linux-kernel - [PATCH] fuse:rely on fuse_perm for exec when no mode bits set

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Date:   Wed,  1 Apr 2020 09:31:14 +0000
From:   Chakra Divi <chakragithub@...il.com>
To:     Miklos Szeredi <miklos@...redi.hu>
Cc:     chakragithub@...il.com, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] fuse:rely on fuse_perm for exec when no mode bits set

In current code, for exec we are checking mode bits
for x bit set even though the fuse_perm_getattr returns
success. Changes in this patch avoids mode bit explicit
check, leaves the exec checking to fuse file system
in uspace.

Signed-off-by: Chakra Divi <chakragithub@...il.com>
---
 fs/fuse/dir.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index de1e2fde..7b44c4e 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1196,12 +1196,7 @@ static int fuse_permission(struct inode *inode, int mask)
 		err = fuse_access(inode, mask);
 	} else if ((mask & MAY_EXEC) && S_ISREG(inode->i_mode)) {
 		if (!(inode->i_mode & S_IXUGO)) {
-			if (refreshed)
-				return -EACCES;
-
 			err = fuse_perm_getattr(inode, mask);
-			if (!err && !(inode->i_mode & S_IXUGO))
-				return -EACCES;
 		}
 	}
 	return err;
-- 
2.7.4