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path: root/fs/ubifs/lpt.c
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Diffstat (limited to 'fs/ubifs/lpt.c')
-rw-r--r--fs/ubifs/lpt.c134
1 files changed, 70 insertions, 64 deletions
diff --git a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c
index b2792e84d24..d46b19ec181 100644
--- a/fs/ubifs/lpt.c
+++ b/fs/ubifs/lpt.c
@@ -46,6 +46,7 @@
#include "ubifs.h"
#include <linux/crc16.h>
#include <linux/math64.h>
+#include <linux/slab.h>
/**
* do_calc_lpt_geom - calculate sizes for the LPT area.
@@ -700,8 +701,7 @@ int ubifs_create_dflt_lpt(struct ubifs_info *c, int *main_lebs, int lpt_first,
alen = ALIGN(len, c->min_io_size);
set_ltab(c, lnum, c->leb_size - alen, alen - len);
memset(p, 0xff, alen - len);
- err = ubi_leb_change(c->ubi, lnum++, buf, alen,
- UBI_SHORTTERM);
+ err = ubifs_leb_change(c, lnum++, buf, alen);
if (err)
goto out;
p = buf;
@@ -731,8 +731,7 @@ int ubifs_create_dflt_lpt(struct ubifs_info *c, int *main_lebs, int lpt_first,
set_ltab(c, lnum, c->leb_size - alen,
alen - len);
memset(p, 0xff, alen - len);
- err = ubi_leb_change(c->ubi, lnum++, buf, alen,
- UBI_SHORTTERM);
+ err = ubifs_leb_change(c, lnum++, buf, alen);
if (err)
goto out;
p = buf;
@@ -779,8 +778,7 @@ int ubifs_create_dflt_lpt(struct ubifs_info *c, int *main_lebs, int lpt_first,
alen = ALIGN(len, c->min_io_size);
set_ltab(c, lnum, c->leb_size - alen, alen - len);
memset(p, 0xff, alen - len);
- err = ubi_leb_change(c->ubi, lnum++, buf, alen,
- UBI_SHORTTERM);
+ err = ubifs_leb_change(c, lnum++, buf, alen);
if (err)
goto out;
p = buf;
@@ -805,7 +803,7 @@ int ubifs_create_dflt_lpt(struct ubifs_info *c, int *main_lebs, int lpt_first,
alen = ALIGN(len, c->min_io_size);
set_ltab(c, lnum, c->leb_size - alen, alen - len);
memset(p, 0xff, alen - len);
- err = ubi_leb_change(c->ubi, lnum++, buf, alen, UBI_SHORTTERM);
+ err = ubifs_leb_change(c, lnum++, buf, alen);
if (err)
goto out;
p = buf;
@@ -825,7 +823,7 @@ int ubifs_create_dflt_lpt(struct ubifs_info *c, int *main_lebs, int lpt_first,
/* Write remaining buffer */
memset(p, 0xff, alen - len);
- err = ubi_leb_change(c->ubi, lnum, buf, alen, UBI_SHORTTERM);
+ err = ubifs_leb_change(c, lnum, buf, alen);
if (err)
goto out;
@@ -925,7 +923,7 @@ static int check_lpt_crc(void *buf, int len)
if (crc != calc_crc) {
ubifs_err("invalid crc in LPT node: crc %hx calc %hx", crc,
calc_crc);
- dbg_dump_stack();
+ dump_stack();
return -EINVAL;
}
return 0;
@@ -948,7 +946,7 @@ static int check_lpt_type(uint8_t **addr, int *pos, int type)
if (node_type != type) {
ubifs_err("invalid type (%d) in LPT node type %d", node_type,
type);
- dbg_dump_stack();
+ dump_stack();
return -EINVAL;
}
return 0;
@@ -1221,7 +1219,7 @@ int ubifs_read_nnode(struct ubifs_info *c, struct ubifs_nnode *parent, int iip)
if (c->big_lpt)
nnode->num = calc_nnode_num_from_parent(c, parent, iip);
} else {
- err = ubi_read(c->ubi, lnum, buf, offs, c->nnode_sz);
+ err = ubifs_leb_read(c, lnum, buf, offs, c->nnode_sz, 1);
if (err)
goto out;
err = ubifs_unpack_nnode(c, buf, nnode);
@@ -1246,6 +1244,7 @@ int ubifs_read_nnode(struct ubifs_info *c, struct ubifs_nnode *parent, int iip)
out:
ubifs_err("error %d reading nnode at %d:%d", err, lnum, offs);
+ dump_stack();
kfree(nnode);
return err;
}
@@ -1269,10 +1268,9 @@ static int read_pnode(struct ubifs_info *c, struct ubifs_nnode *parent, int iip)
lnum = branch->lnum;
offs = branch->offs;
pnode = kzalloc(sizeof(struct ubifs_pnode), GFP_NOFS);
- if (!pnode) {
- err = -ENOMEM;
- goto out;
- }
+ if (!pnode)
+ return -ENOMEM;
+
if (lnum == 0) {
/*
* This pnode was not written which just means that the LEB
@@ -1290,7 +1288,7 @@ static int read_pnode(struct ubifs_info *c, struct ubifs_nnode *parent, int iip)
lprops->flags = ubifs_categorize_lprops(c, lprops);
}
} else {
- err = ubi_read(c->ubi, lnum, buf, offs, c->pnode_sz);
+ err = ubifs_leb_read(c, lnum, buf, offs, c->pnode_sz, 1);
if (err)
goto out;
err = unpack_pnode(c, buf, pnode);
@@ -1311,8 +1309,9 @@ static int read_pnode(struct ubifs_info *c, struct ubifs_nnode *parent, int iip)
out:
ubifs_err("error %d reading pnode at %d:%d", err, lnum, offs);
- dbg_dump_pnode(c, pnode, parent, iip);
- dbg_msg("calc num: %d", calc_pnode_num_from_parent(c, parent, iip));
+ ubifs_dump_pnode(c, pnode, parent, iip);
+ dump_stack();
+ ubifs_err("calc num: %d", calc_pnode_num_from_parent(c, parent, iip));
kfree(pnode);
return err;
}
@@ -1331,7 +1330,7 @@ static int read_ltab(struct ubifs_info *c)
buf = vmalloc(c->ltab_sz);
if (!buf)
return -ENOMEM;
- err = ubi_read(c->ubi, c->ltab_lnum, buf, c->ltab_offs, c->ltab_sz);
+ err = ubifs_leb_read(c, c->ltab_lnum, buf, c->ltab_offs, c->ltab_sz, 1);
if (err)
goto out;
err = unpack_ltab(c, buf);
@@ -1354,7 +1353,8 @@ static int read_lsave(struct ubifs_info *c)
buf = vmalloc(c->lsave_sz);
if (!buf)
return -ENOMEM;
- err = ubi_read(c->ubi, c->lsave_lnum, buf, c->lsave_offs, c->lsave_sz);
+ err = ubifs_leb_read(c, c->lsave_lnum, buf, c->lsave_offs,
+ c->lsave_sz, 1);
if (err)
goto out;
err = unpack_lsave(c, buf);
@@ -1362,6 +1362,7 @@ static int read_lsave(struct ubifs_info *c)
goto out;
for (i = 0; i < c->lsave_cnt; i++) {
int lnum = c->lsave[i];
+ struct ubifs_lprops *lprops;
/*
* Due to automatic resizing, the values in the lsave table
@@ -1369,7 +1370,11 @@ static int read_lsave(struct ubifs_info *c)
*/
if (lnum >= c->leb_cnt)
continue;
- ubifs_lpt_lookup(c, lnum);
+ lprops = ubifs_lpt_lookup(c, lnum);
+ if (IS_ERR(lprops)) {
+ err = PTR_ERR(lprops);
+ goto out;
+ }
}
out:
vfree(buf);
@@ -1456,13 +1461,13 @@ struct ubifs_lprops *ubifs_lpt_lookup(struct ubifs_info *c, int lnum)
shft -= UBIFS_LPT_FANOUT_SHIFT;
nnode = ubifs_get_nnode(c, nnode, iip);
if (IS_ERR(nnode))
- return ERR_PTR(PTR_ERR(nnode));
+ return ERR_CAST(nnode);
}
iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1));
shft -= UBIFS_LPT_FANOUT_SHIFT;
pnode = ubifs_get_pnode(c, nnode, iip);
if (IS_ERR(pnode))
- return ERR_PTR(PTR_ERR(pnode));
+ return ERR_CAST(pnode);
iip = (i & (UBIFS_LPT_FANOUT - 1));
dbg_lp("LEB %d, free %d, dirty %d, flags %d", lnum,
pnode->lprops[iip].free, pnode->lprops[iip].dirty,
@@ -1585,7 +1590,7 @@ struct ubifs_lprops *ubifs_lpt_lookup_dirty(struct ubifs_info *c, int lnum)
nnode = c->nroot;
nnode = dirty_cow_nnode(c, nnode);
if (IS_ERR(nnode))
- return ERR_PTR(PTR_ERR(nnode));
+ return ERR_CAST(nnode);
i = lnum - c->main_first;
shft = c->lpt_hght * UBIFS_LPT_FANOUT_SHIFT;
for (h = 1; h < c->lpt_hght; h++) {
@@ -1593,19 +1598,19 @@ struct ubifs_lprops *ubifs_lpt_lookup_dirty(struct ubifs_info *c, int lnum)
shft -= UBIFS_LPT_FANOUT_SHIFT;
nnode = ubifs_get_nnode(c, nnode, iip);
if (IS_ERR(nnode))
- return ERR_PTR(PTR_ERR(nnode));
+ return ERR_CAST(nnode);
nnode = dirty_cow_nnode(c, nnode);
if (IS_ERR(nnode))
- return ERR_PTR(PTR_ERR(nnode));
+ return ERR_CAST(nnode);
}
iip = ((i >> shft) & (UBIFS_LPT_FANOUT - 1));
shft -= UBIFS_LPT_FANOUT_SHIFT;
pnode = ubifs_get_pnode(c, nnode, iip);
if (IS_ERR(pnode))
- return ERR_PTR(PTR_ERR(pnode));
+ return ERR_CAST(pnode);
pnode = dirty_cow_pnode(c, pnode);
if (IS_ERR(pnode))
- return ERR_PTR(PTR_ERR(pnode));
+ return ERR_CAST(pnode);
iip = (i & (UBIFS_LPT_FANOUT - 1));
dbg_lp("LEB %d, free %d, dirty %d, flags %d", lnum,
pnode->lprops[iip].free, pnode->lprops[iip].dirty,
@@ -1732,16 +1737,23 @@ int ubifs_lpt_init(struct ubifs_info *c, int rd, int wr)
if (rd) {
err = lpt_init_rd(c);
if (err)
- return err;
+ goto out_err;
}
if (wr) {
err = lpt_init_wr(c);
if (err)
- return err;
+ goto out_err;
}
return 0;
+
+out_err:
+ if (wr)
+ ubifs_lpt_free(c, 1);
+ if (rd)
+ ubifs_lpt_free(c, 0);
+ return err;
}
/**
@@ -1809,8 +1821,8 @@ static struct ubifs_nnode *scan_get_nnode(struct ubifs_info *c,
if (c->big_lpt)
nnode->num = calc_nnode_num_from_parent(c, parent, iip);
} else {
- err = ubi_read(c->ubi, branch->lnum, buf, branch->offs,
- c->nnode_sz);
+ err = ubifs_leb_read(c, branch->lnum, buf, branch->offs,
+ c->nnode_sz, 1);
if (err)
return ERR_PTR(err);
err = ubifs_unpack_nnode(c, buf, nnode);
@@ -1878,8 +1890,8 @@ static struct ubifs_pnode *scan_get_pnode(struct ubifs_info *c,
ubifs_assert(branch->lnum >= c->lpt_first &&
branch->lnum <= c->lpt_last);
ubifs_assert(branch->offs >= 0 && branch->offs < c->leb_size);
- err = ubi_read(c->ubi, branch->lnum, buf, branch->offs,
- c->pnode_sz);
+ err = ubifs_leb_read(c, branch->lnum, buf, branch->offs,
+ c->pnode_sz, 1);
if (err)
return ERR_PTR(err);
err = unpack_pnode(c, buf, pnode);
@@ -1978,12 +1990,11 @@ again:
if (path[h].in_tree)
continue;
- nnode = kmalloc(sz, GFP_NOFS);
+ nnode = kmemdup(&path[h].nnode, sz, GFP_NOFS);
if (!nnode) {
err = -ENOMEM;
goto out;
}
- memcpy(nnode, &path[h].nnode, sz);
parent = nnode->parent;
parent->nbranch[nnode->iip].nnode = nnode;
path[h].ptr.nnode = nnode;
@@ -1996,12 +2007,11 @@ again:
const size_t sz = sizeof(struct ubifs_pnode);
struct ubifs_nnode *parent;
- pnode = kmalloc(sz, GFP_NOFS);
+ pnode = kmemdup(&path[h].pnode, sz, GFP_NOFS);
if (!pnode) {
err = -ENOMEM;
goto out;
}
- memcpy(pnode, &path[h].pnode, sz);
parent = pnode->parent;
parent->nbranch[pnode->iip].pnode = pnode;
path[h].ptr.pnode = pnode;
@@ -2074,8 +2084,6 @@ out:
return err;
}
-#ifdef CONFIG_UBIFS_FS_DEBUG
-
/**
* dbg_chk_pnode - check a pnode.
* @c: the UBIFS file-system description object
@@ -2090,8 +2098,8 @@ static int dbg_chk_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
int i;
if (pnode->num != col) {
- dbg_err("pnode num %d expected %d parent num %d iip %d",
- pnode->num, col, pnode->parent->num, pnode->iip);
+ ubifs_err("pnode num %d expected %d parent num %d iip %d",
+ pnode->num, col, pnode->parent->num, pnode->iip);
return -EINVAL;
}
for (i = 0; i < UBIFS_LPT_FANOUT; i++) {
@@ -2105,14 +2113,14 @@ static int dbg_chk_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
if (lnum >= c->leb_cnt)
continue;
if (lprops->lnum != lnum) {
- dbg_err("bad LEB number %d expected %d",
- lprops->lnum, lnum);
+ ubifs_err("bad LEB number %d expected %d",
+ lprops->lnum, lnum);
return -EINVAL;
}
if (lprops->flags & LPROPS_TAKEN) {
if (cat != LPROPS_UNCAT) {
- dbg_err("LEB %d taken but not uncat %d",
- lprops->lnum, cat);
+ ubifs_err("LEB %d taken but not uncat %d",
+ lprops->lnum, cat);
return -EINVAL;
}
continue;
@@ -2124,8 +2132,8 @@ static int dbg_chk_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
case LPROPS_FRDI_IDX:
break;
default:
- dbg_err("LEB %d index but cat %d",
- lprops->lnum, cat);
+ ubifs_err("LEB %d index but cat %d",
+ lprops->lnum, cat);
return -EINVAL;
}
} else {
@@ -2137,8 +2145,8 @@ static int dbg_chk_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
case LPROPS_FREEABLE:
break;
default:
- dbg_err("LEB %d not index but cat %d",
- lprops->lnum, cat);
+ ubifs_err("LEB %d not index but cat %d",
+ lprops->lnum, cat);
return -EINVAL;
}
}
@@ -2178,24 +2186,24 @@ static int dbg_chk_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
break;
}
if (!found) {
- dbg_err("LEB %d cat %d not found in cat heap/list",
- lprops->lnum, cat);
+ ubifs_err("LEB %d cat %d not found in cat heap/list",
+ lprops->lnum, cat);
return -EINVAL;
}
switch (cat) {
case LPROPS_EMPTY:
if (lprops->free != c->leb_size) {
- dbg_err("LEB %d cat %d free %d dirty %d",
- lprops->lnum, cat, lprops->free,
- lprops->dirty);
+ ubifs_err("LEB %d cat %d free %d dirty %d",
+ lprops->lnum, cat, lprops->free,
+ lprops->dirty);
return -EINVAL;
}
case LPROPS_FREEABLE:
case LPROPS_FRDI_IDX:
if (lprops->free + lprops->dirty != c->leb_size) {
- dbg_err("LEB %d cat %d free %d dirty %d",
- lprops->lnum, cat, lprops->free,
- lprops->dirty);
+ ubifs_err("LEB %d cat %d free %d dirty %d",
+ lprops->lnum, cat, lprops->free,
+ lprops->dirty);
return -EINVAL;
}
}
@@ -2219,7 +2227,7 @@ int dbg_check_lpt_nodes(struct ubifs_info *c, struct ubifs_cnode *cnode,
struct ubifs_cnode *cn;
int num, iip = 0, err;
- if (!(ubifs_chk_flags & UBIFS_CHK_LPROPS))
+ if (!dbg_is_chk_lprops(c))
return 0;
while (cnode) {
@@ -2229,9 +2237,9 @@ int dbg_check_lpt_nodes(struct ubifs_info *c, struct ubifs_cnode *cnode,
/* cnode is a nnode */
num = calc_nnode_num(row, col);
if (cnode->num != num) {
- dbg_err("nnode num %d expected %d "
- "parent num %d iip %d", cnode->num, num,
- (nnode ? nnode->num : 0), cnode->iip);
+ ubifs_err("nnode num %d expected %d parent num %d iip %d",
+ cnode->num, num,
+ (nnode ? nnode->num : 0), cnode->iip);
return -EINVAL;
}
nn = (struct ubifs_nnode *)cnode;
@@ -2268,5 +2276,3 @@ int dbg_check_lpt_nodes(struct ubifs_info *c, struct ubifs_cnode *cnode,
}
return 0;
}
-
-#endif /* CONFIG_UBIFS_FS_DEBUG */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 11:01:44 +0000