Messages in this thread | | | Date | Fri, 15 Nov 2019 12:36:34 -0500 | From | "Theodore Y. Ts'o" <> | Subject | Re: [PATCH] fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t |
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On Fri, Nov 15, 2019 at 03:56:38PM +0100, Jan Kara wrote: > With some effort, we could even shrink struct buffer_head from 104 bytes > (on x86_64) to 96 bytes but I don't think that effort is worth it (I'd find > it better use of time to actually work on getting rid of buffer heads > completely).
Is that really realistic? All aside from the very large number of file systems which use buffer_heads that would have to be reworked, the concept of buffer heads is pretty fundamental to how jbd2 is architected.
- Ted
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