kernel/linux.git/include/linux/nstree.h, branch v6.19.11Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v6.19.112025-11-11T09:01:30+00:00nstree: switch to new structures2025-11-11T09:01:30+00:00Christian Braunerbrauner@kernel.org2025-11-10T15:08:17+00:00urn:sha1:a657bc8a75cf40c3d0814fe6488ba4af56528f42
Switch the nstree management to the new combined structures.
Link: https://patch.msgid.link/20251110-work-namespace-nstree-fixes-v1-5-e8a9264e0fb9@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
nstree: add helper to operate on struct ns_tree_{node,root}2025-11-11T09:01:30+00:00Christian Braunerbrauner@kernel.org2025-11-10T15:08:16+00:00urn:sha1:d12ea8062fd31f02beeeb76a7884ab9bc4f5b197
Add helpers that work on the combined rbtree and rculist combined.
This will make the code a lot more managable and legible.
Link: https://patch.msgid.link/20251110-work-namespace-nstree-fixes-v1-4-e8a9264e0fb9@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
nstree: move nstree types into separate header2025-11-11T09:01:30+00:00Christian Braunerbrauner@kernel.org2025-11-10T15:08:15+00:00urn:sha1:1c64fb02ac46f5ca93ac9f5470f124921b4713b7
Introduce two new fundamental data structures for namespace tree
management in a separate header file.
Link: https://patch.msgid.link/20251110-work-namespace-nstree-fixes-v1-3-e8a9264e0fb9@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
nstree: decouple from ns_common header2025-11-11T09:01:30+00:00Christian Braunerbrauner@kernel.org2025-11-10T15:08:14+00:00urn:sha1:ea1549e628ec51dcbea1d158301993364b754d75
Foward declare struct ns_common and remove the include of ns_common.h.
We want ns_common.h to possibly include nstree structures but not the
other way around.
Link: https://patch.msgid.link/20251110-work-namespace-nstree-fixes-v1-2-e8a9264e0fb9@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
nstree: assign fixed ids to the initial namespaces2025-11-03T16:41:17+00:00Christian Braunerbrauner@kernel.org2025-10-29T12:20:28+00:00urn:sha1:3760342fd6312416491d536144e39297fa5b1950
The initial set of namespace comes with fixed inode numbers making it
easy for userspace to identify them solely based on that information.
This has long preceeded anything here.
Similarly, let's assign fixed namespace ids for the initial namespaces.
Kill the cookie and use a sequentially increasing number. This has the
nice side-effect that the owning user namespace will always have a
namespace id that is smaller than any of it's descendant namespaces.
Link: https://patch.msgid.link/20251029-work-namespace-nstree-listns-v4-15-2e6f823ebdc0@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
ns: add missing authorship2025-11-03T16:39:20+00:00Christian Braunerbrauner@kernel.org2025-11-03T16:34:18+00:00urn:sha1:8627bc8c7d815d929ad59407e13458b564870acf
I authored the files a short while ago.
Signed-off-by: Christian Brauner <brauner@kernel.org>
nstree: make struct ns_tree private2025-09-25T07:23:47+00:00Christian Braunerbrauner@kernel.org2025-09-24T11:33:58+00:00urn:sha1:10cdfcd37ade7ce736bc4a1927680f390a6b1f7b
Don't expose it directly. There's no need to do that.
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
nstree: make iterator generic2025-09-19T12:26:14+00:00Christian Braunerbrauner@kernel.org2025-09-12T11:52:40+00:00urn:sha1:885fc8ac0a4dc70f5d87b80b0977292870e35c60
Move the namespace iteration infrastructure originally introduced for
mount namespaces into a generic library usable by all namespace types.
Signed-off-by: Christian Brauner <brauner@kernel.org>