linux-ext4 - [PATCH 3 1/4] Add new FMODE flags: FMODE_32bithash and FMODE

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Date:	Tue, 16 Aug 2011 13:54:09 +0200
From:	Bernd Schubert <bernd.schubert@...m.fraunhofer.de>
To:	linux-nfs@...r.kernel.org, linux-ext4@...r.kernel.org
Cc:	bfields@...ldses.org, tytso@....edu, bernd.schubert@...tmail.fm,
	hch@...radead.org, adilger@...mcloud.com, yong.fan@...mcloud.com,
	linux-fsdevel@...r.kernel.org
Subject: [PATCH 3 1/4] Add new FMODE flags: FMODE_32bithash and FMODE_64bithash

Those flags are supposed to be set by NFS readdir() to tell ext3/ext4
to 32bit (NFSv2) or 64bit hash values (offsets) in seekdir().

Signed-off-by: Bernd Schubert <bernd.schubert@...m.fraunhofer.de>
---
 include/linux/fs.h |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 178cdb4..18d40ae 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -91,6 +91,11 @@ struct inodes_stat_t {
 /* File is opened using open(.., 3, ..) and is writeable only for ioctls
    (specialy hack for floppy.c) */
 #define FMODE_WRITE_IOCTL	((__force fmode_t)0x100)
+/* 32bit hashes as llseek() offset (for directories) */
+#define FMODE_32BITHASH         ((__force fmode_t)0x200)
+/* 64bit hashes as llseek() offset (for directories) */
+#define FMODE_64BITHASH         ((__force fmode_t)0x400)
+
 
 /*
  * Don't update ctime and mtime.

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