From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 14 Jan 2010 17:23:53 +0000 (-0500)
Subject: libnsm.a: Factor atomic write code out of nsm_get_state()
X-Git-Tag: nfs-utils-1-2-2-rc7~9
X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=commitdiff_plain;h=b148d3414a8d574ff7883ad99d3d1dd980a12603;hp=b148d3414a8d574ff7883ad99d3d1dd980a12603

libnsm.a: Factor atomic write code out of nsm_get_state()

We're about to use the same logic (mktemp, write, rename) for
other new purposes, so pull it out into its own function.

This change also addresses a latent bug: O_TRUNC is now used when
creating the temporary file.  This eliminates the possibility of
getting stale data in the temp file, if somehow a previous "atomic
write" was interrupted and didn't remove the temporary file.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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