ocfs2: Set suballoc_loc on allocated metadata.
Get the suballoc_loc from ocfs2_claim_new_inode() or
ocfs2_claim_metadata(). Store it on the appropriate field of the block
we just allocated.
Signed-off-by: Joel Becker <joel.becker@oracle.com>
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 9c2e669..7809f41 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -54,7 +54,9 @@
#define OCFS2_MAX_TO_STEAL 1024
struct ocfs2_suballoc_result {
- u64 sr_bg_blkno; /* The bg we allocated from */
+ u64 sr_bg_blkno; /* The bg we allocated from. Set
+ to 0 when a block group is
+ contiguous. */
u64 sr_blkno; /* The first allocated block */
unsigned int sr_bit_offset; /* The bit in the bg */
unsigned int sr_bits; /* How many bits we claimed */
@@ -1604,6 +1606,7 @@
struct ocfs2_suballoc_result *res)
{
int i;
+ u64 bg_blkno = res->sr_bg_blkno; /* Save off */
struct ocfs2_extent_rec *rec;
struct ocfs2_dinode *di = (struct ocfs2_dinode *)ac->ac_bh->b_data;
struct ocfs2_chain_list *cl = &di->id2.i_chain;
@@ -1614,14 +1617,17 @@
}
res->sr_blkno = res->sr_bg_blkno + res->sr_bit_offset;
+ res->sr_bg_blkno = 0; /* Clear it for contig block groups */
if (!ocfs2_supports_discontig_bh(OCFS2_SB(ac->ac_inode->i_sb)) ||
!bg->bg_list.l_next_free_rec)
return;
for (i = 0; i < le16_to_cpu(bg->bg_list.l_next_free_rec); i++) {
rec = &bg->bg_list.l_recs[i];
- if (ocfs2_bg_discontig_fix_by_rec(res, rec, cl))
+ if (ocfs2_bg_discontig_fix_by_rec(res, rec, cl)) {
+ res->sr_bg_blkno = bg_blkno; /* Restore */
break;
+ }
}
}
@@ -1926,6 +1932,7 @@
int ocfs2_claim_metadata(handle_t *handle,
struct ocfs2_alloc_context *ac,
u32 bits_wanted,
+ u64 *suballoc_loc,
u16 *suballoc_bit_start,
unsigned int *num_bits,
u64 *blkno_start)
@@ -1948,6 +1955,7 @@
}
atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
+ *suballoc_loc = res.sr_bg_blkno;
*suballoc_bit_start = res.sr_bit_offset;
*blkno_start = res.sr_blkno;
ac->ac_bits_given += res.sr_bits;
@@ -1993,11 +2001,12 @@
struct inode *dir,
struct buffer_head *parent_fe_bh,
struct ocfs2_alloc_context *ac,
+ u64 *suballoc_loc,
u16 *suballoc_bit,
u64 *fe_blkno)
{
int status;
- struct ocfs2_suballoc_result res = { .sr_blkno = 0, };
+ struct ocfs2_suballoc_result res;
mlog_entry_void();
@@ -2021,6 +2030,7 @@
BUG_ON(res.sr_bits != 1);
+ *suballoc_loc = res.sr_bg_blkno;
*suballoc_bit = res.sr_bit_offset;
*fe_blkno = res.sr_blkno;
ac->ac_bits_given++;