posix-clock: introduce posix_clock_context concept

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[ Upstream commit 60c6946675 ]

Add the necessary structure to support custom private-data per
posix-clock user.

The previous implementation of posix-clock assumed all file open
instances need access to the same clock structure on private_data.

The need for individual data structures per file open instance has been
identified when developing support for multiple timestamp event queue
users for ptp_clock.

Signed-off-by: Xabier Marquiegui <reibax@gmail.com>
Suggested-by: Richard Cochran <richardcochran@gmail.com>
Suggested-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: e859d375d1 ("posix-clock: Store file pointer in struct posix_clock_context")
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Xabier Marquiegui 2023-10-12 00:39:53 +02:00 • committed by Greg Kroah-Hartman

parent dc84036c17

commit a006fc4485

4 changed files with 76 additions and 32 deletions

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21

drivers/ptp/ptp_chardev.c

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16

drivers/ptp/ptp_private.h

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35

include/linux/posix-clock.h

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36

kernel/time/posix-clock.c

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