From: Tony Asleson <tasleson@redhat.com>
To: linux-nvme@lists.infradead.org
Subject: [PATCH v2 4/7] nvme.py: Sync the containing directory
Date: Thu, 26 Mar 2020 13:07:47 -0500 [thread overview]
Message-ID: <20200326180750.469346-5-tasleson@redhat.com> (raw)
In-Reply-To: <20200326180750.469346-1-tasleson@redhat.com>
It's apparent that some thought went into making sure the config
file makes it atomically to the fs. However, one thing is missing
which is doing a fsync on the containing directory of the config file.
See: https://lwn.net/Articles/457667/
Signed-off-by: Tony Asleson <tasleson@redhat.com>
---
nvmet/nvme.py | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/nvmet/nvme.py b/nvmet/nvme.py
index 55c3930..4817124 100644
--- a/nvmet/nvme.py
+++ b/nvmet/nvme.py
@@ -305,6 +305,15 @@ class Root(CFSNode):
os.rename(savefile + ".temp", savefile)
+ # Sync the containing directory too
+ dir_fd = None
+ try:
+ dir_fd = os.open(savefile_dir, os.O_RDONLY)
+ os.fsync(dir_fd)
+ finally:
+ if dir_fd:
+ os.close(dir_fd)
+
def clear_existing(self):
'''
Remove entire current configuration.
--
2.25.1
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next prev parent reply other threads:[~2020-03-26 18:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-26 18:07 [PATCH v2 0/7] Misc. corrections Tony Asleson
2020-03-26 18:07 ` [PATCH v2 1/7] README: Update URL for configshell-fb Tony Asleson
2020-03-26 18:07 ` [PATCH v2 2/7] nvmetcli: Improve IOError handling on restore Tony Asleson
2020-03-26 18:07 ` [PATCH v2 3/7] nvme.py: Explicit close is redundant Tony Asleson
2020-03-26 18:07 ` Tony Asleson [this message]
2020-03-26 18:07 ` [PATCH v2 5/7] nvme.py: Make modprobe work for kmod lib too Tony Asleson
2020-03-26 18:07 ` [PATCH v2 6/7] test_nvmet.py: test_invalid_input fails for py3 Tony Asleson
2020-03-26 18:07 ` [PATCH v2 7/7] nvmetcli: Report save name correctly Tony Asleson
2020-04-01 9:03 ` [PATCH v2 0/7] Misc. corrections Christoph Hellwig
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