linux-kernel - [PATCH] f2fs: expose some sectors to user in inline data or dentry case

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Date:   Fri, 13 Oct 2017 10:31:45 -0700
From:   Jaegeuk Kim <jaegeuk@...nel.org>
To:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     Jaegeuk Kim <jaegeuk@...nel.org>
Subject: [PATCH] f2fs: expose some sectors to user in inline data or dentry case

If there's some data written through inline data or dentry, we need to shouw
st_blocks. This fixes reporting zero blocks even though there is small written
data.

Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---
 fs/f2fs/file.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 2eb3efe92018..f7be6c394fa8 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -698,6 +698,11 @@ int f2fs_getattr(const struct path *path, struct kstat *stat,
 				  STATX_ATTR_NODUMP);
 
 	generic_fillattr(inode, stat);
+
+	/* we need to show initial sectors used for inline_data/dentries */
+	if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode))
+		stat->blocks += (stat->size + 511) >> 9;
+
 	return 0;
 }
 
-- 
2.14.0.rc1.383.gd1ce394fe2-goog