From 5ef70c6dac645535d60bd29ff0d6813b0429a6ae Mon Sep 17 00:00:00 2001 From: acoul Date: Sun, 1 Aug 2010 16:57:24 +0000 Subject: package/compcache: use mainline modules for kernels >=2.6.33 (thank you nbd) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22458 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../040-compcache_swap_notify_core_support.patch | 30 ++++++++++++++++++++++ .../040-compcache_swap_notify_core_support.patch | 30 ++++++++++++++++++++++ 2 files changed, 60 insertions(+) create mode 100644 target/linux/generic/patches-2.6.33/040-compcache_swap_notify_core_support.patch create mode 100644 target/linux/generic/patches-2.6.34/040-compcache_swap_notify_core_support.patch (limited to 'target') diff --git a/target/linux/generic/patches-2.6.33/040-compcache_swap_notify_core_support.patch b/target/linux/generic/patches-2.6.33/040-compcache_swap_notify_core_support.patch new file mode 100644 index 000000000..0372e2065 --- /dev/null +++ b/target/linux/generic/patches-2.6.33/040-compcache_swap_notify_core_support.patch @@ -0,0 +1,30 @@ +--- a/include/linux/blkdev.h ++++ b/include/linux/blkdev.h +@@ -1301,6 +1301,8 @@ struct block_device_operations { + unsigned long long); + int (*revalidate_disk) (struct gendisk *); + int (*getgeo)(struct block_device *, struct hd_geometry *); ++ /* this callback is with swap_lock and sometimes page table lock held */ ++ void (*swap_slot_free_notify) (struct block_device *, unsigned long); + struct module *owner; + }; + +--- a/mm/swapfile.c ++++ b/mm/swapfile.c +@@ -574,6 +574,7 @@ static unsigned char swap_entry_free(struct swap_info_struct *p, + + /* free if no reference */ + if (!usage) { ++ struct gendisk *disk = p->bdev->bd_disk; + if (offset < p->lowest_bit) + p->lowest_bit = offset; + if (offset > p->highest_bit) +@@ -583,6 +584,8 @@ static unsigned char swap_entry_free(struct swap_info_struct *p, + swap_list.next = p->type; + nr_swap_pages++; + p->inuse_pages--; ++ if (disk->fops->swap_slot_free_notify) ++ disk->fops->swap_slot_free_notify(p->bdev, offset); + } + + return usage; diff --git a/target/linux/generic/patches-2.6.34/040-compcache_swap_notify_core_support.patch b/target/linux/generic/patches-2.6.34/040-compcache_swap_notify_core_support.patch new file mode 100644 index 000000000..0372e2065 --- /dev/null +++ b/target/linux/generic/patches-2.6.34/040-compcache_swap_notify_core_support.patch @@ -0,0 +1,30 @@ +--- a/include/linux/blkdev.h ++++ b/include/linux/blkdev.h +@@ -1301,6 +1301,8 @@ struct block_device_operations { + unsigned long long); + int (*revalidate_disk) (struct gendisk *); + int (*getgeo)(struct block_device *, struct hd_geometry *); ++ /* this callback is with swap_lock and sometimes page table lock held */ ++ void (*swap_slot_free_notify) (struct block_device *, unsigned long); + struct module *owner; + }; + +--- a/mm/swapfile.c ++++ b/mm/swapfile.c +@@ -574,6 +574,7 @@ static unsigned char swap_entry_free(struct swap_info_struct *p, + + /* free if no reference */ + if (!usage) { ++ struct gendisk *disk = p->bdev->bd_disk; + if (offset < p->lowest_bit) + p->lowest_bit = offset; + if (offset > p->highest_bit) +@@ -583,6 +584,8 @@ static unsigned char swap_entry_free(struct swap_info_struct *p, + swap_list.next = p->type; + nr_swap_pages++; + p->inuse_pages--; ++ if (disk->fops->swap_slot_free_notify) ++ disk->fops->swap_slot_free_notify(p->bdev, offset); + } + + return usage; -- cgit v1.2.3