Changeset 61eb2ce2 in mainline for kernel/genarch


Ignore:
Timestamp:
2023-02-05T22:03:19Z (3 years ago)
Author:
Jiří Zárevúcky <zarevucky.jiri@…>
Branches:
master, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
b596d0d
Parents:
07700ed
git-author:
Jiří Zárevúcky <zarevucky.jiri@…> (2023-02-05 22:01:46)
git-committer:
Jiří Zárevúcky <zarevucky.jiri@…> (2023-02-05 22:03:19)
Message:

Make hash table operations immutable, because global mutable state is evil

Location:
kernel/genarch
Files:
6 edited

Legend:

Unmodified
Added
Removed

  • kernel/genarch/include/genarch/mm/page_ht.h

    r07700ed r61eb2ce2  
    5757#define PTE_EXECUTABLE(pte)  ((pte)->x != 0)
    5858
    59 extern as_operations_t as_ht_operations;
    60 extern page_mapping_operations_t ht_mapping_operations;
     59extern const as_operations_t as_ht_operations;
     60extern const page_mapping_operations_t ht_mapping_operations;
    6161
    6262extern slab_cache_t *pte_cache;
    6363extern hash_table_t page_ht;
    64 extern hash_table_ops_t ht_ops;
     64extern const hash_table_ops_t ht_ops;
    6565
    6666#endif

  • kernel/genarch/include/genarch/mm/page_pt.h

    r07700ed r61eb2ce2  
    140140#define PTE_EXECUTABLE(p)  PTE_EXECUTABLE_ARCH((p))
    141141
    142 extern as_operations_t as_pt_operations;
    143 extern page_mapping_operations_t pt_mapping_operations;
     142extern const as_operations_t as_pt_operations;
     143extern const page_mapping_operations_t pt_mapping_operations;
    144144
    145145extern void page_mapping_insert_pt(as_t *, uintptr_t, uintptr_t, unsigned int);

  • kernel/genarch/src/mm/as_ht.c

    r07700ed r61eb2ce2  
    5353static bool ht_locked(as_t *);
    5454
    55 as_operations_t as_ht_operations = {
     55const as_operations_t as_ht_operations = {
    5656        .page_table_create = ht_create,
    5757        .page_table_destroy = ht_destroy,

  • kernel/genarch/src/mm/as_pt.c

    r07700ed r61eb2ce2  
    5454static bool pt_locked(as_t *);
    5555
    56 as_operations_t as_pt_operations = {
     56const as_operations_t as_pt_operations = {
    5757        .page_table_create = ptl0_create,
    5858        .page_table_destroy = ptl0_destroy,

  • kernel/genarch/src/mm/page_ht.c

    r07700ed r61eb2ce2  
    8282
    8383/** Hash table operations for page hash table. */
    84 hash_table_ops_t ht_ops = {
     84const hash_table_ops_t ht_ops = {
    8585        .hash = ht_hash,
    8686        .key_hash = ht_key_hash,
    … …  
    9090
    9191/** Page mapping operations for page hash table architectures. */
    92 page_mapping_operations_t ht_mapping_operations = {
     92const page_mapping_operations_t ht_mapping_operations = {
    9393        .mapping_insert = ht_mapping_insert,
    9494        .mapping_remove = ht_mapping_remove,

  • kernel/genarch/src/mm/page_pt.c

    r07700ed r61eb2ce2  
    5858static void pt_mapping_make_global(uintptr_t, size_t);
    5959
    60 page_mapping_operations_t pt_mapping_operations = {
     60const page_mapping_operations_t pt_mapping_operations = {
    6161        .mapping_insert = pt_mapping_insert,
    6262        .mapping_remove = pt_mapping_remove,
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