From: Kent Overstreet <kent.overstreet@linux.dev>
Date: Sat, 17 May 2025 23:53:50 +0000 (-0400)
Subject: bcachefs: fix bch2_debugfs_flush_buf() when tabstops are in use
X-Git-Tag: block-6.16-20250606~39^2~39
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=8c3fc7cca38459751489f5015f3282a64e452b7e;p=linux-block.git

bcachefs: fix bch2_debugfs_flush_buf() when tabstops are in use

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
---

diff --git a/fs/bcachefs/debug.c b/fs/bcachefs/debug.c
index 4ee5d486b305..4fa70634c90e 100644
--- a/fs/bcachefs/debug.c
+++ b/fs/bcachefs/debug.c
@@ -320,6 +320,11 @@ ssize_t bch2_debugfs_flush_buf(struct dump_iter *i)
 		i->buf.pos -= copied;
 		memmove(i->buf.buf, i->buf.buf + copied, i->buf.pos);
 
+		if (i->buf.last_newline >= copied)
+			i->buf.last_newline -= copied;
+		if (i->buf.last_field >= copied)
+			i->buf.last_field -= copied;
+
 		if (copied != bytes)
 			return -EFAULT;
 	}