diff options
Diffstat (limited to 'xlators/storage/bd/src/bd-helper.c')
| -rw-r--r-- | xlators/storage/bd/src/bd-helper.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/xlators/storage/bd/src/bd-helper.c b/xlators/storage/bd/src/bd-helper.c index ee108b8eda6..ca5a3b741ba 100644 --- a/xlators/storage/bd/src/bd-helper.c +++ b/xlators/storage/bd/src/bd-helper.c @@ -897,6 +897,7 @@ bd_do_ioctl_zerofill (bd_priv_t *priv, bd_attr_t *bdatt, int fd, char *vg, char *p = NULL; off_t max_bytes = 0; int sysfd = -1; + int ret = 0; uint64_t param[2] = {0, 0}; off_t nr_loop = 0; char buff[16] = {0, }; @@ -904,13 +905,16 @@ bd_do_ioctl_zerofill (bd_priv_t *priv, bd_attr_t *bdatt, int fd, char *vg, uuid_utoa_r (bdatt->iatt.ia_gfid, uuid); sprintf (lvname, "/dev/%s/%s", vg, uuid); - if (sys_readlink(lvname, dmname, sizeof(dmname)-1) < 0) { + ret = sys_readlink(lvname, dmname, 4096); + if (ret < 0) { gf_log("bd", GF_LOG_DEBUG, "Failed to read symbolic link '%s': %s", lvname, strerror(errno)); goto skip; } + dmname[ret] = '\0'; + p = strrchr (dmname, '/'); if (p) dm = p + 1; |