[PATCH 24/21] xfs: buffer type overruns blf_flags field

Dave Chinner
2013-03-13T01:34:25Z

From: Dave Chinner <dchinner@redhat.com>

The buffer type passed to log recvoery in the buffer log item
overruns the blf_flags field. I had assumed that flags field was a
32 bit value, and it turns out it is a unsigned short. Therefore
having 19 flags doesn't really work.

Convert the buffer type field to numeric value, and use the top 5
bits of the flags field for it. We currently have 17 types of
buffers, so using 5 bits gives us plenty of room for expansion in
future....

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---

Found by sparse, indicating a value too large being placed into a
16 bit word.

fs/xfs/xfs_alloc.c | 4 +--
fs/xfs/xfs_attr_leaf.c | 6 ++--
fs/xfs/xfs_bmap.c | 2 +-
fs/xfs/xfs_btree.c | 8 ++---
fs/xfs/xfs_buf_item.h | 90 +++++++++++++++++++++++++---------------------
fs/xfs/xfs_da_btree.c | 12 +++----
fs/xfs/xfs_dir2_block.c | 4 +--
fs/xfs/xfs_dir2_data.c | 4 +--
fs/xfs/xfs_dir2_leaf.c | 12 +++----
fs/xfs/xfs_dir2_node.c | 10 +++---
fs/xfs/xfs_ialloc.c | 2 +-
fs/xfs/xfs_log_recover.c | 40 +++++++++++----------
fs/xfs/xfs_mount.c | 2 +-
fs/xfs/xfs_trans_buf.c | 42 +++++++++++++++-------
14 files changed, 132 insertions(+), 106 deletions(-)

diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 40d3d57..5673bcf 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -2099,7 +2099,7 @@ xfs_alloc_log_agf(

trace_xfs_agf(tp->t_mountp, XFS_BUF_TO_AGF(bp), fields, _RET_IP_);

- xfs_trans_buf_set_type(tp, bp, XFS_BLF_AGF_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_AGF_BUF);

xfs_btree_offsets(fields, offsets, XFS_AGF_NUM_BITS, &first, &last);
xfs_trans_log_buf(tp, bp, (uint)first, (uint)last);
@@ -2179,7 +2179,7 @@ xfs_alloc_put_freelist(

xfs_alloc_log_agf(tp, agbp, logflags);

- xfs_trans_buf_set_type(tp, agflbp, XFS_BLF_AGFL_BUF);
+ xfs_trans_buf_set_type(tp, agflbp, XFS_BLFT_AGFL_BUF);
xfs_trans_log_buf(tp, agflbp, startoff,
startoff + sizeof(xfs_agblock_t) - 1);
return 0;
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index 7feaf3c..5e708dc 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -276,7 +276,7 @@ xfs_attr3_leaf_read(
err = xfs_da_read_buf(tp, dp, bno, mappedbno, bpp,
XFS_ATTR_FORK, &xfs_attr3_leaf_buf_ops);
if (!err && tp)
- xfs_trans_buf_set_type(tp, *bpp, XFS_BLF_ATTR_LEAF_BUF);
+ xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_ATTR_LEAF_BUF);
return err;
}

@@ -1083,7 +1083,7 @@ xfs_attr3_leaf_to_node(
goto out;

/* copy leaf to new buffer, update identifiers */
- xfs_trans_buf_set_type(args->trans, bp2, XFS_BLF_ATTR_LEAF_BUF);
+ xfs_trans_buf_set_type(args->trans, bp2, XFS_BLFT_ATTR_LEAF_BUF);
bp2->b_ops = bp1->b_ops;
memcpy(bp2->b_addr, bp1->b_addr, XFS_LBSIZE(mp));
if (xfs_sb_version_hascrc(&mp->m_sb)) {
@@ -1146,7 +1146,7 @@ xfs_attr3_leaf_create(
if (error)
return error;
bp->b_ops = &xfs_attr3_leaf_buf_ops;
- xfs_trans_buf_set_type(args->trans, bp, XFS_BLF_ATTR_LEAF_BUF);
+ xfs_trans_buf_set_type(args->trans, bp, XFS_BLFT_ATTR_LEAF_BUF);
leaf = bp->b_addr;
memset(leaf, 0, XFS_LBSIZE(mp));

diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 2844724..8904284 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -1338,7 +1338,7 @@ xfs_bmap_local_to_extents_init_fn(
ASSERT(0);
bp->b_ops = &xfs_bmbt_buf_ops;
memcpy(bp->b_addr, ifp->if_u1.if_data, ifp->if_bytes);
- xfs_trans_buf_set_type(tp, bp, XFS_BLF_BTREE_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_BTREE_BUF);
}

/*
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index ec77036..8804b8a 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -1282,7 +1282,7 @@ xfs_btree_log_keys(
XFS_BTREE_TRACE_ARGBII(cur, bp, first, last);

if (bp) {
- xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLF_BTREE_BUF);
+ xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLFT_BTREE_BUF);
xfs_trans_log_buf(cur->bc_tp, bp,
xfs_btree_key_offset(cur, first),
xfs_btree_key_offset(cur, last + 1) - 1);
@@ -1307,7 +1307,7 @@ xfs_btree_log_recs(
XFS_BTREE_TRACE_CURSOR(cur, XBT_ENTRY);
XFS_BTREE_TRACE_ARGBII(cur, bp, first, last);

- xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLF_BTREE_BUF);
+ xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLFT_BTREE_BUF);
xfs_trans_log_buf(cur->bc_tp, bp,
xfs_btree_rec_offset(cur, first),
xfs_btree_rec_offset(cur, last + 1) - 1);
@@ -1332,7 +1332,7 @@ xfs_btree_log_ptrs(
struct xfs_btree_block *block = XFS_BUF_TO_BLOCK(bp);
int level = xfs_btree_get_level(block);

- xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLF_BTREE_BUF);
+ xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLFT_BTREE_BUF);
xfs_trans_log_buf(cur->bc_tp, bp,
xfs_btree_ptr_offset(cur, first, level),
xfs_btree_ptr_offset(cur, last + 1, level) - 1);
@@ -1407,7 +1407,7 @@ xfs_btree_log_block(
(cur->bc_flags & XFS_BTREE_LONG_PTRS) ?
loffsets : soffsets,
nbits, &first, &last);
- xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLF_BTREE_BUF);
+ xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLFT_BTREE_BUF);
xfs_trans_log_buf(cur->bc_tp, bp, first, last);
} else {
xfs_trans_log_inode(cur->bc_tp, cur->bc_private.b.ip,
diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h
index ed259a1..0c8559f 100644
--- a/fs/xfs/xfs_buf_item.h
+++ b/fs/xfs/xfs_buf_item.h
@@ -39,47 +39,6 @@ extern kmem_zone_t *xfs_buf_item_zone;
#define XFS_BLF_PDQUOT_BUF (1<<3)
#define XFS_BLF_GDQUOT_BUF (1<<4)

-/*
- * all buffers now need flags to tell recovery where the magic number
- * is so that it can verify and calculate the CRCs on the buffer correctly
- * once the changes have been replayed into the buffer.
- */
-#define XFS_BLF_BTREE_BUF (1<<5)
-#define XFS_BLF_AGF_BUF (1<<6)
-#define XFS_BLF_AGFL_BUF (1<<7)
-#define XFS_BLF_AGI_BUF (1<<8)
-#define XFS_BLF_DINO_BUF (1<<9)
-#define XFS_BLF_SYMLINK_BUF (1<<10)
-#define XFS_BLF_DIR_BLOCK_BUF (1<<11)
-#define XFS_BLF_DIR_DATA_BUF (1<<12)
-#define XFS_BLF_DIR_FREE_BUF (1<<13)
-#define XFS_BLF_DIR_LEAF1_BUF (1<<14)
-#define XFS_BLF_DIR_LEAFN_BUF (1<<15)
-#define XFS_BLF_DA_NODE_BUF (1<<16)
-#define XFS_BLF_ATTR_LEAF_BUF (1<<17)
-#define XFS_BLF_ATTR_RMT_BUF (1<<18)
-#define XFS_BLF_SB_BUF (1<<19)
-
-#define XFS_BLF_TYPE_MASK \
- (XFS_BLF_UDQUOT_BUF | \
- XFS_BLF_PDQUOT_BUF | \
- XFS_BLF_GDQUOT_BUF | \
- XFS_BLF_BTREE_BUF | \
- XFS_BLF_AGF_BUF | \
- XFS_BLF_AGFL_BUF | \
- XFS_BLF_AGI_BUF | \
- XFS_BLF_DINO_BUF | \
- XFS_BLF_SYMLINK_BUF | \
- XFS_BLF_DIR_BLOCK_BUF | \
- XFS_BLF_DIR_DATA_BUF | \
- XFS_BLF_DIR_FREE_BUF | \
- XFS_BLF_DIR_LEAF1_BUF | \
- XFS_BLF_DIR_LEAFN_BUF | \
- XFS_BLF_DA_NODE_BUF | \
- XFS_BLF_ATTR_LEAF_BUF | \
- XFS_BLF_ATTR_RMT_BUF | \
- XFS_BLF_SB_BUF)
-
#define XFS_BLF_CHUNK 128
#define XFS_BLF_SHIFT 7
#define BIT_TO_WORD_SHIFT 5
@@ -103,6 +62,55 @@ typedef struct xfs_buf_log_format {
} xfs_buf_log_format_t;

/*
+ * All buffers now need to tell recovery where the magic number
+ * is so that it can verify and calculate the CRCs on the buffer correctly
+ * once the changes have been replayed into the buffer.
+ *
+ * The type value is held in the upper 5 bits of the blf_flags field, which is
+ * an unsigned 16 bit field. Hence we need to shift it 11 bits up and down.
+ */
+#define XFS_BLFT_BITS 5
+#define XFS_BLFT_SHIFT 11
+#define XFS_BLFT_MASK (((1 << XFS_BLFT_BITS) - 1) << XFS_BLFT_SHIFT)
+
+enum xfs_blft {
+ XFS_BLFT_UNKNOWN_BUF = 0,
+ XFS_BLFT_UDQUOT_BUF,
+ XFS_BLFT_PDQUOT_BUF,
+ XFS_BLFT_GDQUOT_BUF,
+ XFS_BLFT_BTREE_BUF,
+ XFS_BLFT_AGF_BUF,
+ XFS_BLFT_AGFL_BUF,
+ XFS_BLFT_AGI_BUF,
+ XFS_BLFT_DINO_BUF,
+ XFS_BLFT_SYMLINK_BUF,
+ XFS_BLFT_DIR_BLOCK_BUF,
+ XFS_BLFT_DIR_DATA_BUF,
+ XFS_BLFT_DIR_FREE_BUF,
+ XFS_BLFT_DIR_LEAF1_BUF,
+ XFS_BLFT_DIR_LEAFN_BUF,
+ XFS_BLFT_DA_NODE_BUF,
+ XFS_BLFT_ATTR_LEAF_BUF,
+ XFS_BLFT_ATTR_RMT_BUF,
+ XFS_BLFT_SB_BUF,
+ XFS_BLFT_MAX_BUF = (1 << XFS_BLFT_BITS),
+};
+
+static inline void
+xfs_blft_to_flags(struct xfs_buf_log_format *blf, enum xfs_blft type)
+{
+ ASSERT(type > XFS_BLFT_UNKNOWN_BUF && type < XFS_BLFT_MAX_BUF);
+ blf->blf_flags &= ~XFS_BLFT_MASK;
+ blf->blf_flags |= ((type << XFS_BLFT_SHIFT) & XFS_BLFT_MASK);
+}
+
+static inline __uint16_t
+xfs_blft_from_flags(struct xfs_buf_log_format *blf)
+{
+ return (blf->blf_flags & XFS_BLFT_MASK) >> XFS_BLFT_SHIFT;
+}
+
+/*
* buf log item flags
*/
#define XFS_BLI_HOLD 0x01
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index a78865e..504e58f 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -312,15 +312,15 @@ xfs_da3_node_read(
switch (be16_to_cpu(info->magic)) {
case XFS_DA3_NODE_MAGIC:
case XFS_DA_NODE_MAGIC:
- type = XFS_BLF_DA_NODE_BUF;
+ type = XFS_BLFT_DA_NODE_BUF;
break;
case XFS_ATTR_LEAF_MAGIC:
case XFS_ATTR3_LEAF_MAGIC:
- type = XFS_BLF_ATTR_LEAF_BUF;
+ type = XFS_BLFT_ATTR_LEAF_BUF;
break;
case XFS_DIR2_LEAFN_MAGIC:
case XFS_DIR3_LEAFN_MAGIC:
- type = XFS_BLF_DIR_LEAFN_BUF;
+ type = XFS_BLFT_DIR_LEAFN_BUF;
break;
default:
type = 0;
@@ -361,7 +361,7 @@ xfs_da3_node_create(
if (error)
return(error);
bp->b_ops = &xfs_da3_node_buf_ops;
- xfs_trans_buf_set_type(tp, bp, XFS_BLF_DA_NODE_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DA_NODE_BUF);
node = bp->b_addr;

if (xfs_sb_version_hascrc(&mp->m_sb)) {
@@ -595,7 +595,7 @@ xfs_da3_root_split(
* we are about to copy oldroot to bp, so set up the type
* of bp while we know exactly what it will be.
*/
- xfs_trans_buf_set_type(tp, bp, XFS_BLF_DA_NODE_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DA_NODE_BUF);
} else {
struct xfs_dir3_icleaf_hdr leafhdr;
struct xfs_dir2_leaf_entry *ents;
@@ -613,7 +613,7 @@ xfs_da3_root_split(
* we are about to copy oldroot to bp, so set up the type
* of bp while we know exactly what it will be.
*/
- xfs_trans_buf_set_type(tp, bp, XFS_BLF_DIR_LEAFN_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DIR_LEAFN_BUF);
}

/*
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 58816ec..e59f5fc 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -137,7 +137,7 @@ xfs_dir3_block_read(
err = xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, bpp,
XFS_DATA_FORK, &xfs_dir3_block_buf_ops);
if (!err && tp)
- xfs_trans_buf_set_type(tp, *bpp, XFS_BLF_DIR_BLOCK_BUF);
+ xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_BLOCK_BUF);
return err;
}

@@ -151,7 +151,7 @@ xfs_dir3_block_init(
struct xfs_dir3_blk_hdr *hdr3 = bp->b_addr;

bp->b_ops = &xfs_dir3_block_buf_ops;
- xfs_trans_buf_set_type(tp, bp, XFS_BLF_DIR_BLOCK_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DIR_BLOCK_BUF);

if (xfs_sb_version_hascrc(&mp->m_sb)) {
memset(hdr3, 0, sizeof(*hdr3));
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index 5e0c711..c293023 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -306,7 +306,7 @@ xfs_dir3_data_read(
err = xfs_da_read_buf(tp, dp, bno, mapped_bno, bpp,
XFS_DATA_FORK, &xfs_dir3_data_buf_ops);
if (!err && tp)
- xfs_trans_buf_set_type(tp, *bpp, XFS_BLF_DIR_DATA_BUF);
+ xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_DATA_BUF);
return err;
}

@@ -576,7 +576,7 @@ xfs_dir3_data_init(
if (error)
return error;
bp->b_ops = &xfs_dir3_data_buf_ops;
- xfs_trans_buf_set_type(tp, bp, XFS_BLF_DIR_DATA_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DIR_DATA_BUF);

/*
* Initialize the header.
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index 9bf588c..9ba2ade 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -300,7 +300,7 @@ xfs_dir3_leaf_read(
err = xfs_da_read_buf(tp, dp, fbno, mappedbno, bpp,
XFS_DATA_FORK, &xfs_dir3_leaf1_buf_ops);
if (!err && tp)
- xfs_trans_buf_set_type(tp, *bpp, XFS_BLF_DIR_LEAF1_BUF);
+ xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_LEAF1_BUF);
return err;
}

@@ -317,7 +317,7 @@ xfs_dir3_leafn_read(
err = xfs_da_read_buf(tp, dp, fbno, mappedbno, bpp,
XFS_DATA_FORK, &xfs_dir3_leafn_buf_ops);
if (!err && tp)
- xfs_trans_buf_set_type(tp, *bpp, XFS_BLF_DIR_LEAFN_BUF);
+ xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_LEAFN_BUF);
return err;
}

@@ -362,10 +362,10 @@ xfs_dir3_leaf_init(
ltp = xfs_dir2_leaf_tail_p(mp, leaf);
ltp->bestcount = 0;
bp->b_ops = &xfs_dir3_leaf1_buf_ops;
- xfs_trans_buf_set_type(tp, bp, XFS_BLF_DIR_LEAF1_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DIR_LEAF1_BUF);
} else {
bp->b_ops = &xfs_dir3_leafn_buf_ops;
- xfs_trans_buf_set_type(tp, bp, XFS_BLF_DIR_LEAFN_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DIR_LEAFN_BUF);
}
}

@@ -487,7 +487,7 @@ xfs_dir2_block_to_leaf(
* Fix up the block header, make it a data block.
*/
dbp->b_ops = &xfs_dir3_data_buf_ops;
- xfs_trans_buf_set_type(tp, dbp, XFS_BLF_DIR_DATA_BUF);
+ xfs_trans_buf_set_type(tp, dbp, XFS_BLFT_DIR_DATA_BUF);
if (hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC))
hdr->magic = cpu_to_be32(XFS_DIR2_DATA_MAGIC);
else
@@ -2196,7 +2196,7 @@ xfs_dir2_node_to_leaf(
xfs_dir3_leaf_compact(args, &leafhdr, lbp);

lbp->b_ops = &xfs_dir3_leaf1_buf_ops;
- xfs_trans_buf_set_type(tp, lbp, XFS_BLF_DIR_LEAF1_BUF);
+ xfs_trans_buf_set_type(tp, lbp, XFS_BLFT_DIR_LEAF1_BUF);
leafhdr.magic = (leafhdr.magic == XFS_DIR2_LEAFN_MAGIC)
? XFS_DIR2_LEAF1_MAGIC
: XFS_DIR3_LEAF1_MAGIC;
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 9e542e7..9b0634d 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -165,7 +165,7 @@ __xfs_dir3_free_read(

/* try read returns without an error or *bpp if it lands in a hole */
if (!err && tp && *bpp)
- xfs_trans_buf_set_type(tp, *bpp, XFS_BLF_DIR_FREE_BUF);
+ xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_FREE_BUF);
return err;
}

@@ -253,7 +253,7 @@ xfs_dir3_free_get_buf(
if (error)
return error;

- xfs_trans_buf_set_type(tp, bp, XFS_BLF_DIR_FREE_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DIR_FREE_BUF);
bp->b_ops = &xfs_dir3_free_buf_ops;;

/*
@@ -402,7 +402,7 @@ xfs_dir2_leaf_to_node(
else
leaf->hdr.info.magic = cpu_to_be16(XFS_DIR3_LEAFN_MAGIC);
lbp->b_ops = &xfs_dir3_leafn_buf_ops;
- xfs_trans_buf_set_type(tp, lbp, XFS_BLF_DIR_LEAFN_BUF);
+ xfs_trans_buf_set_type(tp, lbp, XFS_BLFT_DIR_LEAFN_BUF);
xfs_dir3_leaf_log_header(tp, lbp);
xfs_dir3_leaf_check(mp, lbp);
return 0;
@@ -814,7 +814,7 @@ xfs_dir2_leafn_lookup_for_entry(
(char *)curbp->b_addr);
state->extrablk.magic = XFS_DIR2_DATA_MAGIC;
curbp->b_ops = &xfs_dir3_data_buf_ops;
- xfs_trans_buf_set_type(tp, curbp, XFS_BLF_DIR_DATA_BUF);
+ xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF);
if (cmp == XFS_CMP_EXACT)
return XFS_ERROR(EEXIST);
}
@@ -829,7 +829,7 @@ xfs_dir2_leafn_lookup_for_entry(
state->extrablk.blkno = curdb;
state->extrablk.magic = XFS_DIR2_DATA_MAGIC;
curbp->b_ops = &xfs_dir3_data_buf_ops;
- xfs_trans_buf_set_type(tp, curbp, XFS_BLF_DIR_DATA_BUF);
+ xfs_trans_buf_set_type(tp, curbp, XFS_BLFT_DIR_DATA_BUF);
} else {
/* If the curbp is not the CI match block, drop it */
if (state->extrablk.bp != curbp)
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 8ceaa11..d82071d 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -1474,7 +1474,7 @@ xfs_ialloc_log_agi(
/*
* Log the allocation group inode header buffer.
*/
- xfs_trans_buf_set_type(tp, bp, XFS_BLF_AGI_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_AGI_BUF);
xfs_trans_log_buf(tp, bp, first, last);
}

diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 6410d43..c686bff 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -1888,8 +1888,8 @@ xlog_recovery_validate_buf_type(
magic32 = be32_to_cpu(*(__be32 *)bp->b_addr);
magic16 = be16_to_cpu(*(__be16*)bp->b_addr);
magicda = be16_to_cpu(info->magic);
- switch (buf_f->blf_flags & XFS_BLF_TYPE_MASK) {
- case XFS_BLF_BTREE_BUF:
+ switch (xfs_blft_from_flags(buf_f)) {
+ case XFS_BLFT_BTREE_BUF:
switch (magic32) {
case XFS_ABTB_CRC_MAGIC:
case XFS_ABTC_CRC_MAGIC:
@@ -1911,7 +1911,7 @@ xlog_recovery_validate_buf_type(
break;
}
break;
- case XFS_BLF_AGF_BUF:
+ case XFS_BLFT_AGF_BUF:
if (magic32 != XFS_AGF_MAGIC) {
xfs_warn(mp, "Bad AGF block magic!");
ASSERT(0);
@@ -1919,7 +1919,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_agf_buf_ops;
break;
- case XFS_BLF_AGFL_BUF:
+ case XFS_BLFT_AGFL_BUF:
if (!xfs_sb_version_hascrc(&mp->m_sb))
break;
if (magic32 != XFS_AGFL_MAGIC) {
@@ -1929,7 +1929,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_agfl_buf_ops;
break;
- case XFS_BLF_AGI_BUF:
+ case XFS_BLFT_AGI_BUF:
if (magic32 != XFS_AGI_MAGIC) {
xfs_warn(mp, "Bad AGI block magic!");
ASSERT(0);
@@ -1937,9 +1937,9 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_agi_buf_ops;
break;
- case XFS_BLF_UDQUOT_BUF:
- case XFS_BLF_PDQUOT_BUF:
- case XFS_BLF_GDQUOT_BUF:
+ case XFS_BLFT_UDQUOT_BUF:
+ case XFS_BLFT_PDQUOT_BUF:
+ case XFS_BLFT_GDQUOT_BUF:
if (magic16 != XFS_DQUOT_MAGIC) {
xfs_warn(mp, "Bad DQUOT block magic!");
ASSERT(0);
@@ -1947,7 +1947,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_dquot_buf_ops;
break;
- case XFS_BLF_DINO_BUF:
+ case XFS_BLFT_DINO_BUF:
/*
* we get here with inode allocation buffers, not buffers that
* track unlinked list changes.
@@ -1959,7 +1959,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_inode_buf_ops;
break;
- case XFS_BLF_SYMLINK_BUF:
+ case XFS_BLFT_SYMLINK_BUF:
if (magic32 != XFS_SYMLINK_MAGIC) {
xfs_warn(mp, "Bad symlink block magic!");
ASSERT(0);
@@ -1967,7 +1967,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_symlink_buf_ops;
break;
- case XFS_BLF_DIR_BLOCK_BUF:
+ case XFS_BLFT_DIR_BLOCK_BUF:
if (magic32 != XFS_DIR2_BLOCK_MAGIC &&
magic32 != XFS_DIR3_BLOCK_MAGIC) {
xfs_warn(mp, "Bad dir block magic!");
@@ -1976,7 +1976,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_dir3_block_buf_ops;
break;
- case XFS_BLF_DIR_DATA_BUF:
+ case XFS_BLFT_DIR_DATA_BUF:
if (magic32 != XFS_DIR2_DATA_MAGIC &&
magic32 != XFS_DIR3_DATA_MAGIC) {
xfs_warn(mp, "Bad dir data magic!");
@@ -1985,7 +1985,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_dir3_data_buf_ops;
break;
- case XFS_BLF_DIR_FREE_BUF:
+ case XFS_BLFT_DIR_FREE_BUF:
if (magic32 != XFS_DIR2_FREE_MAGIC &&
magic32 != XFS_DIR3_FREE_MAGIC) {
xfs_warn(mp, "Bad dir3 free magic!");
@@ -1994,7 +1994,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_dir3_free_buf_ops;
break;
- case XFS_BLF_DIR_LEAF1_BUF:
+ case XFS_BLFT_DIR_LEAF1_BUF:
if (magicda != XFS_DIR2_LEAF1_MAGIC &&
magicda != XFS_DIR3_LEAF1_MAGIC) {
xfs_warn(mp, "Bad dir leaf1 magic!");
@@ -2003,7 +2003,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_dir3_leaf1_buf_ops;
break;
- case XFS_BLF_DIR_LEAFN_BUF:
+ case XFS_BLFT_DIR_LEAFN_BUF:
if (magicda != XFS_DIR2_LEAFN_MAGIC &&
magicda != XFS_DIR3_LEAFN_MAGIC) {
xfs_warn(mp, "Bad dir leafn magic!");
@@ -2012,7 +2012,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_dir3_leafn_buf_ops;
break;
- case XFS_BLF_DA_NODE_BUF:
+ case XFS_BLFT_DA_NODE_BUF:
if (magicda != XFS_DA_NODE_MAGIC &&
magicda != XFS_DA3_NODE_MAGIC) {
xfs_warn(mp, "Bad da node magic!");
@@ -2021,7 +2021,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_da3_node_buf_ops;
break;
- case XFS_BLF_ATTR_LEAF_BUF:
+ case XFS_BLFT_ATTR_LEAF_BUF:
if (magicda != XFS_ATTR_LEAF_MAGIC &&
magicda != XFS_ATTR3_LEAF_MAGIC) {
xfs_warn(mp, "Bad attr leaf magic!");
@@ -2030,7 +2030,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_attr3_leaf_buf_ops;
break;
- case XFS_BLF_ATTR_RMT_BUF:
+ case XFS_BLFT_ATTR_RMT_BUF:
if (!xfs_sb_version_hascrc(&mp->m_sb))
break;
if (magicda != XFS_ATTR3_RMT_MAGIC) {
@@ -2040,7 +2040,7 @@ xlog_recovery_validate_buf_type(
}
bp->b_ops = &xfs_attr3_rmt_buf_ops;
break;
- case XFS_BLF_SB_BUF:
+ case XFS_BLFT_SB_BUF:
if (magic32 != XFS_SB_MAGIC) {
xfs_warn(mp, "Bad SB block magic!");
ASSERT(0);
@@ -2049,6 +2049,8 @@ xlog_recovery_validate_buf_type(
bp->b_ops = &xfs_sb_buf_ops;
break;
default:
+ xfs_warn(mp, "Unknown buffer type %d!",
+ xfs_blft_from_flags(buf_f));
break;
}
}
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index cbef607..562ae16 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1696,7 +1696,7 @@ xfs_mod_sb(xfs_trans_t *tp, __int64_t fields)
ASSERT((1LL << f) & XFS_SB_MOD_BITS);
first = xfs_sb_info[f].offset;

- xfs_trans_buf_set_type(tp, bp, XFS_BLF_SB_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF);
xfs_trans_log_buf(tp, bp, first, last);
}

diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index 40871bf..73a5fa4 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -659,7 +659,7 @@ xfs_trans_binval(
ASSERT(XFS_BUF_ISSTALE(bp));
ASSERT(!(bip->bli_flags & (XFS_BLI_LOGGED | XFS_BLI_DIRTY)));
ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_INODE_BUF));
- ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_TYPE_MASK));
+ ASSERT(!(bip->__bli_format.blf_flags & XFS_BLFT_MASK));
ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL);
ASSERT(bip->bli_item.li_desc->lid_flags & XFS_LID_DIRTY);
ASSERT(tp->t_flags & XFS_TRANS_DIRTY);
@@ -672,7 +672,7 @@ xfs_trans_binval(
bip->bli_flags &= ~(XFS_BLI_INODE_BUF | XFS_BLI_LOGGED | XFS_BLI_DIRTY);
bip->__bli_format.blf_flags &= ~XFS_BLF_INODE_BUF;
bip->__bli_format.blf_flags |= XFS_BLF_CANCEL;
- bip->__bli_format.blf_flags &= ~XFS_BLF_TYPE_MASK;
+ bip->__bli_format.blf_flags &= ~XFS_BLFT_MASK;
for (i = 0; i < bip->bli_format_count; i++) {
memset(bip->bli_formats[i].blf_data_map, 0,
(bip->bli_formats[i].blf_map_size * sizeof(uint)));
@@ -704,7 +704,7 @@ xfs_trans_inode_buf(
ASSERT(atomic_read(&bip->bli_refcount) > 0);

bip->bli_flags |= XFS_BLI_INODE_BUF;
- xfs_trans_buf_set_type(tp, bp, XFS_BLF_DINO_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DINO_BUF);
}

/*
@@ -729,7 +729,7 @@ xfs_trans_stale_inode_buf(

bip->bli_flags |= XFS_BLI_STALE_INODE;
bip->bli_item.li_cb = xfs_buf_iodone;
- xfs_trans_buf_set_type(tp, bp, XFS_BLF_DINO_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DINO_BUF);
}

/*
@@ -753,7 +753,7 @@ xfs_trans_inode_alloc_buf(
ASSERT(atomic_read(&bip->bli_refcount) > 0);

bip->bli_flags |= XFS_BLI_INODE_ALLOC_BUF;
- xfs_trans_buf_set_type(tp, bp, XFS_BLF_DINO_BUF);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DINO_BUF);
}

/*
@@ -764,7 +764,7 @@ void
xfs_trans_buf_set_type(
struct xfs_trans *tp,
struct xfs_buf *bp,
- uint type)
+ enum xfs_blft type)
{
struct xfs_buf_log_item *bip = bp->b_fspriv;

@@ -774,10 +774,8 @@ xfs_trans_buf_set_type(
ASSERT(bp->b_transp == tp);
ASSERT(bip != NULL);
ASSERT(atomic_read(&bip->bli_refcount) > 0);
- ASSERT((type & XFS_BLF_TYPE_MASK) != 0);

- bip->__bli_format.blf_flags &= ~XFS_BLF_TYPE_MASK;
- bip->__bli_format.blf_flags |= type;
+ xfs_blft_to_flags(&bip->__bli_format, type);
}

void
@@ -787,11 +785,10 @@ xfs_trans_buf_copy_type(
{
struct xfs_buf_log_item *sbip = src_bp->b_fspriv;
struct xfs_buf_log_item *dbip = dst_bp->b_fspriv;
- uint type;
+ enum xfs_blft type;

- type = sbip->__bli_format.blf_flags & XFS_BLF_TYPE_MASK;
- dbip->__bli_format.blf_flags &= ~XFS_BLF_TYPE_MASK;
- dbip->__bli_format.blf_flags |= type;
+ type = xfs_blft_from_flags(&sbip->__bli_format);
+ xfs_blft_to_flags(&dbip->__bli_format, type);
}

/*
@@ -811,9 +808,28 @@ xfs_trans_dquot_buf(
xfs_buf_t *bp,
uint type)
{
+ struct xfs_buf_log_item *bip = bp->b_fspriv;
+
ASSERT(type == XFS_BLF_UDQUOT_BUF ||
type == XFS_BLF_PDQUOT_BUF ||
type == XFS_BLF_GDQUOT_BUF);

+ bip->__bli_format.blf_flags |= type;
+
+ switch (type) {
+ case XFS_BLF_UDQUOT_BUF:
+ type = XFS_BLFT_UDQUOT_BUF;
+ break;
+ case XFS_BLF_PDQUOT_BUF:
+ type = XFS_BLFT_PDQUOT_BUF;
+ break;
+ case XFS_BLF_GDQUOT_BUF:
+ type = XFS_BLFT_GDQUOT_BUF;
+ break;
+ default:
+ type = XFS_BLFT_UNKNOWN_BUF;
+ break;
+ }
+
xfs_trans_buf_set_type(tp, bp, type);
}