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-rw-r--r--fs/nilfs2/recovery.c37
-rw-r--r--fs/nilfs2/seglist.h79
-rw-r--r--fs/nilfs2/segment.h1
-rw-r--r--fs/nilfs2/the_nilfs.c1
4 files changed, 25 insertions, 93 deletions
diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c
index 57afa9d24061..d80cc71be749 100644
--- a/fs/nilfs2/recovery.c
+++ b/fs/nilfs2/recovery.c
@@ -28,7 +28,6 @@
28#include "segment.h" 28#include "segment.h"
29#include "sufile.h" 29#include "sufile.h"
30#include "page.h" 30#include "page.h"
31#include "seglist.h"
32#include "segbuf.h" 31#include "segbuf.h"
33 32
34/* 33/*
@@ -395,6 +394,24 @@ static void dispose_recovery_list(struct list_head *head)
395 } 394 }
396} 395}
397 396
397struct nilfs_segment_entry {
398 struct list_head list;
399 __u64 segnum;
400};
401
402static int nilfs_segment_list_add(struct list_head *head, __u64 segnum)
403{
404 struct nilfs_segment_entry *ent = kmalloc(sizeof(*ent), GFP_NOFS);
405
406 if (unlikely(!ent))
407 return -ENOMEM;
408
409 ent->segnum = segnum;
410 INIT_LIST_HEAD(&ent->list);
411 list_add_tail(&ent->list, head);
412 return 0;
413}
414
398void nilfs_dispose_segment_list(struct list_head *head) 415void nilfs_dispose_segment_list(struct list_head *head)
399{ 416{
400 while (!list_empty(head)) { 417 while (!list_empty(head)) {
@@ -402,7 +419,7 @@ void nilfs_dispose_segment_list(struct list_head *head)
402 = list_entry(head->next, 419 = list_entry(head->next,
403 struct nilfs_segment_entry, list); 420 struct nilfs_segment_entry, list);
404 list_del(&ent->list); 421 list_del(&ent->list);
405 nilfs_free_segment_entry(ent); 422 kfree(ent);
406 } 423 }
407} 424}
408 425
@@ -431,12 +448,10 @@ static int nilfs_prepare_segment_for_recovery(struct the_nilfs *nilfs,
431 if (unlikely(err)) 448 if (unlikely(err))
432 goto failed; 449 goto failed;
433 450
434 err = -ENOMEM;
435 for (i = 1; i < 4; i++) { 451 for (i = 1; i < 4; i++) {
436 ent = nilfs_alloc_segment_entry(segnum[i]); 452 err = nilfs_segment_list_add(head, segnum[i]);
437 if (unlikely(!ent)) 453 if (unlikely(err))
438 goto failed; 454 goto failed;
439 list_add_tail(&ent->list, head);
440 } 455 }
441 456
442 /* 457 /*
@@ -450,7 +465,7 @@ static int nilfs_prepare_segment_for_recovery(struct the_nilfs *nilfs,
450 goto failed; 465 goto failed;
451 } 466 }
452 list_del(&ent->list); 467 list_del(&ent->list);
453 nilfs_free_segment_entry(ent); 468 kfree(ent);
454 } 469 }
455 470
456 /* Allocate new segments for recovery */ 471 /* Allocate new segments for recovery */
@@ -791,7 +806,6 @@ int nilfs_search_super_root(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi,
791 u64 seg_seq; 806 u64 seg_seq;
792 __u64 segnum, nextnum = 0; 807 __u64 segnum, nextnum = 0;
793 __u64 cno; 808 __u64 cno;
794 struct nilfs_segment_entry *ent;
795 LIST_HEAD(segments); 809 LIST_HEAD(segments);
796 int empty_seg = 0, scan_newer = 0; 810 int empty_seg = 0, scan_newer = 0;
797 int ret; 811 int ret;
@@ -892,12 +906,9 @@ int nilfs_search_super_root(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi,
892 if (empty_seg++) 906 if (empty_seg++)
893 goto super_root_found; /* found a valid super root */ 907 goto super_root_found; /* found a valid super root */
894 908
895 ent = nilfs_alloc_segment_entry(segnum); 909 ret = nilfs_segment_list_add(&segments, segnum);
896 if (unlikely(!ent)) { 910 if (unlikely(ret))
897 ret = -ENOMEM;
898 goto failed; 911 goto failed;
899 }
900 list_add_tail(&ent->list, &segments);
901 912
902 seg_seq++; 913 seg_seq++;
903 segnum = nextnum; 914 segnum = nextnum;
diff --git a/fs/nilfs2/seglist.h b/fs/nilfs2/seglist.h
deleted file mode 100644
index e448e40c1ecb..000000000000
--- a/fs/nilfs2/seglist.h
+++ /dev/null
@@ -1,79 +0,0 @@
1/*
2 * seglist.h - expediential structure and routines to handle list of segments
3 * (would be removed in a future release)
4 *
5 * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 *
21 * Written by Ryusuke Konishi <ryusuke@osrg.net>
22 *
23 */
24#ifndef _NILFS_SEGLIST_H
25#define _NILFS_SEGLIST_H
26
27#include <linux/fs.h>
28#include <linux/buffer_head.h>
29#include <linux/nilfs2_fs.h>
30#include "sufile.h"
31
32struct nilfs_segment_entry {
33 __u64 segnum;
34
35 struct list_head list;
36 struct buffer_head *bh_su;
37 struct nilfs_segment_usage *raw_su;
38};
39
40
41void nilfs_dispose_segment_list(struct list_head *);
42
43static inline struct nilfs_segment_entry *
44nilfs_alloc_segment_entry(__u64 segnum)
45{
46 struct nilfs_segment_entry *ent = kmalloc(sizeof(*ent), GFP_NOFS);
47
48 if (likely(ent)) {
49 ent->segnum = segnum;
50 ent->bh_su = NULL;
51 ent->raw_su = NULL;
52 INIT_LIST_HEAD(&ent->list);
53 }
54 return ent;
55}
56
57static inline int nilfs_open_segment_entry(struct nilfs_segment_entry *ent,
58 struct inode *sufile)
59{
60 return nilfs_sufile_get_segment_usage(sufile, ent->segnum,
61 &ent->raw_su, &ent->bh_su);
62}
63
64static inline void nilfs_close_segment_entry(struct nilfs_segment_entry *ent,
65 struct inode *sufile)
66{
67 if (!ent->bh_su)
68 return;
69 nilfs_sufile_put_segment_usage(sufile, ent->segnum, ent->bh_su);
70 ent->bh_su = NULL;
71 ent->raw_su = NULL;
72}
73
74static inline void nilfs_free_segment_entry(struct nilfs_segment_entry *ent)
75{
76 kfree(ent);
77}
78
79#endif /* _NILFS_SEGLIST_H */
diff --git a/fs/nilfs2/segment.h b/fs/nilfs2/segment.h
index f36a851738e4..0d2a475a741b 100644
--- a/fs/nilfs2/segment.h
+++ b/fs/nilfs2/segment.h
@@ -239,5 +239,6 @@ extern int nilfs_search_super_root(struct the_nilfs *, struct nilfs_sb_info *,
239extern int nilfs_recover_logical_segments(struct the_nilfs *, 239extern int nilfs_recover_logical_segments(struct the_nilfs *,
240 struct nilfs_sb_info *, 240 struct nilfs_sb_info *,
241 struct nilfs_recovery_info *); 241 struct nilfs_recovery_info *);
242extern void nilfs_dispose_segment_list(struct list_head *);
242 243
243#endif /* _NILFS_SEGMENT_H */ 244#endif /* _NILFS_SEGMENT_H */
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 7f65b3be4aa9..dfe2e320276e 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -32,7 +32,6 @@
32#include "cpfile.h" 32#include "cpfile.h"
33#include "sufile.h" 33#include "sufile.h"
34#include "dat.h" 34#include "dat.h"
35#include "seglist.h"
36#include "segbuf.h" 35#include "segbuf.h"
37 36
38void nilfs_set_last_segment(struct the_nilfs *nilfs, 37void nilfs_set_last_segment(struct the_nilfs *nilfs,