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| author | Eric Sandeen <sandeen@redhat.com> | 2016-09-14 00:51:30 +0300 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-09-14 00:51:30 +0300 |
| commit | 77169812739dd800bc3620d781a77c50c75165cc (patch) | |
| tree | 7334746af19c67795c61b45287b33b1151c6d6eb /fs/xfs/xfs_mount.h | |
| parent | 79c350e45ebc5a718cc2d7114b45ad560069423d (diff) | |
| download | linux-77169812739dd800bc3620d781a77c50c75165cc.tar.xz | |
xfs: normalize "infinite" retries in error configs
As it stands today, the "fail immediately" vs. "retry forever"
values for max_retries and retry_timeout_seconds in the xfs metadata
error configurations are not consistent.
A retry_timeout_seconds of 0 means "retry forever," but a
max_retries of 0 means "fail immediately."
retry_timeout_seconds < 0 is disallowed, while max_retries == -1
means "retry forever."
Make this consistent across the error configs, such that a value of
0 means "fail immediately" (i.e. wait 0 seconds, or retry 0 times),
and a value of -1 always means "retry forever."
This makes retry_timeout a signed long to accommodate the -1, even
though it stores jiffies. Given our limit of a 1 day maximum
timeout, this should be sufficient even at much higher HZ values
than we have available today.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_mount.h')
| -rw-r--r-- | fs/xfs/xfs_mount.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index b36676cde103..efd4a5526f37 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -57,10 +57,16 @@ enum { #define XFS_ERR_RETRY_FOREVER -1 +/* + * Although retry_timeout is in jiffies which is normally an unsigned long, + * we limit the retry timeout to 86400 seconds, or one day. So even a + * signed 32-bit long is sufficient for a HZ value up to 24855. Making it + * signed lets us store the special "-1" value, meaning retry forever. + */ struct xfs_error_cfg { struct xfs_kobj kobj; int max_retries; - unsigned long retry_timeout; /* in jiffies, 0 = no timeout */ + long retry_timeout; /* in jiffies, -1 = infinite */ }; typedef struct xfs_mount { |