lkml.org 
[lkml]   [2017]   [Jun]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/2] f2fs: report # of free inodes more precisely
Date
If the partition is small, we don't need to report total # of inodes including
hidden free nodes.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/super.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 8e39b850bfc0..3da6fb276f8b 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -680,6 +680,7 @@ static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
struct f2fs_sb_info *sbi = F2FS_SB(sb);
u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
block_t total_count, user_block_count, start_count, ovp_count;
+ u64 avail_node_count;

total_count = le64_to_cpu(sbi->raw_super->block_count);
user_block_count = sbi->user_block_count;
@@ -692,9 +693,16 @@ static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count;
buf->f_bavail = user_block_count - valid_user_blocks(sbi);

- buf->f_files = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
- buf->f_ffree = min(buf->f_files - valid_node_count(sbi),
- buf->f_bavail);
+ avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
+
+ if (avail_node_count > user_block_count) {
+ buf->f_files = user_block_count;
+ buf->f_ffree = buf->f_bavail;
+ } else {
+ buf->f_files = avail_node_count;
+ buf->f_ffree = min(avail_node_count - valid_node_count(sbi),
+ buf->f_bavail);
+ }

buf->f_namelen = F2FS_NAME_LEN;
buf->f_fsid.val[0] = (u32)id;
--
2.13.0.rc1.294.g07d810a77f-goog
\
 
 \ /
  Last update: 2017-06-24 18:28    [W:0.118 / U:6.508 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site