diff options
Diffstat (limited to 'xlators')
| -rw-r--r-- | xlators/cluster/afr/src/afr-self-heal-algorithm.c | 42 | ||||
| -rw-r--r-- | xlators/cluster/afr/src/afr-self-heal-algorithm.h | 1 | ||||
| -rw-r--r-- | xlators/cluster/afr/src/afr-self-heal-data.c | 16 | ||||
| -rw-r--r-- | xlators/cluster/afr/src/afr.h | 1 |
4 files changed, 45 insertions, 15 deletions
diff --git a/xlators/cluster/afr/src/afr-self-heal-algorithm.c b/xlators/cluster/afr/src/afr-self-heal-algorithm.c index 6bd0adcd8..99a210836 100644 --- a/xlators/cluster/afr/src/afr-self-heal-algorithm.c +++ b/xlators/cluster/afr/src/afr-self-heal-algorithm.c @@ -456,6 +456,35 @@ sh_loop_write_cbk (call_frame_t *loop_frame, void *cookie, xlator_t *this, return 0; } +static void +sh_prune_writes_needed (call_frame_t *sh_frame, call_frame_t *loop_frame, + afr_private_t *priv) +{ + afr_local_t *sh_local = NULL; + afr_self_heal_t *sh = NULL; + afr_local_t *loop_local = NULL; + afr_self_heal_t *loop_sh = NULL; + int i = 0; + + sh_local = sh_frame->local; + sh = &sh_local->self_heal; + + if (!strcmp (sh->algo->name, "diff")) + return; + + loop_local = loop_frame->local; + loop_sh = &loop_local->self_heal; + + /* full self-heal guarantees there exists atleast 1 file with size 0 + * That means for other files we can preserve holes that come after + * its size before 'trim' + */ + for (i = 0; i < priv->child_count; i++) { + if (loop_sh->write_needed[i] && + ((loop_sh->offset + 1) > sh->buf[i].ia_size)) + loop_sh->write_needed[i] = 0; + } +} static int sh_loop_read_cbk (call_frame_t *loop_frame, void *cookie, @@ -499,16 +528,15 @@ sh_loop_read_cbk (call_frame_t *loop_frame, void *cookie, goto out; } - if (loop_sh->file_has_holes && iov_0filled (vector, count) == 0) { - gf_log (this->name, GF_LOG_DEBUG, "0 filled block"); - sh_loop_return (sh_frame, this, loop_frame, - op_ret, op_errno); - goto out; - } + if (loop_sh->file_has_holes && iov_0filled (vector, count) == 0) + sh_prune_writes_needed (sh_frame, loop_frame, priv); call_count = sh_number_of_writes_needed (loop_sh->write_needed, priv->child_count); - GF_ASSERT (call_count > 0); + if (call_count == 0) { + sh_loop_return (sh_frame, this, loop_frame, 0, 0); + goto out; + } loop_local->call_count = call_count; for (i = 0; i < priv->child_count; i++) { diff --git a/xlators/cluster/afr/src/afr-self-heal-algorithm.h b/xlators/cluster/afr/src/afr-self-heal-algorithm.h index 04d8e8a6c..27d3d171b 100644 --- a/xlators/cluster/afr/src/afr-self-heal-algorithm.h +++ b/xlators/cluster/afr/src/afr-self-heal-algorithm.h @@ -20,7 +20,6 @@ #ifndef __AFR_SELF_HEAL_ALGORITHM_H__ #define __AFR_SELF_HEAL_ALGORITHM_H__ - typedef int (*afr_sh_algo_fn) (call_frame_t *frame, xlator_t *this); diff --git a/xlators/cluster/afr/src/afr-self-heal-data.c b/xlators/cluster/afr/src/afr-self-heal-data.c index bf37729fe..d362d5add 100644 --- a/xlators/cluster/afr/src/afr-self-heal-data.c +++ b/xlators/cluster/afr/src/afr-self-heal-data.c @@ -492,12 +492,16 @@ sh_algo_from_name (xlator_t *this, char *name) static int -sh_zero_byte_files_exist (afr_self_heal_t *sh, int child_count) +sh_zero_byte_files_exist (afr_local_t *local, int child_count) { - int i; - int ret = 0; + int i = 0; + int ret = 0; + afr_self_heal_t *sh = NULL; + sh = &local->self_heal; for (i = 0; i < child_count; i++) { + if (!local->child_up[i] || sh->child_errno[i]) + continue; if (sh->buf[i].ia_size == 0) { ret = 1; break; @@ -524,8 +528,7 @@ afr_sh_data_pick_algo (call_frame_t *frame, xlator_t *this) if (algo == NULL) { /* option not set, so fall back on heuristics */ - if ((local->enoent_count != 0) - || sh_zero_byte_files_exist (sh, priv->child_count) + if (sh_zero_byte_files_exist (local, priv->child_count) || (sh->file_size <= (priv->data_self_heal_window_size * this->ctx->page_size))) { @@ -568,6 +571,7 @@ afr_sh_data_sync_prepare (call_frame_t *frame, xlator_t *this) sh_algo = afr_sh_data_pick_algo (frame, this); + sh->algo = sh_algo; sh_algo->fn (frame, this); return 0; @@ -944,8 +948,6 @@ afr_sh_data_fstat (call_frame_t *frame, xlator_t *this) local->call_count = call_count; afr_reset_children (sh->success_children, priv->child_count); - memset (sh->child_errno, 0, - sizeof (*sh->child_errno) * priv->child_count); sh->success_count = 0; for (i = 0; i < priv->child_count; i++) { child = fstat_children[i]; diff --git a/xlators/cluster/afr/src/afr.h b/xlators/cluster/afr/src/afr.h index 918e44d7d..815f4667c 100644 --- a/xlators/cluster/afr/src/afr.h +++ b/xlators/cluster/afr/src/afr.h @@ -261,6 +261,7 @@ typedef struct { afr_sh_algo_private_t *private; + struct afr_sh_algorithm *algo; afr_lock_cbk_t data_lock_success_handler; afr_lock_cbk_t data_lock_failure_handler; int (*completion_cbk) (call_frame_t *frame, xlator_t *this); |