61 lines
2.2 KiB
Diff
61 lines
2.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Changwei Ge <ge.changwei@h3c.com>
|
|
Date: Wed, 31 Jan 2018 16:15:02 -0800
|
|
Subject: [PATCH] ocfs2: make metadata estimation accurate and clear
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
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@h3c.com
|
|
Signed-off-by: Changwei Ge <ge.changwei@h3c.com>
|
|
Reported-by: John Lightsey <john@nixnuts.net>
|
|
Tested-by: John Lightsey <john@nixnuts.net>
|
|
Cc: Mark Fasheh <mfasheh@versity.com>
|
|
Cc: Joseph Qi <jiangqi903@gmail.com>
|
|
Cc: Junxiao Bi <junxiao.bi@oracle.com>
|
|
Cc: Joel Becker <jlbec@evilplan.org>
|
|
Cc: Changwei Ge <ge.changwei@h3c.com>
|
|
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
(cherry picked from commit 63de8bd9328bf2a778fc277503da163ae3defa3c)
|
|
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
|
|
---
|
|
fs/ocfs2/aops.c | 4 +++-
|
|
1 file changed, 3 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
|
|
index d1516327b787..256986aca8df 100644
|
|
--- a/fs/ocfs2/aops.c
|
|
+++ b/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 @@ static int ocfs2_unwritten_check(struct inode *inode,
|
|
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 inode *inode, sector_t iblock,
|
|
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);
|
|
--
|
|
2.14.2
|
|
|