linux-kernel - [PATCH 0/4] ubifs: Add overlayfs support

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Message-Id: <1473776338-18816-1-git-send-email-richard@nod.at>
Date:   Tue, 13 Sep 2016 16:18:54 +0200
From:   Richard Weinberger <richard@....at>
To:     linux-mtd@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org, richard@....at, dedekind1@...il.com,
        adrian.hunter@...el.com
Subject: [PATCH 0/4] ubifs: Add overlayfs support

To support overlayfs in a proper way a filesystem has to offer support
for DT_CHR, RENAME_WHITEOUT and RENAME_EXCHANGE.
While UBIFS supports DT_CHR it lacks support for RENAME_WHITEOUT and
RENAME_EXCHANGE. This patch series implement the missing bits.
RENAME_WHITEOUT itself depends on O_TMPFILE, therefore O_TMPFILE is now
also supported.

Richard Weinberger (4):
  ubifs: Implement O_TMPFILE
  ubifs: Implement RENAME_WHITEOUT
  ubifs: Implement RENAME_EXCHANGE
  ubifs: Use move variable in ubifs_rename()

 fs/ubifs/dir.c     | 231 ++++++++++++++++++++++++++++++++++++++++++++++++-----
 fs/ubifs/journal.c | 188 +++++++++++++++++++++++++++++++++++++++----
 fs/ubifs/ubifs.h   |   7 +-
 3 files changed, 392 insertions(+), 34 deletions(-)

-- 
2.7.3