Date: Wed, 19 Jun 2013 20:07:56 +0000 (UTC) From: Attilio Rao <attilio@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r252004 - user/attilio/vmobj-readlock/sys/fs/tmpfs Message-ID: <201306192007.r5JK7uLv055680@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: attilio Date: Wed Jun 19 20:07:56 2013 New Revision: 252004 URL: http://svnweb.freebsd.org/changeset/base/252004 Log: kern_sendfile() doesn't sbusy the page any longer, so remove a "nomore" relevant piece of code. Sponsored by: EMC / Isilon storage division Modified: user/attilio/vmobj-readlock/sys/fs/tmpfs/tmpfs_vnops.c Modified: user/attilio/vmobj-readlock/sys/fs/tmpfs/tmpfs_vnops.c ============================================================================== --- user/attilio/vmobj-readlock/sys/fs/tmpfs/tmpfs_vnops.c Wed Jun 19 19:44:57 2013 (r252003) +++ user/attilio/vmobj-readlock/sys/fs/tmpfs/tmpfs_vnops.c Wed Jun 19 20:07:56 2013 (r252004) @@ -448,11 +448,6 @@ tmpfs_nocacheread(vm_object_t tobj, vm_p VM_OBJECT_WLOCK(tobj); /* - * The kern_sendfile() code calls vn_rdwr() with the page - * soft-busied. Ignore the soft-busy state here. Parallel - * reads of the page content from disk are prevented by - * VPO_BUSY. - * * Although the tmpfs vnode lock is held here, it is * nonetheless safe to sleep waiting for a free page. The * pageout daemon does not need to acquire the tmpfs vnode @@ -460,7 +455,7 @@ tmpfs_nocacheread(vm_object_t tobj, vm_p * type object. */ m = vm_page_grab(tobj, idx, VM_ALLOC_NORMAL | VM_ALLOC_RETRY | - VM_ALLOC_IGN_SBUSY | VM_ALLOC_NOBUSY); + VM_ALLOC_NOBUSY); if (m->valid != VM_PAGE_BITS_ALL) { vm_page_busy(m); if (vm_pager_has_page(tobj, idx, NULL, NULL)) {
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201306192007.r5JK7uLv055680>