diff options
| -rw-r--r-- | fs/gfs2/glock.c | 28 | ||||
| -rw-r--r-- | fs/gfs2/incore.h | 2 | ||||
| -rw-r--r-- | fs/gfs2/main.c | 2 |
3 files changed, 18 insertions, 14 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index b5effb9..cf54b0b 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -40,7 +40,7 @@ struct greedy { }; struct gfs2_gl_hash_bucket { - struct list_head hb_list; + struct hlist_head hb_list; }; typedef void (*glock_examiner) (struct gfs2_glock * gl); @@ -49,7 +49,7 @@ static int gfs2_dump_lockstate(struct gfs2_sbd *sdp); static int dump_glock(struct gfs2_glock *gl); static int dump_inode(struct gfs2_inode *ip); -#define GFS2_GL_HASH_SHIFT 13 +#define GFS2_GL_HASH_SHIFT 15 #define GFS2_GL_HASH_SIZE (1 << GFS2_GL_HASH_SHIFT) #define GFS2_GL_HASH_MASK (GFS2_GL_HASH_SIZE - 1) @@ -210,7 +210,7 @@ int gfs2_glock_put(struct gfs2_glock *gl) write_lock(gl_lock_addr(gl->gl_hash)); if (kref_put(&gl->gl_ref, kill_glock)) { - list_del_init(&gl->gl_list); + hlist_del(&gl->gl_list); write_unlock(gl_lock_addr(gl->gl_hash)); BUG_ON(spin_is_locked(&gl->gl_spin)); glock_free(gl); @@ -259,8 +259,9 @@ static struct gfs2_glock *search_bucket(unsigned int hash, const struct lm_lockname *name) { struct gfs2_glock *gl; + struct hlist_node *h; - list_for_each_entry(gl, &gl_hash_table[hash].hb_list, gl_list) { + hlist_for_each_entry(gl, h, &gl_hash_table[hash].hb_list, gl_list) { if (!lm_name_equal(&gl->gl_name, name)) continue; if (gl->gl_sbd != sdp) @@ -368,7 +369,7 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number, glock_free(gl); gl = tmp; } else { - list_add_tail(&gl->gl_list, &gl_hash_table[hash].hb_list); + hlist_add_head(&gl->gl_list, &gl_hash_table[hash].hb_list); write_unlock(gl_lock_addr(hash)); } @@ -1895,15 +1896,15 @@ static int examine_bucket(glock_examiner examiner, struct gfs2_sbd *sdp, { struct gfs2_glock *gl, *prev = NULL; int has_entries = 0; - struct list_head *head = &gl_hash_table[hash].hb_list; + struct hlist_head *head = &gl_hash_table[hash].hb_list; read_lock(gl_lock_addr(hash)); - /* Can't use list_for_each_entry - don't want prefetch here */ - if (list_empty(head)) + /* Can't use hlist_for_each_entry - don't want prefetch here */ + if (hlist_empty(head)) goto out; has_entries = 1; - gl = list_entry(head->next, struct gfs2_glock, gl_list); - while(&gl->gl_list != head) { + gl = list_entry(head->first, struct gfs2_glock, gl_list); + while(1) { if (gl->gl_sbd == sdp) { gfs2_glock_hold(gl); read_unlock(gl_lock_addr(hash)); @@ -1913,6 +1914,8 @@ static int examine_bucket(glock_examiner examiner, struct gfs2_sbd *sdp, examiner(gl); read_lock(gl_lock_addr(hash)); } + if (gl->gl_list.next == NULL) + break; gl = list_entry(gl->gl_list.next, struct gfs2_glock, gl_list); } out: @@ -2195,6 +2198,7 @@ out: static int gfs2_dump_lockstate(struct gfs2_sbd *sdp) { struct gfs2_glock *gl; + struct hlist_node *h; unsigned int x; int error = 0; @@ -2202,7 +2206,7 @@ static int gfs2_dump_lockstate(struct gfs2_sbd *sdp) read_lock(gl_lock_addr(x)); - list_for_each_entry(gl, &gl_hash_table[x].hb_list, gl_list) { + hlist_for_each_entry(gl, h, &gl_hash_table[x].hb_list, gl_list) { if (gl->gl_sbd != sdp) continue; @@ -2225,7 +2229,7 @@ int __init gfs2_glock_init(void) { unsigned i; for(i = 0; i < GFS2_GL_HASH_SIZE; i++) { - INIT_LIST_HEAD(&gl_hash_table[i].hb_list); + INIT_HLIST_HEAD(&gl_hash_table[i].hb_list); } #ifdef GL_HASH_LOCK_SZ for(i = 0; i < GL_HASH_LOCK_SZ; i++) { diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index 1fed8d1..c68d392 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -161,7 +161,7 @@ enum { }; struct gfs2_glock { - struct list_head gl_list; + struct hlist_node gl_list; unsigned long gl_flags; /* GLF_... */ struct lm_lockname gl_name; struct kref gl_ref; diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c index 2bdf246..d286798 100644 --- a/fs/gfs2/main.c +++ b/fs/gfs2/main.c @@ -42,7 +42,7 @@ static void gfs2_init_glock_once(void *foo, kmem_cache_t *cachep, unsigned long struct gfs2_glock *gl = foo; if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) == SLAB_CTOR_CONSTRUCTOR) { - INIT_LIST_HEAD(&gl->gl_list); + INIT_HLIST_NODE(&gl->gl_list); spin_lock_init(&gl->gl_spin); INIT_LIST_HEAD(&gl->gl_holders); INIT_LIST_HEAD(&gl->gl_waiters1); |
