Commit d83c7eb6 authored by Boaz Harrosh's avatar Boaz Harrosh
Browse files

exofs: Allow O_DIRECT open 



With this minimal do nothing patch an application can open O_DIRECT
and then actually do buffered sync IO instead. But the aio API is
supported which is a good thing

Signed-off-by: default avatarBoaz Harrosh <bharrosh@panasas.com>
parent 2deb76db

fs/exofs/inode.c

+9 −1
Original line number Diff line number Diff line
@@ -961,6 +961,14 @@ static void exofs_invalidatepage(struct page *page, unsigned int offset, 
	WARN_ON(1);

}





 /* TODO: Should be easy enough to do proprly */

static ssize_t exofs_direct_IO(int rw, struct kiocb *iocb,

		const struct iovec *iov, loff_t offset, unsigned long nr_segs)

{

	return 0;

}



const struct address_space_operations exofs_aops = {

	.readpage	= exofs_readpage,

	.readpages	= exofs_readpages,
@@ -974,7 +982,7 @@ const struct address_space_operations exofs_aops = { 


	/* Not implemented Yet */

	.bmap		= NULL, /* TODO: use osd's OSD_ACT_READ_MAP */

	.direct_IO	= NULL, /* TODO: Should be trivial to do */

	.direct_IO	= exofs_direct_IO,



	/* With these NULL has special meaning or default is not exported */

	.get_xip_mem	= NULL,