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[LogFS] Move reserved segments with journal 

Fixes a GC livelock.

Signed-off-by: Joern Engel <joern@logfs.org>
This commit is contained in:
Joern Engel 2010-03-29 21:13:28 +02:00
parent 723b2ff408
commit 0943846ae0
1 changed files with 4 additions and 0 deletions
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4
fs/logfs/journal.c
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@ -800,6 +800,7 @@ void do_logfs_journal_wl_pass(struct super_block *sb)
{
struct logfs_super *super = logfs_super(sb);
struct logfs_area *area = super->s_journal_area;
struct btree_head32 *head = &super->s_reserved_segments;
u32 segno, ec;
int i, err;
@ -807,6 +808,7 @@ void do_logfs_journal_wl_pass(struct super_block *sb)
/* Drop old segments */
journal_for_each(i)
if (super->s_journal_seg[i]) {
btree_remove32(head, super->s_journal_seg[i]);
logfs_set_segment_unreserved(sb,
super->s_journal_seg[i],
super->s_journal_ec[i]);
@ -819,6 +821,8 @@ void do_logfs_journal_wl_pass(struct super_block *sb)
super->s_journal_seg[i] = segno;
super->s_journal_ec[i] = ec;
logfs_set_segment_reserved(sb, segno);
err = btree_insert32(head, segno, (void *)1, GFP_KERNEL);
BUG_ON(err); /* mempool should prevent this */
}
/* Manually move journal_area */
freeseg(sb, area->a_segno);