From: 陈国祺 <chenguoqic@163.com>
To: linux-mm@kvack.org
Cc: chenhuacai@loongson.cn, wangrui@loongson.cn
Subject: [BUG] tmpfs:losing data when preallocating space multiple times with fallocate
Date: Mon, 31 Oct 2022 23:13:20 +0800 (CST) [thread overview]
Message-ID: <33b85d82.7764.1842e9ab207.Coremail.chenguoqic@163.com> (raw)
Hi， all
When using the system call fallocate to pre-allocate more space on the tmpfs file
system, if the kernel returns an error EINTR, the original data on the file will
be lost (it seems to be the beginning of the file every time, the size is one page).
- Test case: https://github.com/abner-chenc/abner/blob/master/fallocate.c
- Kernel commit: b229b6ca5abbd63ff40c1396095b1b36b18139c3
- Arch: x86, loongarch64
reply other threads:[~2022-10-31 15:13 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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