lkml.org 
[lkml]   [2018]   [Nov]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.4 089/160] btrfs: reset max_extent_size on clear in a bitmap
Date
4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Josef Bacik <jbacik@fb.com>

commit 553cceb49681d60975d00892877d4c871bf220f9 upstream.

We need to clear the max_extent_size when we clear bits from a bitmap
since it could have been from the range that contains the
max_extent_size.

CC: stable@vger.kernel.org # 4.4+
Reviewed-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
fs/btrfs/free-space-cache.c | 2 ++
1 file changed, 2 insertions(+)

--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -1699,6 +1699,8 @@ static inline void __bitmap_clear_bits(s
bitmap_clear(info->bitmap, start, count);

info->bytes -= bytes;
+ if (info->max_extent_size > ctl->unit)
+ info->max_extent_size = 0;
}

static void bitmap_clear_bits(struct btrfs_free_space_ctl *ctl,

\
 
 \ /
  Last update: 2018-11-19 18:21    [W:0.507 / U:52.560 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site