Date: Sun, 6 Sep 2009 19:45:38 +0000 (UTC) From: Kip Macy <kmacy@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r196905 - user/kmacy/releng_7_2_fcs_1/sys/kern Message-ID: <200909061945.n86JjcP0092851@svn.freebsd.org>
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Author: kmacy Date: Sun Sep 6 19:45:37 2009 New Revision: 196905 URL: http://svn.freebsd.org/changeset/base/196905 Log: make bg sendfile a toggle Modified: user/kmacy/releng_7_2_fcs_1/sys/kern/uipc_syscalls.c Modified: user/kmacy/releng_7_2_fcs_1/sys/kern/uipc_syscalls.c ============================================================================== --- user/kmacy/releng_7_2_fcs_1/sys/kern/uipc_syscalls.c Sun Sep 6 19:33:13 2009 (r196904) +++ user/kmacy/releng_7_2_fcs_1/sys/kern/uipc_syscalls.c Sun Sep 6 19:45:37 2009 (r196905) @@ -106,6 +106,10 @@ SYSCTL_INT(_kern_ipc, OID_AUTO, nsfbufsp SYSCTL_INT(_kern_ipc, OID_AUTO, nsfbufsused, CTLFLAG_RD, &nsfbufsused, 0, "Number of sendfile(2) sf_bufs in use"); +static int bg_sendfile_enable = 1; +SYSCTL_INT(_kern_ipc, OID_AUTO, bg_sendfile_enable, CTLFLAG_RW, + &bg_sendfile_enable, 0, "Enable background sendfile"); + /* * Convert a user file descriptor to a kernel file entry. A reference on the * file entry is held upon returning. This is lighter weight than @@ -1986,7 +1990,8 @@ retry_space: (space <= 0 || space < so->so_snd.sb_lowat)) { if (so->so_state & SS_NBIO) { - if ((so->so_snd.sb_flags & SB_SENDING) == 0) + if (bg_sendfile_enable && + (so->so_snd.sb_flags & SB_SENDING) == 0) soissending(so, td, uap, hdr_uio, trl_uio, compat, sbytes); SOCKBUF_UNLOCK(&so->so_snd); error = EAGAIN;
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