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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2008-07-11 19:27:31 -0400
committerTheodore Ts'o <tytso@mit.edu>2008-07-11 19:27:31 -0400
commited8f9c751feb3aebf7c0dd25e61481a16412bd6e (patch)
tree4919965c346c4dc25c94f97b7a7e83689c15502e
parent8a35694e1181a5c6d6496dca09407fc7fa4c86c2 (diff)
ext4: start searching for the right extent from the goal group.
With mballoc we search for the best extent using different criteria. We should always use the goal group when we are starting with a new criteria. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
-rw-r--r--fs/ext4/mballoc.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index ba3aad27f442..bdb9f299157a 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -1736,10 +1736,6 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac)
ac->ac_g_ex.fe_start = sbi->s_mb_last_start;
spin_unlock(&sbi->s_md_lock);
}
-
- /* searching for the right group start from the goal value specified */
- group = ac->ac_g_ex.fe_group;
-
/* Let's just scan groups to find more-less suitable blocks */
cr = ac->ac_2order ? 0 : 1;
/*
@@ -1749,6 +1745,12 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac)
repeat:
for (; cr < 4 && ac->ac_status == AC_STATUS_CONTINUE; cr++) {
ac->ac_criteria = cr;
+ /*
+ * searching for the right group start
+ * from the goal value specified
+ */
+ group = ac->ac_g_ex.fe_group;
+
for (i = 0; i < EXT4_SB(sb)->s_groups_count; group++, i++) {
struct ext4_group_info *grp;
struct ext4_group_desc *desc;