diff options
| author | Chen Linxuan <chenlinxuan@uniontech.com> | 2025-06-10 10:11:25 +0800 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2025-08-27 14:29:43 +0200 |
| commit | e49a6828aba42bfbd4702e0a06aaae6a67f27285 (patch) | |
| tree | b11d14fe19948547d91f5e0e93ccd169ba147e86 /Documentation/filesystems | |
| parent | 7a37f55af7af868119b4fb69285f5fa03ba8cf35 (diff) | |
doc: fuse: Add max_background and congestion_threshold
As I preparing patches adding selftests for fusectl,
I notice that documentation of max_background and congestion_threshold
is missing.
This patch add some descriptions about these two files.
Cc: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Chen Linxuan <chenlinxuan@uniontech.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/fuse.rst | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/filesystems/fuse.rst b/Documentation/filesystems/fuse.rst index 1e31e87aee68..c589316c8bb3 100644 --- a/Documentation/filesystems/fuse.rst +++ b/Documentation/filesystems/fuse.rst @@ -129,6 +129,20 @@ For each connection the following files exist within this directory: connection. This means that all waiting requests will be aborted an error returned for all aborted and new requests. + max_background + The maximum number of background requests that can be outstanding + at a time. When the number of background requests reaches this limit, + further requests will be blocked until some are completed, potentially + causing I/O operations to stall. + + congestion_threshold + The threshold of background requests at which the kernel considers + the filesystem to be congested. When the number of background requests + exceeds this value, the kernel will skip asynchronous readahead + operations, reducing read-ahead optimizations but preserving essential + I/O, as well as suspending non-synchronous writeback operations + (WB_SYNC_NONE), delaying page cache flushing to the filesystem. + Only the owner of the mount may read or write these files. Interrupting filesystem operations |