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From: Chandan Rajendra <chandan@linux.vnet.ibm.com>
To: clm@fb.com, jbacik@fb.com, bo.li.liu@oracle.com, dsterba@suse.cz
Cc: Chandra Seetharaman <sekharan@us.ibm.com>,
	aneesh.kumar@linux.vnet.ibm.com, linux-btrfs@vger.kernel.org,
	chandan@mykolab.com,
	Chandan Rajendra <chandan@linux.vnet.ibm.com>
Subject: [RFC PATCH V10 07/19] Btrfs: subpagesize-blocksize: Allow mounting filesystems where sectorsize != PAGE_SIZE
Date: Wed, 10 Dec 2014 18:44:09 +0530	[thread overview]
Message-ID: <1418217261-17273-8-git-send-email-chandan@linux.vnet.ibm.com> (raw)
In-Reply-To: <1418217261-17273-1-git-send-email-chandan@linux.vnet.ibm.com>

From: Chandra Seetharaman <sekharan@us.ibm.com>

This patch allows mounting filesystems with blocksize smaller than the
PAGE_SIZE.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
---
 fs/btrfs/disk-io.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 6c6e8bb..2f3caaf 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2634,12 +2634,6 @@ int open_ctree(struct super_block *sb,
 		goto fail_sb_buffer;
 	}
 
-	if (sectorsize != PAGE_SIZE) {
-		printk(KERN_WARNING "BTRFS: Incompatible sector size(%lu) "
-		       "found on %s\n", (unsigned long)sectorsize, sb->s_id);
-		goto fail_sb_buffer;
-	}
-
 	mutex_lock(&fs_info->chunk_mutex);
 	ret = btrfs_read_sys_array(tree_root);
 	mutex_unlock(&fs_info->chunk_mutex);
-- 
2.1.0


  parent reply	other threads:[~2014-12-10 13:15 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-10 13:14 [RFC PATCH V10 00/19] Btrfs: Subpagesize-blocksize: Get rid of whole page I/O Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 01/19] Btrfs: subpagesize-blocksize: Get rid of whole page reads Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 02/19] Btrfs: subpagesize-blocksize: Get rid of whole page writes Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 03/19] Btrfs: subpagesize-blocksize: __btrfs_buffered_write: Reserve/release extents aligned to block size Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 04/19] Btrfs: subpagesize-blocksize: Define extent_buffer_head Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 05/19] Btrfs: subpagesize-blocksize: Read tree blocks whose size is <PAGE_CACHE_SIZE Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 06/19] Btrfs: subpagesize-blocksize: Write only dirty extent buffers belonging to a page Chandan Rajendra
2014-12-10 13:14 ` Chandan Rajendra [this message]
2014-12-10 13:14 ` [RFC PATCH V10 08/19] Btrfs: subpagesize-blocksize: Compute and look up csums based on sectorsized blocks Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 09/19] Btrfs: subpagesize-blocksize: __extent_writepage: Write only dirty blocks of a page Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 10/19] Btrfs: subpagesize-blocksize: fallocate: Work with sectorsized units Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 11/19] Btrfs: subpagesize-blocksize: btrfs_page_mkwrite: Reserve space in " Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 12/19] Btrfs: subpagesize-blocksize: Search for all ordered extents that could span across a page Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 13/19] Btrfs: subpagesize-blocksize: Deal with partial ordered extent allocations Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 14/19] Btrfs: subpagesize-blocksize: Explicitly Track I/O status of blocks of an ordered extent Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 15/19] Btrfs: subpagesize-blocksize: Revert commit fc4adbff823f76577ece26dcb88bf6f8392dbd43 Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 16/19] Btrfs: subpagesize-blocksize: Track blocks of ordered extent submitted for write I/O Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 17/19] Btrfs: subpagesize-blocksize: Prevent writes to an extent buffer when PG_writeback flag is set Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 18/19] Btrfs: subpagesize-blocksize: Use (eb->start, seq) as search key for tree modification log Chandan Rajendra
2014-12-10 13:14 ` [RFC PATCH V10 19/19] Btrfs: subpagesize-blocksize: btrfs_submit_direct_hook: Handle map_length < bio vector length Chandan Rajendra

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