Commit b44b84d7 authored by Al Viro's avatar Al Viro Committed by Steven Whitehouse

[GFS2] gfs2 misc endianness annotations

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
parent b62f963e
......@@ -38,8 +38,8 @@ struct metapath {
};
typedef int (*block_call_t) (struct gfs2_inode *ip, struct buffer_head *dibh,
struct buffer_head *bh, u64 *top,
u64 *bottom, unsigned int height,
struct buffer_head *bh, __be64 *top,
__be64 *bottom, unsigned int height,
void *data);
struct strip_mine {
......@@ -230,7 +230,7 @@ static int build_height(struct inode *inode, unsigned height)
struct buffer_head *blocks[GFS2_MAX_META_HEIGHT];
struct gfs2_dinode *di;
int error;
u64 *bp;
__be64 *bp;
u64 bn;
unsigned n;
......@@ -255,7 +255,7 @@ static int build_height(struct inode *inode, unsigned height)
GFS2_FORMAT_IN);
gfs2_buffer_clear_tail(blocks[n],
sizeof(struct gfs2_meta_header));
bp = (u64 *)(blocks[n]->b_data +
bp = (__be64 *)(blocks[n]->b_data +
sizeof(struct gfs2_meta_header));
*bp = cpu_to_be64(blocks[n+1]->b_blocknr);
brelse(blocks[n]);
......@@ -360,15 +360,15 @@ static void find_metapath(struct gfs2_inode *ip, u64 block,
* metadata tree.
*/
static inline u64 *metapointer(struct buffer_head *bh, int *boundary,
static inline __be64 *metapointer(struct buffer_head *bh, int *boundary,
unsigned int height, const struct metapath *mp)
{
unsigned int head_size = (height > 0) ?
sizeof(struct gfs2_meta_header) : sizeof(struct gfs2_dinode);
u64 *ptr;
__be64 *ptr;
*boundary = 0;
ptr = ((u64 *)(bh->b_data + head_size)) + mp->mp_list[height];
if (ptr + 1 == (u64 *)(bh->b_data + bh->b_size))
ptr = ((__be64 *)(bh->b_data + head_size)) + mp->mp_list[height];
if (ptr + 1 == (__be64 *)(bh->b_data + bh->b_size))
*boundary = 1;
return ptr;
}
......@@ -394,7 +394,7 @@ static int lookup_block(struct gfs2_inode *ip, struct buffer_head *bh,
int *new, u64 *block)
{
int boundary;
u64 *ptr = metapointer(bh, &boundary, height, mp);
__be64 *ptr = metapointer(bh, &boundary, height, mp);
if (*ptr) {
*block = be64_to_cpu(*ptr);
......@@ -600,7 +600,7 @@ static int recursive_scan(struct gfs2_inode *ip, struct buffer_head *dibh,
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct buffer_head *bh = NULL;
u64 *top, *bottom;
__be64 *top, *bottom;
u64 bn;
int error;
int mh_size = sizeof(struct gfs2_meta_header);
......@@ -611,17 +611,17 @@ static int recursive_scan(struct gfs2_inode *ip, struct buffer_head *dibh,
return error;
dibh = bh;
top = (u64 *)(bh->b_data + sizeof(struct gfs2_dinode)) + mp->mp_list[0];
bottom = (u64 *)(bh->b_data + sizeof(struct gfs2_dinode)) + sdp->sd_diptrs;
top = (__be64 *)(bh->b_data + sizeof(struct gfs2_dinode)) + mp->mp_list[0];
bottom = (__be64 *)(bh->b_data + sizeof(struct gfs2_dinode)) + sdp->sd_diptrs;
} else {
error = gfs2_meta_indirect_buffer(ip, height, block, 0, &bh);
if (error)
return error;
top = (u64 *)(bh->b_data + mh_size) +
top = (__be64 *)(bh->b_data + mh_size) +
(first ? mp->mp_list[height] : 0);
bottom = (u64 *)(bh->b_data + mh_size) + sdp->sd_inptrs;
bottom = (__be64 *)(bh->b_data + mh_size) + sdp->sd_inptrs;
}
error = bc(ip, dibh, bh, top, bottom, height, data);
......@@ -660,7 +660,7 @@ static int recursive_scan(struct gfs2_inode *ip, struct buffer_head *dibh,
*/
static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
struct buffer_head *bh, u64 *top, u64 *bottom,
struct buffer_head *bh, __be64 *top, __be64 *bottom,
unsigned int height, void *data)
{
struct strip_mine *sm = data;
......@@ -668,7 +668,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
struct gfs2_rgrp_list rlist;
u64 bn, bstart;
u32 blen;
u64 *p;
__be64 *p;
unsigned int rg_blocks = 0;
int metadata;
unsigned int revokes = 0;
......
......@@ -713,12 +713,12 @@ static int get_leaf(struct gfs2_inode *dip, u64 leaf_no,
static int get_leaf_nr(struct gfs2_inode *dip, u32 index,
u64 *leaf_out)
{
u64 leaf_no;
__be64 leaf_no;
int error;
error = gfs2_dir_read_data(dip, (char *)&leaf_no,
index * sizeof(u64),
sizeof(u64), 0);
index * sizeof(__be64),
sizeof(__be64), 0);
if (error != sizeof(u64))
return (error < 0) ? error : -EIO;
......@@ -837,7 +837,8 @@ static int dir_make_exhash(struct inode *inode)
struct gfs2_leaf *leaf;
int y;
u32 x;
u64 *lp, bn;
__be64 *lp;
u64 bn;
int error;
error = gfs2_meta_inode_buffer(dip, &dibh);
......@@ -893,7 +894,7 @@ static int dir_make_exhash(struct inode *inode)
gfs2_trans_add_bh(dip->i_gl, dibh, 1);
gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
lp = (u64 *)(dibh->b_data + sizeof(struct gfs2_dinode));
lp = (__be64 *)(dibh->b_data + sizeof(struct gfs2_dinode));
for (x = sdp->sd_hash_ptrs; x--; lp++)
*lp = cpu_to_be64(bn);
......@@ -929,7 +930,8 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
struct gfs2_leaf *nleaf, *oleaf;
struct gfs2_dirent *dent = NULL, *prev = NULL, *next = NULL, *new;
u32 start, len, half_len, divider;
u64 bn, *lp, leaf_no;
u64 bn, leaf_no;
__be64 *lp;
u32 index;
int x, moved = 0;
int error;
......@@ -974,7 +976,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
/* Change the pointers.
Don't bother distinguishing stuffed from non-stuffed.
This code is complicated enough already. */
lp = kmalloc(half_len * sizeof(u64), GFP_NOFS | __GFP_NOFAIL);
lp = kmalloc(half_len * sizeof(__be64), GFP_NOFS | __GFP_NOFAIL);
/* Change the pointers */
for (x = 0; x < half_len; x++)
lp[x] = cpu_to_be64(bn);
......@@ -1341,7 +1343,7 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
u32 hsize, len = 0;
u32 ht_offset, lp_offset, ht_offset_cur = -1;
u32 hash, index;
u64 *lp;
__be64 *lp;
int copied = 0;
int error = 0;
unsigned depth = 0;
......@@ -1365,7 +1367,7 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
if (ht_offset_cur != ht_offset) {
error = gfs2_dir_read_data(dip, (char *)lp,
ht_offset * sizeof(u64),
ht_offset * sizeof(__be64),
sdp->sd_hash_bsize, 1);
if (error != sdp->sd_hash_bsize) {
if (error >= 0)
......@@ -1715,7 +1717,7 @@ static int foreach_leaf(struct gfs2_inode *dip, leaf_call_t lc, void *data)
u32 hsize, len;
u32 ht_offset, lp_offset, ht_offset_cur = -1;
u32 index = 0;
u64 *lp;
__be64 *lp;
u64 leaf_no;
int error = 0;
......@@ -1735,7 +1737,7 @@ static int foreach_leaf(struct gfs2_inode *dip, leaf_call_t lc, void *data)
if (ht_offset_cur != ht_offset) {
error = gfs2_dir_read_data(dip, (char *)lp,
ht_offset * sizeof(u64),
ht_offset * sizeof(__be64),
sdp->sd_hash_bsize, 1);
if (error != sdp->sd_hash_bsize) {
if (error >= 0)
......
......@@ -112,7 +112,7 @@ static int ea_foreach_i(struct gfs2_inode *ip, struct buffer_head *bh,
static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data)
{
struct buffer_head *bh, *eabh;
u64 *eablk, *end;
__be64 *eablk, *end;
int error;
error = gfs2_meta_read(ip->i_gl, ip->i_di.di_eattr, DIO_WAIT, &bh);
......@@ -129,7 +129,7 @@ static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data)
goto out;
}
eablk = (u64 *)(bh->b_data + sizeof(struct gfs2_meta_header));
eablk = (__be64 *)(bh->b_data + sizeof(struct gfs2_meta_header));
end = eablk + GFS2_SB(&ip->i_inode)->sd_inptrs;
for (; eablk < end; eablk++) {
......@@ -224,7 +224,8 @@ static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,
struct gfs2_rgrpd *rgd;
struct gfs2_holder rg_gh;
struct buffer_head *dibh;
u64 *dataptrs, bn = 0;
__be64 *dataptrs;
u64 bn = 0;
u64 bstart = 0;
unsigned int blen = 0;
unsigned int blks = 0;
......@@ -444,7 +445,7 @@ static int ea_get_unstuffed(struct gfs2_inode *ip, struct gfs2_ea_header *ea,
struct buffer_head **bh;
unsigned int amount = GFS2_EA_DATA_LEN(ea);
unsigned int nptrs = DIV_ROUND_UP(amount, sdp->sd_jbsize);
u64 *dataptrs = GFS2_EA2DATAPTRS(ea);
__be64 *dataptrs = GFS2_EA2DATAPTRS(ea);
unsigned int x;
int error = 0;
......@@ -629,7 +630,7 @@ static int ea_write(struct gfs2_inode *ip, struct gfs2_ea_header *ea,
ea->ea_num_ptrs = 0;
memcpy(GFS2_EA2DATA(ea), er->er_data, er->er_data_len);
} else {
u64 *dataptr = GFS2_EA2DATAPTRS(ea);
__be64 *dataptr = GFS2_EA2DATAPTRS(ea);
const char *data = er->er_data;
unsigned int data_len = er->er_data_len;
unsigned int copy;
......@@ -931,12 +932,12 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct buffer_head *indbh, *newbh;
u64 *eablk;
__be64 *eablk;
int error;
int mh_size = sizeof(struct gfs2_meta_header);
if (ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT) {
u64 *end;
__be64 *end;
error = gfs2_meta_read(ip->i_gl, ip->i_di.di_eattr, DIO_WAIT,
&indbh);
......@@ -948,7 +949,7 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
goto out;
}
eablk = (u64 *)(indbh->b_data + mh_size);
eablk = (__be64 *)(indbh->b_data + mh_size);
end = eablk + sdp->sd_inptrs;
for (; eablk < end; eablk++)
......@@ -971,7 +972,7 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
gfs2_metatype_set(indbh, GFS2_METATYPE_IN, GFS2_FORMAT_IN);
gfs2_buffer_clear_tail(indbh, mh_size);
eablk = (u64 *)(indbh->b_data + mh_size);
eablk = (__be64 *)(indbh->b_data + mh_size);
*eablk = cpu_to_be64(ip->i_di.di_eattr);
ip->i_di.di_eattr = blk;
ip->i_di.di_flags |= GFS2_DIF_EA_INDIRECT;
......@@ -1202,7 +1203,7 @@ static int ea_acl_chmod_unstuffed(struct gfs2_inode *ip,
struct buffer_head **bh;
unsigned int amount = GFS2_EA_DATA_LEN(ea);
unsigned int nptrs = DIV_ROUND_UP(amount, sdp->sd_jbsize);
u64 *dataptrs = GFS2_EA2DATAPTRS(ea);
__be64 *dataptrs = GFS2_EA2DATAPTRS(ea);
unsigned int x;
int error;
......@@ -1300,7 +1301,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct gfs2_rgrp_list rlist;
struct buffer_head *indbh, *dibh;
u64 *eablk, *end;
__be64 *eablk, *end;
unsigned int rg_blocks = 0;
u64 bstart = 0;
unsigned int blen = 0;
......@@ -1319,7 +1320,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
goto out;
}
eablk = (u64 *)(indbh->b_data + sizeof(struct gfs2_meta_header));
eablk = (__be64 *)(indbh->b_data + sizeof(struct gfs2_meta_header));
end = eablk + sdp->sd_inptrs;
for (; eablk < end; eablk++) {
......@@ -1363,7 +1364,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
gfs2_trans_add_bh(ip->i_gl, indbh, 1);
eablk = (u64 *)(indbh->b_data + sizeof(struct gfs2_meta_header));
eablk = (__be64 *)(indbh->b_data + sizeof(struct gfs2_meta_header));
bstart = 0;
blen = 0;
......
......@@ -19,7 +19,7 @@ struct iattr;
#define GFS2_EA_SIZE(ea) \
ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \
((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \
(sizeof(u64) * (ea)->ea_num_ptrs)), 8)
(sizeof(__be64) * (ea)->ea_num_ptrs)), 8)
#define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs)
#define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST)
......@@ -29,13 +29,13 @@ ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8)
#define GFS2_EAREQ_SIZE_UNSTUFFED(sdp, er) \
ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + \
sizeof(u64) * DIV_ROUND_UP((er)->er_data_len, (sdp)->sd_jbsize), 8)
sizeof(__be64) * DIV_ROUND_UP((er)->er_data_len, (sdp)->sd_jbsize), 8)
#define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1))
#define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len)
#define GFS2_EA2DATAPTRS(ea) \
((u64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8)))
((__be64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8)))
#define GFS2_EA2NEXT(ea) \
((struct gfs2_ea_header *)((char *)(ea) + GFS2_EA_REC_LEN(ea)))
......
......@@ -500,21 +500,22 @@ static int pick_formal_ino_2(struct gfs2_sbd *sdp, u64 *formal_ino)
if (!ir.ir_length) {
struct buffer_head *m_bh;
u64 x, y;
__be64 z;
error = gfs2_meta_inode_buffer(m_ip, &m_bh);
if (error)
goto out_brelse;
x = *(u64 *)(m_bh->b_data + sizeof(struct gfs2_dinode));
x = y = be64_to_cpu(x);
z = *(__be64 *)(m_bh->b_data + sizeof(struct gfs2_dinode));
x = y = be64_to_cpu(z);
ir.ir_start = x;
ir.ir_length = GFS2_INUM_QUANTUM;
x += GFS2_INUM_QUANTUM;
if (x < y)
gfs2_consist_inode(m_ip);
x = cpu_to_be64(x);
z = cpu_to_be64(x);
gfs2_trans_add_bh(m_ip->i_gl, m_bh, 1);
*(u64 *)(m_bh->b_data + sizeof(struct gfs2_dinode)) = x;
*(__be64 *)(m_bh->b_data + sizeof(struct gfs2_dinode)) = z;
brelse(m_bh);
}
......
......@@ -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);
......
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