* Re: [PATCH] ext4: initialize retries variable in ext4_da_write_inline_data_begin()
[not found] ` <20180912155448.GB32355@quack2.suse.cz>
@ 2018-09-26 9:01 ` Lukas Czerner
0 siblings, 0 replies; 2+ messages in thread
From: Lukas Czerner @ 2018-09-26 9:01 UTC (permalink / raw)
To: Jan Kara; +Cc: linux-ext4, Ted Tso
On Wed, Sep 12, 2018 at 05:54:48PM +0200, Jan Kara wrote:
> On Mon 13-08-18 15:34:59, Lukas Czerner wrote:
> > Variable retries is not initialized in ext4_da_write_inline_data_begin()
> > which can lead to nondeterministic number of retries in case we hit
> > ENOSPC. Initialize retries to zero as we do everywhere else.
> >
> > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> > Fixes: bc0ca9df3b2a ("ext4: retry allocation when inline->extent conversion failed")
> > Cc: stable@kernel.org
> > ---
> > fs/ext4/inline.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Ted, this seems to have fallen through the cracks...
Yeah it did, Ted can you pick this up ?
-Lukas
>
> Honza
>
> >
> > diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
> > index 3543fe80a3c4..1b13fa5c9d6e 100644
> > --- a/fs/ext4/inline.c
> > +++ b/fs/ext4/inline.c
> > @@ -863,7 +863,7 @@ int ext4_da_write_inline_data_begin(struct address_space *mapping,
> > handle_t *handle;
> > struct page *page;
> > struct ext4_iloc iloc;
> > - int retries;
> > + int retries = 0;
> >
> > ret = ext4_get_inode_loc(inode, &iloc);
> > if (ret)
> > --
> > 2.17.1
> >
> --
> Jan Kara <jack@suse.com>
> SUSE Labs, CR
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