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authorRichard Braun <rbraun@sceen.net>2013-05-03 19:56:50 +0200
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2013-09-16 01:22:20 +0200
commit0e847864cef404f555387d7fcc97f7dbe769e1e9 (patch)
treedbafbabcd1491b4840914d60358cf153beed9af8 /libdiskfs/diskfs-pager.h
parentb2e27fcee4cec98ffc39273ecfaa73aace9da2c3 (diff)
Handle notification on page eviction
If requested by the user, make libpager call pager_notify_evict when a page is flushed out by the kernel. Based on work by Ognyan Kulev. * console/pager.c (pager_notify_evict): New function. (user_pager_create): Update call to pager_create. * ext2fs/pager.c: (pager_notify_evict): New function. (create_disk_pager): Update call to diskfs_start_disk_pager. (diskfs_get_filemap): Update call to pager_create. * fatfs/pager.c: (pager_notify_evict): New function. (create_fat_pager): Update call to diskfs_start_disk_pager. (diskfs_get_filemap): Update call to pager_create. * isofs/pager.c: (pager_notify_evict): New function. (create_disk_pager): Update call to diskfs_start_disk_pager. (diskfs_get_filemap): Update call to pager_create. * libdiskfs/disk-pager.c (diskfs_start_disk_pager): Update definition and call to pager_create. * libdiskfs/diskfs-pager.h (diskfs_start_disk_pager): Update declaration. * libpager/data-request.c (_pager_seqnos_memory_object_data_request): Take pager's `notify_on_evict' member into account when calling memory_object_data_supply. * libpager/data-return.c (_pager_do_write_request): Handle user notification on page flush. * libpager/pager-create.c (pager_create): Update definition and set pager's `notify_on_evict' member. * libpager/pager.h (pager_create): Update declaration. (pager_notify_evict): New declaration. * libpager/priv.h (struct pager): New `notify_on_evict' member. * storeio/pager.c: (pager_notify_evict): New function. (dev_get_memory_object): Update call to pager_create. * tmpfs/pager-stubs.c (pager_notify_evict): New function. * ufs/pager.c (pager_notify_evict): New function. (create_disk_pager): Update call to diskfs_start_disk_pager. (diskfs_get_filemap): Update call to pager_create.
Diffstat (limited to 'libdiskfs/diskfs-pager.h')
-rw-r--r--libdiskfs/diskfs-pager.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/libdiskfs/diskfs-pager.h b/libdiskfs/diskfs-pager.h
index bd0a050c..a253069b 100644
--- a/libdiskfs/diskfs-pager.h
+++ b/libdiskfs/diskfs-pager.h
@@ -35,7 +35,8 @@ extern __thread struct disk_image_user *diskfs_exception_diu;
mapped is returned in IMAGE. INFO, PAGER_BUCKET, & MAY_CACHE are passed
to `pager_create'. */
extern void diskfs_start_disk_pager (struct user_pager_info *info,
- struct port_bucket *pager_bucket, int may_cache,
+ struct port_bucket *pager_bucket,
+ int may_cache, int notify_on_evict,
size_t size, void **image);
extern struct pager *diskfs_disk_pager;