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| author | dim <dim@FreeBSD.org> | 2015-02-17 19:53:41 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2015-02-17 19:53:41 +0000 |
| commit | d27bd4650ea928097e260433cb5c69be0dda440f (patch) | |
| tree | 9b840acec4a7a5a64b3092e4f4cbb8197e629360 /sys/kern/vfs_subr.c | |
| parent | 9377b5ad0feb5dd018ed6cfc6378ac19c1252dfe (diff) | |
| parent | 68a4902d98c88ebff2f1dfd8bee849d62233ba60 (diff) | |
| download | FreeBSD-src-d27bd4650ea928097e260433cb5c69be0dda440f.zip FreeBSD-src-d27bd4650ea928097e260433cb5c69be0dda440f.tar.gz | |
Merge ^/head r278756 through r278915.
Diffstat (limited to 'sys/kern/vfs_subr.c')
| -rw-r--r-- | sys/kern/vfs_subr.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c index 912863e..cfa8f45 100644 --- a/sys/kern/vfs_subr.c +++ b/sys/kern/vfs_subr.c @@ -122,6 +122,10 @@ static unsigned long numvnodes; SYSCTL_ULONG(_vfs, OID_AUTO, numvnodes, CTLFLAG_RD, &numvnodes, 0, "Number of vnodes in existence"); +static u_long vnodes_created; +SYSCTL_ULONG(_vfs, OID_AUTO, vnodes_created, CTLFLAG_RD, &vnodes_created, + 0, "Number of vnodes created by getnewvnode"); + /* * Conversion tables for conversion from vnode types to inode formats * and back. @@ -156,6 +160,10 @@ static int vlru_allow_cache_src; SYSCTL_INT(_vfs, OID_AUTO, vlru_allow_cache_src, CTLFLAG_RW, &vlru_allow_cache_src, 0, "Allow vlru to reclaim source vnode"); +static u_long recycles_count; +SYSCTL_ULONG(_vfs, OID_AUTO, recycles, CTLFLAG_RD, &recycles_count, 0, + "Number of vnodes recycled to avoid exceding kern.maxvnodes"); + /* * Various variables used for debugging the new implementation of * reassignbuf(). @@ -788,6 +796,7 @@ vlrureclaim(struct mount *mp) } KASSERT((vp->v_iflag & VI_DOOMED) == 0, ("VI_DOOMED unexpectedly detected in vlrureclaim()")); + atomic_add_long(&recycles_count, 1); vgonel(vp); VOP_UNLOCK(vp, 0); vdropl(vp); @@ -988,8 +997,10 @@ vtryrecycle(struct vnode *vp) __func__, vp); return (EBUSY); } - if ((vp->v_iflag & VI_DOOMED) == 0) + if ((vp->v_iflag & VI_DOOMED) == 0) { + atomic_add_long(&recycles_count, 1); vgonel(vp); + } VOP_UNLOCK(vp, LK_INTERLOCK); vn_finished_write(vnmp); return (0); @@ -1093,6 +1104,7 @@ getnewvnode(const char *tag, struct mount *mp, struct vop_vector *vops, atomic_add_long(&numvnodes, 1); mtx_unlock(&vnode_free_list_mtx); alloc: + atomic_add_long(&vnodes_created, 1); vp = (struct vnode *) uma_zalloc(vnode_zone, M_WAITOK|M_ZERO); /* * Setup locks. @@ -3191,6 +3203,7 @@ DB_SHOW_COMMAND(mount, db_show_mount) db_printf(" mnt_maxsymlinklen = %d\n", mp->mnt_maxsymlinklen); db_printf(" mnt_iosize_max = %d\n", mp->mnt_iosize_max); db_printf(" mnt_hashseed = %u\n", mp->mnt_hashseed); + db_printf(" mnt_lockref = %d\n", mp->mnt_lockref); db_printf(" mnt_secondary_writes = %d\n", mp->mnt_secondary_writes); db_printf(" mnt_secondary_accwrites = %d\n", mp->mnt_secondary_accwrites); |
