search for: migrate_vma_collect_hole

Move the definition of migrate_vma_collect_skip() to make it callable by migrate_vma_collect_hole(). This helps make the next patch easier to read. Signed-off-by: Ralph Campbell <rcampbell at nvidia.com> --- mm/migrate.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index 4f89360d9e77..ce16ed3deab6 100644...

Move the definition of migrate_vma_collect_skip() to make it callable by migrate_vma_collect_hole(). This helps make the next patch easier to read. Signed-off-by: Ralph Campbell <rcampbell at nvidia.com> --- mm/migrate.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index c1585ec29827..665516319b66 100644...

...c index 87c52e0ee580..1536677cefc9 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -51,6 +51,7 @@ #include <linux/oom.h> #include <asm/tlbflush.h> +#include <asm/pgalloc.h> #define CREATE_TRACE_POINTS #include <trace/events/migrate.h> @@ -2185,6 +2186,8 @@ static int migrate_vma_collect_hole(unsigned long start, for (addr = start; addr < end; addr += PAGE_SIZE) { migrate->src[migrate->npages] = flags; + if ((addr & ~PMD_MASK) == 0 && (end & ~PMD_MASK) == 0) + migrate->src[migrate->npages] |= MIGRATE_PFN_COMPOUND; migrate->dst[migrate->n...

...index 665516319b66..7b69a5f91d0a 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -51,6 +51,7 @@ #include <linux/oom.h> #include <asm/tlbflush.h> +#include <asm/pgalloc.h> #define CREATE_TRACE_POINTS #include <trace/events/migrate.h> @@ -2275,19 +2276,28 @@ static int migrate_vma_collect_hole(unsigned long start, { struct migrate_vma *migrate = walk->private; unsigned long addr; + unsigned long mpfn; /* Only allow populating anonymous memory. */ - if (!vma_is_anonymous(walk->vma)) { - for (addr = start; addr < end; addr += PAGE_SIZE) { - migrate->src[migrate->...

...a/mm/migrate.c > +++ b/mm/migrate.c > @@ -51,6 +51,7 @@ > #include <linux/oom.h> > > #include <asm/tlbflush.h> > +#include <asm/pgalloc.h> > > #define CREATE_TRACE_POINTS > #include <trace/events/migrate.h> > @@ -2185,6 +2186,8 @@ static int migrate_vma_collect_hole(unsigned long start, > > for (addr = start; addr < end; addr += PAGE_SIZE) { > migrate->src[migrate->npages] = flags; > + if ((addr & ~PMD_MASK) == 0 && (end & ~PMD_MASK) == 0) > + migrate->src[migrate->npages] |= MIGRATE_PFN_COMPOUND; > m...

This series adds support for transparent huge page migration to migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers. Earlier versions were posted previously [1] and [2]. The patches apply cleanly to the linux-mm 5.10.0-rc2 tree. There are a lot of other THP patches being posted. I don't think there are any semantic conflicts but there may be some merge conflicts depending on

.../mm/migrate.c b/mm/migrate.c index 33e063c28c1b..993386cb5335 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2117,7 +2117,7 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm, #endif /* CONFIG_NUMA */ -#if defined(CONFIG_MIGRATE_VMA_HELPER) +#ifdef CONFIG_DEVICE_PRIVATE static int migrate_vma_collect_hole(unsigned long start, unsigned long end, struct mm_walk *walk) @@ -2942,4 +2942,4 @@ void migrate_vma_finalize(struct migrate_vma *migrate) } } EXPORT_SYMBOL(migrate_vma_finalize); -#endif /* defined(MIGRATE_VMA_HELPER) */ +#endif /* CONFIG_DEVICE_PRIVATE */ -- 2.20.1

This series adds support for transparent huge page migration to migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers. An earlier version was posted previously [1]. This version now supports splitting a THP midway in the migration process which led to a number of changes. The patches apply cleanly to the current linux-mm tree. Since there are a couple of patches in linux-mm from Dan

These patches apply to linux-5.8.0-rc1. Patches 1-3 should probably go into 5.8, the others can be queued for 5.9. Patches 4-6 improve the HMM self tests. Patch 7-8 prepare nouveau for the meat of this series which adds support and testing for compound page mapping of system memory (patches 9-11) and compound page migration to device private memory (patches 12-16). Since these changes are split

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which starts revamping the migrate_vma functionality. The prime idea is to export three slightly lower level functions and thus avoid the need for migrate_vma_ops callbacks. Diffstat: 7 files changed, 282 insertions(+), 614 deletions(-) A git tree is also available at: git://git.infradead.org/users/hch/misc.git

...ruct mm_struct *mm, #endif /* CONFIG_NUMA */ #if defined(CONFIG_MIGRATE_VMA_HELPER) -struct migrate_vma { - struct vm_area_struct *vma; - unsigned long *dst; - unsigned long *src; - unsigned long cpages; - unsigned long npages; - unsigned long start; - unsigned long end; -}; - static int migrate_vma_collect_hole(unsigned long start, unsigned long end, struct mm_walk *walk) @@ -2578,6 +2568,108 @@ static void migrate_vma_unmap(struct migrate_vma *migrate) } } +/** + * migrate_vma_setup() - prepare to migrate a range of memory + * @args: contains the vma, start, and and pfns arrays for...

...ruct mm_struct *mm, #endif /* CONFIG_NUMA */ #if defined(CONFIG_MIGRATE_VMA_HELPER) -struct migrate_vma { - struct vm_area_struct *vma; - unsigned long *dst; - unsigned long *src; - unsigned long cpages; - unsigned long npages; - unsigned long start; - unsigned long end; -}; - static int migrate_vma_collect_hole(unsigned long start, unsigned long end, struct mm_walk *walk) @@ -2578,6 +2568,110 @@ static void migrate_vma_unmap(struct migrate_vma *migrate) } } +/** + * migrate_vma_setup() - prepare to migrate a range of memory + * @args: contains the vma, start, and and pfns arrays for...

...ined(CONFIG_MIGRATE_VMA_HELPER) > -struct migrate_vma { > - struct vm_area_struct *vma; > - unsigned long *dst; > - unsigned long *src; > - unsigned long cpages; > - unsigned long npages; > - unsigned long start; > - unsigned long end; > -}; > - > static int migrate_vma_collect_hole(unsigned long start, > unsigned long end, > struct mm_walk *walk) > @@ -2578,6 +2568,108 @@ static void migrate_vma_unmap(struct migrate_vma *migrate) > } > } > > +/** > + * migrate_vma_setup() - prepare to migrate a range of memory > + * @args...

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which starts revamping the migrate_vma functionality. The prime idea is to export three slightly lower level functions and thus avoid the need for migrate_vma_ops callbacks. Diffstat: 4 files changed, 285 insertions(+), 602 deletions(-) A git tree is also available at: git://git.infradead.org/users/hch/misc.git

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which starts revamping the migrate_vma functionality. The prime idea is to export three slightly lower level functions and thus avoid the need for migrate_vma_ops callbacks. Diffstat: 5 files changed, 281 insertions(+), 607 deletions(-) A git tree is also available at: git://git.infradead.org/users/hch/misc.git