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Message-ID: <172554793836.1268668.15514751262481415081.b4-ty@mit.edu> Date: Thu, 5 Sep 2024 10:53:44 -0400 From: "Theodore Ts'o" <tytso@....edu> To: linux-ext4@...r.kernel.org, Ojaswin Mujoo <ojaswin@...ux.ibm.com> Cc: "Theodore Ts'o" <tytso@....edu>, Ritesh Harjani <ritesh.list@...il.com>, linux-kernel@...r.kernel.org, Kemeng Shi <shikemeng@...weicloud.com>, syzbot+1ad8bac5af24d01e2cbd@...kaller.appspotmail.com Subject: Re: [PATCH v3 1/2] ext4: Check stripe size compatibility on remount as well On Fri, 30 Aug 2024 12:50:57 +0530, Ojaswin Mujoo wrote: > We disable stripe size in __ext4_fill_super if it is not a multiple of > the cluster ratio however this check is missed when trying to remount. > This can leave us with cases where stripe < cluster_ratio after > remount:set making EXT4_B2C(sbi->s_stripe) become 0 that can cause some > unforeseen bugs like divide by 0. > > Fix that by adding the check in remount path as well. > > [...] Applied, thanks! [1/2] ext4: Check stripe size compatibility on remount as well commit: ee85e0938aa8f9846d21e4d302c3cf6a2a75110d [2/2] ext4: Convert EXT4_B2C(sbi->s_stripe) users to EXT4_NUM_B2C commit: ff2beee206d23f49d022650122f81285849033e4 Best regards, -- Theodore Ts'o <tytso@....edu>
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