From: Timofey Titovets <nefelim4ag@gmail.com>
To: linux-btrfs@vger.kernel.org
Cc: Timofey Titovets <nefelim4ag@gmail.com>
Subject: [PATCH 2/3] Btrfs: lzo compression must free at least PAGE_SIZE
Date: Fri, 19 May 2017 16:38:34 +0300 [thread overview]
Message-ID: <20170519133835.27843-3-nefelim4ag@gmail.com> (raw)
In-Reply-To: <20170519133835.27843-1-nefelim4ag@gmail.com>
If data compression didn't free at least one PAGE_SIZE, it useless to store that compressed extent
Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>
---
fs/btrfs/lzo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/btrfs/lzo.c b/fs/btrfs/lzo.c
index bd0b0938..637ef1b0 100644
--- a/fs/btrfs/lzo.c
+++ b/fs/btrfs/lzo.c
@@ -207,7 +207,7 @@ static int lzo_compress_pages(struct list_head *ws,
}
/* we're making it bigger, give up */
- if (tot_in > 8192 && tot_in < tot_out) {
+ if (tot_in > 8192 && tot_in < tot_out + PAGE_SIZE) {
ret = -E2BIG;
goto out;
}
--
2.13.0
next prev parent reply other threads:[~2017-05-19 13:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-19 13:38 [PATCH 0/3] Btrfs: compression fixes Timofey Titovets
2017-05-19 13:38 ` [PATCH 1/3] Btrfs: lzo.c pr_debug() deflate->lzo Timofey Titovets
2017-05-19 13:38 ` Timofey Titovets [this message]
2017-05-19 14:17 ` [PATCH 2/3] Btrfs: lzo compression must free at least PAGE_SIZE Lionel Bouton
2017-05-19 20:19 ` Lionel Bouton
2017-05-19 21:15 ` Timofey Titovets
2017-05-20 15:47 ` Lionel Bouton
2017-05-20 16:23 ` Timofey Titovets
2017-05-19 13:38 ` [PATCH 3/3] Btrfs: zlib " Timofey Titovets
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