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| author | Paolo Abeni <pabeni@redhat.com> | 2024-02-01 13:06:43 +0100 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-02-01 13:06:43 +0100 |
| commit | a40539127479a69fb8ebee46ccd7fbc50794b19d (patch) | |
| tree | 79a26332da7b6d3e0be461a15fe7316f84ec7c55 /lib/bitmap.c | |
| parent | 3723b56d6f73f7c8c3b521a80556f129830f6fb9 (diff) | |
| parent | 8afefc361209b726aa5886833384d048412b159e (diff) | |
Merge branch 'net-mana-assigning-irq-affinity-on-ht-cores'
Souradeep Chakrabarti says:
====================
net: mana: Assigning IRQ affinity on HT cores
This patch set introduces a new helper function irq_setup(),
to optimize IRQ distribution for MANA network devices.
The patch set makes the driver working 15% faster than
with cpumask_local_spread().
====================
Link: https://lore.kernel.org/r/1706509267-17754-1-git-send-email-schakrabarti@linux.microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'lib/bitmap.c')
| -rw-r--r-- | lib/bitmap.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c index 09522af227f1..b97692854966 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -348,6 +348,13 @@ unsigned int __bitmap_weight_and(const unsigned long *bitmap1, } EXPORT_SYMBOL(__bitmap_weight_and); +unsigned int __bitmap_weight_andnot(const unsigned long *bitmap1, + const unsigned long *bitmap2, unsigned int bits) +{ + return BITMAP_WEIGHT(bitmap1[idx] & ~bitmap2[idx], bits); +} +EXPORT_SYMBOL(__bitmap_weight_andnot); + void __bitmap_set(unsigned long *map, unsigned int start, int len) { unsigned long *p = map + BIT_WORD(start); |