From: Milan Broz Date: Tue, 3 Oct 2006 08:15:22 +0000 (-0700) Subject: [PATCH] dm: support ioctls on mapped devices: fix with fake file X-Git-Tag: v2.6.19-rc1~279 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e90dae1f58d475b71bcc4eebf6d4fd5217ed85c7;p=pandora-kernel.git [PATCH] dm: support ioctls on mapped devices: fix with fake file The new ioctl code passes the wrong file pointer to the underlying device. No file pointer is available so make a temporary fake one. ioctl_by_bdev() does set_fs(KERNEL_DS) so it's for ioctls originating within the kernel and unsuitable here. We are processing ioctls that originated in userspace and mapping them to different devices. Fixing the existing callers that pass a NULL file struct and consolidating the fake_file users are separate matters to solve in later patches. Signed-off-by: Milan Broz Signed-off-by: Alasdair G Kergon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Reading git-diff-tree failed