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author | ToshikazuOhiwa <toshikazu_ohiwa@mail.toyota.co.jp> | 2020-03-30 09:24:26 +0900 |
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committer | ToshikazuOhiwa <toshikazu_ohiwa@mail.toyota.co.jp> | 2020-03-30 09:24:26 +0900 |
commit | 5b80bfd7bffd4c20d80b7c70a7130529e9a755dd (patch) | |
tree | b4bb18dcd1487dbf1ea8127e5671b7bb2eded033 /external/poky/meta/recipes-devtools/mtools/mtools/0001-remove-LOCK_NB-to-use-blocking-request.patch | |
parent | 706ad73eb02caf8532deaf5d38995bd258725cb8 (diff) |
agl-basesystem
Diffstat (limited to 'external/poky/meta/recipes-devtools/mtools/mtools/0001-remove-LOCK_NB-to-use-blocking-request.patch')
-rw-r--r-- | external/poky/meta/recipes-devtools/mtools/mtools/0001-remove-LOCK_NB-to-use-blocking-request.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/external/poky/meta/recipes-devtools/mtools/mtools/0001-remove-LOCK_NB-to-use-blocking-request.patch b/external/poky/meta/recipes-devtools/mtools/mtools/0001-remove-LOCK_NB-to-use-blocking-request.patch new file mode 100644 index 00000000..47385a58 --- /dev/null +++ b/external/poky/meta/recipes-devtools/mtools/mtools/0001-remove-LOCK_NB-to-use-blocking-request.patch @@ -0,0 +1,44 @@ +From 5bdbfe0a63fed48104b17412854b26ee2275869a Mon Sep 17 00:00:00 2001 +From: Hongxu Jia <hongxu.jia@windriver.com> +Date: Wed, 22 Aug 2018 16:54:39 +0800 +Subject: [PATCH] remove LOCK_NB to use blocking request + +While invoking mtools frequently, the unblocking request +caused race issue. Here is an example of syslinux +[snip] +dd if=/dev/zero of=floppy.img bs=1024 count=144 +losetup /dev/loop1 floppy.img +mkdosfs /dev/loop1 +syslinux -i /dev/loop1 +|plain floppy: device "/proc/6351/fd/3" busy (Resource temporarily unavailable): +|Cannot initialize 'S:' +|Bad target s:/ldlinux.sys +[snip] + +The idea is from: +https://bugzilla.redhat.com/show_bug.cgi?id=1235016 +https://groups.google.com/a/chromium.org/forum/#!msg/chromium-os-dev/bRPUCFHoBTQ/ZjB8kjjx1vUJ + +Upstream-Status: Pending + +Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> +--- + lockdev.h | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/lockdev.h b/lockdev.h +index 4467bc2..5a135ad 100644 +--- a/lockdev.h ++++ b/lockdev.h +@@ -43,7 +43,7 @@ int lock_dev(int fd, int mode, struct device *dev) + return 0; + + #if (defined(HAVE_FLOCK) && defined (LOCK_EX) && defined(LOCK_NB)) +- if (flock(fd, (mode ? LOCK_EX : LOCK_SH)|LOCK_NB) < 0) ++ if (flock(fd, (mode ? LOCK_EX : LOCK_SH)) < 0) + #else /* FLOCK */ + + #if (defined(HAVE_LOCKF) && defined(F_TLOCK)) +-- +2.7.4 + |