svn commit: r367164 - head/sys/kern
Mateusz Guzik
mjg at FreeBSD.org
Fri Oct 30 14:02:57 UTC 2020
Author: mjg
Date: Fri Oct 30 14:02:56 2020
New Revision: 367164
URL: https://svnweb.freebsd.org/changeset/base/367164
Log:
vfs: change vnode poll to just a malloc type
The size is 120, close fit for 128 and rarely used. The infrequent use
avoidably populates per-CPU caches and ends up with more memory.
Modified:
head/sys/kern/vfs_subr.c
Modified: head/sys/kern/vfs_subr.c
==============================================================================
--- head/sys/kern/vfs_subr.c Fri Oct 30 13:32:58 2020 (r367163)
+++ head/sys/kern/vfs_subr.c Fri Oct 30 14:02:56 2020 (r367164)
@@ -228,7 +228,7 @@ static smr_t buf_trie_smr;
/* Zone for allocation of new vnodes - used exclusively by getnewvnode() */
static uma_zone_t vnode_zone;
-static uma_zone_t vnodepoll_zone;
+MALLOC_DEFINE(M_VNODEPOLL, "VN POLL", "vnode poll");
__read_frequently smr_t vfs_smr;
@@ -660,8 +660,6 @@ vntblinit(void *dummy __unused)
vnode_zone = uma_zcreate("VNODE", sizeof (struct vnode), NULL, NULL,
vnode_init, vnode_fini, UMA_ALIGN_PTR, 0);
uma_zone_set_smr(vnode_zone, vfs_smr);
- vnodepoll_zone = uma_zcreate("VNODEPOLL", sizeof (struct vpollinfo),
- NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
/*
* Preallocate enough nodes to support one-per buf so that
* we can not fail an insert. reassignbuf() callers can not
@@ -4788,7 +4786,7 @@ destroy_vpollinfo_free(struct vpollinfo *vi)
knlist_destroy(&vi->vpi_selinfo.si_note);
mtx_destroy(&vi->vpi_lock);
- uma_zfree(vnodepoll_zone, vi);
+ free(vi, M_VNODEPOLL);
}
static void
@@ -4810,7 +4808,7 @@ v_addpollinfo(struct vnode *vp)
if (vp->v_pollinfo != NULL)
return;
- vi = uma_zalloc(vnodepoll_zone, M_WAITOK | M_ZERO);
+ vi = malloc(sizeof(*vi), M_VNODEPOLL, M_WAITOK | M_ZERO);
mtx_init(&vi->vpi_lock, "vnode pollinfo", NULL, MTX_DEF);
knlist_init(&vi->vpi_selinfo.si_note, vp, vfs_knllock,
vfs_knlunlock, vfs_knl_assert_locked, vfs_knl_assert_unlocked);
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