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package/compcache: use mainline modules for kernels >=2.6.33 (thank you nbd)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22458 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
acoul
2010-08-01 16:57:24 +00:00
parent 52159878ce
commit 5ef70c6dac
5 changed files with 147 additions and 11 deletions
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30
target/linux/generic/patches-2.6.33/040-compcache_swap_notify_core_support.patch Normal file
View File

@@ -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;

30
target/linux/generic/patches-2.6.34/040-compcache_swap_notify_core_support.patch Normal file
View File

@@ -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;