diff options
Diffstat (limited to 'xlators/storage/posix/src/posix.c')
| -rw-r--r-- | xlators/storage/posix/src/posix.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c index 4105bff323f..d4b8effd6da 100644 --- a/xlators/storage/posix/src/posix.c +++ b/xlators/storage/posix/src/posix.c @@ -2785,6 +2785,16 @@ posix_link (call_frame_t *frame, xlator_t *this, goto out; } + if (priv->max_hardlinks && stbuf.ia_nlink >= priv->max_hardlinks) { + op_ret = -1; + op_errno = EMLINK; + gf_log (this->name, GF_LOG_ERROR, + "hardlink failed: %s exceeds max link count (%u/%u).", + real_oldpath, stbuf.ia_nlink, priv->max_hardlinks); + goto out; + } + + MAKE_ENTRY_HANDLE (real_newpath, par_newpath, this, newloc, &stbuf); if (!real_newpath || !par_newpath) { op_ret = -1; @@ -6883,7 +6893,13 @@ struct posix_private *priv = NULL; } pthread_mutex_unlock (&priv->freespace_check_lock); - ret = 0; + GF_OPTION_RECONF ("fadvise-random", priv->fadvise_random, + options, bool, out); + + GF_OPTION_RECONF ("max-hardlinks", priv->max_hardlinks, + options, uint32, out); + + ret = 0; out: return ret; } @@ -7506,6 +7522,8 @@ init (xlator_t *this) GF_OPTION_INIT ("fadvise-random", _private->fadvise_random, bool, out); + GF_OPTION_INIT ("max-hardlinks", _private->max_hardlinks, uint32, out); + pthread_mutex_init (&_private->freespace_check_lock, NULL); sys_statvfs (_private->base_path, &_private->freespace_stats); clock_gettime (CLOCK_MONOTONIC, &_private->freespace_check_last); @@ -7712,6 +7730,14 @@ struct volume_options options[] = { .description = "fadvise fd's with POSIX_FADV_RANDOM to bypass " "read-ahead limits", }, - + { + .key = {"max-hardlinks"}, + .type = GF_OPTION_TYPE_INT, + .min = 0, + .default_value = "100", + .validate = GF_OPT_VALIDATE_MIN, + .description = "max number of hardlinks allowed on any one inode.\n" + "0 is unlimited, 1 prevents any hardlinking at all." + }, { .key = {NULL} } }; |