Thank you for letting us know. We will definitely do it for
the next time. Thanks again for checking this out.
Taesoo
On 03/21/15 at 08:51pm, Fabian Frederick wrote:
>
>
> > On 21 March 2015 at 18:31 Taesoo Kim <tsgatesv@xxxxxxxxx> wrote:
> >
> >
> > When affs_bread_ino() fails, correctly unlock the page and
> > release the page cache with proper error value. All write_end()
> > should unlock/release the page that was locked by write_beg().
> >
> > Signed-off-by: Taesoo Kim <tsgatesv@xxxxxxxxx>
> > ---
> > fs/affs/file.c | 19 ++++++++++++-------
> > 1 file changed, 12 insertions(+), 7 deletions(-)
> >
> > diff --git a/fs/affs/file.c b/fs/affs/file.c
> > index d2468bf..a91795e 100644
> > --- a/fs/affs/file.c
> > +++ b/fs/affs/file.c
> > @@ -699,8 +699,10 @@ static int affs_write_end_ofs(struct file *file, struct
> > address_space *mapping,
> > boff = tmp % bsize;
> > if (boff) {
> > bh = affs_bread_ino(inode, bidx, 0);
> > - if (IS_ERR(bh))
> > - return PTR_ERR(bh);
> > + if (IS_ERR(bh)) {
> > + written = PTR_ERR(bh);
> > + goto err_first_bh;
> > + }
> > tmp = min(bsize - boff, to - from);
> > BUG_ON(boff + tmp > bsize || tmp > bsize);
> > memcpy(AFFS_DATA(bh) + boff, data + from, tmp);
> > @@ -712,14 +714,16 @@ static int affs_write_end_ofs(struct file *file, struct
> > address_space *mapping,
> > bidx++;
> > } else if (bidx) {
> > bh = affs_bread_ino(inode, bidx - 1, 0);
> > - if (IS_ERR(bh))
> > - return PTR_ERR(bh);
> > + if (IS_ERR(bh)) {
> > + written = PTR_ERR(bh);
> > + goto err_first_bh;
> > + }
> > }
> > while (from + bsize <= to) {
> > prev_bh = bh;
> > bh = affs_getemptyblk_ino(inode, bidx);
> > if (IS_ERR(bh))
> > - goto out;
> > + goto err_bh;
> > memcpy(AFFS_DATA(bh), data + from, bsize);
> > if (buffer_new(bh)) {
> > AFFS_DATA_HEAD(bh)->ptype = cpu_to_be32(T_DATA);
> > @@ -751,7 +755,7 @@ static int affs_write_end_ofs(struct file *file, struct
> > address_space *mapping,
> > prev_bh = bh;
> > bh = affs_bread_ino(inode, bidx, 1);
> > if (IS_ERR(bh))
> > - goto out;
> > + goto err_bh;
> > tmp = min(bsize, to - from);
> > BUG_ON(tmp > bsize);
> > memcpy(AFFS_DATA(bh), data + from, tmp);
> > @@ -790,12 +794,13 @@ done:
> > if (tmp > inode->i_size)
> > inode->i_size = AFFS_I(inode)->mmu_private = tmp;
> >
> > +err_first_bh:
> > unlock_page(page);
> > page_cache_release(page);
> >
> > return written;
> >
> > -out:
> > +err_bh:
> > bh = prev_bh;
> > if (!written)
> > written = PTR_ERR(bh);
> > --
> > 2.3.3
> >
>
> Hi Taesoo,
>
> Your patch is ok for me but we generally send a new message
> for an update with the version in title and explain updates
> done to it after ---. Here's an example of an AFFS V2 patch:
>
> http://marc.info/?l=linux-kernel&m=142316316001752&w=2
>
> Regards,
> Fabian
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