Author: kib
Date: Mon Sep 7 13:58:26 2009
New Revision: 196925
URL: http://svn.freebsd.org/changeset/base/196925
Log:
MFC r196206.
Take the number of allocated freeblks into consideration for
softdep_slowdown().
Tested by: pluknet gmail com
Modified:
stable/6/sys/ (props changed)
stable/6/sys/conf/ (props changed)
stable/6/sys/contrib/pf/ (props changed)
stable/6/sys/dev/cxgb/ (props changed)
stable/6/sys/ufs/ffs/ffs_softdep.c
Modified: stable/6/sys/ufs/ffs/ffs_softdep.c
==============================================================================
--- stable/6/sys/ufs/ffs/ffs_softdep.c Mon Sep 7 13:37:04 2009
(r196924)
+++ stable/6/sys/ufs/ffs/ffs_softdep.c Mon Sep 7 13:58:26 2009
(r196925)
@@ -668,6 +668,8 @@ static int req_clear_inodedeps; /* synce
static int req_clear_remove; /* syncer process flush some freeblks */
#define FLUSH_REMOVE 2
#define FLUSH_REMOVE_WAIT 3
+static long num_freeblkdep; /* number of freeblks workitems allocated */
+
/*
* runtime statistics
*/
@@ -2195,6 +2197,9 @@ softdep_setup_freeblocks(ip, length, fla
freeblks->fb_uid = ip->i_uid;
freeblks->fb_previousinum = ip->i_number;
freeblks->fb_devvp = ip->i_devvp;
+ ACQUIRE_LOCK(&lk);
+ num_freeblkdep++;
+ FREE_LOCK(&lk);
extblocks = 0;
if (fs->fs_magic == FS_UFS2_MAGIC)
extblocks = btodb(fragroundup(fs, ip->i_din2->di_extsize));
@@ -2784,6 +2789,7 @@ handle_workitem_freeblocks(freeblks, fla
ACQUIRE_LOCK(&lk);
WORKITEM_FREE(freeblks, D_FREEBLKS);
+ num_freeblkdep--;
FREE_LOCK(&lk);
}
@@ -5708,7 +5714,8 @@ softdep_slowdown(vp)
max_softdeps_hard = max_softdeps * 11 / 10;
if (num_dirrem < max_softdeps_hard / 2 &&
num_inodedep < max_softdeps_hard &&
- VFSTOUFS(vp->v_mount)->um_numindirdeps < maxindirdeps) {
+ VFSTOUFS(vp->v_mount)->um_numindirdeps < maxindirdeps &&
+ num_freeblkdep < max_softdeps_hard) {
FREE_LOCK(&lk);
return (0);
}
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