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DM4PR10MB6886.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Dec 2024 21:41:23.4100 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: mcL91ytiyC/H6e1OEcPRlGHB6GN4xYSgGEXma8cKuTf6FSEBezraZwehST56lT8xjzt1aWSrKqW/iyn0jfxPWC7nwuf0B8pmrWWVo9/eyiruN/7QLq2NvT5dSWvgFFH3 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR10MB4769 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2024-12-14_09,2024-12-13_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 malwarescore=0 bulkscore=0 spamscore=0 mlxlogscore=999 suspectscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2411120000 definitions=main-2412140178 X-Proofpoint-GUID: 7CiisvsbIPbiaPU8CMaKsdYONjpedTnW X-Proofpoint-ORIG-GUID: 7CiisvsbIPbiaPU8CMaKsdYONjpedTnW Hi Greg, On 14/12/24 23:36, Greg KH wrote: > On Sat, Dec 14, 2024 at 05:57:01PM +0000, Sherry Yang wrote: >> Hi, >> >>> On Dec 14, 2024, at 6:26 AM, Sasha Levin wrote: >>> >>> [ Sasha's backport helper bot ] >>> >>> Hi, >>> >>> The upstream commit SHA1 provided is correct: 89fc548767a2155231128cb98726d6d2ea1256c9 >>> >>> WARNING: Author mismatch between patch and upstream commit: >>> Backport author: Sherry Yang >>> Commit author: Sungjong Seo >>> >>> >>> Status in newer kernel trees: >>> 6.12.y | Present (exact SHA1) >>> 6.6.y | Present (different SHA1: a7ac198f8dba) >>> 6.1.y | Not found >>> 5.15.y | Not found >> >> I didn’t backport the commit to linux-stable-6.1.y, because 6.1.y didn’t backport the culprit commit >> a3ff29a95fde ("exfat: support dynamic allocate bh for exfat_entry_set_cache”), so not influenced. >> >> However, both linux-stable-5.15.y and linux-stable-5.10.y actually backported the culprit commit. So I’m trying to fix it on 5.15.y and 5.10.y. >> >> Let me know if you have more questions about it. > > That's confusing, why doesn't 6.1.y have that commit? Shouldn't we also > add it there along with this one? > https://lore.kernel.org/all/20230809103650.353831735@linuxfoundation.org/#t Commit a3ff29a95fde ("exfat: support dynamic allocate bh for exfat_entry_set_cache”) which is present in 5.10.y and 5.15.y but not in 6.1.y is added as a stable-dependency "Stable-dep-of: d42334578eba ("exfat: check if filename entries exceeds max filename length") ", but this(d42334578eba - filename length check) is present in 6.1.y without commit a3ff29a95fde , so probably stable-dep-of is not accurate. Given that now we already have a3ff29a95fde ("exfat: support dynamic allocate bh for exfat_entry_set_cache”) to 5.15.y and 5.10.y, I think we should add it and the fix to 6.1.y as well. For 6.1.y here are the upstream commits: (Starting from 1 -- cleanly applies and builds fine, haven't done any exfat related testing though.) 1. a3ff29a95fde ("exfat: support dynamic allocate bh for exfat_entry_set_cache”) 2. commit: 89fc548767a2 ("exfat: fix potential deadlock on __exfat_get_dentry_set") Let me know if you want me to send two patches instead, I can do that. Thanks, Harshit > thanks, > > greg k-h >