kernel/arch/um/include/asm/futex.h, branch linux-rolling-stableHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-rolling-stable2021-06-17T20:01:45Zum: add a UML specific futex implementation2021-06-17T20:01:45ZAnton Ivanovanton.ivanov@cambridgegreys.com2021-03-12T15:16:09Zurn:sha1:dd3035a21ba7ccaa883d7107d357ad06320d78fc
The generic asm futex implementation emulates atomic access to
memory by doing a get_user followed by put_user. These translate
to two mapping operations on UML with paging enabled in the
meantime. This, in turn may end up changing interrupts,
invoking the signal loop, etc.
This replaces the generic implementation by a mapping followed
by an operation on the mapped segment.
Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
um: switch to generic-y2011-11-02T13:15:30ZAl Viroviro@ftp.linux.org.uk2011-08-18T19:13:10Zurn:sha1:f5e900770f387d7a4c633b7cef105039f32a85c1
kill wrapper headers
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
x86, um: initial part of asm-um move2008-10-23T05:55:19ZAl Viroviro@zeniv.linux.org.uk2008-08-17T23:13:17Zurn:sha1:8ede0bdb63305d3353efd97e9af6210afb05734e
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>