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| author | Eric Paris <eparis@redhat.com> | 2009-12-17 21:24:29 -0500 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2010-07-28 09:58:59 -0400 |
| commit | 0ff21db9fcc39042b814dad8a4b7508710a75235 (patch) | |
| tree | a650b240f64893f86626b8b4a4b694446190aa3a /fs/notify/fanotify | |
| parent | 90dd201d1ab064512078a77762a793e0bf5f3040 (diff) | |
| download | kernel_samsung_smdk4412-0ff21db9fcc39042b814dad8a4b7508710a75235.zip kernel_samsung_smdk4412-0ff21db9fcc39042b814dad8a4b7508710a75235.tar.gz kernel_samsung_smdk4412-0ff21db9fcc39042b814dad8a4b7508710a75235.tar.bz2 | |
fanotify: hooks the fanotify_mark syscall to the vfsmount code
Create a new fanotify_mark flag which indicates we should attach the mark
to the vfsmount holding the object referenced by dfd and pathname rather
than the inode itself.
Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'fs/notify/fanotify')
| -rw-r--r-- | fs/notify/fanotify/fanotify_user.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index db80a0d..8126726 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -485,7 +485,8 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags, __u64 mask, int dfd, const char __user * pathname) { - struct inode *inode; + struct inode *inode = NULL; + struct vfsmount *mnt = NULL; struct fsnotify_group *group; struct file *filp; struct path path; @@ -515,16 +516,22 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags, goto fput_and_out; /* inode held in place by reference to path; group by fget on fd */ - inode = path.dentry->d_inode; + if (!(flags & FAN_MARK_ON_VFSMOUNT)) + 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)) { case FAN_MARK_ADD: - ret = fanotify_add_inode_mark(group, inode, mask); + if (flags & FAN_MARK_ON_VFSMOUNT) + ret = fanotify_add_vfsmount_mark(group, mnt, mask); + else + ret = fanotify_add_inode_mark(group, inode, mask); break; case FAN_MARK_REMOVE: - ret = fanotify_remove_mark(group, inode, NULL, mask); + ret = fanotify_remove_mark(group, inode, mnt, mask); break; default: ret = -EINVAL; |