diff options
Diffstat (limited to 'src/svm/fifo_segment.c')
| -rw-r--r-- | src/svm/fifo_segment.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/src/svm/fifo_segment.c b/src/svm/fifo_segment.c index e19113fd449..d711c87c88c 100644 --- a/src/svm/fifo_segment.c +++ b/src/svm/fifo_segment.c @@ -384,7 +384,7 @@ fs_try_alloc_fifo_freelist_multi_chunk (fifo_segment_header_t * fsh, fifo_segment_slice_t * fss, u32 data_bytes) { - svm_fifo_chunk_t *c, *first = 0, *last = 0; + svm_fifo_chunk_t *c, *first = 0, *last = 0, *next; u32 fl_index, fl_size, n_alloc = 0; svm_fifo_t *f; @@ -421,7 +421,7 @@ fs_try_alloc_fifo_freelist_multi_chunk (fifo_segment_header_t * fsh, c->next = first; first = c; n_alloc += fl_size; - data_bytes -= c->length; + data_bytes -= clib_min (fl_size, data_bytes); } else { @@ -434,11 +434,13 @@ fs_try_alloc_fifo_freelist_multi_chunk (fifo_segment_header_t * fsh, { fl_index = fs_freelist_for_size (c->length); fl_size = fs_freelist_index_to_size (fl_index); + next = c->next; c->next = fss->free_chunks[fl_index]; fss->free_chunks[fl_index] = c; fss->n_fl_chunk_bytes += fl_size; n_alloc -= fl_size; data_bytes += fl_size; + c = next; } first = last = 0; fl_index = fs_freelist_for_size (data_bytes); @@ -584,6 +586,8 @@ fs_try_alloc_fifo (fifo_segment_header_t * fsh, fifo_segment_slice_t * fss, fifo_sz = sizeof (svm_fifo_t) + sizeof (svm_fifo_chunk_t); fifo_sz += 1 << max_log2 (min_size); + clib_spinlock_lock (&fss->chunk_lock); + if (fss->free_fifos && fss->free_chunks[fl_index]) { f = fs_try_alloc_fifo_freelist (fss, fl_index); @@ -618,13 +622,19 @@ fs_try_alloc_fifo (fifo_segment_header_t * fsh, fifo_segment_slice_t * fss, goto done; } } - if (data_bytes <= fss->n_fl_chunk_bytes) - f = fs_try_alloc_fifo_freelist_multi_chunk (fsh, fss, data_bytes); + /* All failed, try to allocate min of data bytes and fifo sz */ + fifo_sz = clib_min (fifo_sz, data_bytes); + if (fifo_sz <= fss->n_fl_chunk_bytes) + f = fs_try_alloc_fifo_freelist_multi_chunk (fsh, fss, fifo_sz); done: + clib_spinlock_unlock (&fss->chunk_lock); if (f) - f->fs_hdr = fsh; + { + f->size = data_bytes; + f->fs_hdr = fsh; + } return f; } |