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+From 0498fc0a812e53040a9527f7343089b8b1aa70a7 Mon Sep 17 00:00:00 2001
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+From: Petr Vorel <petr.vorel@gmail.com>
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+Date: Wed, 13 Nov 2019 01:26:06 +0100
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+Subject: [PATCH 3/3] fanotify: Detect val vs. __val
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+ fanotify_event_info_fid.fsid member
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+MIME-Version: 1.0
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+Content-Type: text/plain; charset=UTF-8
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+Content-Transfer-Encoding: 8bit
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+
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+via FSID_VAL_MEMBER() macro and autotools detection.
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+
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+This fixes build on musl, which also defines fanotify_event_info_fid,
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+but uses fsid_t type for fsid instead of __kernel_fsid_t.
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+fsid_t type has __val[2] member (unlike val[2] in __kernel_fsid_t).
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+
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+Fixed error:
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+
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+fanotify13.c: In function ‘do_test’:
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+fanotify13.c:278:20: error: ‘fsid_t’ {aka ‘struct __fsid_t’} has no member named ‘val’; did you mean ‘__val’?
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+ event_fid->fsid.val[0],
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+ ^~~
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+../../../../include/tst_test.h:49:53: note: in definition of macro ‘tst_res’
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+ tst_res_(__FILE__, __LINE__, (ttype), (arg_fmt), ##__VA_ARGS__)
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+ ^~~~~~~~~~~
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+fanotify13.c:279:20: error: ‘fsid_t’ {aka ‘struct __fsid_t’} has no member named ‘val’; did you mean ‘__val’?
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+ event_fid->fsid.val[1],
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+
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+Acked-by: Cyril Hrubis <chrubis@suse.cz>
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+Acked-by: Jan Stancek <jstancek@redhat.com>
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+Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
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+[Upstream status: 0498fc0a812e53040a9527f7343089b8b1aa70a7]
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+---
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+ m4/ltp-fanotify.m4 | 1 +
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+ testcases/kernel/syscalls/fanotify/fanotify.h | 6 ++++++
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+ testcases/kernel/syscalls/fanotify/fanotify13.c | 8 ++++----
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+ testcases/kernel/syscalls/fanotify/fanotify15.c | 4 ++--
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+ 4 files changed, 13 insertions(+), 6 deletions(-)
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+
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+diff --git a/m4/ltp-fanotify.m4 b/m4/ltp-fanotify.m4
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+index e7b77d8a4..f2e31eb68 100644
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+--- a/m4/ltp-fanotify.m4
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++++ b/m4/ltp-fanotify.m4
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+@@ -4,4 +4,5 @@ dnl Copyright (c) 2019 Petr Vorel <petr.vorel@gmail.com>
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+ AC_DEFUN([LTP_CHECK_FANOTIFY],[
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+ AC_CHECK_TYPES([struct fanotify_event_info_header],,,[#include <sys/fanotify.h>])
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+ AC_CHECK_TYPES([struct fanotify_event_info_fid],,,[#include <sys/fanotify.h>])
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++AC_CHECK_MEMBERS([struct fanotify_event_info_fid.fsid.__val],,,[#include <sys/fanotify.h>])
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+ ])
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+diff --git a/testcases/kernel/syscalls/fanotify/fanotify.h b/testcases/kernel/syscalls/fanotify/fanotify.h
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+index 9d2fded13..5370e30bb 100644
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+--- a/testcases/kernel/syscalls/fanotify/fanotify.h
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++++ b/testcases/kernel/syscalls/fanotify/fanotify.h
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+@@ -143,6 +143,12 @@ struct fanotify_event_info_fid {
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+ };
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+ #endif /* HAVE_STRUCT_FANOTIFY_EVENT_INFO_FID */
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+
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++#ifdef HAVE_STRUCT_FANOTIFY_EVENT_INFO_FID_FSID___VAL
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++# define FSID_VAL_MEMBER(fsid, i) (fsid.__val[i])
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++#else
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++# define FSID_VAL_MEMBER(fsid, i) (fsid.val[i])
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++#endif /* HAVE_STRUCT_FANOTIFY_EVENT_INFO_FID_FSID___VAL */
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++
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+ #ifdef HAVE_NAME_TO_HANDLE_AT
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+ /*
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+ * Helper function used to obtain fsid and file_handle for a given path.
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+diff --git a/testcases/kernel/syscalls/fanotify/fanotify13.c b/testcases/kernel/syscalls/fanotify/fanotify13.c
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+index 030734285..b0d9fb5b6 100644
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+--- a/testcases/kernel/syscalls/fanotify/fanotify13.c
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++++ b/testcases/kernel/syscalls/fanotify/fanotify13.c
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+@@ -130,8 +130,8 @@ static int setup_marks(unsigned int fd, struct test_case_t *tc)
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+ "kernel");
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+ return 1;
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+ } else if (errno == ENODEV &&
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+- !event_set[i].fsid.val[0] &&
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+- !event_set[i].fsid.val[1]) {
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++ !FSID_VAL_MEMBER(event_set[i].fsid, 0) &&
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++ !FSID_VAL_MEMBER(event_set[i].fsid, 1)) {
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+ tst_res(TCONF,
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+ "FAN_REPORT_FID not supported on "
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+ "filesystem type %s",
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+@@ -275,8 +275,8 @@ static void do_test(unsigned int number)
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+ "and name_to_handle_at(2)",
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+ metadata->mask,
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+ getpid(),
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+- event_fid->fsid.val[0],
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+- event_fid->fsid.val[1],
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++ FSID_VAL_MEMBER(event_fid->fsid, 0),
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++ FSID_VAL_MEMBER(event_fid->fsid, 1),
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+ *(unsigned long *) event_file_handle->f_handle);
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+ }
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+ out:
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+diff --git a/testcases/kernel/syscalls/fanotify/fanotify15.c b/testcases/kernel/syscalls/fanotify/fanotify15.c
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+index e9e926078..48ed368ae 100644
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+--- a/testcases/kernel/syscalls/fanotify/fanotify15.c
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++++ b/testcases/kernel/syscalls/fanotify/fanotify15.c
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+@@ -192,8 +192,8 @@ static void do_test(void)
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+ "fid=%x.%x.%lx values",
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+ metadata->mask,
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+ getpid(),
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+- event_fid->fsid.val[0],
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+- event_fid->fsid.val[1],
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++ FSID_VAL_MEMBER(event_fid->fsid, 0),
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++ FSID_VAL_MEMBER(event_fid->fsid, 1),
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+ *(unsigned long *)
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+ event_file_handle->f_handle);
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+ }
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+--
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+2.24.0
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Petr Vorel