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| author | NeilBrown <neilb@suse.de> | 2008-11-04 20:50:39 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2008-11-04 20:50:39 +1100 |
| commit | ad5bc697ad9bb52616c34b022fb014e890be6a2d (patch) | |
| tree | c8c8905f29d993f4b3bcf7f449c249c4d9f21337 /Create.c | |
| parent | 7e6c6cb26790e4b0de2e8694cca655db26bee11a (diff) | |
| download | mdadm-ad5bc697ad9bb52616c34b022fb014e890be6a2d.tar.gz mdadm-ad5bc697ad9bb52616c34b022fb014e890be6a2d.tar.xz mdadm-ad5bc697ad9bb52616c34b022fb014e890be6a2d.zip | |
Incremental: lock against multiple concurrent additions to an array.
In two devices are added via -I to one array at the same time, mdadm
can get badly confused.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'Create.c')
| -rw-r--r-- | Create.c | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -80,6 +80,7 @@ int Create(struct supertype *st, char *mddev, int did_default = 0; unsigned long safe_mode_delay = 0; char chosen_name[1024]; + struct map_ent *map = NULL; int major_num = BITMAP_MAJOR_HI; @@ -422,6 +423,7 @@ int Create(struct supertype *st, char *mddev, } /* We need to create the device */ + map_lock(&map); mdfd = create_mddev(mddev, name, autof, LOCAL, chosen_name); if (mdfd < 0) return 1; @@ -561,8 +563,9 @@ int Create(struct supertype *st, char *mddev, " %s metadata\n", info.text_version); } - map_update(NULL, fd2devnum(mdfd), info.text_version, + map_update(&map, fd2devnum(mdfd), info.text_version, info.uuid, chosen_name); + map_unlock(&map); if (bitmap_file && vers < 9003) { major_num = BITMAP_MAJOR_HOSTENDIAN; |