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ubifs: Pass struct ubifs_info to ubifs_assert()

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This allows us to have more context in ubifs_assert()
and take different actions depending on the configuration.

Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Richard Weinberger
2018-07-12 13:01:57 +02:00
parent 54169ddd38
commit 6eb61d587f
31 changed files with 550 additions and 521 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
fs/ubifs/tnc_misc.c
View File

@ -31,19 +31,21 @@
/**
* ubifs_tnc_levelorder_next - next TNC tree element in levelorder traversal.
* @c: UBIFS file-system description object
* @zr: root of the subtree to traverse
* @znode: previous znode
*
* This function implements levelorder TNC traversal. The LNC is ignored.
* Returns the next element or %NULL if @znode is already the last one.
*/
struct ubifs_znode *ubifs_tnc_levelorder_next(struct ubifs_znode *zr,
struct ubifs_znode *ubifs_tnc_levelorder_next(const struct ubifs_info *c,
struct ubifs_znode *zr,
struct ubifs_znode *znode)
{
int level, iip, level_search = 0;
struct ubifs_znode *zn;
ubifs_assert(zr);
ubifs_assert(c, zr);
if (unlikely(!znode))
return zr;
@ -58,7 +60,7 @@ struct ubifs_znode *ubifs_tnc_levelorder_next(struct ubifs_znode *zr,
iip = znode->iip;
while (1) {
ubifs_assert(znode->level <= zr->level);
ubifs_assert(c, znode->level <= zr->level);
/*
* First walk up until there is a znode with next branch to
@ -85,7 +87,7 @@ struct ubifs_znode *ubifs_tnc_levelorder_next(struct ubifs_znode *zr,
level_search = 1;
iip = -1;
znode = ubifs_tnc_find_child(zr, 0);
ubifs_assert(znode);
ubifs_assert(c, znode);
}
/* Switch to the next index */
@ -111,7 +113,7 @@ struct ubifs_znode *ubifs_tnc_levelorder_next(struct ubifs_znode *zr,
}
if (zn) {
ubifs_assert(zn->level >= 0);
ubifs_assert(c, zn->level >= 0);
return zn;
}
}
@ -140,7 +142,7 @@ int ubifs_search_zbranch(const struct ubifs_info *c,
int uninitialized_var(cmp);
const struct ubifs_zbranch *zbr = &znode->zbranch[0];
ubifs_assert(end > beg);
ubifs_assert(c, end > beg);
while (end > beg) {
mid = (beg + end) >> 1;
@ -158,13 +160,13 @@ int ubifs_search_zbranch(const struct ubifs_info *c,
*n = end - 1;
/* The insert point is after *n */
ubifs_assert(*n >= -1 && *n < znode->child_cnt);
ubifs_assert(c, *n >= -1 && *n < znode->child_cnt);
if (*n == -1)
ubifs_assert(keys_cmp(c, key, &zbr[0].key) < 0);
ubifs_assert(c, keys_cmp(c, key, &zbr[0].key) < 0);
else
ubifs_assert(keys_cmp(c, key, &zbr[*n].key) > 0);
ubifs_assert(c, keys_cmp(c, key, &zbr[*n].key) > 0);
if (*n + 1 < znode->child_cnt)
ubifs_assert(keys_cmp(c, key, &zbr[*n + 1].key) < 0);
ubifs_assert(c, keys_cmp(c, key, &zbr[*n + 1].key) < 0);
return 0;
}
@ -195,16 +197,18 @@ struct ubifs_znode *ubifs_tnc_postorder_first(struct ubifs_znode *znode)
/**
* ubifs_tnc_postorder_next - next TNC tree element in postorder traversal.
* @c: UBIFS file-system description object
* @znode: previous znode
*
* This function implements postorder TNC traversal. The LNC is ignored.
* Returns the next element or %NULL if @znode is already the last one.
*/
struct ubifs_znode *ubifs_tnc_postorder_next(struct ubifs_znode *znode)
struct ubifs_znode *ubifs_tnc_postorder_next(const struct ubifs_info *c,
struct ubifs_znode *znode)
{
struct ubifs_znode *zn;
ubifs_assert(znode);
ubifs_assert(c, znode);
if (unlikely(!znode->parent))
return NULL;
@ -220,18 +224,20 @@ struct ubifs_znode *ubifs_tnc_postorder_next(struct ubifs_znode *znode)
/**
* ubifs_destroy_tnc_subtree - destroy all znodes connected to a subtree.
* @c: UBIFS file-system description object
* @znode: znode defining subtree to destroy
*
* This function destroys subtree of the TNC tree. Returns number of clean
* znodes in the subtree.
*/
long ubifs_destroy_tnc_subtree(struct ubifs_znode *znode)
long ubifs_destroy_tnc_subtree(const struct ubifs_info *c,
struct ubifs_znode *znode)
{
struct ubifs_znode *zn = ubifs_tnc_postorder_first(znode);
long clean_freed = 0;
int n;
ubifs_assert(zn);
ubifs_assert(c, zn);
while (1) {
for (n = 0; n < zn->child_cnt; n++) {
if (!zn->zbranch[n].znode)
@ -252,7 +258,7 @@ long ubifs_destroy_tnc_subtree(struct ubifs_znode *znode)
return clean_freed;
}
zn = ubifs_tnc_postorder_next(zn);
zn = ubifs_tnc_postorder_next(c, zn);
}
}
@ -410,7 +416,7 @@ struct ubifs_znode *ubifs_load_znode(struct ubifs_info *c,
int err;
struct ubifs_znode *znode;
ubifs_assert(!zbr->znode);
ubifs_assert(c, !zbr->znode);
/*
* A slab cache is not presently used for znodes because the znode size
* depends on the fanout which is stored in the superblock.