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Date:   Thu, 20 Aug 2020 16:42:51 +0500
From:   Petr Gusev <>
Subject: FALLOC_FL_COLLAPSE_RANGE crash guarantees


I’m considering FALLOC_FL_COLLAPSE_RANGE for app log rotation and is wondering what I can get in the case of hard reset/power loss. Is it true that the hole with garbage can appear in the middle of a file? Fs mount options is 'rw,noatime,data=ordered'.

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