Date: Mon, 20 Apr 2015 17:43:37 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r281778 - stable/10/sys/kern Message-ID: <201504201743.t3KHhbvl089760@svn.freebsd.org>
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Author: alc Date: Mon Apr 20 17:43:36 2015 New Revision: 281778 URL: https://svnweb.freebsd.org/changeset/base/281778 Log: MFC r278402 Preset the object's color, or alignment, to maximize superpage usage. Modified: stable/10/sys/kern/uipc_shm.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/kern/uipc_shm.c ============================================================================== --- stable/10/sys/kern/uipc_shm.c Mon Apr 20 17:37:37 2015 (r281777) +++ stable/10/sys/kern/uipc_shm.c Mon Apr 20 17:43:36 2015 (r281778) @@ -554,9 +554,10 @@ shm_alloc(struct ucred *ucred, mode_t mo shmfd->shm_object = vm_pager_allocate(OBJT_DEFAULT, NULL, shmfd->shm_size, VM_PROT_DEFAULT, 0, ucred); KASSERT(shmfd->shm_object != NULL, ("shm_create: vm_pager_allocate")); + shmfd->shm_object->pg_color = 0; VM_OBJECT_WLOCK(shmfd->shm_object); vm_object_clear_flag(shmfd->shm_object, OBJ_ONEMAPPING); - vm_object_set_flag(shmfd->shm_object, OBJ_NOSPLIT); + vm_object_set_flag(shmfd->shm_object, OBJ_COLORED | OBJ_NOSPLIT); VM_OBJECT_WUNLOCK(shmfd->shm_object); vfs_timestamp(&shmfd->shm_birthtime); shmfd->shm_atime = shmfd->shm_mtime = shmfd->shm_ctime =
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