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-rw-r--r--fs/buffer.c23
1 files changed, 11 insertions, 12 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index a60f60396cfa..64fe82ec65ff 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -123,14 +123,6 @@ void __wait_on_buffer(struct buffer_head * bh)
}
EXPORT_SYMBOL(__wait_on_buffer);
-static void
-__clear_page_buffers(struct page *page)
-{
- ClearPagePrivate(page);
- set_page_private(page, 0);
- put_page(page);
-}
-
static void buffer_io_error(struct buffer_head *bh, char *msg)
{
if (!test_bit(BH_Quiet, &bh->b_state))
@@ -906,7 +898,7 @@ link_dev_buffers(struct page *page, struct buffer_head *head)
bh = bh->b_this_page;
} while (bh);
tail->b_this_page = head;
- attach_page_buffers(page, head);
+ attach_page_private(page, head);
}
static sector_t blkdev_max_block(struct block_device *bdev, unsigned int size)
@@ -1154,12 +1146,19 @@ EXPORT_SYMBOL(mark_buffer_dirty);
void mark_buffer_write_io_error(struct buffer_head *bh)
{
+ struct super_block *sb;
+
set_buffer_write_io_error(bh);
/* FIXME: do we need to set this in both places? */
if (bh->b_page && bh->b_page->mapping)
mapping_set_error(bh->b_page->mapping, -EIO);
if (bh->b_assoc_map)
mapping_set_error(bh->b_assoc_map, -EIO);
+ rcu_read_lock();
+ sb = READ_ONCE(bh->b_bdev->bd_super);
+ if (sb)
+ errseq_set(&sb->s_wb_err, -EIO);
+ rcu_read_unlock();
}
EXPORT_SYMBOL(mark_buffer_write_io_error);
@@ -1580,7 +1579,7 @@ void create_empty_buffers(struct page *page,
bh = bh->b_this_page;
} while (bh != head);
}
- attach_page_buffers(page, head);
+ attach_page_private(page, head);
spin_unlock(&page->mapping->private_lock);
}
EXPORT_SYMBOL(create_empty_buffers);
@@ -2567,7 +2566,7 @@ static void attach_nobh_buffers(struct page *page, struct buffer_head *head)
bh->b_this_page = head;
bh = bh->b_this_page;
} while (bh != head);
- attach_page_buffers(page, head);
+ attach_page_private(page, head);
spin_unlock(&page->mapping->private_lock);
}
@@ -3227,7 +3226,7 @@ drop_buffers(struct page *page, struct buffer_head **buffers_to_free)
bh = next;
} while (bh != head);
*buffers_to_free = head;
- __clear_page_buffers(page);
+ detach_page_private(page);
return 1;
failed:
return 0;