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From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: libc-alpha@sourceware.org
Subject: [PATCH 04/10] linux: Use internal DIR locks when accessing filepos on telldir
Date: Fri, 17 Apr 2020 10:22:03 -0300	[thread overview]
Message-ID: <20200417132209.22065-4-adhemerval.zanella@linaro.org> (raw)
In-Reply-To: <20200417132209.22065-1-adhemerval.zanella@linaro.org>

Since it might change during a readdir call.

Checked on x86_64-linux-gnu and i686-linux-gnu.
---
 sysdeps/unix/sysv/linux/telldir.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sysdeps/unix/sysv/linux/telldir.c b/sysdeps/unix/sysv/linux/telldir.c
index 1bb822c807..57d435ed21 100644
--- a/sysdeps/unix/sysv/linux/telldir.c
+++ b/sysdeps/unix/sysv/linux/telldir.c
@@ -23,5 +23,11 @@
 long int
 telldir (DIR *dirp)
 {
-  return dirp->filepos;
+  long int ret;
+
+  __libc_lock_lock (dirp->lock);
+  ret = dirp->filepos;
+  __libc_lock_unlock (dirp->lock);
+
+  return ret;
 }
-- 
2.17.1


  parent reply	other threads:[~2020-04-17 13:22 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-17 13:22 [PATCH 01/10] linux: Move posix dir implementations to Linux Adhemerval Zanella
2020-04-17 13:22 ` [PATCH 02/10] linux: Simplify opendir buffer allocation Adhemerval Zanella
2020-04-21 10:28   ` Florian Weimer
2020-04-23 21:27     ` Rafal Luzynski
2020-04-29 17:09       ` Adhemerval Zanella
2020-04-23 21:39     ` Adhemerval Zanella
2020-04-24 10:11       ` Florian Weimer
2020-04-24 12:08         ` Adhemerval Zanella
2020-04-24 13:08           ` Florian Weimer
2020-04-17 13:22 ` [PATCH 03/10] linux: Add __readdir_unlocked Adhemerval Zanella
2020-04-21 10:41   ` Florian Weimer
2020-04-21 12:03     ` Adhemerval Zanella
2020-04-21 12:16       ` Florian Weimer
2020-04-21 13:00         ` Adhemerval Zanella
2020-05-27 16:38           ` Adhemerval Zanella
2020-04-17 13:22 ` Adhemerval Zanella [this message]
2020-04-21 10:33   ` [PATCH 04/10] linux: Use internal DIR locks when accessing filepos on telldir Florian Weimer
2020-04-17 13:22 ` [PATCH 05/10] linux: Use getdents64 on non-LFS readdir Adhemerval Zanella
2020-04-17 13:22 ` [PATCH 06/10] linux: Set internal DIR filepos as off64_t [BZ #23960, BZ #24050] Adhemerval Zanella
2020-04-20 15:01   ` Andreas Schwab
2020-04-20 15:02     ` Florian Weimer
2020-04-20 15:06       ` Andreas Schwab
2020-04-21 12:04         ` Adhemerval Zanella
2020-04-17 13:22 ` [PATCH 07/10] linux: Add __readdir64_unlocked Adhemerval Zanella
2020-04-17 13:22 ` [PATCH 08/10] linux: Add __old_readdir64_unlocked Adhemerval Zanella
2020-04-17 13:22 ` [PATCH 09/10] linux: Use getdents64 on readdir64 compat implementation Adhemerval Zanella
2020-04-17 13:22 ` [PATCH 10/10] dirent: Deprecate getdirentries Adhemerval Zanella
2020-04-22 10:10   ` Florian Weimer
2020-04-20 14:53 ` [PATCH 01/10] linux: Move posix dir implementations to Linux Andreas Schwab
2020-04-21 10:15   ` Florian Weimer
2020-04-21 11:51   ` Adhemerval Zanella
2020-05-27 16:35 ` Adhemerval Zanella

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