diff options
| author | Sidhartha Kumar <sidhartha.kumar@oracle.com> | 2024-08-14 12:19:33 -0400 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-09-01 20:26:15 -0700 |
| commit | 7e093834ed8c71361bae556f2c1efc2bf2e33971 (patch) | |
| tree | c36d1453cea996d32dfcb103cd641a050d3f55a9 | |
| parent | 3cd9e92e009de9a036cbf9ec27bad33367fca6f3 (diff) | |
maple_tree: preallocate nodes in mas_erase()
Use mas_wr_preallocate() in mas_erase() to preallocate enough nodes to
complete the erase. Add error handling by skipping the store if the
preallocation lead to some error besides no memory.
Link: https://lkml.kernel.org/r/20240814161944.55347-7-sidhartha.kumar@oracle.com
Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | lib/maple_tree.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/maple_tree.c b/lib/maple_tree.c index 58985107cf00..8ba52ffa778e 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -6371,14 +6371,18 @@ write_retry: /* Must reset to ensure spanning writes of last slot are detected */ mas_reset(mas); - mas_wr_store_setup(&wr_mas); - mas_wr_store_entry(&wr_mas); + mas_wr_preallocate(&wr_mas, NULL); if (mas_nomem(mas, GFP_KERNEL)) { /* in case the range of entry changed when unlocked */ mas->index = mas->last = index; goto write_retry; } + if (mas_is_err(mas)) + goto out; + + mas_wr_store_entry(&wr_mas); +out: mas_destroy(mas); return entry; } |