GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-07-23 15:27:29 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

NFS: Convert struct nfs_page to use krefs

Browse source 
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2007-06-17 13:26:38 -04:00
parent a50f7951a3
commit c03b402461
3 changed files with 16 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

10
include/linux/nfs_page.h
View file

@ -16,7 +16,7 @@
#include <linux/sunrpc/auth.h>
#include <linux/nfs_xdr.h>
#include <asm/atomic.h>
#include <linux/kref.h>
/*
* Valid flags for the radix tree
@ -42,7 +42,7 @@ struct nfs_page {
unsigned int wb_offset, /* Offset & ~PAGE_CACHE_MASK */
wb_pgbase, /* Start of page data */
wb_bytes; /* Length of request */
atomic_t wb_count; /* reference count */
struct kref wb_kref; /* reference count */
unsigned long wb_flags;
struct nfs_writeverf wb_verf; /* Commit cookie */
};
@ -89,7 +89,7 @@ extern void nfs_clear_page_writeback(struct nfs_page *req);
/*
* Lock the page of an asynchronous request without incrementing the wb_count
* Lock the page of an asynchronous request without getting a new reference
*/
static inline int
nfs_lock_request_dontget(struct nfs_page *req)
@ -98,14 +98,14 @@ nfs_lock_request_dontget(struct nfs_page *req)
}
/*
* Lock the page of an asynchronous request
* Lock the page of an asynchronous request and take a reference
*/
static inline int
nfs_lock_request(struct nfs_page *req)
{
if (test_and_set_bit(PG_BUSY, &req->wb_flags))
return 0;
atomic_inc(&req->wb_count);
kref_get(&req->wb_kref);
return 1;
}