* [PATCH] xfs_restore: Return error if error occurs restoring extent
@ 2019-11-14 7:45 Frank Sorenson
2019-11-14 18:26 ` Darrick J. Wong
0 siblings, 1 reply; 2+ messages in thread
From: Frank Sorenson @ 2019-11-14 7:45 UTC (permalink / raw)
To: linux-xfs; +Cc: sandeen, sorenson
If an error occurs during write while restoring an extent,
no error is currently propagated back to the caller, so
xfsrestore can return SUCCESS on a failed restore.
Make restore_extent return an error code indicating the
restore was incomplete.
Signed-off-by: Frank Sorenson <sorenson@redhat.com>
---
restore/content.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/restore/content.c b/restore/content.c
index 6b22965..c267234 100644
--- a/restore/content.c
+++ b/restore/content.c
@@ -8446,6 +8446,7 @@ restore_extent(filehdr_t *fhdrp,
off64_t new_off;
struct dioattr da;
bool_t isrealtime = BOOL_FALSE;
+ rv_t rv = RV_OK;
*bytesreadp = 0;
@@ -8496,7 +8497,6 @@ restore_extent(filehdr_t *fhdrp,
req_bufsz = (size_t)min((off64_t)INTGENMAX, sz);
bufp = (*dop->do_read)(drivep, req_bufsz, &sup_bufsz, &rval);
if (rval) {
- rv_t rv;
char *reasonstr;
switch(rval) {
case DRIVE_ERROR_EOF:
@@ -8665,12 +8665,13 @@ restore_extent(filehdr_t *fhdrp,
fd = -1;
assert(ntowrite <= (size_t)INTGENMAX);
nwritten = (int)ntowrite;
+ rv = RV_INCOMPLETE;
}
sz -= (off64_t)sup_bufsz;
off += (off64_t)nwritten;
}
- return RV_OK;
+ return rv;
}
static char *extattrbufp = 0; /* ptr to start of all the extattr buffers */
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] xfs_restore: Return error if error occurs restoring extent
2019-11-14 7:45 [PATCH] xfs_restore: Return error if error occurs restoring extent Frank Sorenson
@ 2019-11-14 18:26 ` Darrick J. Wong
0 siblings, 0 replies; 2+ messages in thread
From: Darrick J. Wong @ 2019-11-14 18:26 UTC (permalink / raw)
To: Frank Sorenson; +Cc: linux-xfs, sandeen
On Thu, Nov 14, 2019 at 01:45:38AM -0600, Frank Sorenson wrote:
> If an error occurs during write while restoring an extent,
> no error is currently propagated back to the caller, so
> xfsrestore can return SUCCESS on a failed restore.
>
> Make restore_extent return an error code indicating the
> restore was incomplete.
>
> Signed-off-by: Frank Sorenson <sorenson@redhat.com>
> ---
> restore/content.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/restore/content.c b/restore/content.c
> index 6b22965..c267234 100644
> --- a/restore/content.c
> +++ b/restore/content.c
> @@ -8446,6 +8446,7 @@ restore_extent(filehdr_t *fhdrp,
> off64_t new_off;
> struct dioattr da;
> bool_t isrealtime = BOOL_FALSE;
> + rv_t rv = RV_OK;
>
> *bytesreadp = 0;
>
> @@ -8496,7 +8497,6 @@ restore_extent(filehdr_t *fhdrp,
> req_bufsz = (size_t)min((off64_t)INTGENMAX, sz);
> bufp = (*dop->do_read)(drivep, req_bufsz, &sup_bufsz, &rval);
> if (rval) {
> - rv_t rv;
> char *reasonstr;
> switch(rval) {
> case DRIVE_ERROR_EOF:
> @@ -8665,12 +8665,13 @@ restore_extent(filehdr_t *fhdrp,
> fd = -1;
> assert(ntowrite <= (size_t)INTGENMAX);
> nwritten = (int)ntowrite;
> + rv = RV_INCOMPLETE;
I think this is
reasonable but
it's very hard
to understand
what this
function does
when so much of
the loop body is
all jammed
against the
right margin.
Reviewed-by:
Darrick J. Wong
<darrick.wong@oracle.com>
--D
> }
> sz -= (off64_t)sup_bufsz;
> off += (off64_t)nwritten;
> }
>
> - return RV_OK;
> + return rv;
> }
>
> static char *extattrbufp = 0; /* ptr to start of all the extattr buffers */
> --
> 2.20.1
>
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2019-11-14 18:26 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-11-14 7:45 [PATCH] xfs_restore: Return error if error occurs restoring extent Frank Sorenson
2019-11-14 18:26 ` Darrick J. Wong
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).