FROMLIST: docs: ioctl-number: document fscrypt ioctl numbers
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. Change-Id: Id106c59de21d1585c22729bd5b4339b27c298c9c Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Satya Tangirala <satyat@google.com> Link: https://patchwork.kernel.org/patch/11182409/
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@ -233,6 +233,7 @@ Code Seq# Include File Comments
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'f' 00-0F fs/ext4/ext4.h conflict!
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'f' 00-0F linux/fs.h conflict!
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'f' 00-0F fs/ocfs2/ocfs2_fs.h conflict!
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'f' 13-27 linux/fscrypt.h
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'f' 81-8F linux/fsverity.h
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'g' 00-0F linux/usb/gadgetfs.h
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'g' 20-2F linux/usb/g_printer.h
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