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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-28 13:35:09 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-28 13:35:09 -0500
commita7f16d10b510f9ee3500af7831f2e3094fab3dca (patch)
treebd2bff5e13083e1103205ff926342d6674f8e5c5 /arch/x86/kernel/alternative.c
parentf66ffdedbf0fc059a92219bb08c1dbcac88f074b (diff)
parent17c0e7107bed3d578864e6519f7f4e4c324c8f58 (diff)
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Mark atomic irq ops raw for 32bit legacy x86: Merge show_regs() x86: Macroise x86 cache descriptors x86-32: clean up rwsem inline asm statements x86: Merge asm/atomic_{32,64}.h x86: Sync asm/atomic_32.h and asm/atomic_64.h x86: Split atomic64_t functions into seperate headers x86-64: Modify memcpy()/memset() alternatives mechanism x86-64: Modify copy_user_generic() alternatives mechanism x86: Lift restriction on the location of FIX_BTMAP_* x86, core: Optimize hweight32()
Diffstat (limited to 'arch/x86/kernel/alternative.c')
-rw-r--r--arch/x86/kernel/alternative.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index e63b80e5861c..e6ea0342c8f8 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -205,7 +205,7 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
205 struct alt_instr *end) 205 struct alt_instr *end)
206{ 206{
207 struct alt_instr *a; 207 struct alt_instr *a;
208 char insnbuf[MAX_PATCH_LEN]; 208 u8 insnbuf[MAX_PATCH_LEN];
209 209
210 DPRINTK("%s: alt table %p -> %p\n", __func__, start, end); 210 DPRINTK("%s: alt table %p -> %p\n", __func__, start, end);
211 for (a = start; a < end; a++) { 211 for (a = start; a < end; a++) {
@@ -223,6 +223,8 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
223 } 223 }
224#endif 224#endif
225 memcpy(insnbuf, a->replacement, a->replacementlen); 225 memcpy(insnbuf, a->replacement, a->replacementlen);
226 if (*insnbuf == 0xe8 && a->replacementlen == 5)
227 *(s32 *)(insnbuf + 1) += a->replacement - a->instr;
226 add_nops(insnbuf + a->replacementlen, 228 add_nops(insnbuf + a->replacementlen,
227 a->instrlen - a->replacementlen); 229 a->instrlen - a->replacementlen);
228 text_poke_early(instr, insnbuf, a->instrlen); 230 text_poke_early(instr, insnbuf, a->instrlen);