Author: rmacklem
Date: Thu May 5 14:19:37 2011
New Revision: 221498
URL: http://svn.freebsd.org/changeset/base/221498
Log:
MFC: r220928
Remove the nm_mtx mutex locking from the test for
nm_maxfilesize. This value rarely, if ever, changes
and the nm_mtx mutex is locked/unlocked earlier in
the function, which should be sufficient to avoid
getting a stale cached value for it. There is a
discussion w.r.t. what these tests should be, but
I've left them basically the same as the regular
NFS client for now.
Modified:
stable/8/sys/fs/nfsclient/nfs_clbio.c
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
Modified: stable/8/sys/fs/nfsclient/nfs_clbio.c
==============================================================================
--- stable/8/sys/fs/nfsclient/nfs_clbio.c Thu May 5 14:16:40 2011
(r221497)
+++ stable/8/sys/fs/nfsclient/nfs_clbio.c Thu May 5 14:19:37 2011
(r221498)
@@ -943,12 +943,8 @@ flush_and_restart:
if (uio->uio_offset < 0)
return (EINVAL);
tmp_off = uio->uio_offset + uio->uio_resid;
- mtx_lock(&nmp->nm_mtx);
- if (tmp_off > nmp->nm_maxfilesize || tmp_off < uio->uio_offset) {
- mtx_unlock(&nmp->nm_mtx);
+ if (tmp_off > nmp->nm_maxfilesize || tmp_off < uio->uio_offset)
return (EFBIG);
- }
- mtx_unlock(&nmp->nm_mtx);
if (uio->uio_resid == 0)
return (0);
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