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zio: update ZIO type x stage documentation

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- add column for TRIM ZIOs
- remove R from ZIO_STAGE_ISSUE_ASYNC, never happened
- remove I from ZIO_STAGE_VDEV_IO_DONE, never happened

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #15959
This commit is contained in:
Rob N
2024-03-22 06:10:04 +11:00
committed by GitHub
parent c9d8f6c59a
commit 5c4a4f82c8
2 changed files with 58 additions and 55 deletions
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man/man8/zpool-events.8
+29 -28
View File
@@ -25,8 +25,9 @@
.\" Copyright (c) 2018 George Melikov. All Rights Reserved.
.\" Copyright 2017 Nexenta Systems, Inc.
.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
.\" Copyright (c) 2024, Klara Inc.
.\"
.Dd July 11, 2023
.Dd February 28, 2024
.Dt ZPOOL-EVENTS 8
.Os
.
@@ -363,7 +364,7 @@ that is, the bits set in the good data which are cleared in the bad data.
.Sh I/O STAGES
The ZFS I/O pipeline is comprised of various stages which are defined below.
The individual stages are used to construct these basic I/O
operations: Read, Write, Free, Claim, and Ioctl.
operations: Read, Write, Free, Claim, Ioctl and Trim.
These stages may be
set on an event to describe the life cycle of a given I/O request.
.Pp
@@ -372,43 +373,43 @@ tab(:);
l l l .
Stage:Bit Mask:Operations
_:_:_
ZIO_STAGE_OPEN:0x00000001:RWFCI
ZIO_STAGE_OPEN:0x00000001:RWFCIT
ZIO_STAGE_READ_BP_INIT:0x00000002:R----
ZIO_STAGE_WRITE_BP_INIT:0x00000004:-W---
ZIO_STAGE_FREE_BP_INIT:0x00000008:--F--
ZIO_STAGE_ISSUE_ASYNC:0x00000010:RWF--
ZIO_STAGE_WRITE_COMPRESS:0x00000020:-W---
ZIO_STAGE_READ_BP_INIT:0x00000002:R-----
ZIO_STAGE_WRITE_BP_INIT:0x00000004:-W----
ZIO_STAGE_FREE_BP_INIT:0x00000008:--F---
ZIO_STAGE_ISSUE_ASYNC:0x00000010:-WF--T
ZIO_STAGE_WRITE_COMPRESS:0x00000020:-W----
ZIO_STAGE_ENCRYPT:0x00000040:-W---
ZIO_STAGE_CHECKSUM_GENERATE:0x00000080:-W---
ZIO_STAGE_ENCRYPT:0x00000040:-W----
ZIO_STAGE_CHECKSUM_GENERATE:0x00000080:-W----
ZIO_STAGE_NOP_WRITE:0x00000100:-W---
ZIO_STAGE_NOP_WRITE:0x00000100:-W----
ZIO_STAGE_BRT_FREE:0x00000200:--F--
ZIO_STAGE_BRT_FREE:0x00000200:--F---
ZIO_STAGE_DDT_READ_START:0x00000400:R----
ZIO_STAGE_DDT_READ_DONE:0x00000800:R----
ZIO_STAGE_DDT_WRITE:0x00001000:-W---
ZIO_STAGE_DDT_FREE:0x00002000:--F--
ZIO_STAGE_DDT_READ_START:0x00000400:R-----
ZIO_STAGE_DDT_READ_DONE:0x00000800:R-----
ZIO_STAGE_DDT_WRITE:0x00001000:-W----
ZIO_STAGE_DDT_FREE:0x00002000:--F---
ZIO_STAGE_GANG_ASSEMBLE:0x00004000:RWFC-
ZIO_STAGE_GANG_ISSUE:0x00008000:RWFC-
ZIO_STAGE_GANG_ASSEMBLE:0x00004000:RWFC--
ZIO_STAGE_GANG_ISSUE:0x00008000:RWFC--
ZIO_STAGE_DVA_THROTTLE:0x00010000:-W---
ZIO_STAGE_DVA_ALLOCATE:0x00020000:-W---
ZIO_STAGE_DVA_FREE:0x00040000:--F--
ZIO_STAGE_DVA_CLAIM:0x00080000:---C-
ZIO_STAGE_DVA_THROTTLE:0x00010000:-W----
ZIO_STAGE_DVA_ALLOCATE:0x00020000:-W----
ZIO_STAGE_DVA_FREE:0x00040000:--F---
ZIO_STAGE_DVA_CLAIM:0x00080000:---C--
ZIO_STAGE_READY:0x00100000:RWFCI
ZIO_STAGE_READY:0x00100000:RWFCIT
ZIO_STAGE_VDEV_IO_START:0x00200000:RW--I
ZIO_STAGE_VDEV_IO_DONE:0x00400000:RW--I
ZIO_STAGE_VDEV_IO_ASSESS:0x00800000:RW--I
ZIO_STAGE_VDEV_IO_START:0x00200000:RW--IT
ZIO_STAGE_VDEV_IO_DONE:0x00400000:RW---T
ZIO_STAGE_VDEV_IO_ASSESS:0x00800000:RW--IT
ZIO_STAGE_CHECKSUM_VERIFY:0x01000000:R----
ZIO_STAGE_CHECKSUM_VERIFY:0x01000000:R-----
ZIO_STAGE_DONE:0x02000000:RWFCI
ZIO_STAGE_DONE:0x02000000:RWFCIT
.TE
.
.Sh I/O FLAGS