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NFS: cleanup - remove struct nfs_inode->ncommit

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2009-03-11 14:10:29 -04:00
parent a65318bf3a
commit fb8a1f11b6
3 changed files with 17 additions and 12 deletions
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1
fs/nfs/inode.c
View file

@ -1345,7 +1345,6 @@ static void init_once(void *foo)
INIT_LIST_HEAD(&nfsi->access_cache_entry_lru);
INIT_LIST_HEAD(&nfsi->access_cache_inode_lru);
INIT_RADIX_TREE(&nfsi->nfs_page_tree, GFP_ATOMIC);
nfsi->ncommit = 0;
nfsi->npages = 0;
atomic_set(&nfsi->silly_count, 1);
INIT_HLIST_HEAD(&nfsi->silly_list);

25
fs/nfs/write.c
View file

@ -404,7 +404,6 @@ nfs_mark_request_commit(struct nfs_page *req)
struct nfs_inode *nfsi = NFS_I(inode);
spin_lock(&inode->i_lock);
nfsi->ncommit++;
set_bit(PG_CLEAN, &(req)->wb_flags);
radix_tree_tag_set(&nfsi->nfs_page_tree,
req->wb_index,
@ -523,6 +522,12 @@ static void nfs_cancel_commit_list(struct list_head *head)
}
}
static int
nfs_need_commit(struct nfs_inode *nfsi)
{
return radix_tree_tagged(&nfsi->nfs_page_tree, NFS_PAGE_TAG_COMMIT);
}
#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
/*
* nfs_scan_commit - Scan an inode for commit requests
@ -538,16 +543,18 @@ static int
nfs_scan_commit(struct inode *inode, struct list_head *dst, pgoff_t idx_start, unsigned int npages)
{
struct nfs_inode *nfsi = NFS_I(inode);
int res = 0;
if (nfsi->ncommit != 0) {
res = nfs_scan_list(nfsi, dst, idx_start, npages,
NFS_PAGE_TAG_COMMIT);
nfsi->ncommit -= res;
}
return res;
if (!nfs_need_commit(nfsi))
return 0;
return nfs_scan_list(nfsi, dst, idx_start, npages, NFS_PAGE_TAG_COMMIT);
}
#else
static inline int nfs_need_commit(struct nfs_inode *nfsi)
{
return 0;
}
static inline int nfs_scan_commit(struct inode *inode, struct list_head *dst, pgoff_t idx_start, unsigned int npages)
{
return 0;
@ -820,7 +827,7 @@ static int nfs_write_rpcsetup(struct nfs_page *req,
data->args.stable = NFS_UNSTABLE;
if (how & FLUSH_STABLE) {
data->args.stable = NFS_DATA_SYNC;
if (!NFS_I(inode)->ncommit)
if (!nfs_need_commit(NFS_I(inode)))
data->args.stable = NFS_FILE_SYNC;
}

3
include/linux/nfs_fs.h
View file

@ -166,8 +166,7 @@ struct nfs_inode {
*/
struct radix_tree_root nfs_page_tree;
unsigned long ncommit,
npages;
unsigned long npages;
/* Open contexts for shared mmap writes */
struct list_head open_files;