From owner-svn-src-all@freebsd.org Fri Oct 28 11:46:17 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 30E74C25507; Fri, 28 Oct 2016 11:46:17 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id DAA842F1; Fri, 28 Oct 2016 11:46:16 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u9SBkGii008689; Fri, 28 Oct 2016 11:46:16 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u9SBkGXu008688; Fri, 28 Oct 2016 11:46:16 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201610281146.u9SBkGXu008688@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Fri, 28 Oct 2016 11:46:16 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r308027 - head/sys/fs/msdosfs X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Oct 2016 11:46:17 -0000 Author: kib Date: Fri Oct 28 11:46:15 2016 New Revision: 308027 URL: https://svnweb.freebsd.org/changeset/base/308027 Log: Use buffer pager for msdosfs. Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Modified: head/sys/fs/msdosfs/msdosfs_vnops.c Modified: head/sys/fs/msdosfs/msdosfs_vnops.c ============================================================================== --- head/sys/fs/msdosfs/msdosfs_vnops.c Fri Oct 28 11:43:59 2016 (r308026) +++ head/sys/fs/msdosfs/msdosfs_vnops.c Fri Oct 28 11:46:15 2016 (r308027) @@ -62,11 +62,13 @@ #include #include #include +#include #include #include #include #include +#include #include #include @@ -97,6 +99,7 @@ static vop_rmdir_t msdosfs_rmdir; static vop_symlink_t msdosfs_symlink; static vop_readdir_t msdosfs_readdir; static vop_bmap_t msdosfs_bmap; +static vop_getpages_t msdosfs_getpages; static vop_strategy_t msdosfs_strategy; static vop_print_t msdosfs_print; static vop_pathconf_t msdosfs_pathconf; @@ -1798,6 +1801,38 @@ msdosfs_bmap(struct vop_bmap_args *ap) return (0); } +SYSCTL_NODE(_vfs, OID_AUTO, msdosfs, CTLFLAG_RW, 0, "msdos filesystem"); +static int use_buf_pager = 1; +SYSCTL_INT(_vfs_msdosfs, OID_AUTO, use_buf_pager, CTLFLAG_RWTUN, + &use_buf_pager, 0, + "Use buffer pager instead of bmap"); + +static daddr_t +msdosfs_gbp_getblkno(struct vnode *vp, vm_ooffset_t off) +{ + + return (de_cluster(VTODE(vp)->de_pmp, off)); +} + +static int +msdosfs_gbp_getblksz(struct vnode *vp, daddr_t lbn) +{ + + return (VTODE(vp)->de_pmp->pm_bpcluster); +} + +static int +msdosfs_getpages(struct vop_getpages_args *ap) +{ + + if (use_buf_pager) + return (vfs_bio_getpages(ap->a_vp, ap->a_m, ap->a_count, + ap->a_rbehind, ap->a_rahead, msdosfs_gbp_getblkno, + msdosfs_gbp_getblksz)); + return (vnode_pager_generic_getpages(ap->a_vp, ap->a_m, ap->a_count, + ap->a_rbehind, ap->a_rahead, NULL, NULL)); +} + static int msdosfs_strategy(struct vop_strategy_args *ap) { @@ -1898,6 +1933,7 @@ struct vop_vector msdosfs_vnodeops = { .vop_access = msdosfs_access, .vop_bmap = msdosfs_bmap, + .vop_getpages = msdosfs_getpages, .vop_cachedlookup = msdosfs_lookup, .vop_open = msdosfs_open, .vop_close = msdosfs_close,