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Re: [RFC/PATCH 0/4] Re: Bug#605009: serious performance regression with ext4

On Mon, 29 Nov 2010, Theodore Tso wrote:
> BTW, if you had opened the file handle in subsequent passes using
> O_RDONLY|O_NOATIME, the use of fdatasync() instead of fsync() might not
> have been necessary.   And as far as the comments in patch #4 was

Hum, fsync()/fdatasync() require a fd opened for writing, so this is not
really possible? (Or at least the man page says so and indicates EBADF as
return value in that case)

Raphaël Hertzog ◈ Debian Developer

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