From: Chandra Seetharaman <sekharan@us.ibm.com>
To: linux-btrfs@vger.kernel.org
Cc: Chandra Seetharaman <sekharan@us.ibm.com>
Subject: [PATCH 4/7] btrfs: subpagesize-blocksize: Handle iosize properly in submit_extent_page()
Date: Wed, 11 Dec 2013 17:38:39 -0600 [thread overview]
Message-ID: <1386805122-23972-5-git-send-email-sekharan@us.ibm.com> (raw)
In-Reply-To: <1386805122-23972-1-git-send-email-sekharan@us.ibm.com>
For the subpagesize-blocksize case make sure that the IO submitted through
submit_extent_page() is at least of PAGE_CACHE_SIZE
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
---
fs/btrfs/extent_io.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index e1992ed..2cf2a3b 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2647,6 +2647,9 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree,
int old_compressed = prev_bio_flags & EXTENT_BIO_COMPRESSED;
size_t page_size = min_t(size_t, size, PAGE_CACHE_SIZE);
+ if (page->mapping->host->i_sb->s_blocksize < PAGE_CACHE_SIZE)
+ page_size = PAGE_CACHE_SIZE;
+
if (bio_ret && *bio_ret) {
bio = *bio_ret;
if (old_compressed)
--
1.7.12.4
next prev parent reply other threads:[~2013-12-11 23:40 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-11 23:38 [PATCH 0/7] Patches to support subpagesize blocksize Chandra Seetharaman
2013-12-11 23:38 ` [PATCH 1/7] btrfs: subpagesize-blocksize: Define extent_buffer_head Chandra Seetharaman
2013-12-16 12:32 ` saeed bishara
2013-12-16 16:17 ` Chandra Seetharaman
2013-12-17 15:35 ` David Sterba
2013-12-11 23:38 ` [PATCH 2/7] btrfs: subpagesize-blocksize: Use a global alignment for size Chandra Seetharaman
2013-12-16 12:33 ` saeed bishara
2013-12-16 14:48 ` David Sterba
2013-12-16 16:18 ` Chandra Seetharaman
2013-12-11 23:38 ` [PATCH 3/7] btrfs: subpagesize-blocksize: Handle small extent maps properly Chandra Seetharaman
2013-12-11 23:38 ` Chandra Seetharaman [this message]
2013-12-11 23:38 ` [PATCH 5/7] btrfs: subpagesize-blocksize: handle checksum calculations properly Chandra Seetharaman
2013-12-11 23:38 ` [PATCH 6/7] btrfs: subpagesize-blocksize: Handle relocation clusters appropriately Chandra Seetharaman
2013-12-11 23:38 ` [PATCH 7/7] btrfs: subpagesize-blocksize: Allow mounting filesystems where sectorsize != PAGE_SIZE Chandra Seetharaman
2013-12-13 1:07 ` David Sterba
2013-12-16 12:50 ` saeed bishara
2013-12-12 20:40 ` [PATCH 0/7] Patches to support subpagesize blocksize Josef Bacik
2013-12-13 1:17 ` David Sterba
2013-12-13 15:17 ` Chandra Seetharaman
2013-12-13 15:58 ` David Sterba
2013-12-13 18:39 ` Josef Bacik
2013-12-13 22:09 ` Chandra Seetharaman
2014-01-08 20:06 ` Chandra Seetharaman
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