From: Miklos Szeredi <mszeredi@suse.cz>
Date: Wed, 23 May 2007 20:57:54 +0000 (-0700)
Subject: fuse: generic_write_checks() for direct_io
X-Git-Tag: v2.6.22-rc3~52
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=889f784831d6cc9125a74eb55a5641f95635a204;p=linux-2.6

fuse: generic_write_checks() for direct_io

This fixes O_APPEND in direct IO mode.  Also checks writes against file size
limits, notably rlimits.

Reported by Greg Bruno.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index d0ed60bc31..adf7995232 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -610,7 +610,9 @@ static ssize_t fuse_direct_write(struct file *file, const char __user *buf,
 	ssize_t res;
 	/* Don't allow parallel writes to the same file */
 	mutex_lock(&inode->i_mutex);
-	res = fuse_direct_io(file, buf, count, ppos, 1);
+	res = generic_write_checks(file, ppos, &count, 0);
+	if (!res)
+		res = fuse_direct_io(file, buf, count, ppos, 1);
 	mutex_unlock(&inode->i_mutex);
 	return res;
 }