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nfsd: clean up raparams handling

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Refactor the raparam hash helpers to just deal with the raparms,
and keep opening/closing files separate from that.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Christoph Hellwig
2015-06-18 16:44:58 +02:00
committed by J. Bruce Fields
parent 97b1f9aae9
commit e749a4621e
3 changed files with 43 additions and 55 deletions
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24
fs/nfsd/nfs4xdr.c
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@@ -33,6 +33,7 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/file.h>
#include <linux/slab.h>
#include <linux/namei.h>
#include <linux/statfs.h>
@@ -3419,7 +3420,7 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr,
struct file *file = read->rd_filp;
struct svc_fh *fhp = read->rd_fhp;
int starting_len = xdr->buf->len;
struct raparms *ra;
struct raparms *ra = NULL;
__be32 *p;
__be32 err;
@@ -3441,23 +3442,30 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr,
maxcount = min_t(unsigned long, maxcount, (xdr->buf->buflen - xdr->buf->len));
maxcount = min_t(unsigned long, maxcount, read->rd_length);
if (read->rd_filp)
if (read->rd_filp) {
err = nfsd_permission(resp->rqstp, fhp->fh_export,
fhp->fh_dentry,
NFSD_MAY_READ|NFSD_MAY_OWNER_OVERRIDE);
else
err = nfsd_get_tmp_read_open(resp->rqstp, read->rd_fhp,
&file, &ra);
if (err)
goto err_truncate;
if (err)
goto err_truncate;
} else {
err = nfsd_open(resp->rqstp, fhp, S_IFREG, NFSD_MAY_READ,
&file);
if (err)
goto err_truncate;
ra = nfsd_init_raparms(file);
}
if (file->f_op->splice_read && test_bit(RQ_SPLICE_OK, &resp->rqstp->rq_flags))
err = nfsd4_encode_splice_read(resp, read, file, maxcount);
else
err = nfsd4_encode_readv(resp, read, file, maxcount);
if (ra)
nfsd_put_raparams(file, ra);
if (!read->rd_filp)
nfsd_put_tmp_read_open(file, ra);
fput(file);
err_truncate:
if (err)