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author | Jonathan Corbet <corbet@lwn.net> | 2024-09-05 23:01:38 +0300 |
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committer | Jonathan Corbet <corbet@lwn.net> | 2024-09-05 23:01:38 +0300 |
commit | d224338aa105bf3c4c4aa8b2ccdbd675c71ffbfe (patch) | |
tree | b7b6b8c98595c89f7ad5307120cb3156708991bc /Documentation/filesystems | |
parent | eb5ed2fae19745fcb7dd0dcfbfbcd8b2847bc5c1 (diff) | |
parent | 431c1646e1f86b949fa3685efc50b660a364c2b6 (diff) | |
download | linux-d224338aa105bf3c4c4aa8b2ccdbd675c71ffbfe.tar.xz |
Merge tag 'v6.11-rc6' into docs-mw
This is done primarily to get a docs build fix merged via another tree so
that "make htmldocs" stops failing.
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r-- | Documentation/filesystems/caching/fscache.rst | 8 | ||||
-rw-r--r-- | Documentation/filesystems/erofs.rst | 2 | ||||
-rw-r--r-- | Documentation/filesystems/smb/ksmbd.rst | 26 |
3 files changed, 18 insertions, 18 deletions
diff --git a/Documentation/filesystems/caching/fscache.rst b/Documentation/filesystems/caching/fscache.rst index a74d7b052dc1..de1f32526cc1 100644 --- a/Documentation/filesystems/caching/fscache.rst +++ b/Documentation/filesystems/caching/fscache.rst @@ -318,10 +318,10 @@ where the columns are: Debugging ========= -If CONFIG_FSCACHE_DEBUG is enabled, the FS-Cache facility can have runtime -debugging enabled by adjusting the value in:: +If CONFIG_NETFS_DEBUG is enabled, the FS-Cache facility and NETFS support can +have runtime debugging enabled by adjusting the value in:: - /sys/module/fscache/parameters/debug + /sys/module/netfs/parameters/debug This is a bitmask of debugging streams to enable: @@ -343,6 +343,6 @@ This is a bitmask of debugging streams to enable: The appropriate set of values should be OR'd together and the result written to the control file. For example:: - echo $((1|8|512)) >/sys/module/fscache/parameters/debug + echo $((1|8|512)) >/sys/module/netfs/parameters/debug will turn on all function entry debugging. diff --git a/Documentation/filesystems/erofs.rst b/Documentation/filesystems/erofs.rst index cc4626d6ee4f..c293f8e37468 100644 --- a/Documentation/filesystems/erofs.rst +++ b/Documentation/filesystems/erofs.rst @@ -75,7 +75,7 @@ Here are the main features of EROFS: - Support merging tail-end data into a special inode as fragments. - - Support large folios for uncompressed files. + - Support large folios to make use of THPs (Transparent Hugepages); - Support direct I/O on uncompressed files to avoid double caching for loop devices; diff --git a/Documentation/filesystems/smb/ksmbd.rst b/Documentation/filesystems/smb/ksmbd.rst index 6b30e43a0d11..67cb68ea6e68 100644 --- a/Documentation/filesystems/smb/ksmbd.rst +++ b/Documentation/filesystems/smb/ksmbd.rst @@ -13,7 +13,7 @@ KSMBD architecture The subset of performance related operations belong in kernelspace and the other subset which belong to operations which are not really related with performance in userspace. So, DCE/RPC management that has historically resulted -into number of buffer overflow issues and dangerous security bugs and user +into a number of buffer overflow issues and dangerous security bugs and user account management are implemented in user space as ksmbd.mountd. File operations that are related with performance (open/read/write/close etc.) in kernel space (ksmbd). This also allows for easier integration with VFS @@ -24,8 +24,8 @@ ksmbd (kernel daemon) When the server daemon is started, It starts up a forker thread (ksmbd/interface name) at initialization time and open a dedicated port 445 -for listening to SMB requests. Whenever new clients make request, Forker -thread will accept the client connection and fork a new thread for dedicated +for listening to SMB requests. Whenever new clients make a request, the Forker +thread will accept the client connection and fork a new thread for a dedicated communication channel between the client and the server. It allows for parallel processing of SMB requests(commands) from clients as well as allowing for new clients to make new connections. Each instance is named ksmbd/1~n(port number) @@ -34,12 +34,12 @@ thread can decide to pass through the commands to the user space (ksmbd.mountd), currently DCE/RPC commands are identified to be handled through the user space. To further utilize the linux kernel, it has been chosen to process the commands as workitems and to be executed in the handlers of the ksmbd-io kworker threads. -It allows for multiplexing of the handlers as the kernel take care of initiating +It allows for multiplexing of the handlers as the kernel takes care of initiating extra worker threads if the load is increased and vice versa, if the load is -decreased it destroys the extra worker threads. So, after connection is -established with client. Dedicated ksmbd/1..n(port number) takes complete +decreased it destroys the extra worker threads. So, after the connection is +established with the client. Dedicated ksmbd/1..n(port number) takes complete ownership of receiving/parsing of SMB commands. Each received command is worked -in parallel i.e., There can be multiple clients commands which are worked in +in parallel i.e., there can be multiple client commands which are worked in parallel. After receiving each command a separated kernel workitem is prepared for each command which is further queued to be handled by ksmbd-io kworkers. So, each SMB workitem is queued to the kworkers. This allows the benefit of load @@ -49,9 +49,9 @@ performance by handling client commands in parallel. ksmbd.mountd (user space daemon) -------------------------------- -ksmbd.mountd is userspace process to, transfer user account and password that +ksmbd.mountd is a userspace process to, transfer the user account and password that are registered using ksmbd.adduser (part of utils for user space). Further it -allows sharing information parameters that parsed from smb.conf to ksmbd in +allows sharing information parameters that are parsed from smb.conf to ksmbd in kernel. For the execution part it has a daemon which is continuously running and connected to the kernel interface using netlink socket, it waits for the requests (dcerpc and share/user info). It handles RPC calls (at a minimum few @@ -124,7 +124,7 @@ How to run 1. Download ksmbd-tools(https://github.com/cifsd-team/ksmbd-tools/releases) and compile them. - - Refer README(https://github.com/cifsd-team/ksmbd-tools/blob/master/README.md) + - Refer to README(https://github.com/cifsd-team/ksmbd-tools/blob/master/README.md) to know how to use ksmbd.mountd/adduser/addshare/control utils $ ./autogen.sh @@ -133,7 +133,7 @@ How to run 2. Create /usr/local/etc/ksmbd/ksmbd.conf file, add SMB share in ksmbd.conf file. - - Refer ksmbd.conf.example in ksmbd-utils, See ksmbd.conf manpage + - Refer to ksmbd.conf.example in ksmbd-utils, See ksmbd.conf manpage for details to configure shares. $ man ksmbd.conf @@ -145,7 +145,7 @@ How to run $ man ksmbd.adduser $ sudo ksmbd.adduser -a <Enter USERNAME for SMB share access> -4. Insert ksmbd.ko module after build your kernel. No need to load module +4. Insert the ksmbd.ko module after you build your kernel. No need to load the module if ksmbd is built into the kernel. - Set ksmbd in menuconfig(e.g. $ make menuconfig) @@ -175,7 +175,7 @@ Each layer 1. Enable all component prints # sudo ksmbd.control -d "all" -2. Enable one of components (smb, auth, vfs, oplock, ipc, conn, rdma) +2. Enable one of the components (smb, auth, vfs, oplock, ipc, conn, rdma) # sudo ksmbd.control -d "smb" 3. Show what prints are enabled. |