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target: Allocate aptpl_buf inside update_and_write_aptpl()

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Instead of taking the buffer and length, update_and_write_aptpl() will
allocate the buffer as needed, and then free it. Instead, the function
takes an 'aptpl' boolean parameter.

This enables us to remove memory alloc/frees from struct
t10_pr_registration and other spots.

There is a slight loss of functionality because each callsite doesn't get
its own pr_debug any more, but this info can be cleaned via ftrace if
necessary and I think the shorter code is worth it.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Andy Grover
2013-05-16 10:41:02 -07:00
committed by Nicholas Bellinger
parent 63e03349f5
commit 459f213ba1
2 changed files with 48 additions and 157 deletions
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include/target/target_core_base.h
-2
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@@ -339,8 +339,6 @@ struct t10_pr_registration {
/* Used during APTPL metadata reading */
#define PR_APTPL_MAX_TPORT_LEN 256
unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN];
/* For writing out live meta data */
unsigned char *pr_aptpl_buf;
u16 pr_aptpl_rpti;
u16 pr_reg_tpgt;
/* Reservation effects all target ports */