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| author |   Jeremy Fitzhardinge <jeremy@goop.org> | 2007-05-02 19:27:14 +0200 |
|---|---|---|
| committer |   Andi Kleen <andi@basil.nowhere.org> | 2007-05-02 19:27:14 +0200 |
| commit | d582203578a1f3d408e27bb9042e8635954cd320 (patch) | |
| tree | 385952bdda8f9c2b6b4c9c659a0eba872749e948 /README | |
| parent | [PATCH] i386: PARAVIRT: rename struct paravirt_patch to paravirt_patch_site for clarity (diff) | |
| download | linux-dev-d582203578a1f3d408e27bb9042e8635954cd320.tar.xz linux-dev-d582203578a1f3d408e27bb9042e8635954cd320.zip | |
[PATCH] i386: PARAVIRT: Use patch site IDs computed from offset in paravirt_ops structure
Use patch type identifiers derived from the offset of the operation in
the paravirt_ops structure. This avoids having to maintain a separate
enum for patch site types.
Also, since the identifier is derived from the offset into
paravirt_ops, the offset can be derived from the identifier. This is
used to remove replicated information in the various callsite macros,
which has been a source of bugs in the past.
This patch also drops the fused save_fl+cli operation, which doesn't
really add much and makes things more complex - specifically because
it breaks the 1:1 relationship between identifiers and offsets. If
this operation turns out to be particularly beneficial, then the right
answer is to define a new entrypoint for it.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Zachary Amsden <zach@vmware.com>
Diffstat (limited to 'README')
0 files changed, 0 insertions, 0 deletions