diff options
Diffstat (limited to 'fs/jffs2/xattr.c')
| -rw-r--r-- | fs/jffs2/xattr.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/fs/jffs2/xattr.c b/fs/jffs2/xattr.c index b55b803eddc..3034e970eb9 100644 --- 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. |