Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
authorLinus Torvalds <torvalds@g5.osdl.org>
Sat, 20 Aug 2005 02:15:57 +0000 (19:15 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Sat, 20 Aug 2005 02:15:57 +0000 (19:15 -0700)
32 files changed:
arch/i386/kernel/nmi.c
arch/sparc/kernel/sparc_ksyms.c
arch/sparc64/kernel/Makefile
arch/sparc64/kernel/traps.c
arch/sparc64/kernel/una_asm.S [new file with mode: 0644]
arch/sparc64/kernel/unaligned.c
fs/afs/mntpt.c
fs/autofs/symlink.c
fs/autofs4/symlink.c
fs/befs/linuxvfs.c
fs/cifs/cifsfs.h
fs/cifs/link.c
fs/devfs/base.c
fs/ext2/symlink.c
fs/ext3/symlink.c
fs/freevxfs/vxfs_immed.c
fs/jffs2/symlink.c
fs/jfs/symlink.c
fs/namei.c
fs/nfs/dir.c
fs/nfs/symlink.c
fs/proc/base.c
fs/proc/generic.c
fs/smbfs/symlink.c
fs/sysfs/symlink.c
fs/sysv/symlink.c
fs/ufs/symlink.c
fs/xfs/linux-2.6/xfs_iops.c
include/asm-sparc64/thread_info.h
include/linux/fs.h
mm/shmem.c
scripts/mod/modpost.c

index da6c46d667cb6fdc33d1b89dcdadfe4a41f0fe98..8c242bb1ef4571685cebeb2c11c0160a92bc9695 100644 (file)
@@ -195,7 +195,7 @@ static void disable_lapic_nmi_watchdog(void)
                        wrmsr(MSR_P6_EVNTSEL0, 0, 0);
                        break;
                case 15:
-                       if (boot_cpu_data.x86_model > 0x3)
+                       if (boot_cpu_data.x86_model > 0x4)
                                break;
 
                        wrmsr(MSR_P4_IQ_CCCR0, 0, 0);
@@ -432,7 +432,7 @@ void setup_apic_nmi_watchdog (void)
                        setup_p6_watchdog();
                        break;
                case 15:
-                       if (boot_cpu_data.x86_model > 0x3)
+                       if (boot_cpu_data.x86_model > 0x4)
                                return;
 
                        if (!setup_p4_watchdog())
index 1bd430d0ca0629108135262bbcba06b986a6c005..8faa8dc4de435cd7850170a5ea266f19cd00ac6b 100644 (file)
@@ -98,8 +98,9 @@ extern void ___rw_write_enter(void);
  * The module references will be fixed up by module_frob_arch_sections.
  */
 #define DOT_ALIAS2(__ret, __x, __arg1, __arg2) \
-       extern __ret __x(__arg1, __arg2) \
-                    __attribute__((weak, alias("." # __x)));
+       extern __ret __x(__arg1, __arg2); \
+       asm(".weak " #__x);\
+       asm(#__x "=." #__x);
 
 DOT_ALIAS2(int, div, int, int)
 DOT_ALIAS2(int, mul, int, int)
index 093281bdf85f688c7a867daf0283a2df90e921b9..6f00ab8b9d23ab6b79897acca6899b559c4dbaa4 100644 (file)
@@ -8,7 +8,7 @@ EXTRA_CFLAGS := -Werror
 extra-y                := head.o init_task.o vmlinux.lds
 
 obj-y          := process.o setup.o cpu.o idprom.o \
-                  traps.o devices.o auxio.o \
+                  traps.o devices.o auxio.o una_asm.o \
                   irq.o ptrace.o time.o sys_sparc.o signal.o \
                   unaligned.o central.o pci.o starfire.o semaphore.o \
                   power.o sbus.o iommu_common.o sparc64_ksyms.o chmc.o
index 100b0107c4be89b1484c8b370dd8898871cfe10f..0c9e54b2f0c8874d08d01159a5365a7f7afa9f2a 100644 (file)
@@ -2127,6 +2127,9 @@ void __init trap_init(void)
            TI_PRE_COUNT != offsetof(struct thread_info, preempt_count) ||
            TI_NEW_CHILD != offsetof(struct thread_info, new_child) ||
            TI_SYS_NOERROR != offsetof(struct thread_info, syscall_noerror) ||
+           TI_RESTART_BLOCK != offsetof(struct thread_info, restart_block) ||
+           TI_KUNA_REGS != offsetof(struct thread_info, kern_una_regs) ||
+           TI_KUNA_INSN != offsetof(struct thread_info, kern_una_insn) ||
            TI_FPREGS != offsetof(struct thread_info, fpregs) ||
            (TI_FPREGS & (64 - 1)))
                thread_info_offsets_are_bolixed_dave();
diff --git a/arch/sparc64/kernel/una_asm.S b/arch/sparc64/kernel/una_asm.S
new file mode 100644 (file)
index 0000000..cbb4058
--- /dev/null
@@ -0,0 +1,153 @@
+/* una_asm.S: Kernel unaligned trap assembler helpers.
+ *
+ * Copyright (C) 1996,2005 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ */
+
+       .text
+
+kernel_unaligned_trap_fault:
+       call    kernel_mna_trap_fault
+        nop
+       retl
+        nop
+       .size   kern_unaligned_trap_fault, .-kern_unaligned_trap_fault
+
+       .globl  __do_int_store
+__do_int_store:
+       rd      %asi, %o4
+       wr      %o3, 0, %asi
+       ldx     [%o2], %g3
+       cmp     %o1, 2
+       be,pn   %icc, 2f
+        cmp    %o1, 4
+       be,pt   %icc, 1f
+        srlx   %g3, 24, %g2
+       srlx    %g3, 56, %g1
+       srlx    %g3, 48, %g7
+4:     stba    %g1, [%o0] %asi
+       srlx    %g3, 40, %g1
+5:     stba    %g7, [%o0 + 1] %asi
+       srlx    %g3, 32, %g7
+6:     stba    %g1, [%o0 + 2] %asi
+7:     stba    %g7, [%o0 + 3] %asi
+       srlx    %g3, 16, %g1
+8:     stba    %g2, [%o0 + 4] %asi
+       srlx    %g3, 8, %g7
+9:     stba    %g1, [%o0 + 5] %asi
+10:    stba    %g7, [%o0 + 6] %asi
+       ba,pt   %xcc, 0f
+11:     stba   %g3, [%o0 + 7] %asi
+1:     srl     %g3, 16, %g7
+12:    stba    %g2, [%o0] %asi
+       srl     %g3, 8, %g2
+13:    stba    %g7, [%o0 + 1] %asi
+14:    stba    %g2, [%o0 + 2] %asi
+       ba,pt   %xcc, 0f
+15:     stba   %g3, [%o0 + 3] %asi
+2:     srl     %g3, 8, %g2
+16:    stba    %g2, [%o0] %asi
+17:    stba    %g3, [%o0 + 1] %asi
+0:
+       wr      %o4, 0x0, %asi
+       retl
+        nop
+       .size   __do_int_store, .-__do_int_store
+
+       .section        __ex_table
+       .word           4b, kernel_unaligned_trap_fault
+       .word           5b, kernel_unaligned_trap_fault
+       .word           6b, kernel_unaligned_trap_fault
+       .word           7b, kernel_unaligned_trap_fault
+       .word           8b, kernel_unaligned_trap_fault
+       .word           9b, kernel_unaligned_trap_fault
+       .word           10b, kernel_unaligned_trap_fault
+       .word           11b, kernel_unaligned_trap_fault
+       .word           12b, kernel_unaligned_trap_fault
+       .word           13b, kernel_unaligned_trap_fault
+       .word           14b, kernel_unaligned_trap_fault
+       .word           15b, kernel_unaligned_trap_fault
+       .word           16b, kernel_unaligned_trap_fault
+       .word           17b, kernel_unaligned_trap_fault
+       .previous
+
+       .globl  do_int_load
+do_int_load:
+       rd      %asi, %o5
+       wr      %o4, 0, %asi
+       cmp     %o1, 8
+       bge,pn  %icc, 9f
+        cmp    %o1, 4
+       be,pt   %icc, 6f
+4:      lduba  [%o2] %asi, %g2
+5:     lduba   [%o2 + 1] %asi, %g3
+       sll     %g2, 8, %g2
+       brz,pt  %o3, 3f
+        add    %g2, %g3, %g2
+       sllx    %g2, 48, %g2
+       srax    %g2, 48, %g2
+3:     ba,pt   %xcc, 0f
+        stx    %g2, [%o0]
+6:     lduba   [%o2 + 1] %asi, %g3
+       sll     %g2, 24, %g2
+7:     lduba   [%o2 + 2] %asi, %g7
+       sll     %g3, 16, %g3
+8:     lduba   [%o2 + 3] %asi, %g1
+       sll     %g7, 8, %g7
+       or      %g2, %g3, %g2
+       or      %g7, %g1, %g7
+       or      %g2, %g7, %g2
+       brnz,a,pt %o3, 3f
+        sra    %g2, 0, %g2
+3:     ba,pt   %xcc, 0f
+        stx    %g2, [%o0]
+9:     lduba   [%o2] %asi, %g2
+10:    lduba   [%o2 + 1] %asi, %g3
+       sllx    %g2, 56, %g2
+11:    lduba   [%o2 + 2] %asi, %g7
+       sllx    %g3, 48, %g3
+12:    lduba   [%o2 + 3] %asi, %g1
+       sllx    %g7, 40, %g7
+       sllx    %g1, 32, %g1
+       or      %g2, %g3, %g2
+       or      %g7, %g1, %g7
+13:    lduba   [%o2 + 4] %asi, %g3
+       or      %g2, %g7, %g7
+14:    lduba   [%o2 + 5] %asi, %g1
+       sllx    %g3, 24, %g3
+15:    lduba   [%o2 + 6] %asi, %g2
+       sllx    %g1, 16, %g1
+       or      %g7, %g3, %g7
+16:    lduba   [%o2 + 7] %asi, %g3
+       sllx    %g2, 8, %g2
+       or      %g7, %g1, %g7
+       or      %g2, %g3, %g2
+       or      %g7, %g2, %g7
+       cmp     %o1, 8
+       be,a,pt %icc, 0f
+        stx    %g7, [%o0]
+       srlx    %g7, 32, %g2
+       sra     %g7, 0, %g7
+       stx     %g2, [%o0]
+       stx     %g7, [%o0 + 8]
+0:
+       wr      %o5, 0x0, %asi
+       retl
+        nop
+       .size   __do_int_load, .-__do_int_load
+
+       .section        __ex_table
+       .word           4b, kernel_unaligned_trap_fault
+       .word           5b, kernel_unaligned_trap_fault
+       .word           6b, kernel_unaligned_trap_fault
+       .word           7b, kernel_unaligned_trap_fault
+       .word           8b, kernel_unaligned_trap_fault
+       .word           9b, kernel_unaligned_trap_fault
+       .word           10b, kernel_unaligned_trap_fault
+       .word           11b, kernel_unaligned_trap_fault
+       .word           12b, kernel_unaligned_trap_fault
+       .word           13b, kernel_unaligned_trap_fault
+       .word           14b, kernel_unaligned_trap_fault
+       .word           15b, kernel_unaligned_trap_fault
+       .word           16b, kernel_unaligned_trap_fault
+       .previous
index 4372bf32ecf6f28eb69ff2b8e31b3e7197b5af5d..11c3e88732e482ba54da15452ea38c45f1b0c713 100644 (file)
@@ -180,169 +180,28 @@ static void __attribute_used__ unaligned_panic(char *str, struct pt_regs *regs)
        die_if_kernel(str, regs);
 }
 
-#define do_integer_load(dest_reg, size, saddr, is_signed, asi, errh) ({                \
-__asm__ __volatile__ (                                                         \
-       "wr     %4, 0, %%asi\n\t"                                               \
-       "cmp    %1, 8\n\t"                                                      \
-       "bge,pn %%icc, 9f\n\t"                                                  \
-       " cmp   %1, 4\n\t"                                                      \
-       "be,pt  %%icc, 6f\n"                                                    \
-"4:\t" " lduba [%2] %%asi, %%l1\n"                                             \
-"5:\t" "lduba  [%2 + 1] %%asi, %%l2\n\t"                                       \
-       "sll    %%l1, 8, %%l1\n\t"                                              \
-       "brz,pt %3, 3f\n\t"                                                     \
-       " add   %%l1, %%l2, %%l1\n\t"                                           \
-       "sllx   %%l1, 48, %%l1\n\t"                                             \
-       "srax   %%l1, 48, %%l1\n"                                               \
-"3:\t" "ba,pt  %%xcc, 0f\n\t"                                                  \
-       " stx   %%l1, [%0]\n"                                                   \
-"6:\t" "lduba  [%2 + 1] %%asi, %%l2\n\t"                                       \
-       "sll    %%l1, 24, %%l1\n"                                               \
-"7:\t" "lduba  [%2 + 2] %%asi, %%g7\n\t"                                       \
-       "sll    %%l2, 16, %%l2\n"                                               \
-"8:\t" "lduba  [%2 + 3] %%asi, %%g1\n\t"                                       \
-       "sll    %%g7, 8, %%g7\n\t"                                              \
-       "or     %%l1, %%l2, %%l1\n\t"                                           \
-       "or     %%g7, %%g1, %%g7\n\t"                                           \
-       "or     %%l1, %%g7, %%l1\n\t"                                           \
-       "brnz,a,pt %3, 3f\n\t"                                                  \
-       " sra   %%l1, 0, %%l1\n"                                                \
-"3:\t" "ba,pt  %%xcc, 0f\n\t"                                                  \
-       " stx   %%l1, [%0]\n"                                                   \
-"9:\t" "lduba  [%2] %%asi, %%l1\n"                                             \
-"10:\t"        "lduba  [%2 + 1] %%asi, %%l2\n\t"                                       \
-       "sllx   %%l1, 56, %%l1\n"                                               \
-"11:\t"        "lduba  [%2 + 2] %%asi, %%g7\n\t"                                       \
-       "sllx   %%l2, 48, %%l2\n"                                               \
-"12:\t"        "lduba  [%2 + 3] %%asi, %%g1\n\t"                                       \
-       "sllx   %%g7, 40, %%g7\n\t"                                             \
-       "sllx   %%g1, 32, %%g1\n\t"                                             \
-       "or     %%l1, %%l2, %%l1\n\t"                                           \
-       "or     %%g7, %%g1, %%g7\n"                                             \
-"13:\t"        "lduba  [%2 + 4] %%asi, %%l2\n\t"                                       \
-       "or     %%l1, %%g7, %%g7\n"                                             \
-"14:\t"        "lduba  [%2 + 5] %%asi, %%g1\n\t"                                       \
-       "sllx   %%l2, 24, %%l2\n"                                               \
-"15:\t"        "lduba  [%2 + 6] %%asi, %%l1\n\t"                                       \
-       "sllx   %%g1, 16, %%g1\n\t"                                             \
-       "or     %%g7, %%l2, %%g7\n"                                             \
-"16:\t"        "lduba  [%2 + 7] %%asi, %%l2\n\t"                                       \
-       "sllx   %%l1, 8, %%l1\n\t"                                              \
-       "or     %%g7, %%g1, %%g7\n\t"                                           \
-       "or     %%l1, %%l2, %%l1\n\t"                                           \
-       "or     %%g7, %%l1, %%g7\n\t"                                           \
-       "cmp    %1, 8\n\t"                                                      \
-       "be,a,pt %%icc, 0f\n\t"                                                 \
-       " stx   %%g7, [%0]\n\t"                                                 \
-       "srlx   %%g7, 32, %%l1\n\t"                                             \
-       "sra    %%g7, 0, %%g7\n\t"                                              \
-       "stx    %%l1, [%0]\n\t"                                                 \
-       "stx    %%g7, [%0 + 8]\n"                                               \
-"0:\n\t"                                                                       \
-       "wr     %%g0, %5, %%asi\n\n\t"                                          \
-       ".section __ex_table\n\t"                                               \
-       ".word  4b, " #errh "\n\t"                                              \
-       ".word  5b, " #errh "\n\t"                                              \
-       ".word  6b, " #errh "\n\t"                                              \
-       ".word  7b, " #errh "\n\t"                                              \
-       ".word  8b, " #errh "\n\t"                                              \
-       ".word  9b, " #errh "\n\t"                                              \
-       ".word  10b, " #errh "\n\t"                                             \
-       ".word  11b, " #errh "\n\t"                                             \
-       ".word  12b, " #errh "\n\t"                                             \
-       ".word  13b, " #errh "\n\t"                                             \
-       ".word  14b, " #errh "\n\t"                                             \
-       ".word  15b, " #errh "\n\t"                                             \
-       ".word  16b, " #errh "\n\n\t"                                           \
-       ".previous\n\t"                                                         \
-       : : "r" (dest_reg), "r" (size), "r" (saddr), "r" (is_signed),           \
-         "r" (asi), "i" (ASI_AIUS)                                             \
-       : "l1", "l2", "g7", "g1", "cc");                                        \
-})
+extern void do_int_load(unsigned long *dest_reg, int size,
+                       unsigned long *saddr, int is_signed, int asi);
        
-#define store_common(dst_addr, size, src_val, asi, errh) ({                    \
-__asm__ __volatile__ (                                                         \
-       "wr     %3, 0, %%asi\n\t"                                               \
-       "ldx    [%2], %%l1\n"                                                   \
-       "cmp    %1, 2\n\t"                                                      \
-       "be,pn  %%icc, 2f\n\t"                                                  \
-       " cmp   %1, 4\n\t"                                                      \
-       "be,pt  %%icc, 1f\n\t"                                                  \
-       " srlx  %%l1, 24, %%l2\n\t"                                             \
-       "srlx   %%l1, 56, %%g1\n\t"                                             \
-       "srlx   %%l1, 48, %%g7\n"                                               \
-"4:\t" "stba   %%g1, [%0] %%asi\n\t"                                           \
-       "srlx   %%l1, 40, %%g1\n"                                               \
-"5:\t" "stba   %%g7, [%0 + 1] %%asi\n\t"                                       \
-       "srlx   %%l1, 32, %%g7\n"                                               \
-"6:\t" "stba   %%g1, [%0 + 2] %%asi\n"                                         \
-"7:\t" "stba   %%g7, [%0 + 3] %%asi\n\t"                                       \
-       "srlx   %%l1, 16, %%g1\n"                                               \
-"8:\t" "stba   %%l2, [%0 + 4] %%asi\n\t"                                       \
-       "srlx   %%l1, 8, %%g7\n"                                                \
-"9:\t" "stba   %%g1, [%0 + 5] %%asi\n"                                         \
-"10:\t"        "stba   %%g7, [%0 + 6] %%asi\n\t"                                       \
-       "ba,pt  %%xcc, 0f\n"                                                    \
-"11:\t"        " stba  %%l1, [%0 + 7] %%asi\n"                                         \
-"1:\t" "srl    %%l1, 16, %%g7\n"                                               \
-"12:\t"        "stba   %%l2, [%0] %%asi\n\t"                                           \
-       "srl    %%l1, 8, %%l2\n"                                                \
-"13:\t"        "stba   %%g7, [%0 + 1] %%asi\n"                                         \
-"14:\t"        "stba   %%l2, [%0 + 2] %%asi\n\t"                                       \
-       "ba,pt  %%xcc, 0f\n"                                                    \
-"15:\t"        " stba  %%l1, [%0 + 3] %%asi\n"                                         \
-"2:\t" "srl    %%l1, 8, %%l2\n"                                                \
-"16:\t"        "stba   %%l2, [%0] %%asi\n"                                             \
-"17:\t"        "stba   %%l1, [%0 + 1] %%asi\n"                                         \
-"0:\n\t"                                                                       \
-       "wr     %%g0, %4, %%asi\n\n\t"                                          \
-       ".section __ex_table\n\t"                                               \
-       ".word  4b, " #errh "\n\t"                                              \
-       ".word  5b, " #errh "\n\t"                                              \
-       ".word  6b, " #errh "\n\t"                                              \
-       ".word  7b, " #errh "\n\t"                                              \
-       ".word  8b, " #errh "\n\t"                                              \
-       ".word  9b, " #errh "\n\t"                                              \
-       ".word  10b, " #errh "\n\t"                                             \
-       ".word  11b, " #errh "\n\t"                                             \
-       ".word  12b, " #errh "\n\t"                                             \
-       ".word  13b, " #errh "\n\t"                                             \
-       ".word  14b, " #errh "\n\t"                                             \
-       ".word  15b, " #errh "\n\t"                                             \
-       ".word  16b, " #errh "\n\t"                                             \
-       ".word  17b, " #errh "\n\n\t"                                           \
-       ".previous\n\t"                                                         \
-       : : "r" (dst_addr), "r" (size), "r" (src_val), "r" (asi), "i" (ASI_AIUS)\
-       : "l1", "l2", "g7", "g1", "cc");                                        \
-})
-
-#define do_integer_store(reg_num, size, dst_addr, regs, asi, errh) ({          \
-       unsigned long zero = 0;                                                 \
-       unsigned long *src_val = &zero;                                         \
-                                                                               \
-       if (size == 16) {                                                       \
-               size = 8;                                                       \
-               zero = (((long)(reg_num ?                                       \
-                       (unsigned)fetch_reg(reg_num, regs) : 0)) << 32) |       \
-                       (unsigned)fetch_reg(reg_num + 1, regs);                 \
-       } else if (reg_num) src_val = fetch_reg_addr(reg_num, regs);            \
-       store_common(dst_addr, size, src_val, asi, errh);                       \
-})
-
-extern void smp_capture(void);
-extern void smp_release(void);
-
-#define do_atomic(srcdest_reg, mem, errh) ({                                   \
-       unsigned long flags, tmp;                                               \
-                                                                               \
-       smp_capture();                                                          \
-       local_irq_save(flags);                                                  \
-       tmp = *srcdest_reg;                                                     \
-       do_integer_load(srcdest_reg, 4, mem, 0, errh);                          \
-       store_common(mem, 4, &tmp, errh);                                       \
-       local_irq_restore(flags);                                               \
-       smp_release();                                                          \
-})
+extern void __do_int_store(unsigned long *dst_addr, int size,
+                          unsigned long *src_val, int asi);
+
+static inline void do_int_store(int reg_num, int size, unsigned long *dst_addr,
+                               struct pt_regs *regs, int asi)
+{
+       unsigned long zero = 0;
+       unsigned long *src_val = &zero;
+
+       if (size == 16) {
+               size = 8;
+               zero = (((long)(reg_num ?
+                       (unsigned)fetch_reg(reg_num, regs) : 0)) << 32) |
+                       (unsigned)fetch_reg(reg_num + 1, regs);
+       } else if (reg_num) {
+               src_val = fetch_reg_addr(reg_num, regs);
+       }
+       __do_int_store(dst_addr, size, src_val, asi);
+}
 
 static inline void advance(struct pt_regs *regs)
 {
@@ -364,24 +223,29 @@ static inline int ok_for_kernel(unsigned int insn)
        return !floating_point_load_or_store_p(insn);
 }
 
-void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn) __asm__ ("kernel_mna_trap_fault");
-
-void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn)
+void kernel_mna_trap_fault(void)
 {
-       unsigned long g2 = regs->u_regs [UREG_G2];
+       struct pt_regs *regs = current_thread_info()->kern_una_regs;
+       unsigned int insn = current_thread_info()->kern_una_insn;
+       unsigned long g2 = regs->u_regs[UREG_G2];
        unsigned long fixup = search_extables_range(regs->tpc, &g2);
 
        if (!fixup) {
-               unsigned long address = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f));
+               unsigned long address;
+
+               address = compute_effective_address(regs, insn,
+                                                   ((insn >> 25) & 0x1f));
                if (address < PAGE_SIZE) {
-                       printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference in mna handler");
+                       printk(KERN_ALERT "Unable to handle kernel NULL "
+                              "pointer dereference in mna handler");
                } else
-                       printk(KERN_ALERT "Unable to handle kernel paging request in mna handler");
+                       printk(KERN_ALERT "Unable to handle kernel paging "
+                              "request in mna handler");
                printk(KERN_ALERT " at virtual address %016lx\n",address);
-               printk(KERN_ALERT "current->{mm,active_mm}->context = %016lx\n",
+               printk(KERN_ALERT "current->{active_,}mm->context = %016lx\n",
                        (current->mm ? CTX_HWBITS(current->mm->context) :
                        CTX_HWBITS(current->active_mm->context)));
-               printk(KERN_ALERT "current->{mm,active_mm}->pgd = %016lx\n",
+               printk(KERN_ALERT "current->{active_,}mm->pgd = %016lx\n",
                        (current->mm ? (unsigned long) current->mm->pgd :
                        (unsigned long) current->active_mm->pgd));
                die_if_kernel("Oops", regs);
@@ -400,48 +264,41 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u
        enum direction dir = decode_direction(insn);
        int size = decode_access_size(insn);
 
+       current_thread_info()->kern_una_regs = regs;
+       current_thread_info()->kern_una_insn = insn;
+
        if (!ok_for_kernel(insn) || dir == both) {
-               printk("Unsupported unaligned load/store trap for kernel at <%016lx>.\n",
-                      regs->tpc);
-               unaligned_panic("Kernel does fpu/atomic unaligned load/store.", regs);
-
-               __asm__ __volatile__ ("\n"
-"kernel_unaligned_trap_fault:\n\t"
-               "mov    %0, %%o0\n\t"
-               "call   kernel_mna_trap_fault\n\t"
-               " mov   %1, %%o1\n\t"
-               :
-               : "r" (regs), "r" (insn)
-               : "o0", "o1", "o2", "o3", "o4", "o5", "o7",
-                 "g1", "g2", "g3", "g4", "g7", "cc");
+               printk("Unsupported unaligned load/store trap for kernel "
+                      "at <%016lx>.\n", regs->tpc);
+               unaligned_panic("Kernel does fpu/atomic "
+                               "unaligned load/store.", regs);
+
+               kernel_mna_trap_fault();
        } else {
-               unsigned long addr = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f));
+               unsigned long addr;
 
+               addr = compute_effective_address(regs, insn,
+                                                ((insn >> 25) & 0x1f));
 #ifdef DEBUG_MNA
-               printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] retpc[%016lx]\n",
-                      regs->tpc, dirstrings[dir], addr, size, regs->u_regs[UREG_RETPC]);
+               printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] "
+                      "retpc[%016lx]\n",
+                      regs->tpc, dirstrings[dir], addr, size,
+                      regs->u_regs[UREG_RETPC]);
 #endif
                switch (dir) {
                case load:
-                       do_integer_load(fetch_reg_addr(((insn>>25)&0x1f), regs),
-                                       size, (unsigned long *) addr,
-                                       decode_signedness(insn), decode_asi(insn, regs),
-                                       kernel_unaligned_trap_fault);
+                       do_int_load(fetch_reg_addr(((insn>>25)&0x1f), regs),
+                                   size, (unsigned long *) addr,
+                                   decode_signedness(insn),
+                                   decode_asi(insn, regs));
                        break;
 
                case store:
-                       do_integer_store(((insn>>25)&0x1f), size,
-                                        (unsigned long *) addr, regs,
-                                        decode_asi(insn, regs),
-                                        kernel_unaligned_trap_fault);
-                       break;
-#if 0 /* unsupported */
-               case both:
-                       do_atomic(fetch_reg_addr(((insn>>25)&0x1f), regs),
-                                 (unsigned long *) addr,
-                                 kernel_unaligned_trap_fault);
+                       do_int_store(((insn>>25)&0x1f), size,
+                                    (unsigned long *) addr, regs,
+                                    decode_asi(insn, regs));
                        break;
-#endif
+
                default:
                        panic("Impossible kernel unaligned trap.");
                        /* Not reached... */
index bfc28abe1cb1c13b6a11497ff0cb0ca1ae3705e3..31ee06590de549d833be410c742da32240187d22 100644 (file)
@@ -30,7 +30,7 @@ static struct dentry *afs_mntpt_lookup(struct inode *dir,
                                       struct dentry *dentry,
                                       struct nameidata *nd);
 static int afs_mntpt_open(struct inode *inode, struct file *file);
-static int afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd);
+static void *afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd);
 
 struct file_operations afs_mntpt_file_operations = {
        .open           = afs_mntpt_open,
@@ -233,7 +233,7 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
 /*
  * follow a link from a mountpoint directory, thus causing it to be mounted
  */
-static int afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        struct vfsmount *newmnt;
        struct dentry *old_dentry;
@@ -249,7 +249,7 @@ static int afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
        newmnt = afs_mntpt_do_automount(dentry);
        if (IS_ERR(newmnt)) {
                path_release(nd);
-               return PTR_ERR(newmnt);
+               return (void *)newmnt;
        }
 
        old_dentry = nd->dentry;
@@ -267,7 +267,7 @@ static int afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
        }
 
        kleave(" = %d", err);
-       return err;
+       return ERR_PTR(err);
 } /* end afs_mntpt_follow_link() */
 
 /*****************************************************************************/
index f028396f138395a3b5f2958bbf858fc1c6d27e21..52e8772b066e33fece33d73ae5ddf30568c5b4ca 100644 (file)
 
 #include "autofs_i.h"
 
-static int autofs_follow_link(struct dentry *dentry, struct nameidata *nd)
+/* Nothing to release.. */
+static void *autofs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        char *s=((struct autofs_symlink *)dentry->d_inode->u.generic_ip)->data;
        nd_set_link(nd, s);
-       return 0;
+       return NULL;
 }
 
 struct inode_operations autofs_symlink_inode_operations = {
index c265a66edf0f76555c793eb3ba463a7116b20d80..2ea2c98fd84bdc6ee03e3fda05a1d66425204caf 100644 (file)
 
 #include "autofs_i.h"
 
-static int autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        struct autofs_info *ino = autofs4_dentry_ino(dentry);
        nd_set_link(nd, (char *)ino->u.symlink);
-       return 0;
+       return NULL;
 }
 
 struct inode_operations autofs4_symlink_inode_operations = {
index de5bb280a82895939c6cd9cce29005b5030689ab..abf950e5b647c34a3a1f0adb6641b35804ab272f 100644 (file)
@@ -41,8 +41,8 @@ static struct inode *befs_alloc_inode(struct super_block *sb);
 static void befs_destroy_inode(struct inode *inode);
 static int befs_init_inodecache(void);
 static void befs_destroy_inodecache(void);
-static int befs_follow_link(struct dentry *, struct nameidata *);
-static void befs_put_link(struct dentry *, struct nameidata *);
+static void *befs_follow_link(struct dentry *, struct nameidata *);
+static void befs_put_link(struct dentry *, struct nameidata *, void *);
 static int befs_utf2nls(struct super_block *sb, const char *in, int in_len,
                        char **out, int *out_len);
 static int befs_nls2utf(struct super_block *sb, const char *in, int in_len,
@@ -487,10 +487,10 @@ befs_follow_link(struct dentry *dentry, struct nameidata *nd)
        }
 
        nd_set_link(nd, link);
-       return 0;
+       return NULL;
 }
 
-static void befs_put_link(struct dentry *dentry, struct nameidata *nd)
+static void befs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
 {
        befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
        if (befs_ino->i_flags & BEFS_LONG_SYMLINK) {
index 78af5850c558127bde1a5c929e72f90cf7470403..1fd21f66f2435198e33eca7a2919ef42b08ef6ce 100644 (file)
@@ -83,8 +83,8 @@ extern int cifs_dir_notify(struct file *, unsigned long arg);
 extern struct dentry_operations cifs_dentry_ops;
 
 /* Functions related to symlinks */
-extern int cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
-extern void cifs_put_link(struct dentry *direntry, struct nameidata *nd);
+extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
+extern void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *);
 extern int cifs_readlink(struct dentry *direntry, char __user *buffer, 
                         int buflen);
 extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
index bde0fabfece0aeeaecd9ab4b1c2cf733009975b1..ab925ef4f863c9696b9ed0a1832e9d3d6a0c0d07 100644 (file)
@@ -92,7 +92,7 @@ cifs_hl_exit:
        return rc;
 }
 
-int
+void *
 cifs_follow_link(struct dentry *direntry, struct nameidata *nd)
 {
        struct inode *inode = direntry->d_inode;
@@ -148,7 +148,7 @@ out:
 out_no_free:
        FreeXid(xid);
        nd_set_link(nd, target_path);
-       return 0;
+       return NULL;    /* No cookie */
 }
 
 int
@@ -330,7 +330,7 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen)
        return rc;
 }
 
-void cifs_put_link(struct dentry *direntry, struct nameidata *nd)
+void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *cookie)
 {
        char *p = nd_get_link(nd);
        if (!IS_ERR(p))
index 1ecfe1f184d4fd85ca38d4f02cd2c20189572902..8b679b67e5e0f78e18dbd25015f7990cfa6f1f5a 100644 (file)
@@ -2491,11 +2491,11 @@ static int devfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
        return 0;
 }                              /*  End Function devfs_mknod  */
 
-static int devfs_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *devfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        struct devfs_entry *p = get_devfs_entry_from_vfs_inode(dentry->d_inode);
        nd_set_link(nd, p ? p->u.symlink.linkname : ERR_PTR(-ENODEV));
-       return 0;
+       return NULL;
 }                              /*  End Function devfs_follow_link  */
 
 static struct inode_operations devfs_iops = {
index 9f7bac01d557631e5bcebde72220305dbb3dafcb..1e67d87cfa913b58c648a586235816350481fed5 100644 (file)
 #include "xattr.h"
 #include <linux/namei.h>
 
-static int ext2_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *ext2_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        struct ext2_inode_info *ei = EXT2_I(dentry->d_inode);
        nd_set_link(nd, (char *)ei->i_data);
-       return 0;
+       return NULL;
 }
 
 struct inode_operations ext2_symlink_inode_operations = {
index 8c3e72818fb0893e0ddee74c33f46b7e09da57c4..4f79122cde670558c39a6886623c7522286b9854 100644 (file)
 #include <linux/namei.h>
 #include "xattr.h"
 
-static int ext3_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void * ext3_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        struct ext3_inode_info *ei = EXT3_I(dentry->d_inode);
        nd_set_link(nd, (char*)ei->i_data);
-       return 0;
+       return NULL;
 }
 
 struct inode_operations ext3_symlink_inode_operations = {
index ac677ab262b2b47a9581a44d730942b11b9276a3..b20c3efa364be0c07263b738d74b413f54e0f988 100644 (file)
@@ -38,7 +38,7 @@
 #include "vxfs_inode.h"
 
 
-static int     vxfs_immed_follow_link(struct dentry *, struct nameidata *);
+static void *  vxfs_immed_follow_link(struct dentry *, struct nameidata *);
 
 static int     vxfs_immed_readpage(struct file *, struct page *);
 
@@ -77,7 +77,7 @@ vxfs_immed_follow_link(struct dentry *dp, struct nameidata *np)
 {
        struct vxfs_inode_info          *vip = VXFS_INO(dp->d_inode);
        nd_set_link(np, vip->vii_immed.vi_immed);
-       return 0;
+       return NULL;
 }
 
 /**
index 65ab6b001dcac9d24d9d40aa8bc8527980a0587b..82ef484f5e12337ba1cc190e30275e0ebe7a9e16 100644 (file)
@@ -18,7 +18,7 @@
 #include <linux/namei.h>
 #include "nodelist.h"
 
-static int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd);
+static void *jffs2_follow_link(struct dentry *dentry, struct nameidata *nd);
 
 struct inode_operations jffs2_symlink_inode_operations =
 {      
@@ -27,9 +27,10 @@ struct inode_operations jffs2_symlink_inode_operations =
        .setattr =      jffs2_setattr
 };
 
-static int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *jffs2_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        struct jffs2_inode_info *f = JFFS2_INODE_INFO(dentry->d_inode);
+       char *p = (char *)f->dents;
        
        /*
         * We don't acquire the f->sem mutex here since the only data we
@@ -45,19 +46,20 @@ static int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd)
         * nd_set_link() call.
         */
        
-       if (!f->dents) {
+       if (!p) {
                printk(KERN_ERR "jffs2_follow_link(): can't find symlink taerget\n");
-               return -EIO;
+               p = ERR_PTR(-EIO);
+       } else {
+               D1(printk(KERN_DEBUG "jffs2_follow_link(): target path is '%s'\n", (char *) f->dents));
        }
-       D1(printk(KERN_DEBUG "jffs2_follow_link(): target path is '%s'\n", (char *) f->dents));
 
-       nd_set_link(nd, (char *)f->dents);
+       nd_set_link(nd, p);
        
        /*
         * We unlock the f->sem mutex but VFS will use the f->dents string. This is safe
         * since the only way that may cause f->dents to be changed is iput() operation.
         * But VFS will not use f->dents after iput() has been called.
         */
-       return 0;
+       return NULL;
 }
 
index 287d8d6c3cfd6fd8fd147b1c67ffa4c946ab2e69..16477b3835e1d62235ff939bcab6f32b6be454bb 100644 (file)
 #include "jfs_inode.h"
 #include "jfs_xattr.h"
 
-static int jfs_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *jfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        char *s = JFS_IP(dentry->d_inode)->i_inline;
        nd_set_link(nd, s);
-       return 0;
+       return NULL;
 }
 
 struct inode_operations jfs_symlink_inode_operations = {
index b85f158aef0c8509867693a8c705e19f50fd6b1a..6ec1f0fefc5b017aa321738f7d3581370a91fad3 100644 (file)
@@ -501,6 +501,7 @@ struct path {
 static inline int __do_follow_link(struct path *path, struct nameidata *nd)
 {
        int error;
+       void *cookie;
        struct dentry *dentry = path->dentry;
 
        touch_atime(path->mnt, dentry);
@@ -508,13 +509,15 @@ static inline int __do_follow_link(struct path *path, struct nameidata *nd)
 
        if (path->mnt == nd->mnt)
                mntget(path->mnt);
-       error = dentry->d_inode->i_op->follow_link(dentry, nd);
-       if (!error) {
+       cookie = dentry->d_inode->i_op->follow_link(dentry, nd);
+       error = PTR_ERR(cookie);
+       if (!IS_ERR(cookie)) {
                char *s = nd_get_link(nd);
+               error = 0;
                if (s)
                        error = __vfs_follow_link(nd, s);
                if (dentry->d_inode->i_op->put_link)
-                       dentry->d_inode->i_op->put_link(dentry, nd);
+                       dentry->d_inode->i_op->put_link(dentry, nd, cookie);
        }
        dput(dentry);
        mntput(path->mnt);
@@ -2344,15 +2347,17 @@ out:
 int generic_readlink(struct dentry *dentry, char __user *buffer, int buflen)
 {
        struct nameidata nd;
-       int res;
+       void *cookie;
+
        nd.depth = 0;
-       res = dentry->d_inode->i_op->follow_link(dentry, &nd);
-       if (!res) {
-               res = vfs_readlink(dentry, buffer, buflen, nd_get_link(&nd));
+       cookie = dentry->d_inode->i_op->follow_link(dentry, &nd);
+       if (!IS_ERR(cookie)) {
+               int res = vfs_readlink(dentry, buffer, buflen, nd_get_link(&nd));
                if (dentry->d_inode->i_op->put_link)
-                       dentry->d_inode->i_op->put_link(dentry, &nd);
+                       dentry->d_inode->i_op->put_link(dentry, &nd, cookie);
+               cookie = ERR_PTR(res);
        }
-       return res;
+       return PTR_ERR(cookie);
 }
 
 int vfs_follow_link(struct nameidata *nd, const char *link)
@@ -2395,23 +2400,20 @@ int page_readlink(struct dentry *dentry, char __user *buffer, int buflen)
        return res;
 }
 
-int page_follow_link_light(struct dentry *dentry, struct nameidata *nd)
+void *page_follow_link_light(struct dentry *dentry, struct nameidata *nd)
 {
-       struct page *page;
+       struct page *page = NULL;
        nd_set_link(nd, page_getlink(dentry, &page));
-       return 0;
+       return page;
 }
 
-void page_put_link(struct dentry *dentry, struct nameidata *nd)
+void page_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
 {
-       if (!IS_ERR(nd_get_link(nd))) {
-               struct page *page;
-               page = find_get_page(dentry->d_inode->i_mapping, 0);
-               if (!page)
-                       BUG();
+       struct page *page = cookie;
+
+       if (page) {
                kunmap(page);
                page_cache_release(page);
-               page_cache_release(page);
        }
 }
 
index 147cbf9261cedba976acade07391e43d4af19eb3..2df639f143e8065cdd647044a4283e28fe89d092 100644 (file)
@@ -939,6 +939,7 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
        error = nfs_revalidate_inode(NFS_SERVER(dir), dir);
        if (error < 0) {
                res = ERR_PTR(error);
+               unlock_kernel();
                goto out;
        }
 
index 35f1065991441c3f3d02f6749692da739b8492b3..18dc95b0b64638695a9dfa9b6db1983875d9a757 100644 (file)
 
 /* Symlink caching in the page cache is even more simplistic
  * and straight-forward than readdir caching.
- *
- * At the beginning of the page we store pointer to struct page in question,
- * simplifying nfs_put_link() (if inode got invalidated we can't find the page
- * to be freed via pagecache lookup).
- * The NUL-terminated string follows immediately thereafter.
  */
 
-struct nfs_symlink {
-       struct page *page;
-       char body[0];
-};
-
 static int nfs_symlink_filler(struct inode *inode, struct page *page)
 {
-       const unsigned int pgbase = offsetof(struct nfs_symlink, body);
-       const unsigned int pglen = PAGE_SIZE - pgbase;
        int error;
 
        lock_kernel();
-       error = NFS_PROTO(inode)->readlink(inode, page, pgbase, pglen);
+       error = NFS_PROTO(inode)->readlink(inode, page, 0, PAGE_SIZE);
        unlock_kernel();
        if (error < 0)
                goto error;
@@ -60,11 +48,10 @@ error:
        return -EIO;
 }
 
-static int nfs_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *nfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        struct inode *inode = dentry->d_inode;
        struct page *page;
-       struct nfs_symlink *p;
        void *err = ERR_PTR(nfs_revalidate_inode(NFS_SERVER(inode), inode));
        if (err)
                goto read_failed;
@@ -78,28 +65,20 @@ static int nfs_follow_link(struct dentry *dentry, struct nameidata *nd)
                err = ERR_PTR(-EIO);
                goto getlink_read_error;
        }
-       p = kmap(page);
-       p->page = page;
-       nd_set_link(nd, p->body);
-       return 0;
+       nd_set_link(nd, kmap(page));
+       return page;
 
 getlink_read_error:
        page_cache_release(page);
 read_failed:
        nd_set_link(nd, err);
-       return 0;
+       return NULL;
 }
 
-static void nfs_put_link(struct dentry *dentry, struct nameidata *nd)
+static void nfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
 {
-       char *s = nd_get_link(nd);
-       if (!IS_ERR(s)) {
-               struct nfs_symlink *p;
-               struct page *page;
-
-               p = container_of(s, struct nfs_symlink, body[0]);
-               page = p->page;
-
+       if (cookie) {
+               struct page *page = cookie;
                kunmap(page);
                page_cache_release(page);
        }
index ace151fa487865fd160546d27c07e31384fa17c9..491f2d9f89acd93fabb0d0067ee76f329bc14c2b 100644 (file)
@@ -890,7 +890,7 @@ static struct file_operations proc_seccomp_operations = {
 };
 #endif /* CONFIG_SECCOMP */
 
-static int proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        struct inode *inode = dentry->d_inode;
        int error = -EACCES;
@@ -907,7 +907,7 @@ static int proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
        error = PROC_I(inode)->op.proc_get_link(inode, &nd->dentry, &nd->mnt);
        nd->last_type = LAST_BIND;
 out:
-       return error;
+       return ERR_PTR(error);
 }
 
 static int do_proc_readlink(struct dentry *dentry, struct vfsmount *mnt,
@@ -1692,11 +1692,11 @@ static int proc_self_readlink(struct dentry *dentry, char __user *buffer,
        return vfs_readlink(dentry,buffer,buflen,tmp);
 }
 
-static int proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        char tmp[30];
        sprintf(tmp, "%d", current->tgid);
-       return vfs_follow_link(nd,tmp);
+       return ERR_PTR(vfs_follow_link(nd,tmp));
 }      
 
 static struct inode_operations proc_self_inode_operations = {
index 6c6315d04028711151627a09a29c186fec7d856a..abe8920313fb32b84ad65b78861325727ae5ce45 100644 (file)
@@ -329,10 +329,10 @@ static void release_inode_number(unsigned int inum)
        spin_unlock(&proc_inum_lock);
 }
 
-static int proc_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *proc_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        nd_set_link(nd, PDE(dentry->d_inode)->data);
-       return 0;
+       return NULL;
 }
 
 static struct inode_operations proc_link_inode_operations = {
index 8b069e06433d567e70c3c55b4ec2c2df7f25c337..0c64bc3a0127e9c15c6f76921ea688f7eee73b6f 100644 (file)
@@ -34,7 +34,7 @@ int smb_symlink(struct inode *inode, struct dentry *dentry, const char *oldname)
        return smb_proc_symlink(server_from_dentry(dentry), dentry, oldname);
 }
 
-static int smb_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *smb_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        char *link = __getname();
        DEBUG1("followlink of %s/%s\n", DENTRY_PATH(dentry));
@@ -52,10 +52,10 @@ static int smb_follow_link(struct dentry *dentry, struct nameidata *nd)
                }
        }
        nd_set_link(nd, link);
-       return 0;
+       return NULL;
 }
 
-static void smb_put_link(struct dentry *dentry, struct nameidata *nd)
+static void smb_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
 {
        char *s = nd_get_link(nd);
        if (!IS_ERR(s))
index fae57c83a722f4e782a2651e7dc0b74a66dfee76..de402fa915f2778e010d20bfeca2c6ebc05f6ddd 100644 (file)
@@ -151,17 +151,17 @@ static int sysfs_getlink(struct dentry *dentry, char * path)
 
 }
 
-static int sysfs_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *sysfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        int error = -ENOMEM;
        unsigned long page = get_zeroed_page(GFP_KERNEL);
        if (page)
                error = sysfs_getlink(dentry, (char *) page); 
        nd_set_link(nd, error ? ERR_PTR(error) : (char *)page);
-       return 0;
+       return NULL;
 }
 
-static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd)
+static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
 {
        char *page = nd_get_link(nd);
        if (!IS_ERR(page))
index ed637db2dcb10293769768cb0b75ca3d6b619815..b85ce61d635ce2a41865f3f324d5fdd9095244ca 100644 (file)
@@ -8,10 +8,10 @@
 #include "sysv.h"
 #include <linux/namei.h>
 
-static int sysv_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *sysv_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        nd_set_link(nd, (char *)SYSV_I(dentry->d_inode)->i_data);
-       return 0;
+       return NULL;
 }
 
 struct inode_operations sysv_fast_symlink_inode_operations = {
index a0e49149098f2d19bb8ffec6373136758b2ce60d..337512ed57814ac1949c440ef89c2e1389ad2cfc 100644 (file)
 #include <linux/namei.h>
 #include <linux/ufs_fs.h>
 
-static int ufs_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *ufs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        struct ufs_inode_info *p = UFS_I(dentry->d_inode);
        nd_set_link(nd, (char*)p->i_u1.i_symlink);
-       return 0;
+       return NULL;
 }
 
 struct inode_operations ufs_fast_symlink_inode_operations = {
index 407e99359391ce68beffd4bc176f147231859f0c..f252605514eb1dce23393e4f904d6f5789c3d535 100644 (file)
@@ -374,7 +374,7 @@ linvfs_rename(
  * we need to be very careful about how much stack we use.
  * uio is kmalloced for this reason...
  */
-STATIC int
+STATIC void *
 linvfs_follow_link(
        struct dentry           *dentry,
        struct nameidata        *nd)
@@ -391,14 +391,14 @@ linvfs_follow_link(
        link = (char *)kmalloc(MAXNAMELEN+1, GFP_KERNEL);
        if (!link) {
                nd_set_link(nd, ERR_PTR(-ENOMEM));
-               return 0;
+               return NULL;
        }
 
        uio = (uio_t *)kmalloc(sizeof(uio_t), GFP_KERNEL);
        if (!uio) {
                kfree(link);
                nd_set_link(nd, ERR_PTR(-ENOMEM));
-               return 0;
+               return NULL;
        }
 
        vp = LINVFS_GET_VP(dentry->d_inode);
@@ -422,10 +422,10 @@ linvfs_follow_link(
        kfree(uio);
 
        nd_set_link(nd, link);
-       return 0;
+       return NULL;
 }
 
-static void linvfs_put_link(struct dentry *dentry, struct nameidata *nd)
+static void linvfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
 {
        char *s = nd_get_link(nd);
        if (!IS_ERR(s))
index 352d9943661af3738a05c0b29748a8937692f44f..c94d8b3991bdde0cf93be99e258f8798298db7e3 100644 (file)
@@ -68,6 +68,9 @@ struct thread_info {
 
        struct restart_block    restart_block;
 
+       struct pt_regs          *kern_una_regs;
+       unsigned int            kern_una_insn;
+
        unsigned long           fpregs[0] __attribute__ ((aligned(64)));
 };
 
@@ -103,6 +106,8 @@ struct thread_info {
 #define TI_PCR         0x00000490
 #define TI_CEE_STUFF   0x00000498
 #define TI_RESTART_BLOCK 0x000004a0
+#define TI_KUNA_REGS   0x000004c8
+#define TI_KUNA_INSN   0x000004d0
 #define TI_FPREGS      0x00000500
 
 /* We embed this in the uppermost byte of thread_info->flags */
index f9adf75fd9b4badc81b1e5d61df8ba211615f579..67e6732d4fdc736ec39f4c57324e4d64064e063e 100644 (file)
@@ -993,8 +993,8 @@ struct inode_operations {
        int (*rename) (struct inode *, struct dentry *,
                        struct inode *, struct dentry *);
        int (*readlink) (struct dentry *, char __user *,int);
-       int (*follow_link) (struct dentry *, struct nameidata *);
-       void (*put_link) (struct dentry *, struct nameidata *);
+       void * (*follow_link) (struct dentry *, struct nameidata *);
+       void (*put_link) (struct dentry *, struct nameidata *, void *);
        void (*truncate) (struct inode *);
        int (*permission) (struct inode *, int, struct nameidata *);
        int (*setattr) (struct dentry *, struct iattr *);
@@ -1602,8 +1602,8 @@ extern struct file_operations generic_ro_fops;
 extern int vfs_readlink(struct dentry *, char __user *, int, const char *);
 extern int vfs_follow_link(struct nameidata *, const char *);
 extern int page_readlink(struct dentry *, char __user *, int);
-extern int page_follow_link_light(struct dentry *, struct nameidata *);
-extern void page_put_link(struct dentry *, struct nameidata *);
+extern void *page_follow_link_light(struct dentry *, struct nameidata *);
+extern void page_put_link(struct dentry *, struct nameidata *, void *);
 extern int page_symlink(struct inode *inode, const char *symname, int len);
 extern struct inode_operations page_symlink_inode_operations;
 extern int generic_readlink(struct dentry *, char __user *, int);
index e64fa726a790e0c4162fec88db0e1032dd8a5be0..5a81b1ee4f7a43fc972d7ec762f2d51d7ac8aa42 100644 (file)
@@ -1773,32 +1773,27 @@ static int shmem_symlink(struct inode *dir, struct dentry *dentry, const char *s
        return 0;
 }
 
-static int shmem_follow_link_inline(struct dentry *dentry, struct nameidata *nd)
+static void *shmem_follow_link_inline(struct dentry *dentry, struct nameidata *nd)
 {
        nd_set_link(nd, (char *)SHMEM_I(dentry->d_inode));
-       return 0;
+       return NULL;
 }
 
-static int shmem_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *shmem_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        struct page *page = NULL;
        int res = shmem_getpage(dentry->d_inode, 0, &page, SGP_READ, NULL);
        nd_set_link(nd, res ? ERR_PTR(res) : kmap(page));
-       return 0;
+       return page;
 }
 
-static void shmem_put_link(struct dentry *dentry, struct nameidata *nd)
+static void shmem_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
 {
        if (!IS_ERR(nd_get_link(nd))) {
-               struct page *page;
-
-               page = find_get_page(dentry->d_inode->i_mapping, 0);
-               if (!page)
-                       BUG();
+               struct page *page = cookie;
                kunmap(page);
                mark_page_accessed(page);
                page_cache_release(page);
-               page_cache_release(page);
        }
 }
 
index 9b9f94c915d234365c14444872c5ea5e1163bd6d..09ffca54b3734136aa46afcfcbaeb279e80960d9 100644 (file)
@@ -359,11 +359,16 @@ handle_modversions(struct module *mod, struct elf_info *info,
                /* ignore __this_module, it will be resolved shortly */
                if (strcmp(symname, MODULE_SYMBOL_PREFIX "__this_module") == 0)
                        break;
-#ifdef STT_REGISTER
+/* cope with newer glibc (2.3.4 or higher) STT_ definition in elf.h */
+#if defined(STT_REGISTER) || defined(STT_SPARC_REGISTER)
+/* add compatibility with older glibc */
+#ifndef STT_SPARC_REGISTER
+#define STT_SPARC_REGISTER STT_REGISTER
+#endif
                if (info->hdr->e_machine == EM_SPARC ||
                    info->hdr->e_machine == EM_SPARCV9) {
                        /* Ignore register directives. */
-                       if (ELF_ST_TYPE(sym->st_info) == STT_REGISTER)
+                       if (ELF_ST_TYPE(sym->st_info) == STT_SPARC_REGISTER)
                                break;
                }
 #endif