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| author | Brett Holman <bpholman5@gmail.com> | 2021-05-21 16:45:38 -0600 |
|---|---|---|
| committer | Stijn Tintel <stijn@linux-ipv6.be> | 2021-05-24 15:55:01 +0300 |
| commit | 16b0c1f3e1bbf27256a2f15dd9e88065c4fe728f (patch) | |
| tree | bac64fd5a3c805a0e2078c9d34a1fdc08fe1801b | |
| parent | 2ff61207919c37000d84abd02b16f5926d5d6e92 (diff) | |
bcachefs: rewrote prefetch asm in gas syntax for clang compatibility
| -rw-r--r-- | fs/bcachefs/bset.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/fs/bcachefs/bset.c b/fs/bcachefs/bset.c index 26203a5da504..8a149e21d0b4 100644 --- a/fs/bcachefs/bset.c +++ b/fs/bcachefs/bset.c @@ -1193,13 +1193,11 @@ static struct bkey_packed *bset_search_write_set(const struct btree *b, static inline void prefetch_four_cachelines(void *p) { -#if (CONFIG_X86_64 && !defined(__clang__)) - asm(".intel_syntax noprefix;" - "prefetcht0 [%0 - 127 + 64 * 0];" - "prefetcht0 [%0 - 127 + 64 * 1];" - "prefetcht0 [%0 - 127 + 64 * 2];" - "prefetcht0 [%0 - 127 + 64 * 3];" - ".att_syntax prefix;" +#if CONFIG_X86_64 + asm("prefetcht0 (-127 + 64 * 0)(%0);" + "prefetcht0 (-127 + 64 * 1)(%0);" + "prefetcht0 (-127 + 64 * 2)(%0);" + "prefetcht0 (-127 + 64 * 3)(%0);" : : "r" (p + 127)); #else |