feat: kprintf now goes into dedicated pseudo-dev rather than flooding the framebuffer

[lunaix-os.git] / lunaix-os / kernel / fs / mount.c

diff --git a/lunaix-os/kernel/fs/mount.c b/lunaix-os/kernel/fs/mount.c
index c1e9784bef642dfc4302445bf2a1e0b172b0665a..97ef359f40351c22acb2f8937bc27f82cd3c37b0 100644 (file)
--- a/lunaix-os/kernel/fs/mount.c
+++ b/lunaix-os/kernel/fs/mount.c
@@ -2,8 +2,13 @@
 #include <lunaix/fs.h>
 #include <lunaix/mm/valloc.h>
 #include <lunaix/process.h>
 #include <lunaix/fs.h>
 #include <lunaix/mm/valloc.h>
 #include <lunaix/process.h>

+#include <lunaix/spike.h>
+#include <lunaix/syscall_utils.h>
+#include <lunaix/syslog.h>

 #include <lunaix/types.h>
 
 #include <lunaix/types.h>
 

+LOG_MODULE("fs")
+

 struct llist_header all_mnts = { .next = &all_mnts, .prev = &all_mnts };
 
 struct v_mount*
 struct llist_header all_mnts = { .next = &all_mnts, .prev = &all_mnts };
 
 struct v_mount*


@@ -18,12 +23,12 @@ vfs_create_mount(struct v_mount* parent, struct v_dnode* mnt_point)
     llist_append(&all_mnts, &mnt->list);
     mutex_init(&mnt->lock);
 
     llist_append(&all_mnts, &mnt->list);
     mutex_init(&mnt->lock);
 

-    mnt_mkbusy(parent);

     mnt->parent = parent;
     mnt->mnt_point = mnt_point;
     mnt->super_block = mnt_point->super_block;
 
     if (parent) {
     mnt->parent = parent;
     mnt->mnt_point = mnt_point;
     mnt->super_block = mnt_point->super_block;
 
     if (parent) {

+        mnt_mkbusy(parent);

         mutex_lock(&mnt->parent->lock);
         llist_append(&parent->submnts, &mnt->sibmnts);
         mutex_unlock(&mnt->parent->lock);
         mutex_lock(&mnt->parent->lock);
         llist_append(&parent->submnts, &mnt->sibmnts);
         mutex_unlock(&mnt->parent->lock);


@@ -84,6 +89,7 @@ mnt_chillax(struct v_mount* mnt)
 int
 vfs_mount_root(const char* fs_name, struct device* device)
 {
 int
 vfs_mount_root(const char* fs_name, struct device* device)
 {

+    extern struct v_dnode* vfs_sysroot;

     int errno = 0;
     if (vfs_sysroot->mnt && (errno = vfs_unmount_at(vfs_sysroot))) {
         return errno;
     int errno = 0;
     if (vfs_sysroot->mnt && (errno = vfs_unmount_at(vfs_sysroot))) {
         return errno;


@@ -127,7 +133,11 @@ vfs_mount_at(const char* fs_name,
              struct v_dnode* mnt_point,
              int options)
 {
              struct v_dnode* mnt_point,
              int options)
 {

-    if (mnt_point->inode && !(mnt_point->inode->itype & VFS_IFDIR)) {
+    if (device && device->dev_type != DEV_IFVOL) {
+        return ENOTBLK;
+    }
+
+    if (mnt_point->inode && (mnt_point->inode->itype & F_MFILE)) {

         return ENOTDIR;
     }
 
         return ENOTDIR;
     }
 


@@ -136,11 +146,20 @@ vfs_mount_at(const char* fs_name,
         return ENODEV;
     }
 
         return ENODEV;
     }
 

+    if (fs->types == FSTYPE_ROFS) {
+        options |= MNT_RO;
+    }
+
+    char* dev_name = "sys";

     struct v_mount* parent_mnt = mnt_point->mnt;
     struct v_superblock *sb = vfs_sb_alloc(), *old_sb = mnt_point->super_block;
     sb->dev = device;
     mnt_point->super_block = sb;
 
     struct v_mount* parent_mnt = mnt_point->mnt;
     struct v_superblock *sb = vfs_sb_alloc(), *old_sb = mnt_point->super_block;
     sb->dev = device;
     mnt_point->super_block = sb;
 

+    if (device) {
+        dev_name = device->name_val;
+    }
+

     int errno = 0;
     if (!(errno = fs->mount(sb, mnt_point))) {
         sb->fs = fs;
     int errno = 0;
     if (!(errno = fs->mount(sb, mnt_point))) {
         sb->fs = fs;


@@ -151,6 +170,8 @@ vfs_mount_at(const char* fs_name,
             goto cleanup;
         }
 
             goto cleanup;
         }
 

+        kprintf("mount: dev=%s, fs=%s, mode=%d", dev_name, fs_name, options);
+

         mnt_point->mnt->flags = options;
     } else {
         goto cleanup;
         mnt_point->mnt->flags = options;
     } else {
         goto cleanup;


@@ -159,6 +180,11 @@ vfs_mount_at(const char* fs_name,
     return errno;
 
 cleanup:
     return errno;
 
 cleanup:

+    kprintf(KERROR "mount: dev=%s, fs=%s, mode=%d, err=%d",
+            dev_name,
+            fs_name,
+            options,
+            errno);

     mnt_point->super_block = old_sb;
     vfs_sb_free(sb);
     return errno;
     mnt_point->super_block = old_sb;
     vfs_sb_free(sb);
     return errno;