadata, event);
if (ret < 0)
goto out;
fd = fanotify_event_metadata.fd;
ret = prepare_for_access_response(group, event, fd);
if (ret)
goto out_close_fd;
ret = -EFAULT;
if (copy_to_user(buf, &fanotify_event_metadata, FAN_EVENT_METADATA_LEN))
if (copy_to_user(buf, &fanotify_event_metadata,
fanotify_event_metadata.event_len))
goto out_kill_access_response;
return FAN_EVENT_METADATA_LEN;
return fanotify_event_metadata.event_len;
out_kill_access_response:
remove_access_response(group, event, fd);
out_close_fd:
sys_close(fd);
if (fd != FAN_NOFD)
sys_close(fd);
out:
#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
if (event->mask & FAN_ALL_PERM_EVENTS) {
event->response = FAN_DENY;
wake_up(&group->fanotify_data.access_waitq);
}
#endif
return ret;
}
@@ -382,7 +401,7 @@ static int fanotify_release(struct inode *ignored, struct file *file)
mutex_lock(&group->fanotify_data.access_mutex);
group->fanotify_data.bypass_perm = true;
atomic_inc(&group->fanotify_data.bypass_perm);
list_for_each_entry_safe(re, lre, &group->fanotify_data.access_list, list) {
pr_debug("%s: found group=%p re=%p event=%p\n", __func__, group,
@@ -586,11 +605,10 @@ static int fanotify_add_vfsmount_mark(struct fsnotify_group *group,
{
struct fsnotify_mark *fsn_mark;
__u32 added;
int ret = 0;
fsn_mark = fsnotify_find_vfsmount_mark(group, mnt);
if (!fsn_mark) {
int ret;
if (atomic_read(&group->num_marks) > group->fanotify_data.max_marks)
return -ENOSPC;
@@ -600,17 +618,16 @@ static int fanotify_add_vfsmount_mark(struct fsnotify_group *group,
fsnotify_init_mark(fsn_mark, fanotify_free_mark);
ret = fsnotify_add_mark(fsn_mark, group, NULL, mnt, 0);
if (ret) {
fanotify_free_mark(fsn_mark);
return ret;
}
if (ret)
goto err;
}
added = fanotify_mark_add_to_mask(fsn_mark, mask, flags);
fsnotify_put_mark(fsn_mark);
if (added & ~mnt->mnt_fsnotify_mask)
fsnotify_recalc_vfsmount_mask(mnt);
return 0;
err:
fsnotify_put_mark(fsn_mark);
return ret;
}
static int fanotify_add_inode_mark(struct fsnotify_group *group,
@@ -619,6 +636,7 @@ static int fanotify_add_inode_mark(struct fsnotify_group *group,
{
struct fsnotify_mark *fsn_mark;
__u32 added;
int ret = 0;
pr_debug("%s: group=%p inode=%p\n", __func__, group, inode);
@@ -634,8 +652,6 @@ static int fanotify_add_inode_mark(struct fsnotify_group *group,
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;
@@ -645,16 +661,16 @@ static int fanotify_add_inode_mark(struct fsnotify_group *group,
fsnotify_init_mark(fsn_mark, fanotify_free_mark);
ret = fsnotify_add_mark(fsn_mark, group, inode, NULL, 0);
if (ret) {
fanotify_free_mark(fsn_mark);
return ret;
}
if (ret)
goto err;
}
added = fanotify_mark_add_to_mask(fsn_mark, mask, flags);
fsnotify_put_mark(fsn_mark);
if (added & ~inode->i_fsnotify_mask)
fsnotify_recalc_inode_mask(inode);
return 0;
err:
fsnotify_put_mark(fsn_mark);
return ret;
}
/* fanotify syscalls */
@@ -687,8 +703,10 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
/* fsnotify_alloc_group takes a ref. Dropped in fanotify_release */
group = fsnotify_alloc_group(&fanotify_fsnotify_ops);
if (IS_ERR(group))
if (IS_ERR(group)) {
free_uid(user);
return PTR_ERR(group);
}
group->fanotify_data.user = user;
atomic_inc(&user->fanotify_listeners);
@@ -698,6 +716,7 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
mutex_init(&group->fanotify_data.access_mutex);
init_waitqueue_head(&group->fanotify_data.access_waitq);
INIT_LIST_HEAD(&group->fanotify_data.access_list);
atomic_set(&group->fanotify_data.bypass_perm, 0);
#endif
switch (flags & FAN_ALL_CLASS_BITS) {
case FAN_CLASS_NOTIF:
@@ -764,8 +783,10 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags,
if (flags & ~FAN_ALL_MARK_FLAGS)
return -EINVAL;
switch (flags & (FAN_MARK_ADD | FAN_MARK_REMOVE | FAN_MARK_FLUSH)) {
case FAN_MARK_ADD:
case FAN_MARK_ADD: /* fallthrough */
case FAN_MARK_REMOVE:
if (!mask)
return -EINVAL;
case FAN_MARK_FLUSH:
break;
default:

1
fs/notify/inotify/inotify_user.c
View File

@@ -752,6 +752,7 @@ SYSCALL_DEFINE1(inotify_init1, int, flags)
if (ret >= 0)
return ret;
fsnotify_put_group(group);
atomic_dec(&user->inotify_devs);
out_free_uid:
free_uid(user);