search for: bits_to_clear

Displaying 17 results from an estimated 17 matches for "bits_to_clear".

2017 Dec 12
0
[PATCH v19 3/7] xbitmap: add more operations
...s/include/linux/bitmap.h @@ -37,6 +37,40 @@ static inline void bitmap_zero(unsigned long *dst, int nbits) } } +static inline void __bitmap_clear(unsigned long *map, unsigned int start, + int len) +{ + unsigned long *p = map + BIT_WORD(start); + const unsigned int size = start + len; + int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG); + unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start); + + while (len - bits_to_clear >= 0) { + *p &= ~mask_to_clear; + len -= bits_to_clear; + bits_to_clear = BITS_PER_LONG; + mask_to_clear = ~0UL; + p++; + } + if (len) { + mask_to_cl...
2017 Nov 03
0
[PATCH v17 2/6] radix tree test suite: add tests for xbitmap
...s/include/linux/bitmap.h @@ -36,6 +36,40 @@ static inline void bitmap_zero(unsigned long *dst, int nbits) } } +static inline void __bitmap_clear(unsigned long *map, unsigned int start, + int len) +{ + unsigned long *p = map + BIT_WORD(start); + const unsigned int size = start + len; + int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG); + unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start); + + while (len - bits_to_clear >= 0) { + *p &= ~mask_to_clear; + len -= bits_to_clear; + bits_to_clear = BITS_PER_LONG; + mask_to_clear = ~0UL; + p++; + } + if (len) { + mask_to_cl...
2017 Dec 21
0
[PATCH v20 3/7 RESEND] xbitmap: add more operations
...s/include/linux/bitmap.h @@ -37,6 +37,40 @@ static inline void bitmap_zero(unsigned long *dst, int nbits) } } +static inline void __bitmap_clear(unsigned long *map, unsigned int start, + int len) +{ + unsigned long *p = map + BIT_WORD(start); + const unsigned int size = start + len; + int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG); + unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start); + + while (len - bits_to_clear >= 0) { + *p &= ~mask_to_clear; + len -= bits_to_clear; + bits_to_clear = BITS_PER_LONG; + mask_to_clear = ~0UL; + p++; + } + if (len) { + mask_to_cl...
2017 Dec 21
7
[PATCH v20 3/7 RESEND] xbitmap: add more operations
...s/include/linux/bitmap.h @@ -37,6 +37,40 @@ static inline void bitmap_zero(unsigned long *dst, int nbits) } } +static inline void __bitmap_clear(unsigned long *map, unsigned int start, + int len) +{ + unsigned long *p = map + BIT_WORD(start); + const unsigned int size = start + len; + int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG); + unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start); + + while (len - bits_to_clear >= 0) { + *p &= ~mask_to_clear; + len -= bits_to_clear; + bits_to_clear = BITS_PER_LONG; + mask_to_clear = ~0UL; + p++; + } + if (len) { + mask_to_cl...
2017 Dec 21
7
[PATCH v20 3/7 RESEND] xbitmap: add more operations
...s/include/linux/bitmap.h @@ -37,6 +37,40 @@ static inline void bitmap_zero(unsigned long *dst, int nbits) } } +static inline void __bitmap_clear(unsigned long *map, unsigned int start, + int len) +{ + unsigned long *p = map + BIT_WORD(start); + const unsigned int size = start + len; + int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG); + unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start); + + while (len - bits_to_clear >= 0) { + *p &= ~mask_to_clear; + len -= bits_to_clear; + bits_to_clear = BITS_PER_LONG; + mask_to_clear = ~0UL; + p++; + } + if (len) { + mask_to_cl...
2018 Jan 09
0
[PATCH v21 1/5] xbitmap: Introduce xbitmap
...s/include/linux/bitmap.h @@ -37,6 +37,40 @@ static inline void bitmap_zero(unsigned long *dst, int nbits) } } +static inline void __bitmap_clear(unsigned long *map, unsigned int start, + int len) +{ + unsigned long *p = map + BIT_WORD(start); + const unsigned int size = start + len; + int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG); + unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start); + + while (len - bits_to_clear >= 0) { + *p &= ~mask_to_clear; + len -= bits_to_clear; + bits_to_clear = BITS_PER_LONG; + mask_to_clear = ~0UL; + p++; + } + if (len) { + mask_to_cl...
2018 Jan 09
6
[PATCH v21 0/5] Virtio-balloon Enhancement
This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live
2017 Dec 19
15
[PATCH v20 0/7] Virtio-balloon Enhancement
This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live
2017 Dec 19
15
[PATCH v20 0/7] Virtio-balloon Enhancement
This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live
2017 Sep 30
12
[PATCH v16 0/5] Virtio-balloon Enhancement
This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live
2017 Sep 30
12
[PATCH v16 0/5] Virtio-balloon Enhancement
This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live
2017 Nov 03
12
[PATCH v17 0/6] Virtio-balloon Enhancement
This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live
2017 Nov 03
12
[PATCH v17 0/6] Virtio-balloon Enhancement
This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live
2017 Dec 12
21
[PATCH v19 0/7] Virtio-balloon Enhancement
This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live
2017 Dec 12
21
[PATCH v19 0/7] Virtio-balloon Enhancement
This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live
2017 Nov 29
22
[PATCH v18 00/10] Virtio-balloon Enhancement
This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live
2017 Nov 29
22
[PATCH v18 00/10] Virtio-balloon Enhancement
This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one array each time; and 2) free page block reporting: a new virtqueue to report guest free pages to the host. The second feature can be used to accelerate live migration of VMs. Here are some details: Live