fuse: acquire dlm lock for the normal buffer read#188
Merged
Conversation
Acquire the dlm lock from fuse server for the normal buffer read path to ensure the distributed page cache across different nodes can be co-existing and consistency. More importantly, this change will correct the DLM lock and folio locks ordering for the buffer read path, thus can avoid the potential deadlock between the buffer read and page cache invalidation processes. Signed-off-by Hai Zhong Zhou <hazhou@ddn.com>
hazhou-ddn
force-pushed
the
redfs-ubuntu-hwe-6.17.0-16.16-24.04.1
branch
from
July 16, 2026 10:19
04794f7 to
9a3719a
Compare
hbirth
reviewed
Jul 16, 2026
hazhou-ddn
force-pushed
the
redfs-ubuntu-hwe-6.17.0-16.16-24.04.1
branch
from
July 17, 2026 07:56
fd38fee to
9a3719a
Compare
hbirth
approved these changes
Jul 17, 2026
hbirth
merged commit Jul 17, 2026
cf349bc
into
DDNStorage:redfs-ubuntu-hwe-6.17.0-16.16-24.04.1
4 checks passed
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Acquire the dlm lock from fuse server for the normal buffer read path to ensure the distributed page cache across different nodes can be co-existing and consistency. More importantly, this change will correct the DLM lock and folio locks ordering for the buffer read path, thus can avoid the potential deadlock between the buffer read and page cache invalidation processes.
Signed-off-by Hai Zhong Zhou hazhou@ddn.com