From d83c7eb65d9bf0a57e7d5ed87a5bd8e5ea6b1fb6 Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Mon, 13 Jan 2014 23:45:43 +0200 Subject: [PATCH] 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: Boaz Harrosh --- fs/exofs/inode.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c index a52a5d23c30b..7e7ba9ada405 100644 --- a/fs/exofs/inode.c +++ b/fs/exofs/inode.c @@ -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, -- 2.20.1