new file mode 100644
@@ -0,0 +1,62 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+/*
+ * Defines and function declarations for lowmem mode check.
+ */
+#ifndef __BTRFS_CHECK_LOWMEM_H__
+#define __BTRFS_CHECK_LOWMEM_H__
+
+#define ROOT_DIR_ERROR (1<<1) /* bad ROOT_DIR */
+#define DIR_ITEM_MISSING (1<<2) /* DIR_ITEM not found */
+#define DIR_ITEM_MISMATCH (1<<3) /* DIR_ITEM found but not match */
+#define INODE_REF_MISSING (1<<4) /* INODE_REF/INODE_EXTREF not found */
+#define INODE_ITEM_MISSING (1<<5) /* INODE_ITEM not found */
+#define INODE_ITEM_MISMATCH (1<<6) /* INODE_ITEM found but not match */
+#define FILE_EXTENT_ERROR (1<<7) /* bad FILE_EXTENT */
+#define ODD_CSUM_ITEM (1<<8) /* CSUM_ITEM error */
+#define CSUM_ITEM_MISSING (1<<9) /* CSUM_ITEM not found */
+#define LINK_COUNT_ERROR (1<<10) /* INODE_ITEM nlink count error */
+#define NBYTES_ERROR (1<<11) /* INODE_ITEM nbytes count error */
+#define ISIZE_ERROR (1<<12) /* INODE_ITEM size count error */
+#define ORPHAN_ITEM (1<<13) /* INODE_ITEM no reference */
+#define NO_INODE_ITEM (1<<14) /* no inode_item */
+#define LAST_ITEM (1<<15) /* Complete this tree traversal */
+#define ROOT_REF_MISSING (1<<16) /* ROOT_REF not found */
+#define ROOT_REF_MISMATCH (1<<17) /* ROOT_REF found but not match */
+#define DIR_INDEX_MISSING (1<<18) /* INODE_INDEX not found */
+#define DIR_INDEX_MISMATCH (1<<19) /* INODE_INDEX found but not match */
+#define DIR_COUNT_AGAIN (1<<20) /* DIR isize should be recalculated */
+#define BG_ACCOUNTING_ERROR (1<<21) /* Block group accounting error */
+
+/*
+ * Error bit for low memory mode check.
+ *
+ * Currently no caller cares about it yet. Just internal use for error
+ * classification.
+ */
+#define BACKREF_MISSING (1 << 0) /* Backref missing in extent tree */
+#define BACKREF_MISMATCH (1 << 1) /* Backref exists but does not match */
+#define BYTES_UNALIGNED (1 << 2) /* Some bytes are not aligned */
+#define REFERENCER_MISSING (1 << 3) /* Referencer not found */
+#define REFERENCER_MISMATCH (1 << 4) /* Referenceer found but does not match */
+#define CROSSING_STRIPE_BOUNDARY (1 << 4) /* For kernel scrub workaround */
+#define ITEM_SIZE_MISMATCH (1 << 5) /* Bad item size */
+#define UNKNOWN_TYPE (1 << 6) /* Unknown type */
+#define ACCOUNTING_MISMATCH (1 << 7) /* Used space accounting error */
+#define CHUNK_TYPE_MISMATCH (1 << 8)
+
+#endif
@@ -44,6 +44,7 @@
#include "hash.h"
#include "help.h"
#include "check/original.h"
+#include "check/lowmem.h"
enum task_position {
TASK_EXTENTS,
@@ -85,28 +86,6 @@ enum btrfs_check_mode {
static enum btrfs_check_mode check_mode = CHECK_MODE_DEFAULT;
-#define ROOT_DIR_ERROR (1<<1) /* bad ROOT_DIR */
-#define DIR_ITEM_MISSING (1<<2) /* DIR_ITEM not found */
-#define DIR_ITEM_MISMATCH (1<<3) /* DIR_ITEM found but not match */
-#define INODE_REF_MISSING (1<<4) /* INODE_REF/INODE_EXTREF not found */
-#define INODE_ITEM_MISSING (1<<5) /* INODE_ITEM not found */
-#define INODE_ITEM_MISMATCH (1<<6) /* INODE_ITEM found but not match */
-#define FILE_EXTENT_ERROR (1<<7) /* bad FILE_EXTENT */
-#define ODD_CSUM_ITEM (1<<8) /* CSUM_ITEM error */
-#define CSUM_ITEM_MISSING (1<<9) /* CSUM_ITEM not found */
-#define LINK_COUNT_ERROR (1<<10) /* INODE_ITEM nlink count error */
-#define NBYTES_ERROR (1<<11) /* INODE_ITEM nbytes count error */
-#define ISIZE_ERROR (1<<12) /* INODE_ITEM size count error */
-#define ORPHAN_ITEM (1<<13) /* INODE_ITEM no reference */
-#define NO_INODE_ITEM (1<<14) /* no inode_item */
-#define LAST_ITEM (1<<15) /* Complete this tree traversal */
-#define ROOT_REF_MISSING (1<<16) /* ROOT_REF not found */
-#define ROOT_REF_MISMATCH (1<<17) /* ROOT_REF found but not match */
-#define DIR_INDEX_MISSING (1<<18) /* INODE_INDEX not found */
-#define DIR_INDEX_MISMATCH (1<<19) /* INODE_INDEX found but not match */
-#define DIR_COUNT_AGAIN (1<<20) /* DIR isize should be recalculated */
-#define BG_ACCOUNTING_ERROR (1<<21) /* Block group accounting error */
-
static int compare_data_backref(struct rb_node *node1, struct rb_node *node2)
{
struct extent_backref *ext1 = rb_node_to_extent_backref(node1);
@@ -193,22 +172,6 @@ static int compare_extent_backref(struct rb_node *node1, struct rb_node *node2)
return compare_tree_backref(node1, node2);
}
-/*
- * Error bit for low memory mode check.
- *
- * Currently no caller cares about it yet. Just internal use for error
- * classification.
- */
-#define BACKREF_MISSING (1 << 0) /* Backref missing in extent tree */
-#define BACKREF_MISMATCH (1 << 1) /* Backref exists but does not match */
-#define BYTES_UNALIGNED (1 << 2) /* Some bytes are not aligned */
-#define REFERENCER_MISSING (1 << 3) /* Referencer not found */
-#define REFERENCER_MISMATCH (1 << 4) /* Referenceer found but does not match */
-#define CROSSING_STRIPE_BOUNDARY (1 << 4) /* For kernel scrub workaround */
-#define ITEM_SIZE_MISMATCH (1 << 5) /* Bad item size */
-#define UNKNOWN_TYPE (1 << 6) /* Unknown type */
-#define ACCOUNTING_MISMATCH (1 << 7) /* Used space accounting error */
-#define CHUNK_TYPE_MISMATCH (1 << 8)
static void *print_status_check(void *p)
{
Unlike original mode, lowmem mode mostly uses normal tree operations, so no structure definitions, only a lot of random error bits. Signed-off-by: Qu Wenruo <wqu@suse.com> --- check/lowmem.h | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ check/main.c | 39 +----------------------------------- 2 files changed, 63 insertions(+), 38 deletions(-) create mode 100644 check/lowmem.h