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9p: remove support for the "handle" backend

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The "handle" fsdev backend was deprecated in QEMU 2.12.0 with:

commit db3b3c7281
Author: Greg Kurz <groug@kaod.org>
Date:   Mon Jan 8 11:18:23 2018 +0100

    9pfs: deprecate handle backend

    This backend raise some concerns:

    - doesn't support symlinks
    - fails +100 tests in the PJD POSIX file system test suite [1]
    - requires the QEMU process to run with the CAP_DAC_READ_SEARCH
      capability, which isn't recommended for security reasons

    This backend should not be used and wil be removed. The 'local'
    backend is the recommended alternative.

    [1] https://www.tuxera.com/community/posix-test-suite/

    Signed-off-by: Greg Kurz <groug@kaod.org>
    Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
    Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

It has passed the two release cooling period without any complaint.

Remove it now.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Greg Kurz
2018-12-12 14:18:10 +01:00
parent 75607e0dcc
commit 93aee84f57
5 changed files with 4 additions and 726 deletions
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3
fsdev/qemu-fsdev.c
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@ -23,9 +23,6 @@ static QTAILQ_HEAD(FsDriverEntry_head, FsDriverListEntry) fsdriver_entries =
static FsDriverTable FsDrivers[] = {
{ .name = "local", .ops = &local_ops},
#ifdef CONFIG_OPEN_BY_HANDLE
{ .name = "handle", .ops = &handle_ops},
#endif
{ .name = "synth", .ops = &synth_ops},
{ .name = "proxy", .ops = &proxy_ops},
};