From: Miklos Szeredi Date: Tue, 6 Sep 2005 22:18:26 +0000 (-0700) Subject: [PATCH] cifs_create() fix X-Git-Tag: v2.6.14-rc1~625 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=e08fc0457af28f2ebec36296ea7ada6024fde81b;p=linux-2.6-omap-h63xx.git [PATCH] cifs_create() fix cifs_create() did totally the wrong thing with nd->intent.open.flags: it interpreted nd->intent.open.flags as the original open flags, not the one transformed for open_namei(). Also it used the intent data even if it was not filled in (if called from sys_mknod()). Signed-off-by: Miklos Szeredi Cc: Cc: Christoph Hellwig Cc: Steven French Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 3f3538d4a1f..d335269bd91 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -145,24 +145,23 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, return -ENOMEM; } - if(nd) { - if ((nd->intent.open.flags & O_ACCMODE) == O_RDONLY) - desiredAccess = GENERIC_READ; - else if ((nd->intent.open.flags & O_ACCMODE) == O_WRONLY) { - desiredAccess = GENERIC_WRITE; - write_only = TRUE; - } else if ((nd->intent.open.flags & O_ACCMODE) == O_RDWR) { - /* GENERIC_ALL is too much permission to request */ - /* can cause unnecessary access denied on create */ - /* desiredAccess = GENERIC_ALL; */ - desiredAccess = GENERIC_READ | GENERIC_WRITE; + if(nd && (nd->flags & LOOKUP_OPEN)) { + int oflags = nd->intent.open.flags; + + desiredAccess = 0; + if (oflags & FMODE_READ) + desiredAccess |= GENERIC_READ; + if (oflags & FMODE_WRITE) { + desiredAccess |= GENERIC_WRITE; + if (!(oflags & FMODE_READ)) + write_only = TRUE; } - if((nd->intent.open.flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL)) + if((oflags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL)) disposition = FILE_CREATE; - else if((nd->intent.open.flags & (O_CREAT | O_TRUNC)) == (O_CREAT | O_TRUNC)) + else if((oflags & (O_CREAT | O_TRUNC)) == (O_CREAT | O_TRUNC)) disposition = FILE_OVERWRITE_IF; - else if((nd->intent.open.flags & O_CREAT) == O_CREAT) + else if((oflags & O_CREAT) == O_CREAT) disposition = FILE_OPEN_IF; else { cFYI(1,("Create flag not set in create function"));