KIO doesn't support jumbo chunks yet, so all requests to jumbo chunks are
silently redirected to user-space. It will be useful to see a message about
this until support has been added to KIO.
#VSTOR-20372
Signed-off-by: Pavel Butsykin <pbutsy...@virtuozzo.com>
---
fs/fuse/kio/pcs/pcs_fuse_kdirect.c | 3 +++
fs/fuse/kio/pcs/pcs_mds_prot.h | 2 ++
2 files changed, 5 insertions(+)
diff --git a/fs/fuse/kio/pcs/pcs_fuse_kdirect.c
b/fs/fuse/kio/pcs/pcs_fuse_kdirect.c
index 3ca1ce2d6bd5..466380c6e945 100644
--- a/fs/fuse/kio/pcs/pcs_fuse_kdirect.c
+++ b/fs/fuse/kio/pcs/pcs_fuse_kdirect.c
@@ -319,6 +319,9 @@ static int kpcs_do_file_open(struct fuse_conn *fc, struct
file *file, struct ino
if (info.sys.map_type != PCS_MAP_PLAIN) {
TRACE("Unsupported map_type:%x, ignore\n", info.sys.map_type);
+
+ if (info.sys.map_type & PCS_JUMBO_CHUNK_FLAG)
+ pr_warn_once("kio: fpath doesn't support jumbo
chunks\n");
return 0;
}
diff --git a/fs/fuse/kio/pcs/pcs_mds_prot.h b/fs/fuse/kio/pcs/pcs_mds_prot.h
index 80c20fde1537..4aca1e970170 100644
--- a/fs/fuse/kio/pcs/pcs_mds_prot.h
+++ b/fs/fuse/kio/pcs/pcs_mds_prot.h
@@ -259,6 +259,8 @@ enum
PCS_MAP_LS = PCS_MAP_COMBINED, /* Log structured storage */
};
+#define PCS_JUMBO_CHUNK_FLAG (1ULL << 63) /* Chunks size > 4G */
+
/* Max inline file size */
#define PCS_MAX_INLINE_SIZE 0x100000 /* 1Mb */
--
2.15.1
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