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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2008-11-07 09:06:45 -0500
committerTheodore Ts'o <tytso@mit.edu>2008-11-07 09:06:45 -0500
commited9b3e3379731e9f9d2f73f3d7fd9e7d2ce3df4a (patch)
treed17381e45fe8843646ca70424095a9aa36711ee7 /fs
parentac51d83705c2a38c71f39cde99708b14e6212a60 (diff)
ext4: Mark the buffer_heads as dirty and uptodate after prepare_write
We need to make sure we mark the buffer_heads as dirty and uptodate so that block_write_full_page write them correctly. This fixes mmap corruptions that can occur in low memory situations. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs')
-rw-r--r--fs/ext4/inode.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 5a130b56f1cf..be21a5ae33cb 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2329,6 +2329,8 @@ static int ext4_da_writepage(struct page *page,
unlock_page(page);
return 0;
}
+ /* now mark the buffer_heads as dirty and uptodate */
+ block_commit_write(page, 0, PAGE_CACHE_SIZE);
}
if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))

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