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[3/4] design: document metadata directory tree quota changes

Message ID 173102187918.4143993.5564766739701924424.stgit@frogsfrogsfrogs (mailing list archive)
State New
Headers show
Series [1/4] design: move discussion of realtime volumes to a separate section | expand

Commit Message

Darrick J. Wong Nov. 7, 2024, 11:26 p.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Document the changes to the ondisk quota metadata that came in with
metadata directory trees.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 .../internal_inodes.asciidoc                       |    3 +++
 .../XFS_Filesystem_Structure/ondisk_inode.asciidoc |    3 +++
 .../XFS_Filesystem_Structure/superblock.asciidoc   |    3 +++
 3 files changed, 9 insertions(+)
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Patch

diff --git a/design/XFS_Filesystem_Structure/internal_inodes.asciidoc b/design/XFS_Filesystem_Structure/internal_inodes.asciidoc
index 5f4d62201cbd67..40eb57233ce7c0 100644
--- a/design/XFS_Filesystem_Structure/internal_inodes.asciidoc
+++ b/design/XFS_Filesystem_Structure/internal_inodes.asciidoc
@@ -21,6 +21,9 @@  of those inodes have been deallocated and may be reused by future features.
 [options="header"]
 |=====
 | Metadata File                                  | Location
+| xref:Quota_Inodes[User Quota]                  | /quota/user
+| xref:Quota_Inodes[Group Quota]                 | /quota/group
+| xref:Quota_Inodes[Project Quota]               | /quota/project
 | xref:Real-Time_Bitmap_Inode[Realtime Bitmap]   | /rtgroups/*.bitmap
 | xref:Real-Time_Summary_Inode[Realtime Summary] | /rtgroups/*.summary
 |=====
diff --git a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc
index e28929907147b7..6e52e5fd3d6c1e 100644
--- a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc
+++ b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc
@@ -199,6 +199,9 @@  directory tree.
 [source, c]
 ----
 enum xfs_metafile_type {
+     XFS_METAFILE_USRQUOTA,
+     XFS_METAFILE_GRPQUOTA,
+     XFS_METAFILE_PRJQUOTA,
      XFS_METAFILE_RTBITMAP,
      XFS_METAFILE_RTSUMMARY,
 };
diff --git a/design/XFS_Filesystem_Structure/superblock.asciidoc b/design/XFS_Filesystem_Structure/superblock.asciidoc
index bffb1659d0ba38..f0455304635737 100644
--- a/design/XFS_Filesystem_Structure/superblock.asciidoc
+++ b/design/XFS_Filesystem_Structure/superblock.asciidoc
@@ -259,6 +259,9 @@  Quota flags. It can be a combination of the following flags:
 | +XFS_PQUOTA_CHKD+		| Project quotas have been checked.
 |=====
 
+If the +XFS_SB_FEAT_INCOMPAT_METADIR+ feature is enabled, the +sb_qflags+ field
+will persist across mounts if no quota mount options are provided.
+
 *sb_flags*::
 Miscellaneous flags.