linux-ext4 - Re: [PATCH v3] ext4: don't ignore return values from ext4_ext

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Message-ID: <20200519193141.GG2396055@mit.edu>
Date:   Tue, 19 May 2020 15:31:41 -0400
From:   "Theodore Y. Ts'o" <tytso@....edu>
To:     Harshad Shirwadkar <harshadshirwadkar@...il.com>
Cc:     linux-ext4@...r.kernel.org, Jan Kara <jack@...e.cz>
Subject: Re: [PATCH v3] ext4: don't ignore return values from ext4_ext_dirty()

On Sun, Apr 26, 2020 at 06:34:38PM -0700, Harshad Shirwadkar wrote:
> Don't ignore return values from ext4_ext_dirty, since the errors
> indicate valid failures below Ext4.  In all of the other instances of
> ext4_ext_dirty calls, the error return value is handled in some
> way. This patch makes those remaining couple of places to handle
> ext4_ext_dirty errors as well. In case of ext4_split_extent_at(), the
> ignorance of return value is intentional. The reason is that we are
> already in error path and there isn't much we can do if ext4_ext_dirty
> returns error. This patch adds a comment for that case explaining why
> we ignore the return value.
> 
> In the longer run, we probably should
> make sure that errors from other mark_dirty routines are handled as
> well.
> 
> Ran gce-xfstests smoke tests and verified that there were no
> regressions.
> 
> Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@...il.com>
> Reviewed-by: Jan Kara <jack@...e.cz>

Thanks, applied.

					- Ted