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Fri, 22 Mar 2024 09:30:41 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id /5QnC8FP/WUfRwAAD6G6ig (envelope-from ); Fri, 22 Mar 2024 09:30:41 +0000 Message-ID: Date: Fri, 22 Mar 2024 10:30:40 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/9] mm: Always initialise folio->_deferred_list To: "Matthew Wilcox (Oracle)" , Andrew Morton Cc: linux-mm@kvack.org, David Hildenbrand , Miaohe Lin , Muchun Song , Oscar Salvador References: <20240321142448.1645400-1-willy@infradead.org> <20240321142448.1645400-2-willy@infradead.org> Content-Language: en-US From: Vlastimil Babka In-Reply-To: <20240321142448.1645400-2-willy@infradead.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 308DF40010 X-Rspam-User: X-Stat-Signature: 83xu6z6izen6jiicrf31pmcb1ix6b36s X-Rspamd-Server: rspam01 X-HE-Tag: 1711099842-172144 X-HE-Meta: U2FsdGVkX19Y17DKRQpQev3gwOOsgqBDt1T5fbk7vE6hSYqu25O/cH+VPU3R4u3KeUFNOchWMp8veLuRreuE8NVmrNKEOtr4e8LwLqHgYW6/AOB3akmzcYUxXWW8uP9YesWDIPdOwrcByYUlNTiDOvPeuOnMRC6qfZLbTDIah6s0tEWHkcrvaGSp+cZwyrrGRzBjCW7IefyJGiJhVB64OAuAunIOjzk83YRwXtnl44Zz13dWFjo8nIeaPJNvAoODypGyVyz3W4gjQk3osbuAUr3Cfs0VUIcmazemA5+TKQ/Nhuox3vQXBL4NLRyaz1e+fwpSPR9fm+l4KwH3IIQAuzwooj2q8it8LLfSTWZeWnL87QnWCuQjg90xcREoKwfaK0LfBWll2IDVfB8sXgL+OpYMXu9TzguplfEwp+yP2cG4SQDXsHC5p3QXcNuPTezAxzaf4Mlb4G65pzE62tR4T0fRpRMiRPShS+Ee+AMl5K/auIX6tmUyALbWUHDOl9ZS0M/P0Qd14LQbDdLouLtB+v3ho62yilZ9z9xnTPVRo6m3SHgCrCngXY+jRplqoEbwfSmmH6jvMTCfVxTebNkh1z1ahhwsGWBkzeMsplM/lumUQk475Ow9m8OWZgd9RJqY564oXBPcfvBBXsMSRJW4tgXrJGEBSjIFo+bwMVtiIUdx9Rmh/UIWxPoYExRygGydRPPjdE2ORfgZyebTPuxrpE1kXjWey9yMCWd7M1j6/4fbZrhqE3dN6/MmCdHbf1EhAMTzxpZ+VjRXCRWIWGg4hyqMGG+qte4pQiwzNGfX1lwJWqh6J/1HYF7TAdp7N7iFYA+8VVeAasSmxU2THo+KrwaXUL9c+74KqdIoV3DJ09/JQJj3qqUFCA1vbht4AZLKiQbSnseV2tJb8FRsigdnzeUJXuzjap+VKFA5ZcgNE1n3QaN0yP2cbSRA08J/3IQX2QhQnmALb6sn6Jg2S5W WJVhfZUf a4ArdPc+MIuFBCM4TemsD5X89A3rSvSISsI3937PmbFDDy0HCgUDZHZo952iavKNtTC1EEVsONvZhUuHbEwZt23qojUMM7wtw6Y63u8kfPp2QjViUXY7bCsKNRRcVHHEH/ULn5i86rDlSBg9joXO4Rph/6QijKRqSZENg25jQI77DgkwvWntHp5p4XDljdro0JptHbf5LITQtppLYvY46T0V8TtQm9/0uUzJPXqtz1RA78jSpUCXkK4WzX5dsx8FiRz+kR6UAqbSZoSAzhoX2CEETghWFOSZAZGSXdQMYsiPVWLkeJUSlArDkIAZzeZybuDeENvuBU8u/D4w= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000251, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 3/21/24 15:24, Matthew Wilcox (Oracle) wrote: > For compound pages which are at least order-2 (and hence have a > deferred_list), initialise it and then we can check at free that the > page is not part of a deferred list. We recently found this useful to > rule out a source of corruption. > > Signed-off-by: Matthew Wilcox (Oracle) Acked-by: Vlastimil Babka