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[83.60.147.6]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-498365cbbe5sm13633793f8f.42.2026.11.11.10.06.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Nov 2026 10:06:59 -0800 (PST) Message-ID: Date: Wed, 11 Nov 2026 19:06:58 +0100 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] hugetlbfs: report inode limits without a memory subpool To: Hungyu Lin , muchun.song@linux.dev Cc: osalvador@suse.de, david@kernel.org, akpm@linux-foundation.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, jm5905938@gmail.com References: <20261111130145.96534-1-dennylin0707@gmail.com> Content-Language: en-US From: "Jose A. Perez de Azpillaga" In-Reply-To: <20261111130145.96534-1-dennylin0707@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 11/11/26 2:01 PM, Hungyu Lin wrote: > A hugetlbfs mount can limit inodes with nr_inodes independently of size > or min_size. hugetlbfs_statfs() only fills f_files and f_ffree when a > memory subpool exists, so an inode-only limit is enforced but its inode > counts are reported as zero. > > For example, a fresh mount with nr_inodes=4 reports zero total and free > inodes instead of 4 and 3. This hides the inode limit from tools such > as df -i, even when creating another file fails with ENOSPC. > > Report the inode counters when an inode limit is configured, > independently of the memory subpool. Preserve the existing zero and -1 > results for unlimited inode counts. > > Fixes: 74a8a65c5261 ("[PATCH] Fix hugetlbfs_statfs() reporting of block limits") > Signed-off-by: Hungyu Lin > Reviewed-by: Aveline Noir > Tested-by: Aveline Noir LGTM: Reviewed-by: Jose A. Perez de Azpillaga -- cheers, jose a. p-a