diff options
Diffstat (limited to 'fs/gfs2/dir.c')
-rw-r--r-- | fs/gfs2/dir.c | 103 |
1 files changed, 55 insertions, 48 deletions
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c index 459498cac93..0fdcb7713cd 100644 --- a/fs/gfs2/dir.c +++ b/fs/gfs2/dir.c @@ -131,8 +131,8 @@ static int gfs2_dir_write_stuffed(struct gfs2_inode *ip, const char *buf, memcpy(dibh->b_data + offset + sizeof(struct gfs2_dinode), buf, size); if (ip->i_di.di_size < offset + size) ip->i_di.di_size = offset + size; - ip->i_di.di_mtime = ip->i_di.di_ctime = get_seconds(); - gfs2_dinode_out(&ip->i_di, dibh->b_data); + ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds(); + gfs2_dinode_out(ip, dibh->b_data); brelse(dibh); @@ -184,7 +184,7 @@ static int gfs2_dir_write_data(struct gfs2_inode *ip, const char *buf, while (copied < size) { unsigned int amount; struct buffer_head *bh; - int new; + int new = 0; amount = size - copied; if (amount > sdp->sd_sb.sb_bsize - o) @@ -212,8 +212,6 @@ static int gfs2_dir_write_data(struct gfs2_inode *ip, const char *buf, gfs2_trans_add_bh(ip->i_gl, bh, 1); memcpy(bh->b_data + o, buf, amount); brelse(bh); - if (error) - goto fail; buf += amount; copied += amount; @@ -231,10 +229,10 @@ out: if (ip->i_di.di_size < offset + copied) ip->i_di.di_size = offset + copied; - ip->i_di.di_mtime = ip->i_di.di_ctime = get_seconds(); + ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds(); gfs2_trans_add_bh(ip->i_gl, dibh, 1); - gfs2_dinode_out(&ip->i_di, dibh->b_data); + gfs2_dinode_out(ip, dibh->b_data); brelse(dibh); return copied; @@ -317,8 +315,7 @@ static int gfs2_dir_read_data(struct gfs2_inode *ip, char *buf, u64 offset, if (!ra) extlen = 1; bh = gfs2_meta_ra(ip->i_gl, dblock, extlen); - } - if (!bh) { + } else { error = gfs2_meta_read(ip->i_gl, dblock, DIO_WAIT, &bh); if (error) goto fail; @@ -332,7 +329,6 @@ static int gfs2_dir_read_data(struct gfs2_inode *ip, char *buf, u64 offset, extlen--; memcpy(buf, bh->b_data + o, amount); brelse(bh); - bh = NULL; buf += amount; copied += amount; lblock++; @@ -344,10 +340,15 @@ fail: return (copied) ? copied : error; } +static inline int gfs2_dirent_sentinel(const struct gfs2_dirent *dent) +{ + return dent->de_inum.no_addr == 0 || dent->de_inum.no_formal_ino == 0; +} + static inline int __gfs2_dirent_find(const struct gfs2_dirent *dent, const struct qstr *name, int ret) { - if (dent->de_inum.no_addr != 0 && + if (!gfs2_dirent_sentinel(dent) && be32_to_cpu(dent->de_hash) == name->hash && be16_to_cpu(dent->de_name_len) == name->len && memcmp(dent+1, name->name, name->len) == 0) @@ -392,7 +393,7 @@ static int gfs2_dirent_find_space(const struct gfs2_dirent *dent, unsigned actual = GFS2_DIRENT_SIZE(be16_to_cpu(dent->de_name_len)); unsigned totlen = be16_to_cpu(dent->de_rec_len); - if (!dent->de_inum.no_addr) + if (gfs2_dirent_sentinel(dent)) actual = GFS2_DIRENT_SIZE(0); if (totlen - actual >= required) return 1; @@ -409,7 +410,7 @@ static int gfs2_dirent_gather(const struct gfs2_dirent *dent, void *opaque) { struct dirent_gather *g = opaque; - if (dent->de_inum.no_addr) { + if (!gfs2_dirent_sentinel(dent)) { g->pdent[g->offset++] = dent; } return 0; @@ -437,10 +438,10 @@ static int gfs2_check_dirent(struct gfs2_dirent *dent, unsigned int offset, if (unlikely(offset + size > len)) goto error; msg = "zero inode number"; - if (unlikely(!first && !dent->de_inum.no_addr)) + if (unlikely(!first && gfs2_dirent_sentinel(dent))) goto error; msg = "name length is greater than space in dirent"; - if (dent->de_inum.no_addr && + if (!gfs2_dirent_sentinel(dent) && unlikely(sizeof(struct gfs2_dirent)+be16_to_cpu(dent->de_name_len) > size)) goto error; @@ -602,7 +603,7 @@ static int dirent_next(struct gfs2_inode *dip, struct buffer_head *bh, return ret; /* Only the first dent could ever have de_inum.no_addr == 0 */ - if (!tmp->de_inum.no_addr) { + if (gfs2_dirent_sentinel(tmp)) { gfs2_consist_inode(dip); return -EIO; } @@ -625,7 +626,7 @@ static void dirent_del(struct gfs2_inode *dip, struct buffer_head *bh, { u16 cur_rec_len, prev_rec_len; - if (!cur->de_inum.no_addr) { + if (gfs2_dirent_sentinel(cur)) { gfs2_consist_inode(dip); return; } @@ -637,7 +638,8 @@ static void dirent_del(struct gfs2_inode *dip, struct buffer_head *bh, out the inode number and return. */ if (!prev) { - cur->de_inum.no_addr = 0; /* No endianess worries */ + cur->de_inum.no_addr = 0; + cur->de_inum.no_formal_ino = 0; return; } @@ -668,7 +670,7 @@ static struct gfs2_dirent *gfs2_init_dirent(struct inode *inode, struct gfs2_dirent *ndent; unsigned offset = 0, totlen; - if (dent->de_inum.no_addr) + if (!gfs2_dirent_sentinel(dent)) offset = GFS2_DIRENT_SIZE(be16_to_cpu(dent->de_name_len)); totlen = be16_to_cpu(dent->de_rec_len); BUG_ON(offset + name->len > totlen); @@ -717,12 +719,12 @@ 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; @@ -815,7 +817,7 @@ static struct gfs2_leaf *new_leaf(struct inode *inode, struct buffer_head **pbh, leaf = (struct gfs2_leaf *)bh->b_data; leaf->lf_depth = cpu_to_be16(depth); leaf->lf_entries = 0; - leaf->lf_dirent_format = cpu_to_be16(GFS2_FORMAT_DE); + leaf->lf_dirent_format = cpu_to_be32(GFS2_FORMAT_DE); leaf->lf_next = 0; memset(leaf->lf_reserved, 0, sizeof(leaf->lf_reserved)); dent = (struct gfs2_dirent *)(leaf+1); @@ -841,7 +843,8 @@ 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); @@ -897,20 +900,20 @@ 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); dip->i_di.di_size = sdp->sd_sb.sb_bsize / 2; dip->i_di.di_blocks++; + gfs2_set_inode_blocks(&dip->i_inode); dip->i_di.di_flags |= GFS2_DIF_EXHASH; - dip->i_di.di_payload_format = 0; for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ; dip->i_di.di_depth = y; - gfs2_dinode_out(&dip->i_di, dibh->b_data); + gfs2_dinode_out(dip, dibh->b_data); brelse(dibh); @@ -933,7 +936,8 @@ 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; @@ -978,7 +982,7 @@ 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); @@ -1004,7 +1008,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name) if (dirent_next(dip, obh, &next)) next = NULL; - if (dent->de_inum.no_addr && + if (!gfs2_dirent_sentinel(dent) && be32_to_cpu(dent->de_hash) < divider) { struct qstr str; str.name = (char*)(dent+1); @@ -1041,7 +1045,8 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name) error = gfs2_meta_inode_buffer(dip, &dibh); if (!gfs2_assert_withdraw(GFS2_SB(&dip->i_inode), !error)) { dip->i_di.di_blocks++; - gfs2_dinode_out(&dip->i_di, dibh->b_data); + gfs2_set_inode_blocks(&dip->i_inode); + gfs2_dinode_out(dip, dibh->b_data); brelse(dibh); } @@ -1121,7 +1126,7 @@ static int dir_double_exhash(struct gfs2_inode *dip) error = gfs2_meta_inode_buffer(dip, &dibh); if (!gfs2_assert_withdraw(sdp, !error)) { dip->i_di.di_depth++; - gfs2_dinode_out(&dip->i_di, dibh->b_data); + gfs2_dinode_out(dip, dibh->b_data); brelse(dibh); } @@ -1198,7 +1203,7 @@ static int do_filldir_main(struct gfs2_inode *dip, u64 *offset, int *copied) { const struct gfs2_dirent *dent, *dent_next; - struct gfs2_inum inum; + struct gfs2_inum_host inum; u64 off, off_next; unsigned int x, y; int run = 0; @@ -1345,7 +1350,7 @@ 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; @@ -1369,7 +1374,7 @@ 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) @@ -1460,7 +1465,7 @@ out: */ int gfs2_dir_search(struct inode *dir, const struct qstr *name, - struct gfs2_inum *inum, unsigned int *type) + struct gfs2_inum_host *inum, unsigned int *type) { struct buffer_head *bh; struct gfs2_dirent *dent; @@ -1519,7 +1524,8 @@ static int dir_new_leaf(struct inode *inode, const struct qstr *name) return error; gfs2_trans_add_bh(ip->i_gl, bh, 1); ip->i_di.di_blocks++; - gfs2_dinode_out(&ip->i_di, bh->b_data); + gfs2_set_inode_blocks(&ip->i_inode); + gfs2_dinode_out(ip, bh->b_data); brelse(bh); return 0; } @@ -1535,7 +1541,7 @@ static int dir_new_leaf(struct inode *inode, const struct qstr *name) */ int gfs2_dir_add(struct inode *inode, const struct qstr *name, - const struct gfs2_inum *inum, unsigned type) + const struct gfs2_inum_host *inum, unsigned type) { struct gfs2_inode *ip = GFS2_I(inode); struct buffer_head *bh; @@ -1562,8 +1568,8 @@ int gfs2_dir_add(struct inode *inode, const struct qstr *name, break; gfs2_trans_add_bh(ip->i_gl, bh, 1); ip->i_di.di_entries++; - ip->i_di.di_mtime = ip->i_di.di_ctime = get_seconds(); - gfs2_dinode_out(&ip->i_di, bh->b_data); + ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds(); + gfs2_dinode_out(ip, bh->b_data); brelse(bh); error = 0; break; @@ -1648,8 +1654,8 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *name) gfs2_consist_inode(dip); gfs2_trans_add_bh(dip->i_gl, bh, 1); dip->i_di.di_entries--; - dip->i_di.di_mtime = dip->i_di.di_ctime = get_seconds(); - gfs2_dinode_out(&dip->i_di, bh->b_data); + dip->i_inode.i_mtime.tv_sec = dip->i_inode.i_ctime.tv_sec = get_seconds(); + gfs2_dinode_out(dip, bh->b_data); brelse(bh); mark_inode_dirty(&dip->i_inode); @@ -1670,7 +1676,7 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *name) */ int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename, - struct gfs2_inum *inum, unsigned int new_type) + struct gfs2_inum_host *inum, unsigned int new_type) { struct buffer_head *bh; struct gfs2_dirent *dent; @@ -1696,8 +1702,8 @@ int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename, gfs2_trans_add_bh(dip->i_gl, bh, 1); } - dip->i_di.di_mtime = dip->i_di.di_ctime = get_seconds(); - gfs2_dinode_out(&dip->i_di, bh->b_data); + dip->i_inode.i_mtime.tv_sec = dip->i_inode.i_ctime.tv_sec = get_seconds(); + gfs2_dinode_out(dip, bh->b_data); brelse(bh); return 0; } @@ -1719,7 +1725,7 @@ 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; @@ -1739,7 +1745,7 @@ 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) @@ -1863,6 +1869,7 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len, if (!dip->i_di.di_blocks) gfs2_consist_inode(dip); dip->i_di.di_blocks--; + gfs2_set_inode_blocks(&dip->i_inode); } error = gfs2_dir_write_data(dip, ht, index * sizeof(u64), size); @@ -1877,7 +1884,7 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len, goto out_end_trans; gfs2_trans_add_bh(dip->i_gl, dibh, 1); - gfs2_dinode_out(&dip->i_di, dibh->b_data); + gfs2_dinode_out(dip, dibh->b_data); brelse(dibh); out_end_trans: |