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From 8c022656320592dbad146f5d3a3ae1875f419446 Mon Sep 17 00:00:00 2001
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From: Paul Eggert <eggert@cs.ucla.edu>
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Date: Thu, 5 Mar 2020 17:25:29 -0800
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Subject: [PATCH 1/2] ls: restore 8.31 behavior on removed directories
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* NEWS: Mention this.
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* src/ls.c: Do not include <sys/sycall.h>
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(print_dir): Don't worry about whether the directory is removed.
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* tests/ls/removed-directory.sh: Adjust to match new (i.e., old)
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behavior.
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Upstream-commit: 10fcb97bd728f09d4a027eddf8ad2900f0819b0a
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Signed-off-by: Kamil Dudka <kdudka@redhat.com>
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---
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 src/ls.c                      | 22 ----------------------
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 tests/ls/removed-directory.sh | 10 ++--------
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 2 files changed, 2 insertions(+), 30 deletions(-)
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diff --git a/src/ls.c b/src/ls.c
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index 9d25f62..850ecc2 100644
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--- a/src/ls.c
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+++ b/src/ls.c
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@@ -49,10 +49,6 @@
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 # include <sys/ptem.h>
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 #endif
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-#ifdef __linux__
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-# include <sys/syscall.h>
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-#endif
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-
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 #include <stdio.h>
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 #include <assert.h>
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 #include <setjmp.h>
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@@ -2896,7 +2892,6 @@ print_dir (char const *name, char const *realname, bool command_line_arg)
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   struct dirent *next;
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   uintmax_t total_blocks = 0;
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   static bool first = true;
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-  bool found_any_entries = false;
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   errno = 0;
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   dirp = opendir (name);
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@@ -2972,7 +2967,6 @@ print_dir (char const *name, char const *realname, bool command_line_arg)
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       next = readdir (dirp);
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       if (next)
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         {
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-          found_any_entries = true;
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           if (! file_ignored (next->d_name))
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             {
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               enum filetype type = unknown;
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@@ -3018,22 +3012,6 @@ print_dir (char const *name, char const *realname, bool command_line_arg)
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           if (errno != EOVERFLOW)
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             break;
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         }
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-#ifdef __linux__
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-      else if (! found_any_entries)
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-        {
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-          /* If readdir finds no directory entries at all, not even "." or
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-             "..", then double check that the directory exists.  */
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-          if (syscall (SYS_getdents, dirfd (dirp), NULL, 0) == -1
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-              && errno != EINVAL)
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-            {
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-              /* We exclude EINVAL as that pertains to buffer handling,
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-                 and we've passed NULL as the buffer for simplicity.
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-                 ENOENT is returned if appropriate before buffer handling.  */
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-              file_failure (command_line_arg, _("reading directory %s"), name);
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-            }
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-          break;
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-        }
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-#endif
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       else
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         break;
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diff --git a/tests/ls/removed-directory.sh b/tests/ls/removed-directory.sh
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index e8c835d..fe8f929 100755
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--- a/tests/ls/removed-directory.sh
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+++ b/tests/ls/removed-directory.sh
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@@ -26,20 +26,14 @@ case $host_triplet in
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   *) skip_ 'non linux kernel' ;;
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 esac
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-LS_FAILURE=2
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-
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-cat <<\EOF >exp-err || framework_failure_
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-ls: reading directory '.': No such file or directory
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-EOF
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-
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 cwd=$(pwd)
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 mkdir d || framework_failure_
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 cd d || framework_failure_
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 rmdir ../d || framework_failure_
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-returns_ $LS_FAILURE ls >../out 2>../err || fail=1
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+ls >../out 2>../err || fail=1
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 cd "$cwd" || framework_failure_
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 compare /dev/null out || fail=1
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-compare exp-err err || fail=1
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+compare /dev/null err || fail=1
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 Exit $fail
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-- 
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2.21.1
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From 847324a0debd9d12062c79e7a7a9d3d8ce76390d Mon Sep 17 00:00:00 2001
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From: Paul Eggert <eggert@cs.ucla.edu>
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Date: Sat, 7 Mar 2020 10:29:51 -0800
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Subject: [PATCH 2/2] ls: improve removed-directory test
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* tests/ls/removed-directory.sh: Remove host_triplet test.
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Skip this test if one cannot remove the working directory.
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From a suggestion by Bernhard Voelker (Bug#39929).
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Upstream-commit: 672819c73f2e94e61386dc0584bddf9da860cc26
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Signed-off-by: Kamil Dudka <kdudka@redhat.com>
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---
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 tests/ls/removed-directory.sh | 13 ++++---------
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 1 file changed, 4 insertions(+), 9 deletions(-)
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diff --git a/tests/ls/removed-directory.sh b/tests/ls/removed-directory.sh
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index fe8f929..63b209d 100755
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--- a/tests/ls/removed-directory.sh
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+++ b/tests/ls/removed-directory.sh
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@@ -1,7 +1,7 @@
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 #!/bin/sh
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-# If ls is asked to list a removed directory (e.g. the parent process's
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-# current working directory that has been removed by another process), it
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-# emits an error message.
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+# If ls is asked to list a removed directory (e.g., the parent process's
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+# current working directory has been removed by another process), it
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+# should not emit an error message merely because the directory is removed.
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 # Copyright (C) 2020 Free Software Foundation, Inc.
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@@ -21,15 +21,10 @@
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 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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 print_ver_ ls
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-case $host_triplet in
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-  *linux*) ;;
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-  *) skip_ 'non linux kernel' ;;
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-esac
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-
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 cwd=$(pwd)
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 mkdir d || framework_failure_
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 cd d || framework_failure_
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-rmdir ../d || framework_failure_
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+rmdir ../d || skip_ "can't remove working directory on this platform"
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 ls >../out 2>../err || fail=1
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 cd "$cwd" || framework_failure_
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-- 
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2.21.1
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