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[176.199.115.125]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45da0fe2464sm44905739f8f.32.2026.05.19.00.25.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 19 May 2026 00:25:39 -0700 (PDT) Message-ID: Date: Tue, 19 May 2026 09:25:37 +0200 X-Mailing-List: linux-erofs@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/9] fs: add change date to ls output To: Tom Rini Cc: Simon Glass , Huang Jianan , Quentin Schulz , Tony Dinh , =?UTF-8?Q?Timo_tp_Prei=C3=9Fl?= , Francois Berder , Andrew Goodbody , Daniel Palmer , Varadarajan Narayanan , Sughosh Ganu , Ilias Apalodimas , Peng Fan , Marek Vasut , u-boot@lists.denx.de, linux-erofs@lists.ozlabs.org References: <20260518055728.178507-1-heinrich.schuchardt@canonical.com> <20260518181553.GU1858239@bill-the-cat> Content-Language: en-US From: Heinrich Schuchardt In-Reply-To: <20260518181553.GU1858239@bill-the-cat> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 5/18/26 20:15, Tom Rini wrote: > On Mon, May 18, 2026 at 07:57:19AM +0200, Heinrich Schuchardt wrote: > >> The ls command currently only displays the size and name of files and >> directories. >> >> * Add the change date to the output on FAT and ext2/3/4. >> * Use the actual date when updating the change date in ext2/3/4 >> file-systems. > > What's the motivation for this change, and how much of a size impact > does this have in general? > For qemu_arm64_defconfig fs/fs.o shows a growth of 260 bytes in .text and .data sections. Change times let users immediately spot which files were modified most recently (kernel images, device trees). If a device stops booting, seeing a file’s change date helps determine whether a recent change could be the cause. Best regards Heinrich