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...d. > + * > + * Return 0 when a page block is found on the caller specified free list. > + */ > +int report_unused_page_block(struct zone *zone, unsigned int order, > + unsigned int migratetype, struct page **page) > +{ > + struct zone *this_zone; > + struct list_head *this_list; > + int ret = 0; > + unsigned long flags; > + > + /* Sanity check */ > + if (zone == NULL || page == NULL || order >= MAX_ORDER || > + migratetype >= MIGRATE_TYPES) > + return -EINVAL; > + > + /* Zone validity check */ > + for_each_populated_zone(this_zone)...

...d. > + * > + * Return 0 when a page block is found on the caller specified free list. > + */ > +int report_unused_page_block(struct zone *zone, unsigned int order, > + unsigned int migratetype, struct page **page) > +{ > + struct zone *this_zone; > + struct list_head *this_list; > + int ret = 0; > + unsigned long flags; > + > + /* Sanity check */ > + if (zone == NULL || page == NULL || order >= MAX_ORDER || > + migratetype >= MIGRATE_TYPES) > + return -EINVAL; > + > + /* Zone validity check */ > + for_each_populated_zone(this_zone)...

...er the first + * page block on the list. + * + * Return 0 when a page block is found on the caller specified free list. + */ +int inquire_unused_page_block(struct zone *zone, unsigned int order, + unsigned int migratetype, struct page **page) +{ + struct zone *this_zone; + struct list_head *this_list; + int ret = 0; + unsigned long flags; + + /* Sanity check */ + if (zone == NULL || page == NULL || order >= MAX_ORDER || + migratetype >= MIGRATE_TYPES) + return -EINVAL; + + /* Zone validity check */ + for_each_populated_zone(this_zone) { + if (zone == this_zone) + break; + } + + /*...

...ether it wants to play tricks with the dirty bit or just wants to drop pages while VCPU is stopped. > +int report_unused_page_block(struct zone *zone, unsigned int order, > + unsigned int migratetype, struct page **page) > +{ > + struct zone *this_zone; > + struct list_head *this_list; > + int ret = 0; > + unsigned long flags; > + > + /* Sanity check */ > + if (zone == NULL || page == NULL || order >= MAX_ORDER || > + migratetype >= MIGRATE_TYPES) > + return -EINVAL; Why do callers this? > + > + /* Zone validity check */ > + for_each_po...

...ether it wants to play tricks with the dirty bit or just wants to drop pages while VCPU is stopped. > +int report_unused_page_block(struct zone *zone, unsigned int order, > + unsigned int migratetype, struct page **page) > +{ > + struct zone *this_zone; > + struct list_head *this_list; > + int ret = 0; > + unsigned long flags; > + > + /* Sanity check */ > + if (zone == NULL || page == NULL || order >= MAX_ORDER || > + migratetype >= MIGRATE_TYPES) > + return -EINVAL; Why do callers this? > + > + /* Zone validity check */ > + for_each_po...

...ffer the first + * page block on the list. + * + * Return 0 when a page block is found on the caller specified free list. + */ +int report_unused_page_block(struct zone *zone, unsigned int order, + unsigned int migratetype, struct page **page) +{ + struct zone *this_zone; + struct list_head *this_list; + int ret = 0; + unsigned long flags; + + /* Sanity check */ + if (zone == NULL || page == NULL || order >= MAX_ORDER || + migratetype >= MIGRATE_TYPES) + return -EINVAL; + + /* Zone validity check */ + for_each_populated_zone(this_zone) { + if (zone == this_zone) + break; + } + + /*...

...ffer the first + * page block on the list. + * + * Return 0 when a page block is found on the caller specified free list. + */ +int report_unused_page_block(struct zone *zone, unsigned int order, + unsigned int migratetype, struct page **page) +{ + struct zone *this_zone; + struct list_head *this_list; + int ret = 0; + unsigned long flags; + + /* Sanity check */ + if (zone == NULL || page == NULL || order >= MAX_ORDER || + migratetype >= MIGRATE_TYPES) + return -EINVAL; + + /* Zone validity check */ + for_each_populated_zone(this_zone) { + if (zone == this_zone) + break; + } + + /*...

...+ * pages before the function was invoked. + * + * Return 0 when a page block is found on the caller specified free list. + */ +int report_unused_page_block(struct zone *zone, unsigned int order, + unsigned int migratetype, struct page **page) +{ + struct zone *this_zone; + struct list_head *this_list; + int ret = 0; + unsigned long flags; + + /* Sanity check */ + if (zone == NULL || page == NULL || order >= MAX_ORDER || + migratetype >= MIGRATE_TYPES) + return -EINVAL; + + /* Zone validity check */ + for_each_populated_zone(this_zone) { + if (zone == this_zone) + break; + } + + /*...

Hi friends, I have got a list where each element might have variable number of members. $`4213` [1] "214077_x_at" $`164832` [1] "225996_at" "235977_at" $`339010` [1] NA $`23410` [1] "221562_s_at" "221913_at" "49327_at" $`285386` [1] "229764_at" $`2099` [1] "205225_at" "211233_x_at"

...when a page block is found on the caller specified free list. > > + */ > > +int report_unused_page_block(struct zone *zone, unsigned int order, > > + unsigned int migratetype, struct page **page) > > +{ > > + struct zone *this_zone; > > + struct list_head *this_list; > > + int ret = 0; > > + unsigned long flags; > > + > > + /* Sanity check */ > > + if (zone == NULL || page == NULL || order >= MAX_ORDER || > > + migratetype >= MIGRATE_TYPES) > > + return -EINVAL; > > + > > + /* Zone validity check...

...when a page block is found on the caller specified free list. > > + */ > > +int report_unused_page_block(struct zone *zone, unsigned int order, > > + unsigned int migratetype, struct page **page) > > +{ > > + struct zone *this_zone; > > + struct list_head *this_list; > > + int ret = 0; > > + unsigned long flags; > > + > > + /* Sanity check */ > > + if (zone == NULL || page == NULL || order >= MAX_ORDER || > > + migratetype >= MIGRATE_TYPES) > > + return -EINVAL; > > + > > + /* Zone validity check...

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 by one; and 2) cmdq: a new virtqueue to send commands between the device and driver. Currently, it supports commands to report memory stats (replace the old statq mechanism) and report guest unused pages.

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 by one; and 2) cmdq: a new virtqueue to send commands between the device and driver. Currently, it supports commands to report memory stats (replace the old statq mechanism) and report guest unused pages.

This patch series implements the follow two things: 1) Optimization of balloon page transfer: instead of transferring balloon pages to host one by one, the new mechanism transfers them in chunks. 2) A mechanism to report info of guest unused pages: the pages have been unused at some time between when host sent command and when guest reported them. Host uses that by tracking memory changes and

This patch series implements the follow two things: 1) Optimization of balloon page transfer: instead of transferring balloon pages to host one by one, the new mechanism transfers them in chunks. 2) A mechanism to report info of guest unused pages: the pages have been unused at some time between when host sent command and when guest reported them. Host uses that by tracking memory changes and

This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 2) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Changes: v8->v9: 1) Split the two new features, VIRTIO_BALLOON_F_BALLOON_CHUNKS and VIRTIO_BALLOON_F_MISC_VQ, which were mixed together in the previous implementation; 2) Simpler

This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 2) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Changes: v8->v9: 1) Split the two new features, VIRTIO_BALLOON_F_BALLOON_CHUNKS and VIRTIO_BALLOON_F_MISC_VQ, which were mixed together in the previous implementation; 2) Simpler

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, instead of one by one; and 2) cmdq: a new virtqueue to send commands between the device and driver. Currently, it supports commands to report memory stats (replace the old statq mechanism) and report guest unused pages. Liang Li

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, instead of one by one; and 2) cmdq: a new virtqueue to send commands between the device and driver. Currently, it supports commands to report memory stats (replace the old statq mechanism) and report guest unused pages. Liang Li

...* 4658 * Return 0 when a page block is found on the caller specified free list. 4659 */ 4660 int report_unused_page_block(struct zone *zone, unsigned int order, 4661 unsigned int migratetype, struct page **page) 4662 { > 4663 struct zone *this_zone; 4664 struct list_head *this_list; 4665 int ret = 0; 4666 unsigned long flags; 4667 4668 /* Sanity check */ 4669 if (zone == NULL || page == NULL || order >= MAX_ORDER || 4670 migratetype >= MIGRATE_TYPES) 4671 return -EINVAL; --- 0-DAY kernel test infrastructure Open Source Technolog...