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authorMichael I. Bushnell <mib@gnu.org>1994-01-17 21:54:12 +0000
committerMichael I. Bushnell <mib@gnu.org>1994-01-17 21:54:12 +0000
commit687323cbf653eaf8de387f99e45494b283d1c816 (patch)
treed652d1d4e739b3c7980206879ac4bdd93354b980 /libpager
parent29d644ae18cca946e5b9e1e2c61a79effeffb625 (diff)
Formerly mark-error.c.~2~
Diffstat (limited to 'libpager')
-rw-r--r--libpager/mark-error.c50
1 files changed, 42 insertions, 8 deletions
diff --git a/libpager/mark-error.c b/libpager/mark-error.c
index 1463035c..513ab5d9 100644
--- a/libpager/mark-error.c
+++ b/libpager/mark-error.c
@@ -21,10 +21,10 @@
requests write access, return the error to the kernel. (This is
screwy because of the rules associated with m_o_lock_request.) */
void
-mark_next_request_error(struct pager *p,
- int offset,
- int length,
- error_t error)
+_pager_mark_next_request_error(struct pager *p,
+ vm_address_t offset,
+ vm_size_t length,
+ error_t error)
{
int page_error;
char *p;
@@ -60,10 +60,10 @@ mark_next_request_error(struct pager *p,
routines can find out. (This is only necessary because the
XP interface is not completely implemented in the kernel.) */
void
-mark_object_error(struct pager *p,
- int offset,
- int length,
- error_t error)
+_pager_mark_object_error(struct pager *p,
+ vm_address_t offset,
+ vm_size_t length,
+ error_t error)
{
int page_error = 0;
char *p;
@@ -94,3 +94,37 @@ mark_object_error(struct pager *p,
*p = SET_PM_ERROR (*p, page_error);
}
+/* Tell us what the error (set with mark_object_error) for
+ pager P is on page ADDR. */
+error_t
+pager_get_error (struct pager *p,
+ vm_address_t addr)
+{
+ error_t err;
+
+ mutex_lock (&p->p_interlock);
+ pagemap_resize (p, addr);
+
+ switch (PM_ERROR (addr / __vm_page_size))
+ {
+ case PAGE_NOERR:
+ err = 0;
+ break;
+
+ case PAGE_ENOSPC:
+ err = ENOSPC;
+ break;
+
+ default:
+ case PAGE_EIO:
+ err = EIO;
+ break;
+
+ case PAGE_EDQUOT:
+ err = EDQUOT;
+ break;
+ }
+ mutex_unlock (&p->p_interlock);
+ return err;
+}
+