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Commit 0e8d96dd authored by Kautuk Consul's avatar Kautuk Consul Committed by Boaz Harrosh
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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: default avatarKautuk Consul <consul.kautuk@gmail.com>
Signed-off-by: default avatarBoaz Harrosh <bharrosh@panasas.com>
parent c999ff68

fs/exofs/inode.c

+2 −0
Original line number Diff line number Diff line
@@ -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,