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| author | David Teigland <teigland@redhat.com> | 2009-11-30 16:34:43 -0600 |
|---|---|---|
| committer | David Teigland <teigland@redhat.com> | 2009-11-30 16:34:43 -0600 |
| commit | 573c24c4af6664ffcd9aa7ba617a35fde2b95534 (patch) | |
| tree | 9222c0c8921fda5b842c2d1007d911d47bd4fe7c /fs/dlm/debug_fs.c | |
| parent | a8a8a669ea13d792296737505adc43ccacf3a648 (diff) | |
| download | linux-573c24c4af6664ffcd9aa7ba617a35fde2b95534.tar.gz linux-573c24c4af6664ffcd9aa7ba617a35fde2b95534.tar.bz2 linux-573c24c4af6664ffcd9aa7ba617a35fde2b95534.zip | |
dlm: always use GFP_NOFS
Replace all GFP_KERNEL and ls_allocation with GFP_NOFS.
ls_allocation would be GFP_KERNEL for userland lockspaces
and GFP_NOFS for file system lockspaces.
It was discovered that any lockspaces on the system can
affect all others by triggering memory reclaim in the
file system which could in turn call back into the dlm
to acquire locks, deadlocking dlm threads that were
shared by all lockspaces, like dlm_recv.
Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/debug_fs.c')
| -rw-r--r-- | fs/dlm/debug_fs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c index 1c8bb8c3a82e..375a2359b3bf 100644 --- a/fs/dlm/debug_fs.c +++ b/fs/dlm/debug_fs.c @@ -404,7 +404,7 @@ static void *table_seq_start(struct seq_file *seq, loff_t *pos) if (bucket >= ls->ls_rsbtbl_size) return NULL; - ri = kzalloc(sizeof(struct rsbtbl_iter), GFP_KERNEL); + ri = kzalloc(sizeof(struct rsbtbl_iter), GFP_NOFS); if (!ri) return NULL; if (n == 0) |