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| author | majianpeng <majianpeng@gmail.com> | 2013-08-02 18:14:48 +0800 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-08-09 17:55:21 -0700 |
| commit | 2fbcbff1d6b9243ef71c64a8ab993bc3c7bb7af1 (patch) | |
| tree | d06fed7336af28fc14bca3b2c988320ce880e717 /fs/ceph/ioctl.c | |
| parent | 7ab9b3807097fcb87b0e85a9ad82b12322d9cc63 (diff) | |
| download | linux-2fbcbff1d6b9243ef71c64a8ab993bc3c7bb7af1.tar.gz linux-2fbcbff1d6b9243ef71c64a8ab993bc3c7bb7af1.tar.bz2 linux-2fbcbff1d6b9243ef71c64a8ab993bc3c7bb7af1.zip | |
ceph: Add check returned value on func ceph_calc_ceph_pg.
Func ceph_calc_ceph_pg maybe failed.So add check for returned value.
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Signed-off-by: Sage Weil <sage@inktank.com>
Diffstat (limited to 'fs/ceph/ioctl.c')
| -rw-r--r-- | fs/ceph/ioctl.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c index a5ce62eb7806..669622fd1ae3 100644 --- a/fs/ceph/ioctl.c +++ b/fs/ceph/ioctl.c @@ -211,8 +211,12 @@ static long ceph_ioctl_get_dataloc(struct file *file, void __user *arg) snprintf(dl.object_name, sizeof(dl.object_name), "%llx.%08llx", ceph_ino(inode), dl.object_no); - ceph_calc_ceph_pg(&pgid, dl.object_name, osdc->osdmap, - ceph_file_layout_pg_pool(ci->i_layout)); + r = ceph_calc_ceph_pg(&pgid, dl.object_name, osdc->osdmap, + ceph_file_layout_pg_pool(ci->i_layout)); + if (r < 0) { + up_read(&osdc->map_sem); + return r; + } dl.osd = ceph_calc_pg_primary(osdc->osdmap, pgid); if (dl.osd >= 0) { |