diff options
author | Mikulas Patocka <mpatocka@redhat.com> | 2009-06-22 10:12:13 +0100 |
---|---|---|
committer | Alasdair G Kergon <agk@redhat.com> | 2009-06-22 10:12:13 +0100 |
commit | a72986c562eeec3f7b992198c168f0f41606fe53 (patch) | |
tree | 2ee7051fa43c04ab0d72487b249aa733ec129703 /tools/perf/builtin-record.c | |
parent | e54f77ddda72781ec1c1696b21aabd6a30cbb7c6 (diff) |
dm raid1: keep retrying alloc if mempool_alloc failed
If the code can't handle allocation failures, use __GFP_NOFAIL so that
in case of memory pressure the allocator will retry indefinitely and
won't return NULL which would cause a crash in the function.
This is still not a correct fix, it may cause a classic deadlock when
memory manager waits for I/O being done and I/O waits for some free memory.
I/O code shouldn't allocate any memory. But in this case it probably
doesn't matter much in practice, people usually do not swap on RAID.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'tools/perf/builtin-record.c')
0 files changed, 0 insertions, 0 deletions