Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

3 files changed, 23 insertions, 12 deletions

diff --git a/arch/sparc/kernel/systbls.S b/arch/sparc/kernel/systbls.S
index 025f4516e651..e457a40838fc 100644
--- a/arch/sparc/kernel/systbls.S
+++ b/arch/sparc/kernel/systbls.S
@@ -48,8 +48,8 @@ sys_call_table:
 /*135*/	.long sys_nis_syscall, sys_mkdir, sys_rmdir, sys_utimes, sys_stat64
 /*140*/	.long sys_sendfile64, sys_nis_syscall, sys_futex, sys_gettid, sys_getrlimit
 /*145*/	.long sys_setrlimit, sys_pivot_root, sys_prctl, sys_pciconfig_read, sys_pciconfig_write
-/*150*/	.long sys_nis_syscall, sys_nis_syscall, sys_nis_syscall, sys_poll, sys_getdents64
-/*155*/	.long sys_fcntl64, sys_ni_syscall, sys_statfs, sys_fstatfs, sys_oldumount
+/*150*/	.long sys_nis_syscall, sys_inotify_init, sys_inotify_add_watch, sys_poll, sys_getdents64
+/*155*/	.long sys_fcntl64, sys_inotify_rm_watch, sys_statfs, sys_fstatfs, sys_oldumount
 /*160*/	.long sys_sched_setaffinity, sys_sched_getaffinity, sys_getdomainname, sys_setdomainname, sys_nis_syscall
 /*165*/	.long sys_quotactl, sys_set_tid_address, sys_mount, sys_ustat, sys_setxattr
 /*170*/	.long sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents
diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index bceb91a8a2bd..53eaf2345fe9 100644
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -50,8 +50,8 @@ sys_call_table32:
 	.word sys_nis_syscall, sys32_mkdir, sys_rmdir, sys32_utimes, compat_sys_stat64
 /*140*/	.word sys32_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit
 	.word compat_sys_setrlimit, sys_pivot_root, sys32_prctl, sys_pciconfig_read, sys_pciconfig_write
-/*150*/	.word sys_nis_syscall, sys_nis_syscall, sys_nis_syscall, sys_poll, sys_getdents64
-	.word compat_sys_fcntl64, sys_ni_syscall, compat_sys_statfs, compat_sys_fstatfs, sys_oldumount
+/*150*/	.word sys_nis_syscall, sys_inotify_init, sys_inotify_add_watch, sys_poll, sys_getdents64
+	.word compat_sys_fcntl64, sys_inotify_rm_watch, compat_sys_statfs, compat_sys_fstatfs, sys_oldumount
 /*160*/	.word compat_sys_sched_setaffinity, compat_sys_sched_getaffinity, sys32_getdomainname, sys32_setdomainname, sys_nis_syscall
 	.word sys_quotactl, sys_set_tid_address, compat_sys_mount, sys_ustat, sys32_setxattr
 /*170*/	.word sys32_lsetxattr, sys32_fsetxattr, sys_getxattr, sys_lgetxattr, compat_sys_getdents
@@ -116,8 +116,8 @@ sys_call_table:
 	.word sys_socketpair, sys_mkdir, sys_rmdir, sys_utimes, sys_stat64
 /*140*/	.word sys_sendfile64, sys_getpeername, sys_futex, sys_gettid, sys_getrlimit
 	.word sys_setrlimit, sys_pivot_root, sys_prctl, sys_pciconfig_read, sys_pciconfig_write
-/*150*/	.word sys_getsockname, sys_nis_syscall, sys_nis_syscall, sys_poll, sys_getdents64
-	.word sys_nis_syscall, sys_ni_syscall, sys_statfs, sys_fstatfs, sys_oldumount
+/*150*/	.word sys_getsockname, sys_inotify_init, sys_inotify_add_watch, sys_poll, sys_getdents64
+	.word sys_nis_syscall, sys_inotify_rm_watch, sys_statfs, sys_fstatfs, sys_oldumount
 /*160*/	.word sys_sched_setaffinity, sys_sched_getaffinity, sys_getdomainname, sys_setdomainname, sys_utrap_install
 	.word sys_quotactl, sys_set_tid_address, sys_mount, sys_ustat, sys_setxattr
 /*170*/	.word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 8fc413cb6acd..3fbaf342a452 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -121,15 +121,24 @@ __inline__ void flush_dcache_page_impl(struct page *page)
 }
 
 #define PG_dcache_dirty		PG_arch_1
+#define PG_dcache_cpu_shift	24
+#define PG_dcache_cpu_mask	(256 - 1)
+
+#if NR_CPUS > 256
+#error D-cache dirty tracking and thread_info->cpu need fixing for > 256 cpus
+#endif
 
 #define dcache_dirty_cpu(page) \
-	(((page)->flags >> 24) & (NR_CPUS - 1UL))
+	(((page)->flags >> PG_dcache_cpu_shift) & PG_dcache_cpu_mask)
 
 static __inline__ void set_dcache_dirty(struct page *page, int this_cpu)
 {
 	unsigned long mask = this_cpu;
-	unsigned long non_cpu_bits = ~((NR_CPUS - 1UL) << 24UL);
-	mask = (mask << 24) | (1UL << PG_dcache_dirty);
+	unsigned long non_cpu_bits;
+
+	non_cpu_bits = ~(PG_dcache_cpu_mask << PG_dcache_cpu_shift);
+	mask = (mask << PG_dcache_cpu_shift) | (1UL << PG_dcache_dirty);
+
 	__asm__ __volatile__("1:\n\t"
 			     "ldx	[%2], %%g7\n\t"
 			     "and	%%g7, %1, %%g1\n\t"
@@ -151,7 +160,7 @@ static __inline__ void clear_dcache_dirty_cpu(struct page *page, unsigned long c
 	__asm__ __volatile__("! test_and_clear_dcache_dirty\n"
 			     "1:\n\t"
 			     "ldx	[%2], %%g7\n\t"
-			     "srlx	%%g7, 24, %%g1\n\t"
+			     "srlx	%%g7, %4, %%g1\n\t"
 			     "and	%%g1, %3, %%g1\n\t"
 			     "cmp	%%g1, %0\n\t"
 			     "bne,pn	%%icc, 2f\n\t"
@@ -164,7 +173,8 @@ static __inline__ void clear_dcache_dirty_cpu(struct page *page, unsigned long c
 			     "2:"
 			     : /* no outputs */
 			     : "r" (cpu), "r" (mask), "r" (&page->flags),
-			       "i" (NR_CPUS - 1UL)
+			       "i" (PG_dcache_cpu_mask),
+			       "i" (PG_dcache_cpu_shift)
 			     : "g1", "g7");
 }
 
@@ -180,7 +190,8 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t p
 	if (pfn_valid(pfn) &&
 	    (page = pfn_to_page(pfn), page_mapping(page)) &&
 	    ((pg_flags = page->flags) & (1UL << PG_dcache_dirty))) {
-		int cpu = ((pg_flags >> 24) & (NR_CPUS - 1UL));
+		int cpu = ((pg_flags >> PG_dcache_cpu_shift) &
+			   PG_dcache_cpu_mask);
 		int this_cpu = get_cpu();
 
 		/* This is just to optimize away some function calls