diff options
Diffstat (limited to 'debian/patches-rt/0001-Split-IRQ-off-and-zone-lock-while-freeing-pages-from.patch')
| -rw-r--r-- | debian/patches-rt/0001-Split-IRQ-off-and-zone-lock-while-freeing-pages-from.patch | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/debian/patches-rt/0001-Split-IRQ-off-and-zone-lock-while-freeing-pages-from.patch b/debian/patches-rt/0001-Split-IRQ-off-and-zone-lock-while-freeing-pages-from.patch index 99315d5cf..b44757ef6 100644 --- a/debian/patches-rt/0001-Split-IRQ-off-and-zone-lock-while-freeing-pages-from.patch +++ b/debian/patches-rt/0001-Split-IRQ-off-and-zone-lock-while-freeing-pages-from.patch @@ -2,7 +2,7 @@ From: Peter Zijlstra <peterz@infradead.org> Date: Mon, 28 May 2018 15:24:20 +0200 Subject: [PATCH 1/4] Split IRQ-off and zone->lock while freeing pages from PCP list #1 -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.2/older/patches-5.2.17-rt9.tar.xz +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.4/older/patches-5.4.3-rt1.tar.xz Split the IRQ-off section while accessing the PCP list from zone->lock while freeing pages. @@ -18,7 +18,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> --- a/mm/page_alloc.c +++ b/mm/page_alloc.c -@@ -1182,7 +1182,7 @@ static inline void prefetch_buddy(struct +@@ -1243,7 +1243,7 @@ static inline void prefetch_buddy(struct } /* @@ -27,7 +27,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> * Assumes all pages on list are in same zone, and of same order. * count is the number of pages to free. * -@@ -1193,14 +1193,41 @@ static inline void prefetch_buddy(struct +@@ -1254,14 +1254,41 @@ static inline void prefetch_buddy(struct * pinned" detection logic. */ static void free_pcppages_bulk(struct zone *zone, int count, @@ -73,7 +73,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> while (count) { struct list_head *list; -@@ -1232,7 +1259,7 @@ static void free_pcppages_bulk(struct zo +@@ -1293,7 +1320,7 @@ static void free_pcppages_bulk(struct zo if (bulkfree_pcp_prepare(page)) continue; @@ -82,7 +82,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> /* * We are going to put the page back to the global -@@ -1247,26 +1274,6 @@ static void free_pcppages_bulk(struct zo +@@ -1308,26 +1335,6 @@ static void free_pcppages_bulk(struct zo prefetch_buddy(page); } while (--count && --batch_free && !list_empty(list)); } @@ -109,7 +109,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> } static void free_one_page(struct zone *zone, -@@ -2713,13 +2720,18 @@ void drain_zone_pages(struct zone *zone, +@@ -2799,13 +2806,18 @@ void drain_zone_pages(struct zone *zone, { unsigned long flags; int to_drain, batch; @@ -129,7 +129,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> } #endif -@@ -2735,14 +2747,21 @@ static void drain_pages_zone(unsigned in +@@ -2821,14 +2833,21 @@ static void drain_pages_zone(unsigned in unsigned long flags; struct per_cpu_pageset *pset; struct per_cpu_pages *pcp; @@ -153,7 +153,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> } /* -@@ -2970,7 +2989,10 @@ static void free_unref_page_commit(struc +@@ -3056,7 +3075,10 @@ static void free_unref_page_commit(struc pcp->count++; if (pcp->count >= pcp->high) { unsigned long batch = READ_ONCE(pcp->batch); |