[Qemu-devel] [PATCH 0/2] eliminate data write in bdrv_write

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[Qemu-devel] [PATCH 0/2] eliminate data write in bdrv_write_zeroes on Li

From:	Denis V. Lunev
Subject:	[Qemu-devel] [PATCH 0/2] eliminate data write in bdrv_write_zeroes on Linux
Date:	Thu, 25 Dec 2014 08:37:28 +0300

These patches eliminate data writes completely on Linux if fallocate
FALLOC_FL_ZERO_RANGE or FALLOC_FL_PUNCH_HOLE are  supported on
underlying filesystem. This should seriously increase performance in
some cases.

Signed-off-by: Denis V. Lunev <address@hidden>
CC: Kevin Wolf <address@hidden>
CC: Stefan Hajnoczi <address@hidden>

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[Qemu-devel] [PATCH 0/2] eliminate data write in bdrv_write_zeroes on Linux, Denis V. Lunev <=
- [Qemu-devel] [PATCH 2/2] block: use fallocate(FALLOC_FL_PUNCH_HOLE) & fallocate(0) to write zeroes, Denis V. Lunev, 2014/12/25
  - Re: [Qemu-devel] [PATCH 2/2] block: use fallocate(FALLOC_FL_PUNCH_HOLE) & fallocate(0) to write zeroes, Roman Kagan, 2014/12/26
- [Qemu-devel] [PATCH 1/2] block: use fallocate(FALLOC_FL_ZERO_RANGE) in handle_aiocb_write_zeroes, Denis V. Lunev, 2014/12/25
  - Re: [Qemu-devel] [PATCH 1/2] block: use fallocate(FALLOC_FL_ZERO_RANGE) in handle_aiocb_write_zeroes, Roman Kagan, 2014/12/26

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