Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.

2025-08-05 07:02:56 +00:00 · 2017-10-03 07:45:34 +00:00 · 2017-10-03 07:45:34 +00:00 · c2c66aff7d
commit c2c66aff7d
parent b94e2d8ca0
24198 changed files with 0 additions and 37285 deletions
--- a/drivers/filesystems/ext2/src/ext3/recover.c
+++ b/drivers/filesystems/ext2/src/ext3/recover.c
@ -0,0 +1,172 @@
+/*
+ * COPYRIGHT:        See COPYRIGHT.TXT
+ * PROJECT:          Ext2 File System Driver for WinNT/2K/XP
+ * FILE:             recover.c
+ * PROGRAMMER:       Matt Wu <mattwu@163.com>
+ * HOMEPAGE:         http://www.ext2fsd.com
+ * UPDATE HISTORY:
+ */
+
+/* INCLUDES *****************************************************************/
+
+#include <ext2fs.h>
+#include <linux/jbd.h>
+#include <linux/ext3_fs.h>
+
+/* GLOBALS ***************************************************************/
+
+extern PEXT2_GLOBAL Ext2Global;
+
+/* DEFINITIONS *************************************************************/
+
+#ifdef ALLOC_PRAGMA
+#pragma alloc_text(PAGE, Ext2LoadInternalJournal)
+#pragma alloc_text(PAGE, Ext2CheckJournal)
+#pragma alloc_text(PAGE, Ext2RecoverJournal)
+#endif
+
+PEXT2_MCB
+Ext2LoadInternalJournal(
+    PEXT2_VCB         Vcb,
+    ULONG             jNo
+)
+{
+    PEXT2_MCB   Jcb = NULL;
+
+    Jcb = Ext2AllocateMcb(Vcb, NULL, NULL, 0);
+    if (!Jcb) {
+        goto errorout;
+    }
+
+    Jcb->Inode.i_ino = jNo;
+    Jcb->Inode.i_sb = &Vcb->sb;
+    if (!Ext2LoadInode(Vcb, &Jcb->Inode)) {
+        DbgBreak();
+        Ext2FreeMcb(Vcb, Jcb);
+        goto errorout;
+    }
+
+errorout:
+
+    return Jcb;
+}
+
+INT
+Ext2CheckJournal(
+    PEXT2_VCB          Vcb,
+    PULONG             jNo
+)
+{
+    struct ext3_super_block* esb = NULL;
+
+    /* check ext3 super block */
+    esb = (struct ext3_super_block *)Vcb->SuperBlock;
+    if (IsFlagOn(esb->s_feature_incompat,
+                 EXT3_FEATURE_INCOMPAT_RECOVER)) {
+        SetLongFlag(Vcb->Flags, VCB_JOURNAL_RECOVER);
+    }
+
+    /* must stop here if volume is read-only */
+    if (IsVcbReadOnly(Vcb)) {
+        goto errorout;
+    }
+
+    /* journal is external ? */
+    if (esb->s_journal_inum == 0) {
+        goto errorout;
+    }
+
+    /* oops: volume is corrupted */
+    if (esb->s_journal_dev) {
+        goto errorout;
+    }
+
+    /* return the journal inode number */
+    *jNo = esb->s_journal_inum;
+
+    return TRUE;
+
+errorout:
+
+    return FALSE;
+}
+
+INT
+Ext2RecoverJournal(
+    PEXT2_IRP_CONTEXT  IrpContext,
+    PEXT2_VCB          Vcb
+)
+{
+    INT rc = 0;
+    ULONG                   jNo = 0;
+    PEXT2_MCB               jcb = NULL;
+    struct block_device *   bd = &Vcb->bd;
+#ifndef __REACTOS__
+    struct super_block *    sb = &Vcb->sb;
+#endif
+    struct inode *          ji = NULL;
+    journal_t *             journal = NULL;
+    struct ext3_super_block *esb;
+
+    /* check journal inode number */
+    if (!Ext2CheckJournal(Vcb, &jNo)) {
+        return -1;
+    }
+
+    /* allocate journal Mcb */
+    jcb =  Ext2LoadInternalJournal(Vcb, jNo);
+    if (!jcb) {
+        rc = -6;
+        goto errorout;
+    }
+
+    /* allocate journal inode */
+    ji = &jcb->Inode;
+
+    /* initialize journal file from inode */
+    journal = journal_init_inode(ji);
+
+    /* initialzation succeeds ? */
+    if (!journal) {
+        iput(ji);
+        rc = -8;
+        goto errorout;
+    }
+
+    /* start journal recovery */
+    rc = journal_load(journal);
+    if (0 != rc) {
+        rc = -9;
+        DbgPrint("Ext2Fsd: recover_journal: failed "
+                 "to recover journal data.\n");
+    }
+
+    /* reload super_block and group_description */
+    Ext2RefreshSuper(IrpContext, Vcb);
+    Ext2RefreshGroup(IrpContext, Vcb);
+
+    /* wipe journal data and clear recover flag in sb */
+    if (rc == 0) {
+        journal_wipe_recovery(journal);
+        ClearLongFlag(
+            Vcb->SuperBlock->s_feature_incompat,
+            EXT3_FEATURE_INCOMPAT_RECOVER );
+        Ext2SaveSuper(IrpContext, Vcb);
+        sync_blockdev(bd);
+        ClearLongFlag(Vcb->Flags, VCB_JOURNAL_RECOVER);
+    }
+
+errorout:
+
+    /* destroy journal structure */
+    if (journal) {
+        journal_destroy(journal);
+    }
+
+    /* destory journal Mcb */
+    if (jcb) {
+        Ext2FreeMcb(Vcb, jcb);
+    }
+
+    return rc;
+}