提交 beb42dd7 编写于 作者: J Josef Bacik 提交者: Chris Mason

Btrfs: pass locked_page into extent_clear_unlock_delalloc if theres an error

While doing my enospc work I got a transaction abortion that resulted in a
panic when we tried to unlock_page() an already unlocked page.  This is
because we aren't calling extent_clear_unlock_delalloc with the locked page
so it was unlocking all the pages in the range.  This is wrong since
__extent_writepage expects to have the page locked still unless we return
*page_started as 1.  This should keep us from panicing.  Thanks,
Signed-off-by: NJosef Bacik <josef@redhat.com>
上级 1e20932a
......@@ -830,7 +830,7 @@ static noinline int cow_file_range(struct inode *inode,
if (IS_ERR(trans)) {
extent_clear_unlock_delalloc(inode,
&BTRFS_I(inode)->io_tree,
start, end, NULL,
start, end, locked_page,
EXTENT_CLEAR_UNLOCK_PAGE |
EXTENT_CLEAR_UNLOCK |
EXTENT_CLEAR_DELALLOC |
......@@ -963,7 +963,7 @@ static noinline int cow_file_range(struct inode *inode,
out_unlock:
extent_clear_unlock_delalloc(inode,
&BTRFS_I(inode)->io_tree,
start, end, NULL,
start, end, locked_page,
EXTENT_CLEAR_UNLOCK_PAGE |
EXTENT_CLEAR_UNLOCK |
EXTENT_CLEAR_DELALLOC |
......
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