8 files changed, 2 insertions, 171 deletions

diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 5341e03b873f..90847e0957bb 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -34,11 +34,6 @@
 #include "super.h"
 #include "util.h"
 
-struct greedy {
-        struct gfs2_holder gr_gh;
-        struct delayed_work gr_work;
-};
-
 struct gfs2_gl_hash_bucket {
         struct hlist_head hb_list;
 };
@@ -618,30 +613,6 @@ static int rq_demote(struct gfs2_holder *gh)
 }
 
 /**
- * rq_greedy - process a queued request to drop greedy status
- * @gh: the glock holder
- *
- * Returns: 1 if the queue is blocked
- */
-
-static int rq_greedy(struct gfs2_holder *gh)
-{
-        struct gfs2_glock *gl = gh->gh_gl;
-
-        list_del_init(&gh->gh_list);
-        /*  gh->gh_error never examined.  */
-        clear_bit(GLF_GREEDY, &gl->gl_flags);
-        spin_unlock(&gl->gl_spin);
-
-        gfs2_holder_uninit(gh);
-        kfree(container_of(gh, struct greedy, gr_gh));
-
-        spin_lock(&gl->gl_spin);
-
-        return 0;
-}
-
-/**
  * run_queue - process holder structures on a glock
  * @gl: the glock
  *
@@ -671,8 +642,6 @@ static void run_queue(struct gfs2_glock *gl)
 
                         if (test_bit(HIF_DEMOTE, &gh->gh_iflags))
                                 blocked = rq_demote(gh);
-                        else if (test_bit(HIF_GREEDY, &gh->gh_iflags))
-                                blocked = rq_greedy(gh);
                         else
                                 gfs2_assert_warn(gl->gl_sbd, 0);
 
@@ -1336,68 +1305,6 @@ void gfs2_glock_dq(struct gfs2_holder *gh)
         spin_unlock(&gl->gl_spin);
 }
 
-static void greedy_work(struct work_struct *work)
-{
-        struct greedy *gr = container_of(work, struct greedy, gr_work.work);
-        struct gfs2_holder *gh = &gr->gr_gh;
-        struct gfs2_glock *gl = gh->gh_gl;
-        const struct gfs2_glock_operations *glops = gl->gl_ops;
-
-        clear_bit(GLF_SKIP_WAITERS2, &gl->gl_flags);
-
-        if (glops->go_greedy)
-                glops->go_greedy(gl);
-
-        spin_lock(&gl->gl_spin);
-
-        if (list_empty(&gl->gl_waiters2)) {
-                clear_bit(GLF_GREEDY, &gl->gl_flags);
-                spin_unlock(&gl->gl_spin);
-                gfs2_holder_uninit(gh);
-                kfree(gr);
-        } else {
-                gfs2_glock_hold(gl);
-                list_add_tail(&gh->gh_list, &gl->gl_waiters2);
-                run_queue(gl);
-                spin_unlock(&gl->gl_spin);
-                gfs2_glock_put(gl);
-        }
-}
-
-/**
- * gfs2_glock_be_greedy -
- * @gl:
- * @time:
- *
- * Returns: 0 if go_greedy will be called, 1 otherwise
- */
-
-int gfs2_glock_be_greedy(struct gfs2_glock *gl, unsigned int time)
-{
-        struct greedy *gr;
-        struct gfs2_holder *gh;
-
-        if (!time || gl->gl_sbd->sd_args.ar_localcaching ||
-            test_and_set_bit(GLF_GREEDY, &gl->gl_flags))
-                return 1;
-
-        gr = kmalloc(sizeof(struct greedy), GFP_KERNEL);
-        if (!gr) {
-                clear_bit(GLF_GREEDY, &gl->gl_flags);
-                return 1;
-        }
-        gh = &gr->gr_gh;
-
-        gfs2_holder_init(gl, 0, 0, gh);
-        set_bit(HIF_GREEDY, &gh->gh_iflags);
-        INIT_DELAYED_WORK(&gr->gr_work, greedy_work);
-
-        set_bit(GLF_SKIP_WAITERS2, &gl->gl_flags);
-        schedule_delayed_work(&gr->gr_work, time);
-
-        return 0;
-}
-
 /**
  * gfs2_glock_dq_uninit - dequeue a holder from a glock and initialize it
  * @gh: the holder structure
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index bde02a7061ec..ddc56dc4ec9f 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -92,8 +92,6 @@ int gfs2_glock_poll(struct gfs2_holder *gh);
 int gfs2_glock_wait(struct gfs2_holder *gh);
 void gfs2_glock_dq(struct gfs2_holder *gh);
 
-int gfs2_glock_be_greedy(struct gfs2_glock *gl, unsigned int time);
-
 void gfs2_glock_dq_uninit(struct gfs2_holder *gh);
 int gfs2_glock_nq_num(struct gfs2_sbd *sdp,
                       u64 number, const struct gfs2_glock_operations *glops,
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index b068d10bcb6e..e4da26fe406f 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -319,39 +319,6 @@ static void inode_go_unlock(struct gfs2_holder *gh)
 }
 
 /**
- * inode_greedy -
- * @gl: the glock
- *
- */
-
-static void inode_greedy(struct gfs2_glock *gl)
-{
-        struct gfs2_sbd *sdp = gl->gl_sbd;
-        struct gfs2_inode *ip = gl->gl_object;
-        unsigned int quantum = gfs2_tune_get(sdp, gt_greedy_quantum);
-        unsigned int max = gfs2_tune_get(sdp, gt_greedy_max);
-        unsigned int new_time;
-
-        spin_lock(&ip->i_spin);
-
-        if (time_after(ip->i_last_pfault + quantum, jiffies)) {
-                new_time = ip->i_greedy + quantum;
-                if (new_time > max)
-                        new_time = max;
-        } else {
-                new_time = ip->i_greedy - quantum;
-                if (!new_time || new_time > max)
-                        new_time = 1;
-        }
-
-        ip->i_greedy = new_time;
-
-        spin_unlock(&ip->i_spin);
-
-        iput(&ip->i_inode);
-}
-
-/**
  * rgrp_go_demote_ok - Check to see if it's ok to unlock a RG's glock
  * @gl: the glock
  *
@@ -492,7 +459,6 @@ const struct gfs2_glock_operations gfs2_inode_glops = {
         .go_demote_ok = inode_go_demote_ok,
         .go_lock = inode_go_lock,
         .go_unlock = inode_go_unlock,
-        .go_greedy = inode_greedy,
         .go_type = LM_TYPE_INODE,
 };
 
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index a24c4af09ce0..dc024b18ea96 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -111,7 +111,6 @@ struct gfs2_glock_operations {
         int (*go_lock) (struct gfs2_holder *gh);
         void (*go_unlock) (struct gfs2_holder *gh);
         void (*go_callback) (struct gfs2_glock *gl, unsigned int state);
-        void (*go_greedy) (struct gfs2_glock *gl);
         const int go_type;
 };
 
@@ -120,7 +119,6 @@ enum {
         HIF_MUTEX               = 0,
         HIF_PROMOTE             = 1,
         HIF_DEMOTE              = 2,
-        HIF_GREEDY              = 3,
 
         /* States */
         HIF_ALLOCED             = 4,
@@ -149,7 +147,6 @@ enum {
         GLF_STICKY              = 2,
         GLF_DIRTY               = 5,
         GLF_SKIP_WAITERS2       = 6,
-        GLF_GREEDY              = 7,
 };
 
 struct gfs2_glock {
@@ -166,7 +163,7 @@ struct gfs2_glock {
         unsigned long gl_ip;
         struct list_head gl_holders;
         struct list_head gl_waiters1;   /* HIF_MUTEX */
-        struct list_head gl_waiters2;   /* HIF_DEMOTE, HIF_GREEDY */
+        struct list_head gl_waiters2;   /* HIF_DEMOTE */
         struct list_head gl_waiters3;   /* HIF_PROMOTE */
 
         const struct gfs2_glock_operations *gl_ops;
@@ -235,7 +232,6 @@ struct gfs2_inode {
 
         spinlock_t i_spin;
         struct rw_semaphore i_rw_mutex;
-        unsigned int i_greedy;
         unsigned long i_last_pfault;
 
         struct buffer_head *i_cache[GFS2_MAX_META_HEIGHT];
@@ -423,9 +419,6 @@ struct gfs2_tune {
         unsigned int gt_complain_secs;
         unsigned int gt_reclaim_limit; /* Max num of glocks in reclaim list */
         unsigned int gt_entries_per_readdir;
-        unsigned int gt_greedy_default;
-        unsigned int gt_greedy_quantum;
-        unsigned int gt_greedy_max;
         unsigned int gt_statfs_quantum;
         unsigned int gt_statfs_slow;
 };
diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c
index c22738cdbf2d..47369d011214 100644
--- a/fs/gfs2/ops_super.c
+++ b/fs/gfs2/ops_super.c
@@ -452,14 +452,12 @@ out:
 
 static struct inode *gfs2_alloc_inode(struct super_block *sb)
 {
-        struct gfs2_sbd *sdp = sb->s_fs_info;
         struct gfs2_inode *ip;
 
         ip = kmem_cache_alloc(gfs2_inode_cachep, GFP_KERNEL);
         if (ip) {
                 ip->i_flags = 0;
                 ip->i_gl = NULL;
-                ip->i_greedy = gfs2_tune_get(sdp, gt_greedy_default);
                 ip->i_last_pfault = jiffies;
         }
         return &ip->i_inode;
diff --git a/fs/gfs2/ops_vm.c b/fs/gfs2/ops_vm.c
index 45a5f11fc39a..14b380fb0602 100644
--- a/fs/gfs2/ops_vm.c
+++ b/fs/gfs2/ops_vm.c
@@ -28,34 +28,13 @@
 #include "trans.h"
 #include "util.h"
 
-static void pfault_be_greedy(struct gfs2_inode *ip)
-{
-        unsigned int time;
-
-        spin_lock(&ip->i_spin);
-        time = ip->i_greedy;
-        ip->i_last_pfault = jiffies;
-        spin_unlock(&ip->i_spin);
-
-        igrab(&ip->i_inode);
-        if (gfs2_glock_be_greedy(ip->i_gl, time))
-                iput(&ip->i_inode);
-}
-
 static struct page *gfs2_private_nopage(struct vm_area_struct *area,
                                         unsigned long address, int *type)
 {
         struct gfs2_inode *ip = GFS2_I(area->vm_file->f_mapping->host);
-        struct page *result;
 
         set_bit(GIF_PAGED, &ip->i_flags);
-
-        result = filemap_nopage(area, address, type);
-
-        if (result && result != NOPAGE_OOM)
-                pfault_be_greedy(ip);
-
-        return result;
+        return filemap_nopage(area, address, type);
 }
 
 static int alloc_page_backing(struct gfs2_inode *ip, struct page *page)
@@ -167,7 +146,6 @@ static struct page *gfs2_sharewrite_nopage(struct vm_area_struct *area,
                 set_page_dirty(result);
         }
 
-        pfault_be_greedy(ip);
 out:
         gfs2_glock_dq_uninit(&i_gh);
 
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 3e17dcf35a30..ce5353ac8f3d 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -77,9 +77,6 @@ void gfs2_tune_init(struct gfs2_tune *gt)
         gt->gt_complain_secs = 10;
         gt->gt_reclaim_limit = 5000;
         gt->gt_entries_per_readdir = 32;
-        gt->gt_greedy_default = HZ / 10;
-        gt->gt_greedy_quantum = HZ / 40;
-        gt->gt_greedy_max = HZ / 4;
         gt->gt_statfs_quantum = 30;
         gt->gt_statfs_slow = 0;
 }
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index 11206118d983..d01f9f0fda26 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -442,9 +442,6 @@ TUNE_ATTR(new_files_directio, 0);
 TUNE_ATTR(quota_simul_sync, 1);
 TUNE_ATTR(quota_cache_secs, 1);
 TUNE_ATTR(stall_secs, 1);
-TUNE_ATTR(greedy_default, 1);
-TUNE_ATTR(greedy_quantum, 1);
-TUNE_ATTR(greedy_max, 1);
 TUNE_ATTR(statfs_quantum, 1);
 TUNE_ATTR_DAEMON(scand_secs, scand_process);
 TUNE_ATTR_DAEMON(recoverd_secs, recoverd_process);
@@ -467,9 +464,6 @@ static struct attribute *tune_attrs[] = {
         &tune_attr_quota_simul_sync.attr,
         &tune_attr_quota_cache_secs.attr,
         &tune_attr_stall_secs.attr,
-        &tune_attr_greedy_default.attr,
-        &tune_attr_greedy_quantum.attr,
-        &tune_attr_greedy_max.attr,
         &tune_attr_statfs_quantum.attr,
         &tune_attr_scand_secs.attr,
         &tune_attr_recoverd_secs.attr,