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2005-03-09 Marcus Brinkmann <marcus@flubber>
* pager.c: Include <sys/stat.h>.
(pager_clear_user_data): Set the S_IMMAP0 flag in the node's stat
mode.
(diskfs_get_filemap): Clear the S_IMMAP0 flag in the node's stat
mode after creating the pager.
* inode.c (read_node): Set the S_IMMAP0 flag in the node's stat
mode.
--- ext2fs/inode.c 2005-08-30 17:08:51.000000000 +0200
+++ ext2fs/inode.c.new 2005-08-30 17:09:16.000000000 +0200
@@ -309,7 +309,7 @@
if (S_ISREG (st->st_mode) || S_ISDIR (st->st_mode)
|| (S_ISLNK (st->st_mode) && st->st_blocks))
np->allocsize = round_block (np->dn_stat.st_size);
- else
+ else {
/* Allocsize should be zero for anything except directories, files, and
long symlinks. These are the only things allowed to have any blocks
allocated as well, although st_size may be zero for any type (cases
@@ -317,6 +317,11 @@
linux, some devices). */
np->allocsize = 0;
+#ifdef S_IMMAP0
+ /* We start out with no map users. */
+ st->st_mode |= S_IMMAP0;
+#endif
+ }
return 0;
}
--- ext2fs/pager.c 2005-08-30 17:08:51.000000000 +0200
+++ ext2fs/pager.c.new 2005-08-30 17:09:17.000000000 +0200
@@ -21,6 +21,7 @@
#include <unistd.h>
#include <string.h>
#include <errno.h>
+#include <sys/stat.h>
#include <hurd/store.h>
#include "ext2fs.h"
@@ -799,6 +800,9 @@
if (upi->type == FILE_DATA)
{
struct pager *pager;
+#ifdef S_IMMAP0
+ struct node *np;
+#endif
spin_lock (&node_to_page_lock);
pager = upi->node->dn->pager;
@@ -806,6 +810,13 @@
upi->node->dn->pager = 0;
spin_unlock (&node_to_page_lock);
+#ifdef S_IMMAP0
+ np = upi->node;
+ mutex_lock (&np->lock);
+ np->dn_stat.st_mode |= S_IMMAP0;
+ mutex_unlock (&np->lock);
+#endif
+
diskfs_nrele_light (upi->node);
}
@@ -1251,6 +1262,10 @@
return MACH_PORT_NULL;
}
+#ifdef S_IMMAP0
+ node->dn_stat.st_mode &= ~S_IMMAP0;
+#endif
+
right = pager_get_port (node->dn->pager);
ports_port_deref (node->dn->pager);
}
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