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author | Al Viro <viro@zeniv.linux.org.uk> | 2019-06-30 17:39:08 +0300 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2019-07-17 05:43:40 +0300 |
commit | 4edbe133f851c9e3a2f2a1db367e826b01e72594 (patch) | |
tree | efd25d386cbb1f6dcf85519f0ea318b7f2d04e87 /init | |
parent | 9bdebc2bd1c4abfbf44dc154cc152ec333e004de (diff) | |
download | linux-4edbe133f851c9e3a2f2a1db367e826b01e72594.tar.xz |
make struct mountpoint bear the dentry reference to mountpoint, not struct mount
Using dput_to_list() to shift the contributing reference from ->mnt_mountpoint
to ->mnt_mp->m_dentry. Dentries are dropped (with dput_to_list()) as soon
as struct mountpoint is destroyed; in cases where we are under namespace_sem
we use the global list, shrinking it in namespace_unlock(). In case of
detaching stuck MNT_LOCKed children at final mntput_no_expire() we use a local
list and shrink it ourselves. ->mnt_ex_mountpoint crap is gone.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions