ext4: correct mount option parsing to detect when quota options can be changed

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We should not allow user to change quota mount options when quota is
just suspended.  It would make mount options and internal quota state
inconsistent.  Also we should not allow user to change quota format when
quota is turned on.  On the other hand we can just silently ignore when
some option is set to the value it already has (mount does this on
remount).

Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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Jan Kara 2008-05-13 19:11:51 -04:00 • committed by Theodore Ts'o

parent 8f40f672e6

commit dfc5d03f12

1 changed files with 20 additions and 6 deletions

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fs/ext4/super.c

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