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Sun, 20 Sep 2026 09:04:07 -0700 (PDT) Received: from bazzite ([138.122.221.5]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-33c3311a111sm11108715eec.6.2026.09.20.09.04.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 20 Sep 2026 09:04:07 -0700 (PDT) From: Davy Felipe To: Viacheslav Dubeyko , John Paul Adrian Glaubitz , Yangtao Li Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Davy Felipe Subject: [PATCH] hfs: propagate extent B-tree insertion errors Date: Sun, 20 Sep 2026 13:02:13 -0300 Message-ID: <20260920160213.285316-1-davyfelipe34@gmail.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit hfs_brec_insert() may fail while inserting a new extent record, but __hfs_ext_write_extent() currently ignores its return value and clears HFS_FLG_EXT_DIRTY and HFS_FLG_EXT_NEW as if the insertion had succeeded. Propagate the error returned by hfs_brec_insert() and only clear the extent flags after a successful insertion. Fault injection of -EIO into the extent B-tree insertion path confirmed that __hfs_ext_write_extent() returned success despite the insertion failure. With the error propagated, the failure is returned to the caller instead. Signed-off-by: Davy Felipe --- fs/hfs/extent.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/hfs/extent.c b/fs/hfs/extent.c index f066a99a863b..77ba0f63fcb9 100644 --- a/fs/hfs/extent.c +++ b/fs/hfs/extent.c @@ -121,7 +121,10 @@ static int __hfs_ext_write_extent(struct inode *inode, struct hfs_find_data *fd) res = hfs_bmap_reserve(fd->tree, fd->tree->depth + 1); if (res) return res; - hfs_brec_insert(fd, HFS_I(inode)->cached_extents, sizeof(hfs_extent_rec)); + res = hfs_brec_insert(fd, HFS_I(inode)->cached_extents, + sizeof(hfs_extent_rec)); + if (res) + return res; HFS_I(inode)->flags &= ~(HFS_FLG_EXT_DIRTY|HFS_FLG_EXT_NEW); } else { if (res) -- 2.55.0