patch-2.4.20 linux-2.4.20/fs/intermezzo/kml.c

• Lines: 215
• Date: Wed Dec 31 16:00:00 1969
• Orig file: linux-2.4.19/fs/intermezzo/kml.c
• Orig date: Fri Aug 2 17:39:45 2002

diff -urN linux-2.4.19/fs/intermezzo/kml.c linux-2.4.20/fs/intermezzo/kml.c
@@ -1,214 +0,0 @@
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#define __NO_VERSION__
-#include <linux/module.h>
-#include <asm/uaccess.h>
-
-#include <linux/intermezzo_fs.h>
-#include <linux/intermezzo_upcall.h>
-#include <linux/intermezzo_psdev.h>
-#include <linux/intermezzo_kml.h>
-
-static struct presto_file_set * kml_getfset (char *path)
-{
-        return presto_path2fileset(path);
-}
-
-/* Send the KML buffer and related volume info into kernel */
-int begin_kml_reint (struct file *file, unsigned long arg)
-{
-        struct {
-                char *volname;
-                unsigned int namelen;  
-                char *recbuf;
-                unsigned int reclen;     /* int   newpos; */
-        } input;
-        struct kml_fsdata *kml_fsdata = NULL;
-        struct presto_file_set *fset = NULL;
-        char   *path;
-        int    error;
-
-        ENTRY;
-        /* allocate buffer & copy it to kernel space */
-        if (copy_from_user(&input, (char *)arg, sizeof(input))) {
-                EXIT;
-                return -EFAULT;
-        }
-
-	if (input.namelen > PATH_MAX)
-	{
-		EXIT;
-		return -EINVAL;
-	}
-		
-        if (input.reclen > kml_fsdata->kml_maxsize)
-                return -ENOMEM; /* we'll find solution to this in the future */
-
-        PRESTO_ALLOC(path, char *, input.namelen + 1);
-        if ( !path ) {
-                EXIT;
-                return -ENOMEM;
-        }
-        if (copy_from_user(path, input.volname, input.namelen)) {
-                PRESTO_FREE(path, input.namelen + 1);
-                EXIT;
-                return -EFAULT;
-        }
-        path[input.namelen] = '\0';
-        fset = kml_getfset (path);
-        PRESTO_FREE(path, input.namelen + 1);
-
-        kml_fsdata = FSET_GET_KMLDATA(fset);
-        /* read the buf from user memory here */
-        if (copy_from_user(kml_fsdata->kml_buf, input.recbuf, input.reclen)) {
-                EXIT;
-                return -EFAULT;
-        }
-        kml_fsdata->kml_len = input.reclen;
-
-        decode_kmlrec (&kml_fsdata->kml_reint_cache,
-                        kml_fsdata->kml_buf, kml_fsdata->kml_len);
-
-        kml_fsdata->kml_reint_current = kml_fsdata->kml_reint_cache.next;
-        kml_fsdata->kml_reintpos = 0;
-        kml_fsdata->kml_count = 0;
-        return 0;
-}
-
-/* DO_KML_REINT  */
-int do_kml_reint (struct file *file, unsigned long arg)
-{
-        struct {
-                char *volname;
-                unsigned int namelen;  
-                char *path;
-                unsigned int pathlen;
-                int recno;
-                int offset;
-                int len;
-                int generation;
-                __u64 ino;
-        } input;
-        int error;
-        char   *path;
-        struct kml_rec *close_rec;
-        struct kml_fsdata *kml_fsdata;
-        struct presto_file_set *fset;
-
-        ENTRY;
-        if (copy_from_user(&input, (char *)arg, sizeof(input))) {
-                EXIT;
-                return -EFAULT;
-        }
-        
-        if(input.namelen > PATH_MAX || input.pathlen > PATH_MAX)
-        {
-        	EXIT;
-        	return -EFAULT;
-        }
-        
-        PRESTO_ALLOC(path, char *, input.namelen + 1);
-        if ( !path ) {
-                EXIT;
-                return -ENOMEM;
-        }
-        if (copy_from_user(path, input.volname, input.namelen)) {
-                PRESTO_FREE(path, input.namelen + 1);
-                EXIT;
-                return -EFAULT;
-        }
-        path[input.namelen] = '\0';
-        fset = kml_getfset (path);
-        PRESTO_FREE(path, input.namelen + 1);
-
-        kml_fsdata = FSET_GET_KMLDATA(fset);
-
-        error = kml_reintbuf(kml_fsdata, 
-                fset->fset_mtpt->d_name.name, 
-                &close_rec);
-
-        if (error == KML_CLOSE_BACKFETCH && close_rec != NULL) {
-                struct kml_close *close = &close_rec->rec_kml.close;
-                input.ino = close->ino;
-                input.generation = close->generation;
-                if (strlen (close->path) + 1 < input.pathlen) {
-                        strcpy (input.path, close->path);
-                        input.pathlen = strlen (close->path) + 1;
-                        input.recno = close_rec->rec_tail.recno;
-                        input.offset = close_rec->rec_kml_offset;
-                        input.len = close_rec->rec_size;
-                        input.generation = close->generation;
-                        input.ino = close->ino;
-                }
-                else {
-                        CDEBUG(D_KML, "KML_DO_REINT::no space to save:%d < %d",
-                                strlen (close->path) + 1, input.pathlen);
-                        error = -ENOMEM;
-                }
-                if (copy_to_user((char *)arg, &input, sizeof (input)))
-			return -EFAULT;
-        }
-        return error;
-}
-
-/* END_KML_REINT */
-int end_kml_reint (struct file *file, unsigned long arg)
-{
-        /* Free KML buffer and related volume info */
-        struct {
-                char *volname;
-                unsigned int namelen;  
-#if 0
-                int   count; 
-                int   newpos; 
-#endif
-        } input;
-        struct presto_file_set *fset = NULL;
-        struct kml_fsdata *kml_fsdata = NULL;
-        int error;
-        char *path;
-
-        ENTRY;
-        if (copy_from_user(&input, (char *)arg, sizeof(input))) { 
-               EXIT;
-               return -EFAULT;
-        }
-
-	if (input.namelen > PATH_MAX)
-	{
-		EXIT;
-		return -EFAULT;
-	}
-	
-        PRESTO_ALLOC(path, char *, input.namelen + 1);
-        if ( !path ) {
-                EXIT;
-                return -ENOMEM;
-        }
-        if (copy_from_user(path, input.volname, input.namelen)) {
-        if ( error ) {
-                PRESTO_FREE(path, input.namelen + 1);
-                EXIT;
-                return -EFAULT;
-        }
-        path[input.namelen] = '\0';
-        fset = kml_getfset (path);
-        PRESTO_FREE(path, input.namelen + 1);
-
-        kml_fsdata = FSET_GET_KMLDATA(fset);
-        delete_kmlrec (&kml_fsdata->kml_reint_cache);
-
-        /* kml reint support */
-        kml_fsdata->kml_reint_current = NULL;
-        kml_fsdata->kml_len = 0;
-        kml_fsdata->kml_reintpos = 0;
-        kml_fsdata->kml_count = 0;
-#if 0
-        input.newpos = kml_upc->newpos;
-        input.count = kml_upc->count;
-        if (copy_to_user((char *)arg, &input, sizeof (input)))
-		return -EFAULT;
-#endif
-        return error;
-}