diff options
-rw-r--r-- | fs/gfs2/dir.h | 1 | ||||
-rw-r--r-- | fs/gfs2/ops_fstype.c | 67 | ||||
-rw-r--r-- | fs/gfs2/super.c | 74 | ||||
-rw-r--r-- | fs/gfs2/super.h | 1 |
4 files changed, 68 insertions, 75 deletions
diff --git a/fs/gfs2/dir.h b/fs/gfs2/dir.h index 8a468cac9328..4f919440c3be 100644 --- a/fs/gfs2/dir.h +++ b/fs/gfs2/dir.h | |||
@@ -11,6 +11,7 @@ | |||
11 | #define __DIR_DOT_H__ | 11 | #define __DIR_DOT_H__ |
12 | 12 | ||
13 | #include <linux/dcache.h> | 13 | #include <linux/dcache.h> |
14 | #include <linux/crc32.h> | ||
14 | 15 | ||
15 | struct inode; | 16 | struct inode; |
16 | struct gfs2_inode; | 17 | struct gfs2_inode; |
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index fc300eafda84..4cae60f4a175 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c | |||
@@ -33,6 +33,7 @@ | |||
33 | #include "util.h" | 33 | #include "util.h" |
34 | #include "log.h" | 34 | #include "log.h" |
35 | #include "quota.h" | 35 | #include "quota.h" |
36 | #include "dir.h" | ||
36 | 37 | ||
37 | #define DO 0 | 38 | #define DO 0 |
38 | #define UNDO 1 | 39 | #define UNDO 1 |
@@ -638,6 +639,72 @@ static void gfs2_lm_others_may_mount(struct gfs2_sbd *sdp) | |||
638 | sdp->sd_lockstruct.ls_lockspace); | 639 | sdp->sd_lockstruct.ls_lockspace); |
639 | } | 640 | } |
640 | 641 | ||
642 | /** | ||
643 | * gfs2_jindex_hold - Grab a lock on the jindex | ||
644 | * @sdp: The GFS2 superblock | ||
645 | * @ji_gh: the holder for the jindex glock | ||
646 | * | ||
647 | * Returns: errno | ||
648 | */ | ||
649 | |||
650 | static int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh) | ||
651 | { | ||
652 | struct gfs2_inode *dip = GFS2_I(sdp->sd_jindex); | ||
653 | struct qstr name; | ||
654 | char buf[20]; | ||
655 | struct gfs2_jdesc *jd; | ||
656 | int error; | ||
657 | |||
658 | name.name = buf; | ||
659 | |||
660 | mutex_lock(&sdp->sd_jindex_mutex); | ||
661 | |||
662 | for (;;) { | ||
663 | error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, ji_gh); | ||
664 | if (error) | ||
665 | break; | ||
666 | |||
667 | name.len = sprintf(buf, "journal%u", sdp->sd_journals); | ||
668 | name.hash = gfs2_disk_hash(name.name, name.len); | ||
669 | |||
670 | error = gfs2_dir_check(sdp->sd_jindex, &name, NULL); | ||
671 | if (error == -ENOENT) { | ||
672 | error = 0; | ||
673 | break; | ||
674 | } | ||
675 | |||
676 | gfs2_glock_dq_uninit(ji_gh); | ||
677 | |||
678 | if (error) | ||
679 | break; | ||
680 | |||
681 | error = -ENOMEM; | ||
682 | jd = kzalloc(sizeof(struct gfs2_jdesc), GFP_KERNEL); | ||
683 | if (!jd) | ||
684 | break; | ||
685 | |||
686 | INIT_LIST_HEAD(&jd->extent_list); | ||
687 | jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1); | ||
688 | if (!jd->jd_inode || IS_ERR(jd->jd_inode)) { | ||
689 | if (!jd->jd_inode) | ||
690 | error = -ENOENT; | ||
691 | else | ||
692 | error = PTR_ERR(jd->jd_inode); | ||
693 | kfree(jd); | ||
694 | break; | ||
695 | } | ||
696 | |||
697 | spin_lock(&sdp->sd_jindex_spin); | ||
698 | jd->jd_jid = sdp->sd_journals++; | ||
699 | list_add_tail(&jd->jd_list, &sdp->sd_jindex_list); | ||
700 | spin_unlock(&sdp->sd_jindex_spin); | ||
701 | } | ||
702 | |||
703 | mutex_unlock(&sdp->sd_jindex_mutex); | ||
704 | |||
705 | return error; | ||
706 | } | ||
707 | |||
641 | static int init_journal(struct gfs2_sbd *sdp, int undo) | 708 | static int init_journal(struct gfs2_sbd *sdp, int undo) |
642 | { | 709 | { |
643 | struct inode *master = sdp->sd_master_dir->d_inode; | 710 | struct inode *master = sdp->sd_master_dir->d_inode; |
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index b85877062a48..3dd9f5788cb0 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c | |||
@@ -34,76 +34,6 @@ | |||
34 | #include "util.h" | 34 | #include "util.h" |
35 | 35 | ||
36 | /** | 36 | /** |
37 | * gfs2_jindex_hold - Grab a lock on the jindex | ||
38 | * @sdp: The GFS2 superblock | ||
39 | * @ji_gh: the holder for the jindex glock | ||
40 | * | ||
41 | * This is very similar to the gfs2_rindex_hold() function, except that | ||
42 | * in general we hold the jindex lock for longer periods of time and | ||
43 | * we grab it far less frequently (in general) then the rgrp lock. | ||
44 | * | ||
45 | * Returns: errno | ||
46 | */ | ||
47 | |||
48 | int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh) | ||
49 | { | ||
50 | struct gfs2_inode *dip = GFS2_I(sdp->sd_jindex); | ||
51 | struct qstr name; | ||
52 | char buf[20]; | ||
53 | struct gfs2_jdesc *jd; | ||
54 | int error; | ||
55 | |||
56 | name.name = buf; | ||
57 | |||
58 | mutex_lock(&sdp->sd_jindex_mutex); | ||
59 | |||
60 | for (;;) { | ||
61 | error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, ji_gh); | ||
62 | if (error) | ||
63 | break; | ||
64 | |||
65 | name.len = sprintf(buf, "journal%u", sdp->sd_journals); | ||
66 | name.hash = gfs2_disk_hash(name.name, name.len); | ||
67 | |||
68 | error = gfs2_dir_check(sdp->sd_jindex, &name, NULL); | ||
69 | if (error == -ENOENT) { | ||
70 | error = 0; | ||
71 | break; | ||
72 | } | ||
73 | |||
74 | gfs2_glock_dq_uninit(ji_gh); | ||
75 | |||
76 | if (error) | ||
77 | break; | ||
78 | |||
79 | error = -ENOMEM; | ||
80 | jd = kzalloc(sizeof(struct gfs2_jdesc), GFP_KERNEL); | ||
81 | if (!jd) | ||
82 | break; | ||
83 | |||
84 | INIT_LIST_HEAD(&jd->extent_list); | ||
85 | jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1); | ||
86 | if (!jd->jd_inode || IS_ERR(jd->jd_inode)) { | ||
87 | if (!jd->jd_inode) | ||
88 | error = -ENOENT; | ||
89 | else | ||
90 | error = PTR_ERR(jd->jd_inode); | ||
91 | kfree(jd); | ||
92 | break; | ||
93 | } | ||
94 | |||
95 | spin_lock(&sdp->sd_jindex_spin); | ||
96 | jd->jd_jid = sdp->sd_journals++; | ||
97 | list_add_tail(&jd->jd_list, &sdp->sd_jindex_list); | ||
98 | spin_unlock(&sdp->sd_jindex_spin); | ||
99 | } | ||
100 | |||
101 | mutex_unlock(&sdp->sd_jindex_mutex); | ||
102 | |||
103 | return error; | ||
104 | } | ||
105 | |||
106 | /** | ||
107 | * gfs2_jindex_free - Clear all the journal index information | 37 | * gfs2_jindex_free - Clear all the journal index information |
108 | * @sdp: The GFS2 superblock | 38 | * @sdp: The GFS2 superblock |
109 | * | 39 | * |
@@ -580,10 +510,6 @@ static int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp, | |||
580 | struct gfs2_log_header_host lh; | 510 | struct gfs2_log_header_host lh; |
581 | int error; | 511 | int error; |
582 | 512 | ||
583 | error = gfs2_jindex_hold(sdp, &ji_gh); | ||
584 | if (error) | ||
585 | return error; | ||
586 | |||
587 | list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) { | 513 | list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) { |
588 | lfcc = kmalloc(sizeof(struct lfcc), GFP_KERNEL); | 514 | lfcc = kmalloc(sizeof(struct lfcc), GFP_KERNEL); |
589 | if (!lfcc) { | 515 | if (!lfcc) { |
diff --git a/fs/gfs2/super.h b/fs/gfs2/super.h index 1848dad3ecba..c6254596713a 100644 --- a/fs/gfs2/super.h +++ b/fs/gfs2/super.h | |||
@@ -25,7 +25,6 @@ static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp) | |||
25 | return x; | 25 | return x; |
26 | } | 26 | } |
27 | 27 | ||
28 | int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh); | ||
29 | void gfs2_jindex_free(struct gfs2_sbd *sdp); | 28 | void gfs2_jindex_free(struct gfs2_sbd *sdp); |
30 | 29 | ||
31 | struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid); | 30 | struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid); |