search for: pageswapcach

...dable(str */ if (PageDirty(page) || PageReserved(page) || PageWriteback(page) || PageLocked(page) || PagePrivate(page) || PageDiscarded(page) || - !PageUptodate(page) || !PageLRU(page) || PageAnon(page)) + !PageUptodate(page) || !PageLRU(page) || + (PageAnon(page) && !PageSwapCache(page))) return 0; /* @@ -149,15 +151,21 @@ static void __page_discard(struct page * } spin_unlock_irq(&zone->lru_lock); - /* We can't handle swap cache pages (yet). */ - BUG_ON(PageSwapCache(page)); - - /* Remove page from page cache. */ + /* Remove page from page cache/swa...

...dable(str */ if (PageDirty(page) || PageReserved(page) || PageWriteback(page) || PageLocked(page) || PagePrivate(page) || PageDiscarded(page) || - !PageUptodate(page) || !PageLRU(page) || PageAnon(page)) + !PageUptodate(page) || !PageLRU(page) || + (PageAnon(page) && !PageSwapCache(page))) return 0; /* @@ -149,15 +151,21 @@ static void __page_discard(struct page * } spin_unlock_irq(&zone->lru_lock); - /* We can't handle swap cache pages (yet). */ - BUG_ON(PageSwapCache(page)); - - /* Remove page from page cache. */ + /* Remove page from page cache/swa...

...page_tail); + pin_count = 2; + } else { + clear_compound_head(page_tail); + pin_count = 1; + } /* Finally unfreeze refcount. Additional reference from page cache. */ - page_ref_unfreeze(page_tail, 1 + (!PageAnon(head) || + page_ref_unfreeze(page_tail, pin_count + (!PageAnon(head) || PageSwapCache(head))); if (page_is_young(head)) @@ -2419,11 +2441,12 @@ static void __split_huge_page_tail(struct page *head, int tail, * pages to show after the currently processed elements - e.g. * migrate_pages */ - lru_add_page_tail(head, page_tail, lruvec, list); + if (remap) + lru_add_page_t...

...pace *end; struct dentry *dentry; int fl; struct filepage * temp; struct filepage *pos; for (pfn = 0; pfn < num_physpages; pfn++) { struct page *page; if (!pfn_valid(pfn)) continue; page = pfn_to_page(pfn); if((page->mapping!=NULL) && (!PageAnon(page)) && (!PageSwapCache(page))) { end = page->mapping; if(end->host==NULL) { <- without this line, no hangs, but the module returns wrong data to me... printk(KERN_INFO "Cool... found an valid inode \n"); } } } return 0; } Thanks in advance. Att. Artur Baruchi...

...pace *end; struct dentry *dentry; int fl; struct filepage * temp; struct filepage *pos; for (pfn = 0; pfn < num_physpages; pfn++) { struct page *page; if (!pfn_valid(pfn)) continue; page = pfn_to_page(pfn); if((page->mapping!=NULL) && (!PageAnon(page)) && (!PageSwapCache(page))) { end = page->mapping; if(end->host==NULL) { <- without this line, no hangs, but the module returns wrong data to me... printk(KERN_INFO "Cool... found an valid inode \n"); } } } return 0; } Thanks in advance. Att. Artur Baruchi...

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

After way to many months here is the fifth version of the guest page hinting patches. Compared to version four a few improvements have been added: - Avoid page_host_discards() calls outside of page-states.h - The discard list is now implemented via the page_free_discarded hook and architecture specific code. - PG_state_change page flag has been replaced with architecture specficic

After way to many months here is the fifth version of the guest page hinting patches. Compared to version four a few improvements have been added: - Avoid page_host_discards() calls outside of page-states.h - The discard list is now implemented via the page_free_discarded hook and architecture specific code. - PG_state_change page flag has been replaced with architecture specficic

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

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

...RU. + */ + zone = page_zone(page); + spin_lock_irq(&zone->lru_lock); + if (PageLRU(page)) { + /* Unlink page from lru. */ + __ClearPageLRU(page); + del_page_from_lru(zone, page); + } + spin_unlock_irq(&zone->lru_lock); + + /* We can't handle swap cache pages (yet). */ + BUG_ON(PageSwapCache(page)); + + /* Remove page from page cache. */ + mapping = page->mapping; + write_lock_irq(&mapping->tree_lock); + __remove_from_page_cache_nocheck(page); + write_unlock_irq(&mapping->tree_lock); + __put_page(page); +} + +/** + * page_discard() - remove a discarded page from the...

...RU. + */ + zone = page_zone(page); + spin_lock_irq(&zone->lru_lock); + if (PageLRU(page)) { + /* Unlink page from lru. */ + __ClearPageLRU(page); + del_page_from_lru(zone, page); + } + spin_unlock_irq(&zone->lru_lock); + + /* We can't handle swap cache pages (yet). */ + BUG_ON(PageSwapCache(page)); + + /* Remove page from page cache. */ + mapping = page->mapping; + write_lock_irq(&mapping->tree_lock); + __remove_from_page_cache_nocheck(page); + write_unlock_irq(&mapping->tree_lock); + __put_page(page); +} + +/** + * page_discard() - remove a discarded page from the...

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Hi everyone, This is dm-ioband version 1.1.0 release. Dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. - Can be applied to the kernel 2.6.26-rc2-mm1. - Changes from 1.0.0 (posted on May 19, 2008): - Measures against high memory pressure. I/O requests to reclaim pages won't

Hi everyone, This is dm-ioband version 1.1.0 release. Dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. - Can be applied to the kernel 2.6.26-rc2-mm1. - Changes from 1.0.0 (posted on May 19, 2008): - Measures against high memory pressure. I/O requests to reclaim pages won't

Hi everyone, This is dm-ioband version 1.1.0 release. Dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. - Can be applied to the kernel 2.6.26-rc2-mm1. - Changes from 1.0.0 (posted on May 19, 2008): - Measures against high memory pressure. I/O requests to reclaim pages won't