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(parent: 5bc2479) | patch
ntsync: Introduce NTSYNC_IOC_MUTEX_UNLOCK.
authorElizabeth Figura <zfigura@codeweavers.com>
Fri, 13 Dec 2024 19:34:47 +0000 (13:34 -0600)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 8 Jan 2025 12:18:10 +0000 (13:18 +0100)
commit31ca7bb8e8539b454414a2c4f8ad643c939cb0cf
tree19ff4ee4134ea8b647c221ba6f35f1a43cbd3777tree
parent5bc2479a3585be35ea32e431bc82282bbf5a5d5bcommit | diff
ntsync: Introduce NTSYNC_IOC_MUTEX_UNLOCK.

This corresponds to the NT syscall NtReleaseMutant().

This syscall decrements the mutex's recursion count by one, and returns the
previous value. If the mutex is not owned by the current task, the function
instead fails and returns -EPERM.

Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com>
Link: https://lore.kernel.org/r/20241213193511.457338-7-zfigura@codeweavers.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/misc/ntsync.c diff | blob | blame | history
include/uapi/linux/ntsync.h diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)