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nfs: nfs_redirty_request

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Both flush functions have the same error handling routine.  Pull
it out as a function.

Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Fred 2008-03-19 11:24:38 -04:00 committed by Trond Myklebust
parent c7c350e92a
commit 6d884e8fc8
1 changed files with 14 additions and 9 deletions
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23
fs/nfs/write.c
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@ -282,8 +282,6 @@ static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
spin_unlock(&inode->i_lock);
if (!nfs_pageio_add_request(pgio, req)) {
nfs_redirty_request(req);
nfs_end_page_writeback(page);
nfs_clear_page_tag_locked(req);
return pgio->pg_error;
}
return 0;
@ -402,7 +400,7 @@ static void nfs_inode_remove_request(struct nfs_page *req)
}
static void
nfs_redirty_request(struct nfs_page *req)
nfs_mark_request_dirty(struct nfs_page *req)
{
__set_page_dirty_nobuffers(req->wb_page);
}
@ -456,7 +454,7 @@ int nfs_reschedule_unstable_write(struct nfs_page *req)
return 1;
}
if (test_and_clear_bit(PG_NEED_RESCHED, &req->wb_flags)) {
nfs_redirty_request(req);
nfs_mark_request_dirty(req);
return 1;
}
return 0;
@ -847,6 +845,17 @@ static void nfs_write_rpcsetup(struct nfs_page *req,
rpc_put_task(task);
}
/* If a nfs_flush_* function fails, it should remove reqs from @head and
* call this on each, which will prepare them to be retried on next
* writeback using standard nfs.
*/
static void nfs_redirty_request(struct nfs_page *req)
{
nfs_mark_request_dirty(req);
nfs_end_page_writeback(req->wb_page);
nfs_clear_page_tag_locked(req);
}
/*
* Generate multiple small requests to write out a single
* contiguous dirty area on one page.
@ -902,8 +911,6 @@ out_bad:
nfs_writedata_release(data);
}
nfs_redirty_request(req);
nfs_end_page_writeback(req->wb_page);
nfs_clear_page_tag_locked(req);
return -ENOMEM;
}
@ -944,8 +951,6 @@ static int nfs_flush_one(struct inode *inode, struct list_head *head, unsigned i
req = nfs_list_entry(head->next);
nfs_list_remove_request(req);
nfs_redirty_request(req);
nfs_end_page_writeback(req->wb_page);
nfs_clear_page_tag_locked(req);
}
return -ENOMEM;
}
@ -1298,7 +1303,7 @@ static void nfs_commit_done(struct rpc_task *task, void *calldata)
}
/* We have a mismatch. Write the page again */
dprintk(" mismatch\n");
nfs_redirty_request(req);
nfs_mark_request_dirty(req);
next:
nfs_clear_page_tag_locked(req);
}