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Implement FS defragmentation

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This commit is contained in:
Vitaliy Filippov
2024-07-12 16:11:35 +03:00
parent 1771d2ef36
commit 990c3ba7eb
16 changed files with 893 additions and 133 deletions
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src/nfs/nfs_kv_create.cpp
+15 -11
View File
@@ -9,9 +9,9 @@
#include "nfs_proxy.h"
#include "nfs_kv.h"
void allocate_new_id(nfs_client_t *self, pool_id_t pool_id, std::function<void(int res, uint64_t new_id)> cb)
void allocate_new_id(nfs_proxy_t *proxy, pool_id_t pool_id, std::function<void(int res, uint64_t new_id)> cb)
{
auto & idgen = self->parent->kvfs->idgen[pool_id];
auto & idgen = proxy->kvfs->idgen[pool_id];
if (idgen.unallocated_ids.size())
{
auto new_id = idgen.unallocated_ids.back();
@@ -31,9 +31,9 @@ void allocate_new_id(nfs_client_t *self, pool_id_t pool_id, std::function<void(i
cb(-ENOSPC, 0);
return;
}
self->parent->db->get((pool_id ? "id"+std::to_string(pool_id) : "id"), [=](int res, const std::string & prev_str)
proxy->db->get((pool_id ? "id"+std::to_string(pool_id) : "id"), [=](int res, const std::string & prev_str)
{
auto & idgen = self->parent->kvfs->idgen[pool_id];
auto & idgen = proxy->kvfs->idgen[pool_id];
if (res < 0 && res != -ENOENT)
{
cb(res, 0);
@@ -49,17 +49,21 @@ void allocate_new_id(nfs_client_t *self, pool_id_t pool_id, std::function<void(i
{
prev_val = idgen.min_id;
}
uint64_t new_val = prev_val + self->parent->kvfs->id_alloc_batch_size;
if (new_val >= self->parent->kvfs->fs_inode_count)
uint64_t new_val = prev_val + proxy->kvfs->id_alloc_batch_size;
if (new_val >= proxy->kvfs->fs_inode_count)
{
new_val = self->parent->kvfs->fs_inode_count;
new_val = proxy->kvfs->fs_inode_count;
}
self->parent->db->set((pool_id ? "id"+std::to_string(pool_id) : "id"), std::to_string(new_val), [=](int res)
if (!pool_id && res == -ENOENT)
{
proxy->db->set("version", "1", [](int){});
}
proxy->db->set((pool_id ? "id"+std::to_string(pool_id) : "id"), std::to_string(new_val), [=](int res)
{
if (res == -EAGAIN)
{
// CAS failure - retry
allocate_new_id(self, pool_id, cb);
allocate_new_id(proxy, pool_id, cb);
}
else if (res < 0)
{
@@ -67,7 +71,7 @@ void allocate_new_id(nfs_client_t *self, pool_id_t pool_id, std::function<void(i
}
else
{
auto & idgen = self->parent->kvfs->idgen[pool_id];
auto & idgen = proxy->kvfs->idgen[pool_id];
idgen.next_id = prev_val+2;
idgen.allocated_id = new_val;
cb(0, INODE_WITH_POOL(pool_id, prev_val+1));
@@ -125,7 +129,7 @@ resume_1:
st->pool_id = kv_map_type(st->attrs["type"].string_value()) == NF3REG
? st->self->parent->default_pool_id
: 0;
allocate_new_id(st->self, st->pool_id, [st](int res, uint64_t new_id)
allocate_new_id(st->self->parent, st->pool_id, [st](int res, uint64_t new_id)
{
st->res = res;
st->new_id = new_id;