Linux-CIFS Archive on
 help / color / Atom feed
* Mysterious fs ioctl
@ 2019-10-22  1:22 Steve French
  0 siblings, 0 replies; only message in thread
From: Steve French @ 2019-10-22  1:22 UTC (permalink / raw)
  To: linux-fsdevel; +Cc: CIFS

Trying to track down this failing ioctl (on a file opened O_DIRECT):

strace showed:

 ioctl(4, _IOC(_IOC_WRITE, 0x95, 0x2, 0x4), 0x7ffe5b491664) = -1
ENOTTY  (Inappropriate ioctl for device)

I could find ioctls for 0x94 but not 0x95 in kernel source ... any
idea what ioctl
   _IOC_WRITE, 0x95, 0x2, 0x4)

Wanted to make sure cifs.ko wasn't missing handling some important
ioctl for O_DIRECT workloads ...



^ permalink raw reply	[flat|nested] only message in thread

only message in thread, back to index

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-10-22  1:22 Mysterious fs ioctl Steve French

Linux-CIFS Archive on

Archives are clonable:
	git clone --mirror linux-cifs/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-cifs linux-cifs/ \
	public-inbox-index linux-cifs

Example config snippet for mirrors

Newsgroup available over NNTP:

AGPL code for this site: git clone