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Tsirkin" , Jason Wang , Alasdair Kergon , Mike Snitzer , Mikulas Patocka , Song Liu , Yu Kuai , Vineeth Vijayan , "Martin K. Petersen" , linux-m68k@lists.linux-m68k.org, linux-um@lists.infradead.org, drbd-dev@lists.linbit.com, nbd@other.debian.org, linuxppc-dev@lists.ozlabs.org, ceph-devel@vger.kernel.org, virtualization@lists.linux.dev, xen-devel@lists.xenproject.org, linux-bcache@vger.kernel.org, dm-devel@lists.linux.dev, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, nvdimm@lists.linux.dev, linux-nvme@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-block@vger.kernel.org Subject: Re: [PATCH 10/26] xen-blkfront: don't disable cache flushes when they fail Message-ID: References: <20240611051929.513387-1-hch@lst.de> <20240611051929.513387-11-hch@lst.de> <20240612150030.GA29188@lst.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20240612150030.GA29188@lst.de> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240612_085619_446078_8C2833EF X-CRM114-Status: GOOD ( 32.20 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org T24gV2VkLCBKdW4gMTIsIDIwMjQgYXQgMDU6MDA6MzBQTSArMDIwMCwgQ2hyaXN0b3BoIEhlbGx3 aWcgd3JvdGU6Cj4gT24gV2VkLCBKdW4gMTIsIDIwMjQgYXQgMTA6MDE6MThBTSArMDIwMCwgUm9n ZXIgUGF1IE1vbm7DqSB3cm90ZToKPiA+IE9uIFR1ZSwgSnVuIDExLCAyMDI0IGF0IDA3OjE5OjEw QU0gKzAyMDAsIENocmlzdG9waCBIZWxsd2lnIHdyb3RlOgo+ID4gPiBibGtmcm9udCBhbHdheXMg aGFkIGEgcm9idXN0IG5lZ290aWF0aW9uIHByb3RvY29sIGZvciBkZXRlY3RpbmcgYSB3cml0ZQo+ ID4gPiBjYWNoZS4gIFN0b3Agc2ltcGx5IGRpc2FibGluZyBjYWNoZSBmbHVzaGVzIHdoZW4gdGhl eSBmYWlsIGFzIHRoYXQgaXMKPiA+ID4gYSBncmF2ZSBlcnJvci4KPiA+IAo+ID4gSXQncyBteSB1 bmRlcnN0YW5kaW5nIHRoZSBjdXJyZW50IGNvZGUgYXR0ZW1wdHMgdG8gY292ZXIgdXAgZm9yIHRo ZQo+ID4gbGFjayBvZiBndWFyYW50ZWVzIHRoZSBmZWF0dXJlIGl0c2VsZiBwcm92aWRlczoKPiAK PiA+IFNvIGV2ZW4gd2hlbiB0aGUgZmVhdHVyZSBpcyBleHBvc2VkLCB0aGUgYmFja2VuZCBtaWdo dCByZXR1cm4KPiA+IEVPUE5PVFNVUFAgZm9yIHRoZSBmbHVzaC9iYXJyaWVyIG9wZXJhdGlvbnMu Cj4gCj4gSG93IGlzIHRoaXMgc3VwcG9zZWQgdG8gd29yaz8gIEkgbWVhbiBpbiB0aGUgd29yc3Qg Y2FzZSB3ZSBjb3VsZAo+IGp1c3QgaW1tZWRpYXRlbHkgY29tcGxldGUgdGhlIGZsdXNoIHJlcXVl c3RzIGluIHRoZSBkcml2ZXIsIGJ1dAo+IHdlJ3JlIHJlYWxseSBseWluZyB0byBhbnkgdXBwZXIg bGF5ZXIuCgpSaWdodC4gIEFGQUlDVCBhZHZlcnRpc2luZyAiZmVhdHVyZS1iYXJyaWVyIiBhbmQv b3IKImZlYXR1cmUtZmx1c2gtY2FjaGUiIGNvdWxkIGJlIGRvbmUgYmFzZWQgb24gd2hldGhlciBi bGtiYWNrCnVuZGVyc3RhbmQgdGhvc2UgY29tbWFuZHMsIG5vdCBvbiB3aGV0aGVyIHRoZSB1bmRl cmx5aW5nIHN0b3JhZ2UKc3VwcG9ydHMgdGhlIGVxdWl2YWxlbnQgb2YgdGhlbS4KCldvcnN0IGNh c2Ugd2UgY2FuIHByaW50IGEgd2FybmluZyBtZXNzYWdlIG9uY2UgYWJvdXQgdGhlIHVuZGVybHlp bmcKc3RvcmFnZSBmYWlsaW5nIHRvIGNvbXBsZXRlIGZsdXNoL2JhcnJpZXIgcmVxdWVzdHMsIGFu ZCB0aGF0IGRhdGEKaW50ZWdyaXR5IG1pZ2h0IG5vdCBiZSBndWFyYW50ZWVkIGdvaW5nIGZvcndh cmQsIGFuZCBub3QgcHJvcGFnYXRlIHRoZQplcnJvciB0byB0aGUgdXBwZXIgbGF5ZXI/CgpXaGF0 IHdvdWxkIGJlIHRoZSBjb25zZXF1ZW5jZSBvZiBwcm9wYWdhdGluZyBhIGZsdXNoIGVycm9yIHRv IHRoZQp1cHBlciBsYXllcnM/Cgo+ID4gU3VjaCBmYWlsdXJlIGlzIHRpZWQgb24gd2hldGhlciB0 aGUgdW5kZXJseWluZyBibGtiYWNrIHN0b3JhZ2UKPiA+IHN1cHBvcnRzIFJFUV9PUF9XUklURSB3 aXRoIFJFUV9QUkVGTFVTSCBvcGVyYXRpb24uICBibGtiYWNrIHdpbGwKPiA+IGV4cG9zZSAiZmVh dHVyZS1iYXJyaWVyIiBhbmQvb3IgImZlYXR1cmUtZmx1c2gtY2FjaGUiIHdpdGhvdXQga25vd2lu Zwo+ID4gd2hldGhlciB0aGUgdW5kZXJseWluZyBiYWNrZW5kIHN1cHBvcnRzIHRob3NlIG9wZXJh dGlvbnMsIGhlbmNlIHRoZQo+ID4gd2VpcmQgZmFsbGJhY2sgaW4gYmxrZnJvbnQuCj4gCj4gSWYg d2UgYXJlIGp1c3QgdGFsa2luZyBhYm91dCB0aGUgTGludXggYmxrYmFjayBkcml2ZXIgKEkga25v dyB0aGVyZQo+IHByb2JhYmx5IGFyZSBhIGZldyBvdGhlciBpbXBsZW1lbnRhdGlvbnMpIGl0IHdv bid0IGV2ZXJ5IGRvIHRoYXQuCj4gSSBzZWUgaXQgaGFzIGNvZGUgdG8gZG8gc28sIGJ1dCB0aGUg TGludXggYmxvY2sgbGF5ZXIgZG9lc24ndAo+IGFsbG93IHRoZSBmbHVzaCBvcGVyYXRpb24gdG8g cmFuZG9tbHkgZmFpbCBpZiBpdCB3YXMgcHJldmlvdXNseQo+IGFkdmVydGlzZWQuICBOb3RlIHRo YXQgZXZlbiBibGtmcm9udCBjb25mb3JtcyB0byB0aGlzIGFzIGl0IGZpeGVzCj4gdXAgdGhlIHJl dHVybiB2YWx1ZSB3aGVuIGl0IGdldHMgdGhpcyBub3RzdXBwIGVycm9yIHRvIG9rLgoKWWVzLCBJ J20gYWZyYWlkIGl0J3MgaW1wb3NzaWJsZSB0byBrbm93IHdoYXQgdGhlIG11bHRpcGxlIGluY2Fy bmF0aW9ucwpvZiBhbGwgdGhlIHNjYXR0ZXJlZCBibGtiYWNrIGltcGxlbWVudGF0aW9ucyBwb3Nz aWJseSBkbyAoRnJlZUJTRCwKTmV0QlNELCBRRU1VIGFuZCBibGt0YXAgYXQgbGVhc3QgSSBrbm93 IG9mKS4KCj4gPiBPdmVyYWxsIGJsa2JhY2sgc2hvdWxkIGVuc3VyZSB0aGF0IFJFUV9QUkVGTFVT SCBpcyBzdXBwb3J0ZWQgYmVmb3JlCj4gPiBleHBvc2luZyAiZmVhdHVyZS1iYXJyaWVyIiBvciAi ZmVhdHVyZS1mbHVzaC1jYWNoZSIsIGFzIHRoZW4gdGhlCj4gPiBleHBvc2VkIGZlYXR1cmVzIHdv dWxkIHJlYWxseSBtYXRjaCB3aGF0IHRoZSB1bmRlcmx5aW5nIGJhY2tlbmQKPiA+IHN1cHBvcnRz IChyYXRoZXIgdGhhbiB0aGUgY29tbWFuZHMgYmxrYmFjayBrbm93cyBhYm91dCkuCj4gCj4gWWVz LiAgVGhlIGluLXRyZWUgeGVuLWJsa2JhY2sgZG9lcyB0aGF0LCBidXQgZXZlbiB3aXRob3V0IHRo YXQgdGhlCj4gTGludXggYmxvY2sgbGF5ZXIgYWN0dWFsbHkgbWFrZXMgc3VyZSBmbHVzaGVzIHNl bnQgYnkgdXBwZXIgbGF5ZXJzCj4gYWx3YXlzIHN1Y2NlZWQgZXZlbiB3aGVuIG5vdCBzdXBwb3J0 ZWQuCgpHaXZlbiB0aGUgZGVzY3JpcHRpb24gb2YgdGhlIGZlYXR1cmUgaW4gdGhlIGJsa2lmIGhl YWRlciwgSSdtIGFmcmFpZAp3ZSBjYW5ub3QgZ3VhcmFudGVlIHRoYXQgc2VlaW5nIHRoZSBmZWF0 dXJlIGV4cG9zZWQgaW1wbGllcyBiYXJyaWVyIG9yCmZsdXNoIHN1cHBvcnQsIHNpbmNlIHRoZSBy ZXF1ZXN0IGNvdWxkIGZhaWwgYXQgYW55IHRpbWUgKG9yIGV2ZW4gZnJvbQp0aGUgc3RhcnQgb2Yg dGhlIGRpc2sgYXR0YWNobWVudCkgYW5kIGl0IHdvdWxkIHN0aWxsIHNhZGx5IGJlIGEgY29ycmVj dAppbXBsZW1lbnRhdGlvbiBnaXZlbiB0aGUgZGVzY3JpcHRpb24gb2YgdGhlIG9wdGlvbnMuCgpU aGFua3MsIFJvZ2VyLgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fCkxpbnV4IE1URCBkaXNjdXNzaW9uIG1haWxpbmcgbGlzdApodHRwOi8vbGlz dHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LW10ZC8K