* Copyright (C) 1996, 1997, Olaf Kirch <okir@monad.swb.de>
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/mm.h>
if (p) {
memset(p, 0, sizeof(*p));
INIT_LIST_HEAD(&p->pages);
- if (pagecount < NFS_PAGEVEC_SIZE)
- p->pagevec = &p->page_array[0];
+ if (pagecount <= ARRAY_SIZE(p->page_array))
+ p->pagevec = p->page_array;
else {
- size_t size = ++pagecount * sizeof(struct page *);
- p->pagevec = kzalloc(size, GFP_NOFS);
+ p->pagevec = kcalloc(pagecount, sizeof(struct page *), GFP_NOFS);
if (!p->pagevec) {
mempool_free(p, nfs_commit_mempool);
p = NULL;
if (p) {
memset(p, 0, sizeof(*p));
INIT_LIST_HEAD(&p->pages);
- if (pagecount < NFS_PAGEVEC_SIZE)
- p->pagevec = &p->page_array[0];
+ if (pagecount <= ARRAY_SIZE(p->page_array))
+ p->pagevec = p->page_array;
else {
- size_t size = ++pagecount * sizeof(struct page *);
- p->pagevec = kmalloc(size, GFP_NOFS);
- if (p->pagevec) {
- memset(p->pagevec, 0, size);
- } else {
+ p->pagevec = kcalloc(pagecount, sizeof(struct page *), GFP_NOFS);
+ if (!p->pagevec) {
mempool_free(p, nfs_wdata_mempool);
p = NULL;
}
return p;
}
-void nfs_writedata_free(struct nfs_write_data *p)
+static void nfs_writedata_free(struct nfs_write_data *p)
{
if (p && (p->pagevec != &p->page_array[0]))
kfree(p->pagevec);
nfs_list_add_request(req, &nfsi->dirty);
nfsi->ndirty++;
spin_unlock(&nfsi->req_lock);
- inc_page_state(nr_dirty);
+ inc_zone_page_state(req->wb_page, NR_FILE_DIRTY);
mark_inode_dirty(inode);
}
nfs_list_add_request(req, &nfsi->commit);
nfsi->ncommit++;
spin_unlock(&nfsi->req_lock);
- inc_page_state(nr_unstable);
+ inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
mark_inode_dirty(inode);
}
#endif
return ret;
}
+static void nfs_cancel_dirty_list(struct list_head *head)
+{
+ struct nfs_page *req;
+ while(!list_empty(head)) {
+ req = nfs_list_entry(head->next);
+ nfs_list_remove_request(req);
+ nfs_inode_remove_request(req);
+ nfs_clear_page_writeback(req);
+ }
+}
+
+static void nfs_cancel_commit_list(struct list_head *head)
+{
+ struct nfs_page *req;
+
+ while(!list_empty(head)) {
+ req = nfs_list_entry(head->next);
+ nfs_list_remove_request(req);
+ nfs_inode_remove_request(req);
+ nfs_clear_page_writeback(req);
+ dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ }
+}
+
/*
* nfs_scan_dirty - Scan an inode for dirty requests
* @inode: NFS inode to scan
if (nfsi->ndirty != 0) {
res = nfs_scan_lock_dirty(nfsi, dst, idx_start, npages);
nfsi->ndirty -= res;
- sub_page_state(nr_dirty,res);
if ((nfsi->ndirty == 0) != list_empty(&nfsi->dirty))
printk(KERN_ERR "NFS: desynchronized value of nfs_i.ndirty.\n");
}
int res = 0;
if (nfsi->ncommit != 0) {
- res = nfs_scan_list(&nfsi->commit, dst, idx_start, npages);
+ res = nfs_scan_list(nfsi, &nfsi->commit, dst, idx_start, npages);
nfsi->ncommit -= res;
if ((nfsi->ncommit == 0) != list_empty(&nfsi->commit))
printk(KERN_ERR "NFS: desynchronized value of nfs_i.ncommit.\n");
nfs_list_remove_request(req);
nfs_mark_request_commit(req);
nfs_clear_page_writeback(req);
+ dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
}
return -ENOMEM;
}
{
struct nfs_write_data *data = calldata;
struct nfs_page *req;
- int res = 0;
dprintk("NFS: %4d nfs_commit_done (status %d)\n",
task->tk_pid, task->tk_status);
while (!list_empty(&data->pages)) {
req = nfs_list_entry(data->pages.next);
nfs_list_remove_request(req);
+ dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
dprintk("NFS: commit (%s/%Ld %d@%Ld)",
req->wb_context->dentry->d_inode->i_sb->s_id,
nfs_mark_request_dirty(req);
next:
nfs_clear_page_writeback(req);
- res++;
}
- sub_page_state(nr_unstable,res);
}
static const struct rpc_call_ops nfs_commit_ops = {
pages = nfs_scan_dirty(inode, &head, idx_start, npages);
if (pages != 0) {
spin_unlock(&nfsi->req_lock);
- ret = nfs_flush_list(inode, &head, pages, how);
+ if (how & FLUSH_INVALIDATE)
+ nfs_cancel_dirty_list(&head);
+ else
+ ret = nfs_flush_list(inode, &head, pages, how);
spin_lock(&nfsi->req_lock);
continue;
}
if (nocommit)
break;
- pages = nfs_scan_commit(inode, &head, 0, 0);
+ pages = nfs_scan_commit(inode, &head, idx_start, npages);
if (pages == 0)
break;
+ if (how & FLUSH_INVALIDATE) {
+ spin_unlock(&nfsi->req_lock);
+ nfs_cancel_commit_list(&head);
+ spin_lock(&nfsi->req_lock);
+ continue;
+ }
+ pages += nfs_scan_commit(inode, &head, 0, 0);
spin_unlock(&nfsi->req_lock);
ret = nfs_commit_list(inode, &head, how);
spin_lock(&nfsi->req_lock);
return ret;
}
-int nfs_init_writepagecache(void)
+int __init nfs_init_writepagecache(void)
{
nfs_wdata_cachep = kmem_cache_create("nfs_write_data",
sizeof(struct nfs_write_data),
if (nfs_wdata_cachep == NULL)
return -ENOMEM;
- nfs_wdata_mempool = mempool_create(MIN_POOL_WRITE,
- mempool_alloc_slab,
- mempool_free_slab,
- nfs_wdata_cachep);
+ nfs_wdata_mempool = mempool_create_slab_pool(MIN_POOL_WRITE,
+ nfs_wdata_cachep);
if (nfs_wdata_mempool == NULL)
return -ENOMEM;
- nfs_commit_mempool = mempool_create(MIN_POOL_COMMIT,
- mempool_alloc_slab,
- mempool_free_slab,
- nfs_wdata_cachep);
+ nfs_commit_mempool = mempool_create_slab_pool(MIN_POOL_COMMIT,
+ nfs_wdata_cachep);
if (nfs_commit_mempool == NULL)
return -ENOMEM;