nfsd4: cl_count is unused

[safe/jmp/linux-2.6] / fs / binfmt_flat.c

diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 697f6b5..e0e769b 100644 (file)
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -87,7 +87,7 @@ static int load_flat_shared_library(int id, struct lib_info *p);
 #endif
 
 static int load_flat_binary(struct linux_binprm *, struct pt_regs * regs);
-static int flat_core_dump(long signr, struct pt_regs *regs, struct file *file, unsigned long limit);
+static int flat_core_dump(struct coredump_params *cprm);
 
 static struct linux_binfmt flat_format = {
        .module         = THIS_MODULE,
@@ -102,10 +102,10 @@ static struct linux_binfmt flat_format = {
  * Currently only a stub-function.
  */
 
-static int flat_core_dump(long signr, struct pt_regs *regs, struct file *file, unsigned long limit)
+static int flat_core_dump(struct coredump_params *cprm)
 {
        printk("Process %s:%d received signr %d and should have core dumped\n",
-                       current->comm, current->pid, (int) signr);
+                       current->comm, current->pid, (int) cprm->signr);
        return(1);
 }
 
@@ -278,8 +278,6 @@ static int decompress_exec(
                ret = bprm->file->f_op->read(bprm->file, buf, LBUFSIZE, &fpos);
                if (ret <= 0)
                        break;
-               if (ret >= (unsigned long) -4096)
-                       break;
                len -= ret;
 
                strm.next_in = buf;
@@ -335,7 +333,7 @@ calc_reloc(unsigned long r, struct lib_info *p, int curid, int internalp)
                                        "(%d != %d)", (unsigned) r, curid, id);
                        goto failed;
                } else if ( ! p->lib_list[id].loaded &&
-                               load_flat_shared_library(id, p) > (unsigned long) -4096) {
+                               IS_ERR_VALUE(load_flat_shared_library(id, p))) {
                        printk("BINFMT_FLAT: failed to load library %d", id);
                        goto failed;
                }
@@ -503,7 +501,7 @@ static int load_flat_file(struct linux_binprm * bprm,
         * size limits imposed on them by creating programs with large
         * arrays in the data or bss.
         */
-       rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
+       rlim = rlimit(RLIMIT_DATA);
        if (rlim >= RLIM_INFINITY)
                rlim = ~0;
        if (data_len + bss_len > rlim) {
@@ -521,6 +519,7 @@ static int load_flat_file(struct linux_binprm * bprm,
 
                /* OK, This is the point of no return */
                set_personality(PER_LINUX_32BIT);
+               setup_new_exec(bprm);
        }
 
        /*
@@ -545,7 +544,7 @@ static int load_flat_file(struct linux_binprm * bprm,
                textpos = do_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC,
                                  MAP_PRIVATE|MAP_EXECUTABLE, 0);
                up_write(&current->mm->mmap_sem);
-               if (!textpos  || textpos >= (unsigned long) -4096) {
+               if (!textpos || IS_ERR_VALUE(textpos)) {
                        if (!textpos)
                                textpos = (unsigned long) -ENOMEM;
                        printk("Unable to mmap process text, errno %d\n", (int)-textpos);
@@ -560,7 +559,7 @@ static int load_flat_file(struct linux_binprm * bprm,
                        PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0);
                up_write(&current->mm->mmap_sem);
 
-               if (realdatastart == 0 || realdatastart >= (unsigned long)-4096) {
+               if (realdatastart == 0 || IS_ERR_VALUE(realdatastart)) {
                        if (!realdatastart)
                                realdatastart = (unsigned long) -ENOMEM;
                        printk("Unable to allocate RAM for process data, errno %d\n",
@@ -587,7 +586,7 @@ static int load_flat_file(struct linux_binprm * bprm,
                        result = bprm->file->f_op->read(bprm->file, (char *) datapos,
                                        data_len + (relocs * sizeof(unsigned long)), &fpos);
                }
-               if (result >= (unsigned long)-4096) {
+               if (IS_ERR_VALUE(result)) {
                        printk("Unable to read data+bss, errno %d\n", (int)-result);
                        do_munmap(current->mm, textpos, text_len);
                        do_munmap(current->mm, realdatastart, data_len + extra);
@@ -607,7 +606,7 @@ static int load_flat_file(struct linux_binprm * bprm,
                        PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0);
                up_write(&current->mm->mmap_sem);
 
-               if (!textpos  || textpos >= (unsigned long) -4096) {
+               if (!textpos || IS_ERR_VALUE(textpos)) {
                        if (!textpos)
                                textpos = (unsigned long) -ENOMEM;
                        printk("Unable to allocate RAM for process text/data, errno %d\n",
@@ -641,7 +640,7 @@ static int load_flat_file(struct linux_binprm * bprm,
                        fpos = 0;
                        result = bprm->file->f_op->read(bprm->file,
                                        (char *) textpos, text_len, &fpos);
-                       if (result < (unsigned long) -4096)
+                       if (!IS_ERR_VALUE(result))
                                result = decompress_exec(bprm, text_len, (char *) datapos,
                                                 data_len + (relocs * sizeof(unsigned long)), 0);
                }
@@ -651,13 +650,13 @@ static int load_flat_file(struct linux_binprm * bprm,
                        fpos = 0;
                        result = bprm->file->f_op->read(bprm->file,
                                        (char *) textpos, text_len, &fpos);
-                       if (result < (unsigned long) -4096) {
+                       if (!IS_ERR_VALUE(result)) {
                                fpos = ntohl(hdr->data_start);
                                result = bprm->file->f_op->read(bprm->file, (char *) datapos,
                                        data_len + (relocs * sizeof(unsigned long)), &fpos);
                        }
                }
-               if (result >= (unsigned long)-4096) {
+               if (IS_ERR_VALUE(result)) {
                        printk("Unable to read code+data+bss, errno %d\n",(int)-result);
                        do_munmap(current->mm, textpos, text_len + data_len + extra +
                                MAX_SHARED_LIBS * sizeof(unsigned long));
@@ -828,15 +827,22 @@ static int load_flat_shared_library(int id, struct lib_info *libs)
        if (IS_ERR(bprm.file))
                return res;
 
+       bprm.cred = prepare_exec_creds();
+       res = -ENOMEM;
+       if (!bprm.cred)
+               goto out;
+
        res = prepare_binprm(&bprm);
 
-       if (res <= (unsigned long)-4096)
+       if (!IS_ERR_VALUE(res))
                res = load_flat_file(&bprm, libs, id, NULL);
-       if (bprm.file) {
-               allow_write_access(bprm.file);
-               fput(bprm.file);
-               bprm.file = NULL;
-       }
+
+       abort_creds(bprm.cred);
+
+out:
+       allow_write_access(bprm.file);
+       fput(bprm.file);
+
        return(res);
 }
 
@@ -873,7 +879,7 @@ static int load_flat_binary(struct linux_binprm * bprm, struct pt_regs * regs)
        stack_len += FLAT_DATA_ALIGN - 1;  /* reserve for upcoming alignment */
        
        res = load_flat_file(bprm, &libinfo, 0, &stack_len);
-       if (res > (unsigned long)-4096)
+       if (IS_ERR_VALUE(res))
                return res;
        
        /* Update data segment pointers for all libraries */