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authorThomas Bushnell <thomas@gnu.org>2000-07-25 19:40:27 +0000
committerThomas Bushnell <thomas@gnu.org>2000-07-25 19:40:27 +0000
commit2f7e8f040f18b7f9bce6879d4b077094aa7d01c0 (patch)
tree80be9465da90cda7839b49574a3c232880b8fe49 /libpager/priv.h
parent0e0bcad3e157579dbeafec933ac6ccbc00a515a3 (diff)
2000-07-25 Thomas Bushnell, BSG <tb@mit.edu>
* priv.h (PM_WRITEWAIT): New pagemap bit. * data-return.c (_pager_do_write_request): Don't proceed with a pageout if one is already in progress. Once we finish, wake up any potential PM_WRITEWAIT waiters. * priv.h (PM_INIT): Provide value again. * data-return.c (_pager_do_write_request): Track PM_INIT again. * priv.h (struct pager): Make pagemap consist of 16-bit elements instead of only 8 bits. * data-request.c (_pager_seqnos_memory_object_data_request): Make PM_ENTRY a short pointer. * data-return.c (_pager_do_write_request): Make PM_ENTRIES a short pointer. * lock-object.c (_pager_lock_object): Make PM_ENTRIES a short pointer. * mark-error.c (_pager_mark_next_request_error): Make P a short pointer. (_pager_mark_object_error): Likewise. * offer-page.c (pager_offer_page): Make PM_ENTRY a short pointer. * object-terminate.c (_pager_free_structure): Interpret pagemapsize correctly. * pagemap.c (_pager_pagemap_resize): Likewise.
Diffstat (limited to 'libpager/priv.h')
-rw-r--r--libpager/priv.h17
1 files changed, 9 insertions, 8 deletions
diff --git a/libpager/priv.h b/libpager/priv.h
index 0232e3e8..80afff1b 100644
--- a/libpager/priv.h
+++ b/libpager/priv.h
@@ -1,5 +1,5 @@
/* Private data for pager library.
- Copyright (C) 1994,95,96,97,99 Free Software Foundation, Inc.
+ Copyright (C) 1994,95,96,97,99, 2000 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
@@ -65,8 +65,8 @@ struct pager
struct pending_init *init_head, *init_tail;
#endif
- char *pagemap;
- int pagemapsize;
+ short *pagemap;
+ int pagemapsize; /* number of elements in PAGEMAP */
};
struct lock_request
@@ -108,11 +108,12 @@ extern int _pager_page_errors[];
/* Pagemap format */
/* These are binary state bits */
-/* #define PM_INIT 0x80 data has been written */
-#define PM_INCORE 0x80 /* kernel might have a copy */
-#define PM_PAGINGOUT 0x40 /* being written to disk */
-#define PM_PAGEINWAIT 0x20 /* provide data back when write done */
-#define PM_INVALID 0x10 /* data on disk is irrevocably wrong */
+#define PM_WRITEWAIT 0x0200 /* queue wakeup once write is done */
+#define PM_INIT 0x0100 /* data has been written */
+#define PM_INCORE 0x0080 /* kernel might have a copy */
+#define PM_PAGINGOUT 0x0040 /* being written to disk */
+#define PM_PAGEINWAIT 0x0020 /* provide data back when write done */
+#define PM_INVALID 0x0010 /* data on disk is irrevocably wrong */
/* These take values of enum page_errors */