diff options
| author | Tim Chase <[email protected]> | 2015-09-03 07:13:15 -0500 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2015-09-04 08:43:28 -0700 |
| commit | dca8c34da4212ed85a92111f26bd3a3cd782f270 (patch) | |
| tree | 4c42584782d3832f6130bec373b7e99e2acccb82 | |
| parent | 0282c4137e7409e6d85289f4955adf07fac834f5 (diff) | |
Prevent reclaim in the traverse prefetch thread
Reclaim in the traverse prefetch thread, which is run on the system
taskq, can overrun the stack.
Signed-off-by: Brian Behlendorf <[email protected]>
Signed-off-by: Tim Chase <[email protected]>
Closes #3733
| -rw-r--r-- | module/zfs/dmu_traverse.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/module/zfs/dmu_traverse.c b/module/zfs/dmu_traverse.c index 44b23280d..12d099bfd 100644 --- a/module/zfs/dmu_traverse.c +++ b/module/zfs/dmu_traverse.c @@ -476,6 +476,7 @@ traverse_prefetch_thread(void *arg) traverse_data_t *td_main = arg; traverse_data_t td = *td_main; zbookmark_phys_t czb; + fstrans_cookie_t cookie = spl_fstrans_mark(); td.td_func = traverse_prefetcher; td.td_arg = td_main->td_pfd; @@ -489,6 +490,7 @@ traverse_prefetch_thread(void *arg) td_main->td_pfd->pd_exited = B_TRUE; cv_broadcast(&td_main->td_pfd->pd_cv); mutex_exit(&td_main->td_pfd->pd_mtx); + spl_fstrans_unmark(cookie); } /* |