Update fuse-msg-size docs (#1552)

mkdocs/docs/config/cache.md

@@ -172,8 +172,8 @@ the FUSE writeback cache small writes *may* be aggregated by the
 kernel and then sent to mergerfs as one larger request. This can
 greatly improve the throughput for apps which write to files
 inefficiently. The amount the kernel can aggregate is limited by the
-size of a FUSE message. Read the fuse_msg_size section for more
-details.
+size of a FUSE message. Read the [fuse-msg-size](fuse-msg-size.md)
+section for more details.
 
 There is a side effect as a result of enabling writeback
 caching. Underlying files won't ever be opened with O_APPEND or

mkdocs/docs/config/fuse-msg-size.md

@@ -1,8 +1,8 @@
-# fuse_msg_size
+# fuse-msg-size
 
 * type: `UINT|SIZE`
 * default: `1M`
-* example: `fuse_msg_size=1M`
+* example: `fuse-msg-size=1M`
 * If the value is a `SIZE` in the form of `xB`, `xK`, `xM`, `xG`, or
 `xT` then it will choose the closest multiple of the system page
 size. If the value is just an integer without a size multipler suffix
@@ -28,10 +28,10 @@ v6.13](https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/co
 and above the max value supported by the kernel can range from 1
 (4KiB) to 65535 (~256MiB) (assuming a page size of 4KiB.) The default
 used by Linux >= 4.20, and hard coded value used before 4.20, is 32
-(128KiB). In mergerfs it is referred to as `fuse_msg_size` to make it
+(128KiB). In mergerfs it is referred to as `fuse-msg-size` to make it
 clear what it impacts and provide some abstraction.
 
-If the `fuse_msg_size` value provided is more than the system wide
+If the `fuse-msg-size` value provided is more than the system wide
 maximum mergerfs will attempt to increase the system wide value to keep
 the user from needing to set the value using `sysctl`,
 `/etc/sysctl.conf`, or `/proc/sys/fs/fuse/max_pages_limit`.
@@ -47,4 +47,4 @@ v4.20 and v6.13 the max value is 256. On kernels >= v6.13 the maximum
 value is 65535.
 
 NOTE: If you intend to enable `cache.files` you should also set
-[readahead](readahead.md) to match `fuse_msg_size`.
+[readahead](readahead.md) to match `fuse-msg-size`.

mkdocs/docs/known_issues_bugs.md

@@ -12,7 +12,7 @@
     * statx
     * lazy umount
     * oom_score_adj
-    * fuse_msg_size
+    * fuse-msg-size
     * kernel symlink caching
     * kernel readdir caching
     * writeback caching