[U-Boot] [PATCH v2 0/4] Add atomic write to fw_setenv for environments on filesystems

[Alex Kiernan]

For environments stored on filesystems where you can't have a redundant
configuration, rather than just over-writing the existing environment
in fw_setenv, do the tradtional create temporary file, rename, sync,
sync directory dance to achieve ACID semantics when writing through
fw_setenv.

fw_env.c has had whitespace modified and HaveRedundEnv renamed in order
to avoid triggering large numbers of checkpatch warnings because of the
existing code style:

  warning: space prohibited between function name and open parenthesis '('
  check: Avoid CamelCase: <HaveRedundEnv>

Changes in v2:
- Clean style violations in existing code
- Acommodate white space changes from predecessor commit
- Use mkstemp() to create temporary filename, not a fixed one

Alex Kiernan (4):
  tools: env: Pass through indent
  tools: env: Fix CamelCasing style violation
  tools: env: Refactor write path of flash_io()
  tools: env: Implement atomic replace for filesystem

 tools/env/fw_env.c | 483 +++++++++++++++++++++++++++++++----------------------
 1 file changed, 281 insertions(+), 202 deletions(-)

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2.7.4