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authorMiklos Szeredi <miklos@szeredi.hu>2005-09-09 13:10:37 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-09 14:03:47 -0700
commit45323fb76465a9576220c7427dbac7b1e7ad3caf (patch)
tree5d3e5f9a01cdaf6aaabe38520d5bd5b2d744acd5 /include/linux
parent04730fef1f9c7277e5c730b193e681ac095b0507 (diff)
[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 <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/fuse.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/fuse.h b/include/linux/fuse.h
index cdfaa51b901..c65124a213a 100644
--- a/include/linux/fuse.h
+++ b/include/linux/fuse.h
@@ -14,7 +14,7 @@
#define FUSE_KERNEL_VERSION 7
/** Minor version number of this interface */
-#define FUSE_KERNEL_MINOR_VERSION 1
+#define FUSE_KERNEL_MINOR_VERSION 2
/** The node ID of the root inode */
#define FUSE_ROOT_ID 1
@@ -63,6 +63,15 @@ struct fuse_kstatfs {
#define FATTR_MTIME (1 << 5)
#define FATTR_CTIME (1 << 6)
+/**
+ * Flags returned by the OPEN request
+ *
+ * FOPEN_DIRECT_IO: bypass page cache for this open file
+ * FOPEN_KEEP_CACHE: don't invalidate the data cache on open
+ */
+#define FOPEN_DIRECT_IO (1 << 0)
+#define FOPEN_KEEP_CACHE (1 << 1)
+
enum fuse_opcode {
FUSE_LOOKUP = 1,
FUSE_FORGET = 2, /* no reply */