The patch titled
Subject: ocfs2: make metadata estimation accurate and clear
has been added to the -mm tree. Its filename is
ocfs2-make-metadata-estimation-accurate-and-clear.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ocfs2-make-metadata-estimation-accurate-and-clear.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ocfs2-make-metadata-estimation-accurate-and-clear.patch
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------------------------------------------------------
From: Changwei Ge <ge.changwei@xxxxxxx>
Subject: ocfs2: make metadata estimation accurate and clear
Current code assume that ::w_unwritten_list always has only one item on.
This is not right and hard to get understood. So improve how to count
unwritten item.
Link: http://lkml.kernel.org/r/1515479070-32653-1-git-send-email-ge.changwei@xxxxxxx
Signed-off-by: Changwei Ge <ge.changwei@xxxxxxx>
Reported-by: John Lightsey <john@xxxxxxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxxxxxx>
Cc: Joseph Qi <jiangqi903@xxxxxxxxx>
Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Changwei Ge <ge.changwei@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/aops.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff -puN fs/ocfs2/aops.c~ocfs2-make-metadata-estimation-accurate-and-clear fs/ocfs2/aops.c
--- a/fs/ocfs2/aops.c~ocfs2-make-metadata-estimation-accurate-and-clear
+++ a/fs/ocfs2/aops.c
@@ -797,6 +797,7 @@ struct ocfs2_write_ctxt {
struct ocfs2_cached_dealloc_ctxt w_dealloc;
struct list_head w_unwritten_list;
+ unsigned int w_unwritten_count;
};
void ocfs2_unlock_and_free_pages(struct page **pages, int num_pages)
@@ -1386,6 +1387,7 @@ retry:
desc->c_clear_unwritten = 0;
list_add_tail(&new->ue_ip_node, &oi->ip_unwritten_list);
list_add_tail(&new->ue_node, &wc->w_unwritten_list);
+ wc->w_unwritten_count++;
new = NULL;
unlock:
spin_unlock(&oi->ip_lock);
@@ -2256,7 +2258,7 @@ static int ocfs2_dio_wr_get_block(struct
ue->ue_phys = desc->c_phys;
list_splice_tail_init(&wc->w_unwritten_list, &dwc->dw_zero_list);
- dwc->dw_zero_count++;
+ dwc->dw_zero_count += wc->w_unwritten_count;
}
ret = ocfs2_write_end_nolock(inode->i_mapping, pos, len, len, wc);
_
Patches currently in -mm which might be from ge.changwei@xxxxxxx are
ocfs2-dlm-clean-dead-code-up.patch
ocfs2-cluster-neaten-a-member-of-o2net_msg_handler.patch
ocfs2-clean-dead-code-in-suballocc.patch
ocfs2-make-metadata-estimation-accurate-and-clear.patch
ocfs2-try-to-reuse-extent-block-in-dealloc-without-meta_alloc.patch
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