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[PATCH] NFS: Replace nfs_page insertion sort with a radix sort

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2005-06-22 17:16:31 +00:00
parent c6a556b88a
commit 3da28eb1c6
5 changed files with 107 additions and 74 deletions
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18
include/linux/nfs_page.h
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@ -22,6 +22,7 @@
/*
* Valid flags for the radix tree
*/
#define NFS_PAGE_TAG_DIRTY 0
#define NFS_PAGE_TAG_WRITEBACK 1
/*
@ -31,6 +32,7 @@
#define PG_NEED_COMMIT 1
#define PG_NEED_RESCHED 2
struct nfs_inode;
struct nfs_page {
struct list_head wb_list, /* Defines state of page: */
*wb_list_head; /* read/write/commit */
@ -59,8 +61,8 @@ extern void nfs_clear_request(struct nfs_page *req);
extern void nfs_release_request(struct nfs_page *req);
extern void nfs_list_add_request(struct nfs_page *, struct list_head *);
extern int nfs_scan_lock_dirty(struct nfs_inode *nfsi, struct list_head *dst,
unsigned long idx_start, unsigned int npages);
extern int nfs_scan_list(struct list_head *, struct list_head *,
unsigned long, unsigned int);
extern int nfs_coalesce_requests(struct list_head *, struct list_head *,
@ -94,6 +96,18 @@ nfs_lock_request(struct nfs_page *req)
return 1;
}
/**
* nfs_list_add_request - Insert a request into a list
* @req: request
* @head: head of list into which to insert the request.
*/
static inline void
nfs_list_add_request(struct nfs_page *req, struct list_head *head)
{
list_add_tail(&req->wb_list, head);
req->wb_list_head = head;
}
/**
* nfs_list_remove_request - Remove a request from its wb_list