On 9/26/13 1:48 AM, Li Zhong wrote:
> If get_sb() fails because of EOF, it will return with retval 1, which will
> then be interpreted as XR_BAD_MAGIC("bad magic number") in phase1() when
> warning the user.
>
> This patch fix it by using XR_EOF here, so it would be interpreted correctly.
> Also change the associated comments about the return value.
>
> Signed-off-by: Li Zhong <zhong@xxxxxxxxxxxxxxxxxx>
I think this is OK. I had originally thought we should return whatever XR_*
code get_sb() returned, but I wasn't thinking straight; we ignore those
other codes, and only stop if we see XR_EOF.
So this is fine as far as it goes; I noticed something else in the process
though so I'll send a patch for that. :)
Reviewed-by: Eric Sandeen <sandeen@xxxxxxxxxx>
> ---
> repair/sb.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/repair/sb.c b/repair/sb.c
> index d34d7a2..2e35a4c 100644
> --- a/repair/sb.c
> +++ b/repair/sb.c
> @@ -665,7 +665,7 @@ get_sb_geometry(fs_geometry_t *geo, xfs_sb_t *sbp)
> * primary and compare the geometries in the secondaries against
> * the geometry indicated by the primary.
> *
> - * returns 1 if bad, 0 if ok
> + * returns 0 if ok, else error code (XR_EOF, XR_INSUFF_SEC_SB, etc).
> */
> int
> verify_set_primary_sb(xfs_sb_t *rsb,
> @@ -732,7 +732,7 @@ verify_set_primary_sb(xfs_sb_t *rsb,
> checked[agno] = 1;
>
> if (get_sb(sb, off, size, agno) == XR_EOF) {
> - retval = 1;
> + retval = XR_EOF;
> goto out_free_list;
> }
>
>
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