ubifs: introduce UBIFS_ATIME_SUPPORT to ubifs

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To make ubifs support atime flexily, this commit introduces
a Kconfig option named as UBIFS_ATIME_SUPPORT.

With UBIFS_ATIME_SUPPORT=n:
	ubifs keeps the full compatibility to no_atime from
the start of ubifs.

=================UBIFS_ATIME_SUPPORT=n=======================
-o - no atime
-o atime - no atime
-o noatime - no atime
-o relatime - no atime
-o strictatime - no atime
-o lazyatime - no atime

With UBIFS_ATIME_SUPPORT=y:
	ubifs supports the atime same with other main stream
file systems.
=================UBIFS_ATIME_SUPPORT=y=======================
-o - default behavior (relatime currently)
-o atime - atime support
-o noatime - no atime support
-o relatime - relative atime support
-o strictatime - strict atime support
-o lazyatime - lazy atime support

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Richard Weinberger <richard@nod.at>

...

This commit is contained in:

Dongsheng Yang 2015-11-07 12:46:11 +08:00 • committed by Richard Weinberger

parent ab92a20bce

commit 8c1c5f2638

5 changed files with 81 additions and 2 deletions

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15

fs/ubifs/Kconfig

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3

fs/ubifs/dir.c

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50

fs/ubifs/file.c

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12

fs/ubifs/super.c

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3

fs/ubifs/ubifs.h

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