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* [PATCH] docs: ioctl-number: document fscrypt ioctl numbers
@ 2019-10-09 23:45 Eric Biggers
  2019-10-21 20:29 ` [f2fs-dev] " Eric Biggers
  0 siblings, 1 reply; 3+ messages in thread
From: Eric Biggers @ 2019-10-09 23:45 UTC (permalink / raw)
  To: linux-fscrypt
  Cc: Theodore Y . Ts'o, Jaegeuk Kim, linux-ext4, linux-f2fs-devel,
	linux-fsdevel

From: Eric Biggers <ebiggers@google.com>

The 'f' ioctls with numbers 19-26 decimal are currently used for fscrypt
(a.k.a. ext4/f2fs/ubifs encryption), and up to 39 decimal is reserved
for future fscrypt use, as per the comment in fs/ext4/ext4.h.  So the
reserved range is 13-27 hex.

Document this in ioctl-number.rst.

Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 Documentation/ioctl/ioctl-number.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/ioctl/ioctl-number.rst b/Documentation/ioctl/ioctl-number.rst
index bef79cd4c6b4d..4ef86433bd677 100644
--- a/Documentation/ioctl/ioctl-number.rst
+++ b/Documentation/ioctl/ioctl-number.rst
@@ -233,6 +233,7 @@ Code  Seq#    Include File                                           Comments
 'f'   00-0F  fs/ext4/ext4.h                                          conflict!
 'f'   00-0F  linux/fs.h                                              conflict!
 'f'   00-0F  fs/ocfs2/ocfs2_fs.h                                     conflict!
+'f'   13-27  linux/fscrypt.h
 'f'   81-8F  linux/fsverity.h
 'g'   00-0F  linux/usb/gadgetfs.h
 'g'   20-2F  linux/usb/g_printer.h
-- 
2.23.0.581.g78d2f28ef7-goog

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2019-10-09 23:45 [PATCH] docs: ioctl-number: document fscrypt ioctl numbers Eric Biggers
2019-10-21 20:29 ` [f2fs-dev] " Eric Biggers
2019-10-21 20:29   ` Eric Biggers

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