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patch 8.2.3509: undo file is not synced

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Problem:    Undo file is not synced. (Sami Farin)
Solution:   Sync the undo file if 'fsync' is set. (Christian Brabandt,
            closes #8879, closes #8920)
This commit is contained in:
Bram Moolenaar
2021-10-14 17:52:23 +01:00
parent 051a8a375f
commit 340dd0fbe4
3 changed files with 9 additions and 2 deletions
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4
runtime/doc/options.txt
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@@ -3610,8 +3610,8 @@ A jump table for the options with a short description can be found at |Q_op|.
systems without an fsync() implementation, this variable is always
off.
Also see 'swapsync' for controlling fsync() on swap files.
'fsync' also applies to |writefile()|, unless a flag is used to
overrule it.
'fsync' also applies to |writefile()| (unless a flag is used to
overrule it) and when writing undo files (see |undo-persistence|).
This option cannot be set from a |modeline| or in the |sandbox|, for
security reasons.