git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-18 03:23:53 -04:00
Code Issues Packages Projects Releases Wiki Activity

lib/generic-radix-tree.c: add preallocation

Browse Source 
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet
2024-08-10 23:14:44 -04:00
parent f659463381
commit b3f9da79e7
2 changed files with 37 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
lib/generic-radix-tree.c
View File

@@ -15,27 +15,21 @@ void *__genradix_ptr(struct __genradix *radix, size_t offset)
}
EXPORT_SYMBOL(__genradix_ptr);
static inline struct genradix_node *genradix_alloc_node(gfp_t gfp_mask)
{
return kzalloc(GENRADIX_NODE_SIZE, gfp_mask);
}
static inline void genradix_free_node(struct genradix_node *node)
{
kfree(node);
}
/*
* Returns pointer to the specified byte @offset within @radix, allocating it if
* necessary - newly allocated slots are always zeroed out:
*/
void *__genradix_ptr_alloc(struct __genradix *radix, size_t offset,
struct genradix_node **preallocated,
gfp_t gfp_mask)
{
struct genradix_root *v = READ_ONCE(radix->root);
struct genradix_node *n, *new_node = NULL;
unsigned level;
if (preallocated)
swap(new_node, *preallocated);
/* Increase tree depth if necessary: */
while (1) {
struct genradix_root *r = v, *new_root;
@@ -219,7 +213,7 @@ int __genradix_prealloc(struct __genradix *radix, size_t size,
size_t offset;
for (offset = 0; offset < size; offset += GENRADIX_NODE_SIZE)
if (!__genradix_ptr_alloc(radix, offset, gfp_mask))
if (!__genradix_ptr_alloc(radix, offset, NULL, gfp_mask))
return -ENOMEM;
return 0;