Date: Tue, 4 Jun 2013 15:40:45 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r251383 - head/sys/fs/tmpfs Message-ID: <201306041540.r54FejFq050317@svn.freebsd.org>
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Author: alc Date: Tue Jun 4 15:40:45 2013 New Revision: 251383 URL: http://svnweb.freebsd.org/changeset/base/251383 Log: Eliminate unnecessary vm object locking from tmpfs_nocacheread(). Modified: head/sys/fs/tmpfs/tmpfs_vnops.c Modified: head/sys/fs/tmpfs/tmpfs_vnops.c ============================================================================== --- head/sys/fs/tmpfs/tmpfs_vnops.c Tue Jun 4 15:35:37 2013 (r251382) +++ head/sys/fs/tmpfs/tmpfs_vnops.c Tue Jun 4 15:40:45 2013 (r251383) @@ -490,7 +490,6 @@ tmpfs_nocacheread(vm_object_t tobj, vm_p vm_page_unlock(m); VM_OBJECT_WUNLOCK(tobj); error = uiomove_fromphys(&m, offset, tlen, uio); - VM_OBJECT_WLOCK(tobj); vm_page_lock(m); vm_page_unhold(m); if (m->queue == PQ_NONE) { @@ -500,7 +499,6 @@ tmpfs_nocacheread(vm_object_t tobj, vm_p vm_page_requeue(m); } vm_page_unlock(m); - VM_OBJECT_WUNLOCK(tobj); return (error); }
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