diff options
Diffstat (limited to 'fs/notify')
| -rw-r--r-- | fs/notify/fanotify/fanotify_user.c | 12 | ||||
| -rw-r--r-- | fs/notify/inode_mark.c | 8 | ||||
| -rw-r--r-- | fs/notify/mark.c | 21 | ||||
| -rw-r--r-- | fs/notify/vfsmount_mark.c | 5 |
4 files changed, 39 insertions, 7 deletions
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index 3e275f17e7b..9fe760baf69 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -514,9 +514,10 @@ 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)) { + switch (flags & (FAN_MARK_ADD | FAN_MARK_REMOVE | FAN_MARK_FLUSH)) { case FAN_MARK_ADD: case FAN_MARK_REMOVE: + case FAN_MARK_FLUSH: break; default: return -EINVAL; @@ -545,7 +546,7 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags, group = filp->private_data; /* create/update an inode mark */ - switch (flags & (FAN_MARK_ADD | FAN_MARK_REMOVE)) { + switch (flags & (FAN_MARK_ADD | FAN_MARK_REMOVE | FAN_MARK_FLUSH)) { case FAN_MARK_ADD: if (flags & FAN_MARK_MOUNT) ret = fanotify_add_vfsmount_mark(group, mnt, mask, flags); @@ -558,6 +559,13 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags, else ret = fanotify_remove_inode_mark(group, inode, mask, flags); break; + case FAN_MARK_FLUSH: + if (flags & FAN_MARK_MOUNT) + fsnotify_clear_vfsmount_marks_by_group(group); + else + fsnotify_clear_inode_marks_by_group(group); + fsnotify_recalc_group_mask(group); + break; default: ret = -EINVAL; } diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c index 4292f9e23ae..0c0a48b1659 100644 --- a/fs/notify/inode_mark.c +++ b/fs/notify/inode_mark.c @@ -104,6 +104,14 @@ void fsnotify_clear_marks_by_inode(struct inode *inode) } /* + * Given a group clear all of the inode marks associated with that group. + */ +void fsnotify_clear_inode_marks_by_group(struct fsnotify_group *group) +{ + fsnotify_clear_marks_by_group_flags(group, FSNOTIFY_MARK_FLAG_INODE); +} + +/* * given a group and inode, find the mark associated with that combination. * if found take a reference to that mark and return it, else return NULL */ diff --git a/fs/notify/mark.c b/fs/notify/mark.c index cb1d822f227..1e824e64441 100644 --- a/fs/notify/mark.c +++ b/fs/notify/mark.c @@ -270,18 +270,21 @@ err: } /* - * Given a group, destroy all of the marks associated with that group. + * clear any marks in a group in which mark->flags & flags is true */ -void fsnotify_clear_marks_by_group(struct fsnotify_group *group) +void fsnotify_clear_marks_by_group_flags(struct fsnotify_group *group, + unsigned int flags) { struct fsnotify_mark *lmark, *mark; LIST_HEAD(free_list); spin_lock(&group->mark_lock); list_for_each_entry_safe(mark, lmark, &group->marks_list, g_list) { - list_add(&mark->free_g_list, &free_list); - list_del_init(&mark->g_list); - fsnotify_get_mark(mark); + if (mark->flags & flags) { + list_add(&mark->free_g_list, &free_list); + list_del_init(&mark->g_list); + fsnotify_get_mark(mark); + } } spin_unlock(&group->mark_lock); @@ -291,6 +294,14 @@ void fsnotify_clear_marks_by_group(struct fsnotify_group *group) } } +/* + * Given a group, destroy all of the marks associated with that group. + */ +void fsnotify_clear_marks_by_group(struct fsnotify_group *group) +{ + fsnotify_clear_marks_by_group_flags(group, (unsigned int)-1); +} + void fsnotify_duplicate_mark(struct fsnotify_mark *new, struct fsnotify_mark *old) { assert_spin_locked(&old->lock); diff --git a/fs/notify/vfsmount_mark.c b/fs/notify/vfsmount_mark.c index 1b61d0a942d..8f1aa02f4f0 100644 --- a/fs/notify/vfsmount_mark.c +++ b/fs/notify/vfsmount_mark.c @@ -51,6 +51,11 @@ void fsnotify_clear_marks_by_mount(struct vfsmount *mnt) } } +void fsnotify_clear_vfsmount_marks_by_group(struct fsnotify_group *group) +{ + fsnotify_clear_marks_by_group_flags(group, FSNOTIFY_MARK_FLAG_VFSMOUNT); +} + /* * Recalculate the mask of events relevant to a given vfsmount locked. */ |