From: "Yan, Zheng" <zheng.yan@oracle.com>
To: linux-btrfs@vger.kernel.org, chris Mason <chris.mason@oracle.com>
Subject: [PATCH 11/12] Btrfs: Fix btrfs_drop_extent_cache for skip pinned case
Date: Thu, 12 Nov 2009 17:36:44 +0800 [thread overview]
Message-ID: <4AFBD72C.6010407@oracle.com> (raw)
The check for skip pinned case is wrong, it may breaks the
while loop immaturely.
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
---
fs/btrfs/file.c | 10 +++-------
1 files changed, 3 insertions(+), 7 deletions(-)
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index a4a6d2c..a78fb9b 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -179,18 +179,14 @@ int btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end,
}
flags = em->flags;
if (skip_pinned && test_bit(EXTENT_FLAG_PINNED, &em->flags)) {
- if (em->start <= start &&
- (!testend || em->start + em->len >= start + len)) {
+ if (testend && em->start + em->len >= start + len) {
free_extent_map(em);
write_unlock(&em_tree->lock);
break;
}
- if (start < em->start) {
- len = em->start - start;
- } else {
+ start = em->start + em->len;
+ if (testend)
len = start + len - (em->start + em->len);
- start = em->start + em->len;
- }
free_extent_map(em);
write_unlock(&em_tree->lock);
continue;
--
1.6.2.5
reply other threads:[~2009-11-12 9:36 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4AFBD72C.6010407@oracle.com \
--to=zheng.yan@oracle.com \
--cc=chris.mason@oracle.com \
--cc=linux-btrfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.