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page cache rewrite

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Matheus
2026-07-28 16:33:55 -03:00
parent ad1740738b
commit 31f9ae17cf
17 changed files with 494 additions and 608 deletions
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kernel-src/include/kernel/vfs.h
+19 -2
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@@ -10,7 +10,10 @@
#include <errno.h>
#include <kernel/cred.h>
#include <kernel/event.h>
#include <trie.h>
#include <errno.h>
#include <kernel/page.h>
#include <list.h>
#define V_ATTR_MODE 1
#define V_ATTR_UID 2
@@ -120,6 +123,7 @@ typedef struct advlock_t {
#define V_FFLAGS_NOCTTY 32
#define V_FFLAGS_NOCACHE 64
#define V_FFLAGS_CLOSE_URGENT 128
#define V_FFLAG_MUST_SYNC 256
typedef struct vnode_t {
struct vops_t *ops;
@@ -135,7 +139,14 @@ typedef struct vnode_t {
void *fifobinding;
};
struct page_t *pages;
bool dirty;
mutex_t writeback_mutex;
mutex_t dirty_list_mutex;
list_node_t vnode_dirty_list_node;
list_t dirty_pages;
pushlock_t pages_lock;
trie_t pages;
mutex_t adv_mutex;
advlock_t *advlock;
@@ -177,6 +188,7 @@ typedef struct vops_t {
int (*rename)(vnode_t *sourcedir, vnode_t *source, char *oldname, vnode_t *targetdir, char *newname, int flags);
int (*getpage)(vnode_t *node, uintmax_t offset, struct page_t *page);
int (*putpage)(vnode_t *node, uintmax_t offset, struct page_t *page);
// node must be unlocked on entry.
int (*sync)(vnode_t *node);
int (*advlock)(vnode_t *node, int op, advlock_t *advlock);
int (*lock)(vnode_t *node);
@@ -208,7 +220,12 @@ typedef struct vops_t {
(vn)->type = t; \
(vn)->vfs = v; \
(vn)->vfsmounted = NULL; \
(vn)->pages = NULL;
trie_init(&(vn)->pages); \
(vn)->pages_lock = 0; \
MUTEX_INIT(&(vn)->writeback_mutex); \
MUTEX_INIT(&(vn)->dirty_list_mutex); \
(vn)->dirty = false; \
list_init(&(vn)->dirty_pages);
#define VOP_LOCK(v) (v)->ops->lock(v)
#define VOP_UNLOCK(v) (v)->ops->unlock(v)