https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=218636
Bug ID: 218636
Summary: [fuse] [bug] kernel_cache is enabled by default
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Hello,
>From MOUNT_FUSEFS(8) :
kernel_cache
By default cached buffers of a given file are flushed at each
open(2). This option disables this behaviour
>From sys/fs/fuse/fuse_kernel.h :
FOPEN_KEEP_CACHE: don't invalidate the data cache on open
However, looking at sys/fs/fuse/fuse_node.c, FOPEN_KEEP_CACHE is never used !
Adding the following in the else{} of fuse_vnode_open() corrected the issue :
if (!(fuse_open_flags & FOPEN_KEEP_CACHE)) {
fuse_io_invalbuf(vp, td);
}
Issue found investigating this bug :
https://github.com/vgough/encfs/issues/315
Many thanks !
Ben
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