packaging: release out (3.8.3)

[profile/ivi/kernel-adaptation-intel-automotive.git] / fs / jffs2 / xattr.c

diff --git a/fs/jffs2/xattr.c b/fs/jffs2/xattr.c
index b55b803..3034e97 100644 (file)
--- a/fs/jffs2/xattr.c
+++ b/fs/jffs2/xattr.c
@@ -11,6 +11,8 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#define JFFS2_XATTR_IS_CORRUPTED       1
+
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/fs.h>
@@ -153,7 +155,7 @@ static int do_verify_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_dat
                JFFS2_ERROR("node CRC failed at %#08x, read=%#08x, calc=%#08x\n",
                            offset, je32_to_cpu(rx.hdr_crc), crc);
                xd->flags |= JFFS2_XFLAGS_INVALID;
-               return -EIO;
+               return JFFS2_XATTR_IS_CORRUPTED;
        }
        totlen = PAD(sizeof(rx) + rx.name_len + 1 + je16_to_cpu(rx.value_len));
        if (je16_to_cpu(rx.magic) != JFFS2_MAGIC_BITMASK
@@ -169,7 +171,7 @@ static int do_verify_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_dat
                            je32_to_cpu(rx.xid), xd->xid,
                            je32_to_cpu(rx.version), xd->version);
                xd->flags |= JFFS2_XFLAGS_INVALID;
-               return -EIO;
+               return JFFS2_XATTR_IS_CORRUPTED;
        }
        xd->xprefix = rx.xprefix;
        xd->name_len = rx.name_len;
@@ -227,12 +229,12 @@ static int do_load_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum
        data[xd->name_len] = '\0';
        crc = crc32(0, data, length);
        if (crc != xd->data_crc) {
-               JFFS2_WARNING("node CRC failed (JFFS2_NODETYPE_XREF)"
+               JFFS2_WARNING("node CRC failed (JFFS2_NODETYPE_XATTR)"
                              " at %#08x, read: 0x%08x calculated: 0x%08x\n",
                              ref_offset(xd->node), xd->data_crc, crc);
                kfree(data);
                xd->flags |= JFFS2_XFLAGS_INVALID;
-               return -EIO;
+               return JFFS2_XATTR_IS_CORRUPTED;
        }
 
        xd->flags |= JFFS2_XFLAGS_HOT;
@@ -270,7 +272,7 @@ static int load_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *x
        if (xd->xname)
                return 0;
        if (xd->flags & JFFS2_XFLAGS_INVALID)
-               return -EIO;
+               return JFFS2_XATTR_IS_CORRUPTED;
        if (unlikely(is_xattr_datum_unchecked(c, xd)))
                rc = do_verify_xattr_datum(c, xd);
        if (!rc)
@@ -435,6 +437,8 @@ static void unrefer_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datu
  *   is called to release xattr related objects when unmounting. 
  * check_xattr_ref_inode(c, ic)
  *   is used to confirm inode does not have duplicate xattr name/value pair.
+ * jffs2_xattr_do_crccheck_inode(c, ic)
+ *   is used to force xattr data integrity check during the initial gc scan.
  * -------------------------------------------------- */
 static int verify_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref)
 {
@@ -462,7 +466,7 @@ static int verify_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref
        if (crc != je32_to_cpu(rr.node_crc)) {
                JFFS2_ERROR("node CRC failed at %#08x, read=%#08x, calc=%#08x\n",
                            offset, je32_to_cpu(rr.node_crc), crc);
-               return -EIO;
+               return JFFS2_XATTR_IS_CORRUPTED;
        }
        if (je16_to_cpu(rr.magic) != JFFS2_MAGIC_BITMASK
            || je16_to_cpu(rr.nodetype) != JFFS2_NODETYPE_XREF
@@ -472,7 +476,7 @@ static int verify_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *ref
                            offset, je16_to_cpu(rr.magic), JFFS2_MAGIC_BITMASK,
                            je16_to_cpu(rr.nodetype), JFFS2_NODETYPE_XREF,
                            je32_to_cpu(rr.totlen), PAD(sizeof(rr)));
-               return -EIO;
+               return JFFS2_XATTR_IS_CORRUPTED;
        }
        ref->ino = je32_to_cpu(rr.ino);
        ref->xid = je32_to_cpu(rr.xid);
@@ -682,6 +686,11 @@ static int check_xattr_ref_inode(struct jffs2_sb_info *c, struct jffs2_inode_cac
        return rc;
 }
 
+void jffs2_xattr_do_crccheck_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic)
+{
+       check_xattr_ref_inode(c, ic);
+}
+
 /* -------- xattr subsystem functions ---------------
  * jffs2_init_xattr_subsystem(c)
  *   is used to initialize semaphore and list_head, and some variables.