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2022-07-17um: Remove straying parenthesisBenjamin Beichler1-1/+1
Commit e3a33af812c6 ("um: fix and optimize xor select template for CONFIG64 and timetravel mode") caused a build regression when CONFIG_XOR_BLOCKS and CONFIG_UML_TIME_TRAVEL_SUPPORT are selected. Fix it by removing the straying parenthesis. Cc: [email protected] Fixes: e3a33af812c6 ("um: fix and optimize xor select template for CONFIG64 and timetravel mode") Signed-off-by: Benjamin Beichler <[email protected]> [rw: Added commit message] Signed-off-by: Richard Weinberger <[email protected]>
2022-03-11um: fix and optimize xor select template for CONFIG64 and timetravel modeBenjamin Beichler1-1/+3
Due to dropped inclusion of asm-generic/xor.h, xor_block_8regs symbol is missing with CONFIG64 and break compilation, as the asm/xor_64.h also did not include it. The patch recreate the logic from arch/x86, which check whether AVX is available and add fallbacks for 32bit and 64bit config of um. A very minor additional "fix" is, the return of the macro parameter instead of NULL, as this is the original intent of the macro, but this does not change the actual behavior. Fixes: c0ecca6604b8 ("um: enable the use of optimized xor routines in UML") Signed-off-by: Benjamin Beichler <[email protected]> Acked-By: Anton Ivanov <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2021-06-17um: enable the use of optimized xor routines in UMLAnton Ivanov1-1/+16
This patch enables the use of optimized xor routines from the x86 tree as well as the necessary fpu api shims so they can work on UML. Signed-off-by: Anton Ivanov <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2020-04-29um: Fix xor.h includeJohannes Berg1-1/+1
Two independent changes here ended up going into the tree one after another, without a necessary rename, fix that. Reported-by: Thomas Meyer <[email protected]> Fixes: f185063bff91 ("um: Move timer-internal.h to non-shared") Signed-off-by: Johannes Berg <[email protected]> Reviewed-by: Brendan Higgins <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2020-01-19um: Fix time-travel=inf-cpu with xor/raid6Johannes Berg1-0/+7
Today, I erroneously built a time-travel configuration with btrfs enabled, and noticed it cannot boot in time-travel=inf-cpu mode, both xor and raid6 speed measurement gets stuck. For xor, work around it by picking the first algorithm if inf-cpu mode is enabled. For raid6, I didn't find such a workaround, so disallow enabling time-travel mode if RAID6_PQ_BENCHMARK is enabled. With this, and RAID6_PQ_BENCHMARK disabled, I can boot a kernel that has btrfs enabled in time-travel=inf-cpu mode. Signed-off-by: Johannes Berg <[email protected]> Acked-by: Anton Ivanov <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2011-11-02um: switch to generic-yAl Viro1-6/+0
kill wrapper headers Signed-off-by: Al Viro <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2008-10-22x86, um: initial part of asm-um moveAl Viro1-0/+6
Signed-off-by: Al Viro <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
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