From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
"Darrick J . Wong" <darrick.wong@oracle.com>,
linux-block@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>
Subject: [PATCH 10/11] iomap: Inline data shouldn't see THPs
Date: Mon, 24 Aug 2020 16:16:59 +0100 [thread overview]
Message-ID: <20200824151700.16097-11-willy@infradead.org> (raw)
In-Reply-To: <20200824151700.16097-1-willy@infradead.org>
Assert that we're not seeing THPs in functions that read/write
inline data, rather than zeroing out the tail.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/iomap/buffered-io.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 52d371c59758..ca2aa1995519 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -210,6 +210,7 @@ iomap_read_inline_data(struct inode *inode, struct page *page,
return;
BUG_ON(page->index);
+ BUG_ON(PageCompound(page));
BUG_ON(size > PAGE_SIZE - offset_in_page(iomap->inline_data));
addr = kmap_atomic(page);
@@ -727,6 +728,7 @@ static size_t iomap_write_end_inline(struct inode *inode, struct page *page,
flush_dcache_page(page);
WARN_ON_ONCE(!PageUptodate(page));
+ BUG_ON(PageCompound(page));
BUG_ON(pos + copied > PAGE_SIZE - offset_in_page(iomap->inline_data));
addr = kmap_atomic(page);
--
2.28.0
next prev parent reply other threads:[~2020-08-24 15:24 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-24 15:16 [PATCH 00/11] iomap/fs/block patches for 5.11 Matthew Wilcox (Oracle)
2020-08-24 15:16 ` [PATCH 01/11] fs: Make page_mkwrite_check_truncate thp-aware Matthew Wilcox (Oracle)
2020-08-24 15:16 ` [PATCH 02/11] mm: Support THPs in zero_user_segments Matthew Wilcox (Oracle)
2020-08-24 15:16 ` [PATCH 03/11] mm: Zero the head page, not the tail page Matthew Wilcox (Oracle)
2020-08-24 15:16 ` [PATCH 04/11] block: Add bio_for_each_thp_segment_all Matthew Wilcox (Oracle)
2020-08-27 8:44 ` Christoph Hellwig
2020-08-31 19:48 ` Matthew Wilcox
2020-09-01 5:34 ` Christoph Hellwig
2020-09-01 13:05 ` Matthew Wilcox
2020-09-01 14:50 ` Christoph Hellwig
2020-08-24 15:16 ` [PATCH 05/11] iomap: Support THPs in iomap_adjust_read_range Matthew Wilcox (Oracle)
2020-08-24 15:16 ` [PATCH 06/11] iomap: Support THPs in invalidatepage Matthew Wilcox (Oracle)
2020-08-24 15:16 ` [PATCH 07/11] iomap: Support THPs in read paths Matthew Wilcox (Oracle)
2020-08-24 15:16 ` [PATCH 08/11] iomap: Change iomap_write_begin calling convention Matthew Wilcox (Oracle)
2020-08-24 15:16 ` [PATCH 09/11] iomap: Support THPs in write paths Matthew Wilcox (Oracle)
2020-08-24 15:16 ` Matthew Wilcox (Oracle) [this message]
2020-08-24 15:17 ` [PATCH 11/11] iomap: Handle tail pages in iomap_page_mkwrite Matthew Wilcox (Oracle)
2020-08-25 10:29 ` [PATCH 00/11] iomap/fs/block patches for 5.11 William Kucharski
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