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authorAndreas Gruenbacher <agruen@suse.de>2009-12-17 21:24:29 -0500
committerEric Paris <eparis@redhat.com>2010-07-28 09:58:59 -0400
commitf3640192c0a177506ec08ab07ed3178b912574da (patch)
treecbea6c5163a02b154b7077238c3e056e79bfe668 /fs/notify/fanotify/fanotify_user.c
parenteac8e9e80ccbd30801b7b76a2ee4c6c5a681e53c (diff)
fanotify: split fanotify_remove_mark
split fanotify_remove_mark into fanotify_remove_inode_mark and fanotify_remove_vfsmount_mark. Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'fs/notify/fanotify/fanotify_user.c')
-rw-r--r--fs/notify/fanotify/fanotify_user.c45
1 files changed, 27 insertions, 18 deletions
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 091371e1bde..00628d3ce5a 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -310,22 +310,33 @@ static __u32 fanotify_mark_remove_from_mask(struct fsnotify_mark *fsn_mark, __u3
return mask & oldmask;
}
-static int fanotify_remove_mark(struct fsnotify_group *group, struct inode *inode,
- struct vfsmount *mnt, __u32 mask)
+static int fanotify_remove_vfsmount_mark(struct fsnotify_group *group,
+ struct vfsmount *mnt, __u32 mask)
{
struct fsnotify_mark *fsn_mark = NULL;
__u32 removed;
- BUG_ON(inode && mnt);
- BUG_ON(!inode && !mnt);
+ fsn_mark = fsnotify_find_vfsmount_mark(group, mnt);
+ if (!fsn_mark)
+ return -ENOENT;
- if (inode)
- fsn_mark = fsnotify_find_inode_mark(group, inode);
- else if (mnt)
- fsn_mark = fsnotify_find_vfsmount_mark(group, mnt);
- else
- BUG();
+ removed = fanotify_mark_remove_from_mask(fsn_mark, mask);
+ fsnotify_put_mark(fsn_mark);
+ if (removed & group->mask)
+ fsnotify_recalc_group_mask(group);
+ if (removed & mnt->mnt_fsnotify_mask)
+ fsnotify_recalc_vfsmount_mask(mnt);
+
+ return 0;
+}
+static int fanotify_remove_inode_mark(struct fsnotify_group *group,
+ struct inode *inode, __u32 mask)
+{
+ struct fsnotify_mark *fsn_mark = NULL;
+ __u32 removed;
+
+ fsn_mark = fsnotify_find_inode_mark(group, inode);
if (!fsn_mark)
return -ENOENT;
@@ -335,13 +346,8 @@ static int fanotify_remove_mark(struct fsnotify_group *group, struct inode *inod
if (removed & group->mask)
fsnotify_recalc_group_mask(group);
- if (inode) {
- if (removed & inode->i_fsnotify_mask)
- fsnotify_recalc_inode_mask(inode);
- } else if (mnt) {
- if (removed & mnt->mnt_fsnotify_mask)
- fsnotify_recalc_vfsmount_mask(mnt);
- }
+ if (removed & inode->i_fsnotify_mask)
+ fsnotify_recalc_inode_mask(inode);
return 0;
}
@@ -531,7 +537,10 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags,
ret = fanotify_add_inode_mark(group, inode, mask);
break;
case FAN_MARK_REMOVE:
- ret = fanotify_remove_mark(group, inode, mnt, mask);
+ if (flags & FAN_MARK_MOUNT)
+ ret = fanotify_remove_vfsmount_mark(group, mnt, mask);
+ else
+ ret = fanotify_remove_inode_mark(group, inode, mask);
break;
default:
ret = -EINVAL;