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-rw-r--r--fs/fuse/file.c11
-rw-r--r--fs/fuse/fuse_i.h3
-rw-r--r--fs/fuse/inode.c3
-rw-r--r--include/uapi/linux/fuse.h7
4 files changed, 18 insertions, 6 deletions
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 8ee0446a8322..cc6ffd23b80f 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -90,7 +90,7 @@ static void fuse_file_put(struct fuse_file *ff, bool sync, bool isdir)
if (refcount_dec_and_test(&ff->count)) {
struct fuse_req *req = ff->reserved_req;
- if (ff->fc->no_open && !isdir) {
+ if (isdir ? ff->fc->no_opendir : ff->fc->no_open) {
/*
* Drop the release request when client does not
* implement 'open'
@@ -125,7 +125,7 @@ int fuse_do_open(struct fuse_conn *fc, u64 nodeid, struct file *file,
ff->fh = 0;
ff->open_flags = FOPEN_KEEP_CACHE; /* Default for no-open */
- if (!fc->no_open || isdir) {
+ if (isdir ? !fc->no_opendir : !fc->no_open) {
struct fuse_open_out outarg;
int err;
@@ -134,11 +134,14 @@ int fuse_do_open(struct fuse_conn *fc, u64 nodeid, struct file *file,
ff->fh = outarg.fh;
ff->open_flags = outarg.open_flags;
- } else if (err != -ENOSYS || isdir) {
+ } else if (err != -ENOSYS) {
fuse_file_free(ff);
return err;
} else {
- fc->no_open = 1;
+ if (isdir)
+ fc->no_opendir = 1;
+ else
+ fc->no_open = 1;
}
}
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 033e30af519f..0920c0c032a0 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -630,6 +630,9 @@ struct fuse_conn {
/** Is open/release not implemented by fs? */
unsigned no_open:1;
+ /** Is opendir/releasedir not implemented by fs? */
+ unsigned no_opendir:1;
+
/** Is fsync not implemented by fs? */
unsigned no_fsync:1;
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 2bbb7c59d6da..1b3f3b67d9f0 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -972,7 +972,8 @@ static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req)
FUSE_DO_READDIRPLUS | FUSE_READDIRPLUS_AUTO | FUSE_ASYNC_DIO |
FUSE_WRITEBACK_CACHE | FUSE_NO_OPEN_SUPPORT |
FUSE_PARALLEL_DIROPS | FUSE_HANDLE_KILLPRIV | FUSE_POSIX_ACL |
- FUSE_ABORT_ERROR | FUSE_MAX_PAGES | FUSE_CACHE_SYMLINKS;
+ FUSE_ABORT_ERROR | FUSE_MAX_PAGES | FUSE_CACHE_SYMLINKS |
+ FUSE_NO_OPENDIR_SUPPORT;
req->in.h.opcode = FUSE_INIT;
req->in.numargs = 1;
req->in.args[0].size = sizeof(*arg);
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index b4967d48bfda..2ac598614a8f 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -122,6 +122,9 @@
* - add FOPEN_CACHE_DIR
* - add FUSE_MAX_PAGES, add max_pages to init_out
* - add FUSE_CACHE_SYMLINKS
+ *
+ * 7.29
+ * - add FUSE_NO_OPENDIR_SUPPORT flag
*/
#ifndef _LINUX_FUSE_H
@@ -157,7 +160,7 @@
#define FUSE_KERNEL_VERSION 7
/** Minor version number of this interface */
-#define FUSE_KERNEL_MINOR_VERSION 28
+#define FUSE_KERNEL_MINOR_VERSION 29
/** The node ID of the root inode */
#define FUSE_ROOT_ID 1
@@ -259,6 +262,7 @@ struct fuse_file_lock {
* FUSE_ABORT_ERROR: reading the device after abort returns ECONNABORTED
* FUSE_MAX_PAGES: init_out.max_pages contains the max number of req pages
* FUSE_CACHE_SYMLINKS: cache READLINK responses
+ * FUSE_NO_OPENDIR_SUPPORT: kernel supports zero-message opendir
*/
#define FUSE_ASYNC_READ (1 << 0)
#define FUSE_POSIX_LOCKS (1 << 1)
@@ -284,6 +288,7 @@ struct fuse_file_lock {
#define FUSE_ABORT_ERROR (1 << 21)
#define FUSE_MAX_PAGES (1 << 22)
#define FUSE_CACHE_SYMLINKS (1 << 23)
+#define FUSE_NO_OPENDIR_SUPPORT (1 << 24)
/**
* CUSE INIT request/reply flags