Re: [CHECKER] Do ext2, jfs and reiserfs respect mount -o sync/dirsyncoption?

[Junfeng Yang]

> It may happen that FISC reads the disk before the write command even finished.
> With all the HD head movement optimization in the kernel (block layer,
> boiling down to TCQ/NCQ), this sounds possible.

FiSC "crashes" the kernel immediately after a file system operation
(creat, mkdir, write, etc) returns.  Presumably, if a file system is
mounted -o sync, all the FS operations should be done synchronously. i.e.,
if creat("foo") returns, the file "foo" better be on disk.  It turns out
not the case for ext2, jfs and reiserfs.

-Junfeng

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