linux-kernel - [PATCH 0/5] vfs: track the dentry name length in name

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Message-Id: <20190426182847.25088-1-jlayton@kernel.org>
Date:   Fri, 26 Apr 2019 14:28:42 -0400
From:   Jeff Layton <jlayton@...nel.org>
To:     viro@...iv.linux.org.uk
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        miklos@...redi.hu, gregkh@...uxfoundation.org, tj@...nel.org,
        jack@...e.cz, amir73il@...il.com, paul@...l-moore.com,
        eparis@...hat.com, linux-audit@...hat.com, rafael@...nel.org
Subject: [PATCH 0/5] vfs: track the dentry name length in name_snapshot

name_snapshot will snapshot the current contents of a dentry's name for
later consumption. Several of those users end up needing to do a strlen
on the resulting string later. We already have that info in the original
dentry though, so we can do this a bit more efficiently by stuffing the
name length into the name_snapshot as well.

This is not well tested, but it built and booted. Do we have a testsuite
that exercises the fsnotify code, in particular?

Jeff Layton (5):
  dcache: track the length of the string in struct name_snapshot
  fsnotify: have fsnotify_move take a struct qstr instead of a string
  fsnotify: have fsnotify() take a qstr instead of a string
  fsnotify: change ->handle_event and send_to_group to take a qstr
  audit: fix audit_compare_dname_path to take a qstr

 fs/dcache.c                          | 11 +++++++----
 fs/debugfs/inode.c                   |  2 +-
 fs/kernfs/file.c                     |  6 ++++--
 fs/namei.c                           |  4 ++--
 fs/notify/dnotify/dnotify.c          |  2 +-
 fs/notify/fanotify/fanotify.c        |  2 +-
 fs/notify/fsnotify.c                 |  8 ++++----
 fs/notify/inotify/inotify.h          |  2 +-
 fs/notify/inotify/inotify_fsnotify.c |  6 +++---
 fs/overlayfs/export.c                |  2 +-
 include/linux/dcache.h               |  2 +-
 include/linux/fsnotify.h             | 17 ++++++++---------
 include/linux/fsnotify_backend.h     |  6 +++---
 kernel/audit.h                       |  3 ++-
 kernel/audit_fsnotify.c              |  5 +++--
 kernel/audit_tree.c                  |  2 +-
 kernel/audit_watch.c                 |  4 ++--
 kernel/auditfilter.c                 |  7 ++++---
 kernel/auditsc.c                     |  7 +++----
 19 files changed, 52 insertions(+), 46 deletions(-)

-- 
2.20.1