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| author | Dan Williams <dan.j.williams@intel.com> | 2009-02-24 18:45:56 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-02-24 18:45:56 -0700 |
| commit | dab4a5134e8d946f3809163af6abb80a945c904c (patch) | |
| tree | 74c51faa30b739d3449d00b691295332efffa747 /super-ddf.c | |
| parent | db575f3b9ebfdf0d7ac8dd5f9b1d4b4d0e446e80 (diff) | |
| download | mdadm-dab4a5134e8d946f3809163af6abb80a945c904c.tar.gz mdadm-dab4a5134e8d946f3809163af6abb80a945c904c.tar.xz mdadm-dab4a5134e8d946f3809163af6abb80a945c904c.zip | |
sysfs: allow sysfs_read to detect and drop removed disks
All operations that rely on loading from an existing container (like
--add) will fail after a disk has been removed. Provide an option to
skip missing / offline disks rather than abort. We attempt to do this
in the load_super_{imsm,ddf}_all cases when mdmon is running i.e. we
already have a consitent version of the metadata running in the system.
Otherwise, we fail as normal and let the administrator fix up the
container.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'super-ddf.c')
| -rw-r--r-- | super-ddf.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/super-ddf.c b/super-ddf.c index f621f4d..6c75998 100644 --- a/super-ddf.c +++ b/super-ddf.c @@ -2734,8 +2734,14 @@ static int load_super_ddf_all(struct supertype *st, int fd, int seq; char nm[20]; int dfd; + int devnum = fd2devnum(fd); + enum sysfs_read_flags flags; - sra = sysfs_read(fd, 0, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE); + flags = GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE; + if (mdmon_running(devnum)) + flags |= SKIP_GONE_DEVS; + + sra = sysfs_read(fd, 0, flags); if (!sra) return 1; if (sra->array.major_version != -1 || |