github/ocf
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Reduce max trim request size to 512K

Browse Source 
512K is the maximum request size for which request map
fits into one page (4K) regardless of cacheline size.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
This commit is contained in:
Adam Rutkowski 2020-02-10 15:21:16 -05:00
parent 3eadffad0f
commit 26fd938ccf
2 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
inc/ocf_def.h
View File

@ -352,6 +352,6 @@ typedef enum {
* @} * @}
*/ */
#define MAX_TRIM_RQ_SIZE (1 * MiB) #define MAX_TRIM_RQ_SIZE (512 * KiB)
#endif /* __OCF_DEF_H__ */ #endif /* __OCF_DEF_H__ */

3
src/ocf_request.c
View File

@ -224,6 +224,9 @@ int ocf_req_alloc_map(struct ocf_request *req)
int ocf_req_alloc_map_discard(struct ocf_request *req) int ocf_req_alloc_map_discard(struct ocf_request *req)
{ {
ENV_BUILD_BUG_ON(MAX_TRIM_RQ_SIZE / ocf_cache_line_size_4 *
sizeof(struct ocf_map_info) > 4 * KiB);
if (req->byte_length <= MAX_TRIM_RQ_SIZE) if (req->byte_length <= MAX_TRIM_RQ_SIZE)
return ocf_req_alloc_map(req); return ocf_req_alloc_map(req);