diff options
author | Martin Pitt <martin.pitt@ubuntu.com> | 2015-05-27 09:56:03 +0200 |
---|---|---|
committer | Martin Pitt <martin.pitt@ubuntu.com> | 2015-05-29 17:40:12 +0200 |
commit | 5d409034017e9f9f8c4392157d95511fc2e05d87 (patch) | |
tree | e0223a0ec6b7ec9c516e00370da305e5f8c2d96a /man/sd_journal_get_usage.xml | |
parent | 2fe9e87a2475d5c2f5e2bb1a7e711c59fd0b2c6d (diff) |
path-util: Fix path_is_mount_point for files
Commits 27cc6f166 and f25afeb broke path_is_mount_point() for files (such as
/etc/machine-id → /run/machine-id bind mounts) as with the factorization of
fd_is_mount_point() we lost the parent directory. We cannot determine that from
an fd only as openat(fd, "..") only works for directory fds.
Change fd_is_mount_point() to behave like openat(): It now takes a file
descriptor of the containing directory, a file name in it, and flags (which can
be 0 or AT_SYMLINK_FOLLOW). Unlike name_to_handle_at() or openat(), fstatat()
only accepts the inverse flag AT_SYMLINK_NOFOLLOW and complains with EINVAL
about AT_SYMLINK_FOLLOW; so we need to transform the flags for that fallback.
Adjust rm_rf_children() accordingly (only other caller of fd_is_mount_point()
aside from path_is_mount_point()).
Add test cases for files, links, and file bind mounts (the latter will only
work when running as root). Split out a new test_path_is_mount_point() test
case function as it got significantly larger now.
Diffstat (limited to 'man/sd_journal_get_usage.xml')
0 files changed, 0 insertions, 0 deletions