diff options
Diffstat (limited to 'include/fuse_common.h')
| -rw-r--r-- | include/fuse_common.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/fuse_common.h b/include/fuse_common.h index 0481aac..2d686b2 100644 --- a/include/fuse_common.h +++ b/include/fuse_common.h @@ -15,6 +15,7 @@ #define FUSE_COMMON_H_ #include "fuse_opt.h" +#include "fuse_log.h" #include <stdint.h> #include <sys/types.h> @@ -83,7 +84,8 @@ struct fuse_file_info { unsigned int cache_readdir : 1; /** Padding. Reserved for future use*/ - unsigned int padding : 26; + unsigned int padding : 25; + unsigned int padding2 : 32; /** File handle id. May be filled in by filesystem in create, * open, and opendir(). Available in most other file operations on the @@ -246,7 +248,7 @@ struct fuse_loop_config { #define FUSE_CAP_READDIRPLUS (1 << 13) /** - * Indicates that the filesystem supports adaptive readdirplus. + * Indicates that the filesystem supports adaptive readdirplus. * * If FUSE_CAP_READDIRPLUS is not set, this flag has no effect. * @@ -258,6 +260,15 @@ struct fuse_loop_config { * will issue both readdir() and readdirplus() requests, depending on * how much information is expected to be required. * + * As of Linux 4.20, the algorithm is as follows: when userspace + * starts to read directory entries, issue a READDIRPLUS request to + * the filesystem. If any entry attributes have been looked up by the + * time userspace requests the next batch of entries continue with + * READDIRPLUS, otherwise switch to plain READDIR. This will reasult + * in eg plain "ls" triggering READDIRPLUS first then READDIR after + * that because it doesn't do lookups. "ls -l" should result in all + * READDIRPLUS, except if dentries are already cached. + * * This feature is enabled by default when supported by the kernel and * if the filesystem implements both a readdirplus() and a readdir() * handler. |