提交 0e8d96dd 编写于 作者: K Kautuk Consul 提交者: Boaz Harrosh

exofs: readpage_strip: Add a BUG_ON to check for PageLocked(page)

readpage_strip can be called from several code paths all of which
require that the page be locked before any operations are carried
out.

Since we export the exofs_readpage callback to the VFS, add a
BUG_ON to check for PageLocked(page) to make sure that this
understanding is never compromised.
Signed-off-by: NKautuk Consul <consul.kautuk@gmail.com>
Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com>
上级 c999ff68
......@@ -389,6 +389,8 @@ static int readpage_strip(void *data, struct page *page)
size_t len;
int ret;
BUG_ON(!PageLocked(page));
/* FIXME: Just for debugging, will be removed */
if (PageUptodate(page))
EXOFS_ERR("PageUptodate(0x%lx, 0x%lx)\n", pcol->inode->i_ino,
......
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