feat: IO polling for file descriptor

[lunaix-os.git] / lunaix-os / arch / i386 / mm / pfault.c

diff --git a/lunaix-os/arch/i386/mm/pfault.c b/lunaix-os/arch/i386/mm/pfault.c
index 2533d0bac8dc1829f6361ae7caa5428e9bd1e495..848f215c359f3c75d851c1ae5a29e092bc707fd6 100644 (file)
--- a/lunaix-os/arch/i386/mm/pfault.c
+++ b/lunaix-os/arch/i386/mm/pfault.c
@@ -12,6 +12,8 @@
 
 #include <klibc/string.h>
 
 
 #include <klibc/string.h>
 

+LOG_MODULE("pf")
+

 static u32_t
 get_ptattr(struct mm_region* vmr)
 {
 static u32_t
 get_ptattr(struct mm_region* vmr)
 {


@@ -25,15 +27,6 @@ get_ptattr(struct mm_region* vmr)
     return ptattr & 0xfff;
 }
 
     return ptattr & 0xfff;
 }
 

-static void
-kprintf(const char* fmt, ...)
-{
-    va_list args;
-    va_start(args, fmt);
-    __kprintf("PFAULT", fmt, args);
-    va_end(args);
-}
-

 #define COW_MASK (REGION_RSHARED | REGION_READ | REGION_WRITE)
 
 extern void
 #define COW_MASK (REGION_RSHARED | REGION_READ | REGION_WRITE)
 
 extern void


@@ -67,10 +60,10 @@ intr_routine_page_fault(const isr_param* param)
     if (PG_IS_PRESENT(*pte)) {
         if (((errcode ^ mapping.flags) & PG_ALLOW_USER)) {
             // invalid access
     if (PG_IS_PRESENT(*pte)) {
         if (((errcode ^ mapping.flags) & PG_ALLOW_USER)) {
             // invalid access

-            kprintf(KDEBUG "invalid user access. (%p->%p, attr:0x%x)",
-                    mapping.va,
-                    mapping.pa,
-                    mapping.flags);
+            DEBUG("invalid user access. (%p->%p, attr:0x%x)",
+                  mapping.va,
+                  mapping.pa,
+                  mapping.flags);

             goto segv_term;
         }
         if ((hit_region->attr & COW_MASK) == COW_MASK) {
             goto segv_term;
         }
         if ((hit_region->attr & COW_MASK) == COW_MASK) {


@@ -126,14 +119,10 @@ intr_routine_page_fault(const isr_param* param)
 
         memset((void*)ptr, 0, PG_SIZE);
 
 
         memset((void*)ptr, 0, PG_SIZE);
 

-        int errno = 0;
-        if (mseg_off < hit_region->flen) {
-            errno =
-              file->ops->read_page(file->inode, (void*)ptr, PG_SIZE, mfile_off);
-        }
+        int errno = file->ops->read_page(file->inode, (void*)ptr, mfile_off);

 
         if (errno < 0) {
 
         if (errno < 0) {

-            kprintf(KERROR "fail to populate page (%d)", errno);
+            ERROR("fail to populate page (%d)", errno);

             goto segv_term;
         }
 
             goto segv_term;
         }
 


@@ -148,15 +137,15 @@ intr_routine_page_fault(const isr_param* param)
         ;
 
 oom:
         ;
 
 oom:

-    kprintf(KERROR "out of memory");
+    ERROR("out of memory");

 
 segv_term:
 
 segv_term:

-    kprintf(KERROR "(pid: %d) Segmentation fault on %p (%p:%p,e=0x%x)",
-            __current->pid,
-            ptr,
-            param->execp->cs,
-            param->execp->eip,
-            param->execp->err_code);
+    ERROR("(pid: %d) Segmentation fault on %p (%p:%p,e=0x%x)",
+          __current->pid,
+          ptr,
+          param->execp->cs,
+          param->execp->eip,
+          param->execp->err_code);

 
     sigset_add(__current->sigctx.sig_pending, _SIGSEGV);
 
 
     sigset_add(__current->sigctx.sig_pending, _SIGSEGV);