apfs/linux-apfs
0
0
Fork 0
mirror of https://github.com/linux-apfs/linux-apfs.git synced 2026-05-01 15:00:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

target: Allow control CDBs with data > 1 page

Browse Source 
We need to handle >1 page control cdbs, so extend the code to do a vmap
if bigger than 1 page. It seems like kmap() is still preferable if just
a page, fewer TLB shootdowns(?), so keep using that when possible.

Rename function pair for their new scope.

Signed-off-by: Andy Grover <agrover@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Andy Grover
2012-01-16 16:57:08 -08:00
committed by Nicholas Bellinger
parent e8904dc500
commit 4949314c72
8 changed files with 80 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/target/target_core_backend.h
+2 -2
View File
@@ -59,7 +59,7 @@ int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *);
int transport_set_vpd_ident(struct t10_vpd *, unsigned char *);
/* core helpers also used by command snooping in pscsi */
void *transport_kmap_first_data_page(struct se_cmd *);
void transport_kunmap_first_data_page(struct se_cmd *);
void *transport_kmap_data_sg(struct se_cmd *);
void transport_kunmap_data_sg(struct se_cmd *);
#endif /* TARGET_CORE_BACKEND_H */
include/target/target_core_base.h
+1
View File
@@ -582,6 +582,7 @@ struct se_cmd {
struct scatterlist *t_data_sg;
unsigned int t_data_nents;
void *t_data_vmap;
struct scatterlist *t_bidi_data_sg;
unsigned int t_bidi_data_nents;