From: David Sterba <dsterba@suse.com>
To: stable@vger.kernel.org
Subject: [PATCH 04/21] btrfs: fix mixed block count of available space
Date: Fri, 3 Jun 2016 17:42:14 +0200 [thread overview]
Message-ID: <1464968534-6356-1-git-send-email-dsterba@suse.com> (raw)
In-Reply-To: <20160603154006.GP29147@suse.cz>
From: Luis de Bethencourt <luisbg@osg.samsung.com>
commit ae02d1bd070767e109f4a6f1bb1f466e9698a355 upstream.
Metadata for mixed block is already accounted in total data and should not
be counted as part of the free metadata space.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=114281
Signed-off-by: David Sterba <dsterba@suse.com>
---
fs/btrfs/super.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index d41e09fe8e38..4e6f842b5ad2 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -2024,6 +2024,7 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf)
struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;
int ret;
u64 thresh = 0;
+ int mixed = 0;
/*
* holding chunk_muext to avoid allocating new chunks, holding
@@ -2049,8 +2050,17 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf)
}
}
}
- if (found->flags & BTRFS_BLOCK_GROUP_METADATA)
- total_free_meta += found->disk_total - found->disk_used;
+
+ /*
+ * Metadata in mixed block goup profiles are accounted in data
+ */
+ if (!mixed && found->flags & BTRFS_BLOCK_GROUP_METADATA) {
+ if (found->flags & BTRFS_BLOCK_GROUP_DATA)
+ mixed = 1;
+ else
+ total_free_meta += found->disk_total -
+ found->disk_used;
+ }
total_used += found->disk_used;
}
@@ -2088,7 +2098,7 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf)
*/
thresh = 4 * 1024 * 1024;
- if (total_free_meta - thresh < block_rsv->size)
+ if (!mixed && total_free_meta - thresh < block_rsv->size)
buf->f_bavail = 0;
buf->f_type = BTRFS_SUPER_MAGIC;
--
2.7.1
next prev parent reply other threads:[~2016-06-03 15:42 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-03 15:40 Btrfs stable patches for 4.5.x David Sterba
2016-06-03 15:42 ` [PATCH 01/21] btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl David Sterba
2016-06-03 15:42 ` [PATCH 02/21] Btrfs: do not create empty block group if we have allocated data David Sterba
2016-06-03 15:42 ` [PATCH 03/21] btrfs: allow balancing to dup with multi-device David Sterba
2016-06-03 15:42 ` David Sterba [this message]
2016-06-03 15:42 ` [PATCH 05/21] btrfs: avoid overflowing f_bfree David Sterba
2016-06-03 15:42 ` [PATCH 06/21] btrfs: fix lock dep warning, move scratch dev out of device_list_mutex and uuid_mutex David Sterba
2016-06-03 15:42 ` [PATCH 07/21] btrfs: add read-only check to sysfs handler of features David Sterba
2016-06-03 15:42 ` [PATCH 08/21] btrfs: add check to sysfs handler of label David Sterba
2016-06-03 15:42 ` [PATCH 09/21] Btrfs: fix divide error upon chunk's stripe_len David Sterba
2016-06-03 15:42 ` [PATCH 10/21] Btrfs: remove BUG_ON()'s in btrfs_map_block David Sterba
2016-06-03 15:42 ` [PATCH 11/21] btrfs: fix lock dep warning move scratch super outside of chunk_mutex David Sterba
2016-06-03 15:42 ` [PATCH 12/21] btrfs: add write protection to SET_FEATURES ioctl David Sterba
2016-06-03 15:42 ` [PATCH 13/21] btrfs: fix int32 overflow in shrink_delalloc() David Sterba
2016-06-03 15:42 ` [PATCH 14/21] Btrfs: fix fspath error deallocation David Sterba
2016-06-03 15:42 ` [PATCH 15/21] btrfs: fix memory leak during RAID 5/6 device replacement David Sterba
2016-06-03 15:42 ` [PATCH 16/21] btrfs: pass the right error code to the btrfs_std_error David Sterba
2016-06-03 15:42 ` [PATCH 17/21] Btrfs: fix for incorrect directory entries after fsync log replay David Sterba
2016-06-03 15:42 ` [PATCH 18/21] Btrfs: fix empty symlink after creating symlink and fsync parent dir David Sterba
2016-06-03 15:42 ` [PATCH 19/21] Btrfs: fix unexpected return value of fiemap David Sterba
2016-06-03 15:42 ` [PATCH 20/21] btrfs: scrub: Set bbio to NULL before calling btrfs_map_block David Sterba
2016-06-03 15:42 ` [PATCH 21/21] btrfs: make state preallocation more speculative in __set_extent_bit David Sterba
2016-06-05 21:48 ` Btrfs stable patches for 4.5.x Greg KH
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=1464968534-6356-1-git-send-email-dsterba@suse.com \
--to=dsterba@suse.com \
--cc=stable@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox