VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Christoph Hellwig <hch@lst.de> 2010-06-04 11:29:58 +0200 committer: Al Viro <viro@zeniv.linux.org.uk> 2010-08-09 16:47:33 -0400 commit: 155130a4f7848b1aac439cab6bda1a175507c71c parent: 6e1db88d536adcbbfe562b2d4b7d6425784fff12
Commit Summary:
get rid of block_write_begin_newtrunc
Diffstat:
1 file changed, 9 insertions, 3 deletions
diff --git a/fs/omfs/file.c b/fs/omfs/file.c
index 6e7a3291bbe8..810cff346468 100644
--- a/fs/omfs/file.c
+++ b/fs/omfs/file.c
@@ -312,9 +312,17 @@ static int omfs_write_begin(struct file *file, struct address_space *mapping,
 			loff_t pos, unsigned len, unsigned flags,
 			struct page **pagep, void **fsdata)
 {
-	*pagep = NULL;
-	return block_write_begin(file, mapping, pos, len, flags,
-				pagep, fsdata, omfs_get_block);
+	int ret;
+
+	ret = block_write_begin(mapping, pos, len, flags, pagep,
+				omfs_get_block);
+	if (unlikely(ret)) {
+		loff_t isize = mapping->host->i_size;
+		if (pos + len > isize)
+			vmtruncate(mapping->host, isize);
+	}
+
+	return ret;
 }
 
 static sector_t omfs_bmap(struct address_space *mapping, sector_t block)