From 1552b467fcd7751360299c5139382d78538e12b3 Mon Sep 17 00:00:00 2001 From: Nikolaus Rath Date: Sat, 6 Apr 2019 18:34:57 +0100 Subject: Add support for in-kernel readdir caching. Fixes: #394. --- include/fuse_common.h | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/fuse_common.h b/include/fuse_common.h index 5cf9fee..823a37d 100644 --- a/include/fuse_common.h +++ b/include/fuse_common.h @@ -55,9 +55,11 @@ struct fuse_file_info { /** Can be filled in by open, to use direct I/O on this file. */ unsigned int direct_io : 1; - /** Can be filled in by open, to indicate that currently - cached file data (that the filesystem provided the last - time the file was open) need not be invalidated. */ + /** Can be filled in by open. It signals the kernel that any + currently cached file data (ie., data that the filesystem + provided the last time the file was open) need not be + invalidated. Has no effect when set in other contexts (in + particular it does nothing when set by opendir()). */ unsigned int keep_cache : 1; /** Indicates a flush operation. Set in flush operation, also @@ -74,8 +76,14 @@ struct fuse_file_info { May only be set in ->release(). */ unsigned int flock_release : 1; - /** Padding. Do not use*/ - unsigned int padding : 27; + /** Can be filled in by opendir. It signals the kernel to + enable caching of entries returned by readdir(). Has no + effect when set in other contexts (in particular it does + nothing when set by open()). */ + unsigned int cache_readdir : 1; + + /** Padding. Reserved for future use*/ + unsigned int padding : 26; /** File handle id. May be filled in by filesystem in create, * open, and opendir(). Available in most other file operations on the -- cgit v1.2.3