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From: NeilBrown <neilb@suse.de>
To: David Howells <dhowells@redhat.com>, Chris Mason <clm@fb.com>,
	Al Viro <viro@ZenIV.linux.org.uk>, Josef Bacik <jbacik@fb.com>,
	David Sterba <dsterba@suse.cz>
Cc: linux-cachefs@vger.kernel.org, Dave Chinner <david@fromorbit.com>,
	linux-kernel@vger.kernel.org,
	Christoph Hellwig <hch@infradead.org>,
	linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org
Subject: [PATCH 3/3] btrfs: set FS_SUPPORTS_SEEK_HOLE flag.
Date: Mon, 20 Apr 2015 15:27:52 +1000	[thread overview]
Message-ID: <20150420052752.26554.13596.stgit@notabene.brown> (raw)
In-Reply-To: <20150420052558.26554.97143.stgit@notabene.brown>

This allows fscache to cachefiles in a btrfs filesystem.

Signed-off-by: NeilBrown <neilb@suse.de>
---
 fs/btrfs/super.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 05fef198ff94..d3c5d2b40f8e 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1904,7 +1904,8 @@ static struct file_system_type btrfs_fs_type = {
 	.name		= "btrfs",
 	.mount		= btrfs_mount,
 	.kill_sb	= btrfs_kill_super,
-	.fs_flags	= FS_REQUIRES_DEV | FS_BINARY_MOUNTDATA,
+	.fs_flags	= FS_REQUIRES_DEV | FS_BINARY_MOUNTDATA |
+			  FS_SUPPORTS_SEEK_HOLE,
 };
 MODULE_ALIAS_FS("btrfs");
 



  parent reply	other threads:[~2015-04-20  5:28 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-20  5:27 [PATCH 0/3] Allow fscache to work on BTRFS NeilBrown
2015-04-20  5:27 ` [PATCH 1/3] cachefiles: perform test on s_blocksize when opening cache file NeilBrown
2015-04-20  5:27 ` [PATCH 2/3] fscache/cachefiles: optionally use SEEK_DATA instead of ->bmap NeilBrown
2015-04-20  6:08   ` Christoph Hellwig
2015-04-20  6:27     ` NeilBrown
2015-04-20  9:45       ` Christoph Hellwig
2015-04-21 23:06         ` NeilBrown
2015-04-20  5:27 ` NeilBrown [this message]
2015-04-20 19:48   ` [PATCH 3/3] btrfs: set FS_SUPPORTS_SEEK_HOLE flag Chris Mason
2015-04-20  8:47 ` David Howells
2015-04-20  9:33   ` NeilBrown
2015-04-20  9:46   ` David Howells
2015-04-20  9:48     ` Christoph Hellwig
2015-04-20 12:58       ` Al Viro
2015-04-21  8:43         ` Christoph Hellwig
2015-04-21 10:23           ` Hugh Dickins
2015-04-27  5:41       ` NeilBrown
2015-04-27 13:43         ` Christoph Hellwig
2015-04-20 11:21 ` [PATCH 2/3] fscache/cachefiles: optionally use SEEK_DATA instead of ->bmap David Howells
2015-04-20 15:59 ` [RFC][PATCH] cachefiles: Make better use of SEEK_DATA/SEEK_HOLE David Howells

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