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NFS: avoid some stat gathering for direct io 

Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Fred Isaman 2012-04-20 14:47:56 -04:00 committed by Trond Myklebust
parent b359f9d09b
commit 56f9cd684d
1 changed files with 12 additions and 6 deletions
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18
fs/nfs/write.c
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@ -472,9 +472,13 @@ nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
nfs_list_add_request(req, dst);
cinfo->mds->ncommit++;
spin_unlock(cinfo->lock);
inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
inc_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_RECLAIMABLE);
__mark_inode_dirty(req->wb_context->dentry->d_inode, I_DIRTY_DATASYNC);
if (!cinfo->dreq) {
inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
inc_bdi_stat(req->wb_page->mapping->backing_dev_info,
BDI_RECLAIMABLE);
__mark_inode_dirty(req->wb_context->dentry->d_inode,
I_DIRTY_DATASYNC);
}
}
EXPORT_SYMBOL_GPL(nfs_request_add_commit_list);
@ -1455,9 +1459,11 @@ void nfs_retry_commit(struct list_head *page_list,
req = nfs_list_entry(page_list->next);
nfs_list_remove_request(req);
nfs_mark_request_commit(req, lseg, cinfo);
dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
dec_bdi_stat(req->wb_page->mapping->backing_dev_info,
BDI_RECLAIMABLE);
if (!cinfo->dreq) {
dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
dec_bdi_stat(req->wb_page->mapping->backing_dev_info,
BDI_RECLAIMABLE);
}
nfs_unlock_request(req);
}
}