From 45323fb76465a9576220c7427dbac7b1e7ad3caf Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Fri, 9 Sep 2005 13:10:37 -0700 Subject: [PATCH] fuse: more flexible caching Make data caching behavior selectable on a per-open basis instead of per-mount. Compatibility for the old mount options 'kernel_cache' and 'direct_io' is retained in the userspace library (version 2.4.0-pre1 or later). Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/filesystems/fuse.txt | 26 -------------------------- 1 file changed, 26 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/fuse.txt b/Documentation/filesystems/fuse.txt index 83f96cf56960..6b5741e651a2 100644 --- a/Documentation/filesystems/fuse.txt +++ b/Documentation/filesystems/fuse.txt @@ -80,32 +80,6 @@ Mount options allowed to root, but this restriction can be removed with a (userspace) configuration option. -'kernel_cache' - - This option disables flushing the cache of the file contents on - every open(). This should only be enabled on filesystems, where the - file data is never changed externally (not through the mounted FUSE - filesystem). Thus it is not suitable for network filesystems and - other "intermediate" filesystems. - - NOTE: if this option is not specified (and neither 'direct_io') data - is still cached after the open(), so a read() system call will not - always initiate a read operation. - -'direct_io' - - This option disables the use of page cache (file content cache) in - the kernel for this filesystem. This has several affects: - - - Each read() or write() system call will initiate one or more - read or write operations, data will not be cached in the - kernel. - - - The return value of the read() and write() system calls will - correspond to the return values of the read and write - operations. This is useful for example if the file size is not - known in advance (before reading it). - 'max_read=N' With this option the maximum size of read operations can be set. -- cgit v1.2.3