forked from Minki/linux
[GFS2] gfs2 misc endianness annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Al Viro
Steven Whitehouse
parent
b62f963e1f
commit
b44b84d765
@ -38,8 +38,8 @@ struct metapath {
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};
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typedef int (*block_call_t) (struct gfs2_inode *ip, struct buffer_head *dibh,
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struct buffer_head *bh, u64 *top,
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u64 *bottom, unsigned int height,
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struct buffer_head *bh, __be64 *top,
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__be64 *bottom, unsigned int height,
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void *data);
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struct strip_mine {
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@ -230,7 +230,7 @@ static int build_height(struct inode *inode, unsigned height)
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struct buffer_head *blocks[GFS2_MAX_META_HEIGHT];
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struct gfs2_dinode *di;
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int error;
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u64 *bp;
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__be64 *bp;
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u64 bn;
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unsigned n;
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@ -255,7 +255,7 @@ static int build_height(struct inode *inode, unsigned height)
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GFS2_FORMAT_IN);
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gfs2_buffer_clear_tail(blocks[n],
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sizeof(struct gfs2_meta_header));
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bp = (u64 *)(blocks[n]->b_data +
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bp = (__be64 *)(blocks[n]->b_data +
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sizeof(struct gfs2_meta_header));
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*bp = cpu_to_be64(blocks[n+1]->b_blocknr);
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brelse(blocks[n]);
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@ -360,15 +360,15 @@ static void find_metapath(struct gfs2_inode *ip, u64 block,
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* metadata tree.
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*/
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static inline u64 *metapointer(struct buffer_head *bh, int *boundary,
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static inline __be64 *metapointer(struct buffer_head *bh, int *boundary,
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unsigned int height, const struct metapath *mp)
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{
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unsigned int head_size = (height > 0) ?
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sizeof(struct gfs2_meta_header) : sizeof(struct gfs2_dinode);
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u64 *ptr;
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__be64 *ptr;
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*boundary = 0;
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ptr = ((u64 *)(bh->b_data + head_size)) + mp->mp_list[height];
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if (ptr + 1 == (u64 *)(bh->b_data + bh->b_size))
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ptr = ((__be64 *)(bh->b_data + head_size)) + mp->mp_list[height];
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if (ptr + 1 == (__be64 *)(bh->b_data + bh->b_size))
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*boundary = 1;
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return ptr;
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}
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@ -394,7 +394,7 @@ static int lookup_block(struct gfs2_inode *ip, struct buffer_head *bh,
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int *new, u64 *block)
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{
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int boundary;
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u64 *ptr = metapointer(bh, &boundary, height, mp);
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__be64 *ptr = metapointer(bh, &boundary, height, mp);
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if (*ptr) {
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*block = be64_to_cpu(*ptr);
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@ -600,7 +600,7 @@ static int recursive_scan(struct gfs2_inode *ip, struct buffer_head *dibh,
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{
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struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
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struct buffer_head *bh = NULL;
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u64 *top, *bottom;
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__be64 *top, *bottom;
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u64 bn;
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int error;
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int mh_size = sizeof(struct gfs2_meta_header);
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@ -611,17 +611,17 @@ static int recursive_scan(struct gfs2_inode *ip, struct buffer_head *dibh,
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return error;
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dibh = bh;
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top = (u64 *)(bh->b_data + sizeof(struct gfs2_dinode)) + mp->mp_list[0];
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bottom = (u64 *)(bh->b_data + sizeof(struct gfs2_dinode)) + sdp->sd_diptrs;
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top = (__be64 *)(bh->b_data + sizeof(struct gfs2_dinode)) + mp->mp_list[0];
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bottom = (__be64 *)(bh->b_data + sizeof(struct gfs2_dinode)) + sdp->sd_diptrs;
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} else {
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error = gfs2_meta_indirect_buffer(ip, height, block, 0, &bh);
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if (error)
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return error;
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top = (u64 *)(bh->b_data + mh_size) +
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top = (__be64 *)(bh->b_data + mh_size) +
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(first ? mp->mp_list[height] : 0);
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bottom = (u64 *)(bh->b_data + mh_size) + sdp->sd_inptrs;
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bottom = (__be64 *)(bh->b_data + mh_size) + sdp->sd_inptrs;
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}
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error = bc(ip, dibh, bh, top, bottom, height, data);
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@ -660,7 +660,7 @@ out:
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*/
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static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
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struct buffer_head *bh, u64 *top, u64 *bottom,
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struct buffer_head *bh, __be64 *top, __be64 *bottom,
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unsigned int height, void *data)
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{
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struct strip_mine *sm = data;
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@ -668,7 +668,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
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struct gfs2_rgrp_list rlist;
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u64 bn, bstart;
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u32 blen;
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u64 *p;
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__be64 *p;
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unsigned int rg_blocks = 0;
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int metadata;
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unsigned int revokes = 0;
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@ -713,12 +713,12 @@ static int get_leaf(struct gfs2_inode *dip, u64 leaf_no,
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static int get_leaf_nr(struct gfs2_inode *dip, u32 index,
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u64 *leaf_out)
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{
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u64 leaf_no;
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__be64 leaf_no;
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int error;
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error = gfs2_dir_read_data(dip, (char *)&leaf_no,
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index * sizeof(u64),
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sizeof(u64), 0);
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index * sizeof(__be64),
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sizeof(__be64), 0);
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if (error != sizeof(u64))
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return (error < 0) ? error : -EIO;
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@ -837,7 +837,8 @@ static int dir_make_exhash(struct inode *inode)
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struct gfs2_leaf *leaf;
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int y;
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u32 x;
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u64 *lp, bn;
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__be64 *lp;
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u64 bn;
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int error;
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error = gfs2_meta_inode_buffer(dip, &dibh);
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@ -893,7 +894,7 @@ static int dir_make_exhash(struct inode *inode)
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gfs2_trans_add_bh(dip->i_gl, dibh, 1);
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gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
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lp = (u64 *)(dibh->b_data + sizeof(struct gfs2_dinode));
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lp = (__be64 *)(dibh->b_data + sizeof(struct gfs2_dinode));
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for (x = sdp->sd_hash_ptrs; x--; lp++)
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*lp = cpu_to_be64(bn);
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@ -929,7 +930,8 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
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struct gfs2_leaf *nleaf, *oleaf;
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struct gfs2_dirent *dent = NULL, *prev = NULL, *next = NULL, *new;
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u32 start, len, half_len, divider;
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u64 bn, *lp, leaf_no;
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u64 bn, leaf_no;
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__be64 *lp;
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u32 index;
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int x, moved = 0;
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int error;
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@ -974,7 +976,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
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/* Change the pointers.
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Don't bother distinguishing stuffed from non-stuffed.
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This code is complicated enough already. */
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lp = kmalloc(half_len * sizeof(u64), GFP_NOFS | __GFP_NOFAIL);
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lp = kmalloc(half_len * sizeof(__be64), GFP_NOFS | __GFP_NOFAIL);
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/* Change the pointers */
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for (x = 0; x < half_len; x++)
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lp[x] = cpu_to_be64(bn);
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@ -1341,7 +1343,7 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
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u32 hsize, len = 0;
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u32 ht_offset, lp_offset, ht_offset_cur = -1;
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u32 hash, index;
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u64 *lp;
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__be64 *lp;
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int copied = 0;
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int error = 0;
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unsigned depth = 0;
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@ -1365,7 +1367,7 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
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if (ht_offset_cur != ht_offset) {
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error = gfs2_dir_read_data(dip, (char *)lp,
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ht_offset * sizeof(u64),
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ht_offset * sizeof(__be64),
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sdp->sd_hash_bsize, 1);
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if (error != sdp->sd_hash_bsize) {
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if (error >= 0)
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@ -1715,7 +1717,7 @@ static int foreach_leaf(struct gfs2_inode *dip, leaf_call_t lc, void *data)
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u32 hsize, len;
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u32 ht_offset, lp_offset, ht_offset_cur = -1;
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u32 index = 0;
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u64 *lp;
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__be64 *lp;
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u64 leaf_no;
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int error = 0;
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@ -1735,7 +1737,7 @@ static int foreach_leaf(struct gfs2_inode *dip, leaf_call_t lc, void *data)
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if (ht_offset_cur != ht_offset) {
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error = gfs2_dir_read_data(dip, (char *)lp,
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ht_offset * sizeof(u64),
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ht_offset * sizeof(__be64),
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sdp->sd_hash_bsize, 1);
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if (error != sdp->sd_hash_bsize) {
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if (error >= 0)
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@ -112,7 +112,7 @@ fail:
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static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data)
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{
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struct buffer_head *bh, *eabh;
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u64 *eablk, *end;
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__be64 *eablk, *end;
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int error;
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error = gfs2_meta_read(ip->i_gl, ip->i_di.di_eattr, DIO_WAIT, &bh);
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@ -129,7 +129,7 @@ static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data)
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goto out;
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}
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eablk = (u64 *)(bh->b_data + sizeof(struct gfs2_meta_header));
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eablk = (__be64 *)(bh->b_data + sizeof(struct gfs2_meta_header));
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end = eablk + GFS2_SB(&ip->i_inode)->sd_inptrs;
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for (; eablk < end; eablk++) {
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@ -224,7 +224,8 @@ static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,
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struct gfs2_rgrpd *rgd;
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struct gfs2_holder rg_gh;
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struct buffer_head *dibh;
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u64 *dataptrs, bn = 0;
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__be64 *dataptrs;
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u64 bn = 0;
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u64 bstart = 0;
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unsigned int blen = 0;
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unsigned int blks = 0;
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@ -444,7 +445,7 @@ static int ea_get_unstuffed(struct gfs2_inode *ip, struct gfs2_ea_header *ea,
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struct buffer_head **bh;
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unsigned int amount = GFS2_EA_DATA_LEN(ea);
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unsigned int nptrs = DIV_ROUND_UP(amount, sdp->sd_jbsize);
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u64 *dataptrs = GFS2_EA2DATAPTRS(ea);
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__be64 *dataptrs = GFS2_EA2DATAPTRS(ea);
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unsigned int x;
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int error = 0;
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@ -629,7 +630,7 @@ static int ea_write(struct gfs2_inode *ip, struct gfs2_ea_header *ea,
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ea->ea_num_ptrs = 0;
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memcpy(GFS2_EA2DATA(ea), er->er_data, er->er_data_len);
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} else {
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u64 *dataptr = GFS2_EA2DATAPTRS(ea);
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__be64 *dataptr = GFS2_EA2DATAPTRS(ea);
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const char *data = er->er_data;
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unsigned int data_len = er->er_data_len;
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unsigned int copy;
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@ -931,12 +932,12 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
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{
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struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
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struct buffer_head *indbh, *newbh;
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u64 *eablk;
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__be64 *eablk;
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int error;
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int mh_size = sizeof(struct gfs2_meta_header);
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if (ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT) {
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u64 *end;
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__be64 *end;
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error = gfs2_meta_read(ip->i_gl, ip->i_di.di_eattr, DIO_WAIT,
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&indbh);
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@ -948,7 +949,7 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
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goto out;
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}
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eablk = (u64 *)(indbh->b_data + mh_size);
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eablk = (__be64 *)(indbh->b_data + mh_size);
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end = eablk + sdp->sd_inptrs;
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for (; eablk < end; eablk++)
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@ -971,7 +972,7 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
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gfs2_metatype_set(indbh, GFS2_METATYPE_IN, GFS2_FORMAT_IN);
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gfs2_buffer_clear_tail(indbh, mh_size);
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eablk = (u64 *)(indbh->b_data + mh_size);
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eablk = (__be64 *)(indbh->b_data + mh_size);
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*eablk = cpu_to_be64(ip->i_di.di_eattr);
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ip->i_di.di_eattr = blk;
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ip->i_di.di_flags |= GFS2_DIF_EA_INDIRECT;
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@ -1202,7 +1203,7 @@ static int ea_acl_chmod_unstuffed(struct gfs2_inode *ip,
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struct buffer_head **bh;
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unsigned int amount = GFS2_EA_DATA_LEN(ea);
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unsigned int nptrs = DIV_ROUND_UP(amount, sdp->sd_jbsize);
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u64 *dataptrs = GFS2_EA2DATAPTRS(ea);
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__be64 *dataptrs = GFS2_EA2DATAPTRS(ea);
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unsigned int x;
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int error;
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@ -1300,7 +1301,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
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struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
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struct gfs2_rgrp_list rlist;
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struct buffer_head *indbh, *dibh;
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u64 *eablk, *end;
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__be64 *eablk, *end;
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unsigned int rg_blocks = 0;
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u64 bstart = 0;
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unsigned int blen = 0;
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@ -1319,7 +1320,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
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goto out;
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}
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eablk = (u64 *)(indbh->b_data + sizeof(struct gfs2_meta_header));
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eablk = (__be64 *)(indbh->b_data + sizeof(struct gfs2_meta_header));
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end = eablk + sdp->sd_inptrs;
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for (; eablk < end; eablk++) {
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@ -1363,7 +1364,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
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gfs2_trans_add_bh(ip->i_gl, indbh, 1);
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eablk = (u64 *)(indbh->b_data + sizeof(struct gfs2_meta_header));
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eablk = (__be64 *)(indbh->b_data + sizeof(struct gfs2_meta_header));
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bstart = 0;
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blen = 0;
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@ -19,7 +19,7 @@ struct iattr;
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#define GFS2_EA_SIZE(ea) \
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ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \
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((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \
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(sizeof(u64) * (ea)->ea_num_ptrs)), 8)
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(sizeof(__be64) * (ea)->ea_num_ptrs)), 8)
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#define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs)
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#define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST)
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@ -29,13 +29,13 @@ ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8)
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#define GFS2_EAREQ_SIZE_UNSTUFFED(sdp, er) \
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ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + \
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sizeof(u64) * DIV_ROUND_UP((er)->er_data_len, (sdp)->sd_jbsize), 8)
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sizeof(__be64) * DIV_ROUND_UP((er)->er_data_len, (sdp)->sd_jbsize), 8)
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#define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1))
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#define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len)
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#define GFS2_EA2DATAPTRS(ea) \
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((u64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8)))
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((__be64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8)))
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#define GFS2_EA2NEXT(ea) \
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((struct gfs2_ea_header *)((char *)(ea) + GFS2_EA_REC_LEN(ea)))
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@ -500,21 +500,22 @@ static int pick_formal_ino_2(struct gfs2_sbd *sdp, u64 *formal_ino)
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if (!ir.ir_length) {
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struct buffer_head *m_bh;
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u64 x, y;
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__be64 z;
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error = gfs2_meta_inode_buffer(m_ip, &m_bh);
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if (error)
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goto out_brelse;
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x = *(u64 *)(m_bh->b_data + sizeof(struct gfs2_dinode));
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x = y = be64_to_cpu(x);
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z = *(__be64 *)(m_bh->b_data + sizeof(struct gfs2_dinode));
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x = y = be64_to_cpu(z);
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ir.ir_start = x;
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ir.ir_length = GFS2_INUM_QUANTUM;
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x += GFS2_INUM_QUANTUM;
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if (x < y)
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gfs2_consist_inode(m_ip);
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x = cpu_to_be64(x);
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z = cpu_to_be64(x);
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gfs2_trans_add_bh(m_ip->i_gl, m_bh, 1);
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*(u64 *)(m_bh->b_data + sizeof(struct gfs2_dinode)) = x;
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*(__be64 *)(m_bh->b_data + sizeof(struct gfs2_dinode)) = z;
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brelse(m_bh);
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}
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||||
@ -27,13 +27,14 @@
|
||||
#include "util.h"
|
||||
|
||||
static struct dentry *gfs2_decode_fh(struct super_block *sb,
|
||||
__u32 *fh,
|
||||
__u32 *p,
|
||||
int fh_len,
|
||||
int fh_type,
|
||||
int (*acceptable)(void *context,
|
||||
struct dentry *dentry),
|
||||
void *context)
|
||||
{
|
||||
__be32 *fh = (__force __be32 *)p;
|
||||
struct gfs2_fh_obj fh_obj;
|
||||
struct gfs2_inum_host *this, parent;
|
||||
|
||||
@ -65,9 +66,10 @@ static struct dentry *gfs2_decode_fh(struct super_block *sb,
|
||||
acceptable, context);
|
||||
}
|
||||
|
||||
static int gfs2_encode_fh(struct dentry *dentry, __u32 *fh, int *len,
|
||||
static int gfs2_encode_fh(struct dentry *dentry, __u32 *p, int *len,
|
||||
int connectable)
|
||||
{
|
||||
__be32 *fh = (__force __be32 *)p;
|
||||
struct inode *inode = dentry->d_inode;
|
||||
struct super_block *sb = inode->i_sb;
|
||||
struct gfs2_inode *ip = GFS2_I(inode);
|
||||
@ -76,14 +78,10 @@ static int gfs2_encode_fh(struct dentry *dentry, __u32 *fh, int *len,
|
||||
(connectable && *len < GFS2_LARGE_FH_SIZE))
|
||||
return 255;
|
||||
|
||||
fh[0] = ip->i_num.no_formal_ino >> 32;
|
||||
fh[0] = cpu_to_be32(fh[0]);
|
||||
fh[1] = ip->i_num.no_formal_ino & 0xFFFFFFFF;
|
||||
fh[1] = cpu_to_be32(fh[1]);
|
||||
fh[2] = ip->i_num.no_addr >> 32;
|
||||
fh[2] = cpu_to_be32(fh[2]);
|
||||
fh[3] = ip->i_num.no_addr & 0xFFFFFFFF;
|
||||
fh[3] = cpu_to_be32(fh[3]);
|
||||
fh[0] = cpu_to_be32(ip->i_num.no_formal_ino >> 32);
|
||||
fh[1] = cpu_to_be32(ip->i_num.no_formal_ino & 0xFFFFFFFF);
|
||||
fh[2] = cpu_to_be32(ip->i_num.no_addr >> 32);
|
||||
fh[3] = cpu_to_be32(ip->i_num.no_addr & 0xFFFFFFFF);
|
||||
*len = GFS2_SMALL_FH_SIZE;
|
||||
|
||||
if (!connectable || inode == sb->s_root->d_inode)
|
||||
@ -95,14 +93,10 @@ static int gfs2_encode_fh(struct dentry *dentry, __u32 *fh, int *len,
|
||||
igrab(inode);
|
||||
spin_unlock(&dentry->d_lock);
|
||||
|
||||
fh[4] = ip->i_num.no_formal_ino >> 32;
|
||||
fh[4] = cpu_to_be32(fh[4]);
|
||||
fh[5] = ip->i_num.no_formal_ino & 0xFFFFFFFF;
|
||||
fh[5] = cpu_to_be32(fh[5]);
|
||||
fh[6] = ip->i_num.no_addr >> 32;
|
||||
fh[6] = cpu_to_be32(fh[6]);
|
||||
fh[7] = ip->i_num.no_addr & 0xFFFFFFFF;
|
||||
fh[7] = cpu_to_be32(fh[7]);
|
||||
fh[4] = cpu_to_be32(ip->i_num.no_formal_ino >> 32);
|
||||
fh[5] = cpu_to_be32(ip->i_num.no_formal_ino & 0xFFFFFFFF);
|
||||
fh[6] = cpu_to_be32(ip->i_num.no_addr >> 32);
|
||||
fh[7] = cpu_to_be32(ip->i_num.no_addr & 0xFFFFFFFF);
|
||||
|
||||
fh[8] = cpu_to_be32(inode->i_mode);
|
||||
fh[9] = 0; /* pad to double word */
|
||||
|
||||
@ -539,8 +539,7 @@ static void do_qc(struct gfs2_quota_data *qd, s64 change)
|
||||
qc->qc_id = cpu_to_be32(qd->qd_id);
|
||||
}
|
||||
|
||||
x = qc->qc_change;
|
||||
x = be64_to_cpu(x) + change;
|
||||
x = be64_to_cpu(qc->qc_change) + change;
|
||||
qc->qc_change = cpu_to_be64(x);
|
||||
|
||||
spin_lock(&sdp->sd_quota_spin);
|
||||
|
||||
@ -83,8 +83,7 @@ static inline int gfs2_meta_check_i(struct gfs2_sbd *sdp,
|
||||
char *file, unsigned int line)
|
||||
{
|
||||
struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
|
||||
u32 magic = mh->mh_magic;
|
||||
magic = be32_to_cpu(magic);
|
||||
u32 magic = be32_to_cpu(mh->mh_magic);
|
||||
if (unlikely(magic != GFS2_MAGIC))
|
||||
return gfs2_meta_check_ii(sdp, bh, "magic number", function,
|
||||
file, line);
|
||||
@ -107,9 +106,8 @@ static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
|
||||
char *file, unsigned int line)
|
||||
{
|
||||
struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
|
||||
u32 magic = mh->mh_magic;
|
||||
u32 magic = be32_to_cpu(mh->mh_magic);
|
||||
u16 t = be32_to_cpu(mh->mh_type);
|
||||
magic = be32_to_cpu(magic);
|
||||
if (unlikely(magic != GFS2_MAGIC))
|
||||
return gfs2_meta_check_ii(sdp, bh, "magic number", function,
|
||||
file, line);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user