From: Ivan Shapovalov <intelfx100@gmail.com>
To: reiserfs-devel@vger.kernel.org
Cc: Ivan Shapovalov <intelfx100@gmail.com>
Subject: [PATCH 4/6] reiser4: discard: don't be overly smart when gluing extents in discard_sorted_merged_extents().
Date: Sat, 13 Dec 2014 00:10:30 +0300 [thread overview]
Message-ID: <1418418632-18396-5-git-send-email-intelfx100@gmail.com> (raw)
In-Reply-To: <1418418632-18396-1-git-send-email-intelfx100@gmail.com>
@tailp, @alen and @end must be updated simultaneously because there are expressions
involving combinations of these variables.
Signed-off-by: Ivan Shapovalov <intelfx100@gmail.com>
---
fs/reiser4/discard.c | 12 ++----------
1 file changed, 2 insertions(+), 10 deletions(-)
diff --git a/fs/reiser4/discard.c b/fs/reiser4/discard.c
index a8c5336..86ff6e4 100644
--- a/fs/reiser4/discard.c
+++ b/fs/reiser4/discard.c
@@ -366,18 +366,10 @@ static int discard_sorted_merged_extents(struct list_head *head)
/*
* jump to the glued extent
*/
- if (end + tailp < next_start + next_len) {
- /*
- * the glued extent doesn't
- * fit into the tail padding,
- * so update the last one
- */
- tailp = extent_get_tailp(next_start + next_len,
- d_off, d_uni);
- alen += (next_start + next_len - end);
- }
pos = next;
+ alen += (next_start + next_len - end);
end = next_start + next_len;
+ tailp = extent_get_tailp(end, d_off, d_uni);
/*
* try to glue more extents
*/
--
2.1.3
next prev parent reply other threads:[~2014-12-12 21:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-12 21:10 [PATCH 0/6] reiser4: discard support: "precise discard" aka padding of extents to erase unit boundaries Ivan Shapovalov
2014-12-12 21:10 ` [PATCH 1/6] reiser4: block_alloc: split block allocation accounting logic into separate functions for re-use Ivan Shapovalov
2014-12-12 21:10 ` [PATCH 2/6] reiser4: block_alloc, plugin/space/bitmap: add a method for "exact" block allocation Ivan Shapovalov
2014-12-19 15:43 ` Edward Shishkin
2014-12-12 21:10 ` [PATCH 3/6] reiser4: iterate over extents in discard_atom Ivan Shapovalov
2014-12-12 21:10 ` Ivan Shapovalov [this message]
2014-12-19 20:24 ` [PATCH 4/6] reiser4: discard: don't be overly smart when gluing extents in discard_sorted_merged_extents() Edward Shishkin
2014-12-12 21:10 ` [PATCH 5/6] reiser4: blocknrlist: add operations blocknr_list_del() and blocknr_list_update_extent() Ivan Shapovalov
2014-12-12 21:10 ` [PATCH 6/6] reiser4: discard: allocate extent paddings Ivan Shapovalov
2014-12-13 22:38 ` [PATCH 0/6] reiser4: discard support: "precise discard" aka padding of extents to erase unit boundaries Edward Shishkin
2014-12-14 8:03 ` Ivan Shapovalov
2014-12-15 19:30 ` Edward Shishkin
2014-12-19 15:46 ` Edward Shishkin
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