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Date: Thu, 23 Feb 2012 14:01:24 -0800 From: Andi Kleen <andi@...stfloor.org> To: Neil Clarkson <neilaclarkson@...il.com> Cc: linux-kernel@...r.kernel.org Subject: Re: ext4 superblock last write time clearly isnt the last write time Neil Clarkson <neilaclarkson@...il.com> writes: > Isn't the s_wtime field of the ext4 superblock supposed to show the > time, in seconds since the epoch, of the last write to the file > system? Last write to the super block. Obviously last write to the file system would be incredible expensive: every write to the file system would cause a super block write too, doubling all write IO. -Andi -- ak@...ux.intel.com -- Speaking for myself only -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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