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[fs/lustre-release.git] / lustre / include / linux / obd_support.h
index a37aa93..b8202c3 100644 (file)
-
 #ifndef _OBD_SUPPORT
 #define _OBD_SUPPORT
-#include <linux/malloc.h>
-#include <linux/vmalloc.h>
-
-#define EXT2_OBD_DEBUG
+/*
+ * Copyright (C) 2001  Cluster File Systems, Inc.
+ *
+ * This code is issued under the GNU General Public License.
+ * See the file COPYING in this distribution
+ */
 
+#include <linux/autoconf.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
 
 #define MIN(a,b) (((a)<(b)) ? (a): (b))
 #define MAX(a,b) (((a)>(b)) ? (a): (b))
 
+#define obd_unlock_page(page)   do {    if (PageLocked(page)) { \
+                        UnlockPage(page);\
+                } else {\
+                        printk("file %s, line %d: expecting locked page\n",\
+                               __FILE__, __LINE__); \
+                }                       \
+} while(0)
+
 /*
  * Debug code
  */
 /* global variables */
 extern int obd_debug_level;
 extern int obd_print_entry;
+extern int obd_inodes;
+extern int obd_pages;
+extern long obd_memory;
 
-/* debugging masks */
-#define D_PSDEV       1 /* debug information from psdev.c */
-#define D_INODE       2
-#define D_SUPER       4
-#define D_SNAP        8
-#define D_UNUSED4    16
-#define D_WARNING    32 /* misc warnings */
-#define D_EXT2       64 /* anything from ext2_debug */
-#define D_MALLOC    128 /* print malloc, free information */
-#define D_CACHE     256 /* cache-related items */
-#define D_INFO      512 /* general information, especially from interface.c */
-#define D_IOCTL    1024 /* ioctl related information */
-#define D_BLOCKS   2048 /* ext2 block allocation */
-#define D_RPC      4096 /* ext2 block allocation */
-#ifdef EXT2_OBD_DEBUG
-#define CDEBUG(mask, format, a...)                                     \
-        do {                                                           \
-       if (obd_debug_level & mask) {                                   \
-               printk("(%s,l. %d): ",  __FUNCTION__, __LINE__);        \
-               printk(format, ## a); }                                 \
-       } while (0)
-
-#define ENTRY                                                                \
-        if (obd_print_entry)                                                 \
-                printk("Process %d entered %s\n", current->pid, __FUNCTION__)
-
-#define EXIT                                                                 \
-        if (obd_print_entry)                                                 \
-                printk("Process %d leaving %s [%d]\n", current->pid, __FUNCTION__, __LINE__)
-
-#else /* EXT2_OBD_DEBUG */
+#define EXT2_OBD_DEBUG
 
-#       define CDEBUG ;
-#       define ENTRY ;
-#       define EXIT ;
+#ifdef EXT2_OBD_DEBUG
+#define CMD(cmd) (( cmd == READ ) ? "read" : "write")
 
-#endif /* EXT2_OBD_DEBUG */
+/* debugging masks */
+#define D_PSDEV   0x001 /* debug information from psdev.c */
+#define D_INODE   0x002
+#define D_SUPER   0x004
+#define D_SNAP    0x008
+#define D_UNUSED4 0x010
+#define D_WARNING 0x020 /* misc warnings */
+#define D_EXT2    0x040 /* anything from ext2_debug */
+#define D_MALLOC  0x080 /* print malloc, free information */
+#define D_CACHE   0x100 /* cache-related items */
+#define D_INFO    0x200 /* general information, especially from interface.c */
+#define D_IOCTL   0x400 /* ioctl related information */
+#define D_BLOCKS  0x800 /* ext2 block allocation */
+#define D_NET    0x1000 /* network communications */
+#define D_PUNCH  0x2000
+#define D_BUFFS  0x4000 /* print network buffers */
+#define CDEBUG(mask, format, a...)                                      \
+        do {                                                            \
+        if (obd_debug_level & mask) {                                   \
+                printk("(%s:%d):", __FUNCTION__, __LINE__);             \
+                printk(format, ## a); }                                 \
+        } while (0)
 
+#define ENTRY if (obd_print_entry)                                      \
+        printk(KERN_INFO "Process %d entered %s\n", current->pid, __FUNCTION__)
 
-#define CMD(cmd) (( cmd == READ ) ? "read" : "write")
+#define EXIT if (obd_print_entry)                                       \
+        printk(KERN_INFO "Process %d leaving %s [%d]\n", current->pid,  \
+               __FUNCTION__, __LINE__)
 
 /* Inode common information printed out (used by obdfs and ext2obd inodes) */
-#define ICDEBUG(inode) { \
-       printk("]]%s line %d[[ ino %ld, atm %ld, mtm %ld, ctm %ld, "\
-              "size %Ld, blocks %ld\n", __FUNCTION__ , __LINE__,\
-              inode->i_ino, inode->i_atime, inode->i_mtime, inode->i_ctime,\
-              inode->i_size, inode->i_blocks);\
-       printk("]]%s line %d[[ mode %o, uid %d, gid %d, nlnk %d\n",\
-              __FUNCTION__, __LINE__, inode->i_mode, inode->i_uid,\
-              inode->i_gid, inode->i_nlink);\
+#define ICDEBUG(inode) {                                                \
+        CDEBUG(D_INFO,                                                  \
+               "ino %ld, atm %ld, mtm %ld, ctm %ld, size %Ld, blocks %ld\n",\
+               inode->i_ino, inode->i_atime, inode->i_mtime, inode->i_ctime,\
+               inode->i_size, inode->i_blocks);                         \
+        CDEBUG(D_INFO, "mode %o, uid %d, gid %d, nlnk %d, count %d\n",  \
+               inode->i_mode, inode->i_uid, inode->i_gid, inode->i_nlink,\
+               atomic_read(&inode->i_count));                                         \
 }
 
 /* Ext2 inode information */
-#define EXDEBUG(inode) { \
-       ICDEBUG(inode);\
-       printk("ext2 blocks: %d %d %d %d %d %d %d %d\n",\
-              inode->u.ext2_i.i_data[0], inode->u.ext2_i.i_data[1],\
-              inode->u.ext2_i.i_data[2], inode->u.ext2_i.i_data[3],\
-              inode->u.ext2_i.i_data[4], inode->u.ext2_i.i_data[5],\
-              inode->u.ext2_i.i_data[6], inode->u.ext2_i.i_data[7]);\
+#define EXDEBUG(inode) {                                                \
+        ICDEBUG(inode);                                                 \
+        CDEBUG(D_INFO, "ext2 blocks: %d %d %d %d %d %d %d %d\n",        \
+               inode->u.ext2_i.i_data[0], inode->u.ext2_i.i_data[1],    \
+               inode->u.ext2_i.i_data[2], inode->u.ext2_i.i_data[3],    \
+               inode->u.ext2_i.i_data[4], inode->u.ext2_i.i_data[5],    \
+               inode->u.ext2_i.i_data[6], inode->u.ext2_i.i_data[7]);   \
 }
 
 /* OBDFS inode information */
-#define OIDEBUG(inode) { \
-       ICDEBUG(inode);\
-       printk("oinfo: flags 0x%08x\n", OBDFS_INFO(inode)->oi_flags);\
-       obdfs_print_plist(inode);\
+#define OIDEBUG(inode) {                                                \
+        ICDEBUG(inode);                                                 \
+        CDEBUG(D_INFO,"oinfo: flags 0x%08x\n", obdfs_i2info(inode)->oi_flags);\
+        /* obdfs_print_plist(inode); */                                 \
 }
 
-#define ODEBUG(obdo) { \
-       printk("]]%s line %d[[  id %ld, atm %ld, mtm %ld, ctm %ld, "\
-              "size %ld, blocks %ld\n", __FUNCTION__ , __LINE__,\
-              (long)(obdo)->o_id, (long)(obdo)->o_atime,\
-              (long)(obdo)->o_mtime, (long)(obdo)->o_ctime,\
-              (long)(obdo)->o_size, (long)(obdo)->o_blocks);\
-       printk("]]%s line %d[[  mode %o, uid %d, gid %d, flg 0x%0x, "\
-              "obdflg 0x%0x, nlnk %d, valid 0x%0x\n", __FUNCTION__ , __LINE__,\
-              (obdo)->o_mode, (obdo)->o_uid, (obdo)->o_gid, (obdo)->o_flags,\
-              (obdo)->o_obdflags, (obdo)->o_nlink, (obdo)->o_valid);\
+#define ODEBUG(obdo) {                                                  \
+        CDEBUG(D_INFO, "id %ld, atm %ld, mtm %ld, ctm %ld, "            \
+               "size %ld, blocks %ld\n",                                \
+               (long)(obdo)->o_id, (long)(obdo)->o_atime,               \
+               (long)(obdo)->o_mtime, (long)(obdo)->o_ctime,            \
+               (long)(obdo)->o_size, (long)(obdo)->o_blocks);           \
+        CDEBUG(D_INFO, " mode %o, uid %d, gid %d, flg 0x%0x, "          \
+               "obdflg 0x%0x, nlnk %d, valid 0x%0x\n",                  \
+               (obdo)->o_mode, (obdo)->o_uid, (obdo)->o_gid, (obdo)->o_flags,\
+               (obdo)->o_obdflags, (obdo)->o_nlink, (obdo)->o_valid);   \
 }
 
 
-#define PDEBUG(page,cmd) { \
-       if (page){\
-               char *uptodate = (Page_Uptodate(page)) ? "yes" : "no";\
-               char *locked = (PageLocked(page)) ? "yes" : "no";\
-               int count = page->count.counter;\
-               long index = page->index;\
-               CDEBUG(D_IOCTL, " ** %s, cmd: %s, off %ld, uptodate: %s, "\
-                      "locked: %s, cnt %d page %p pages %ld** \n",\
-                      __FUNCTION__, cmd, index, uptodate, locked, count, \
-                      page, (!page->mapping) ? -1 : page->mapping->nrpages);\
-       } else \
-               CDEBUG(D_IOCTL, "** %s, no page\n", __FUNCTION__);\
+#define PDEBUG(page,msg) {                                              \
+        if (page){                                                      \
+                char *uptodate = (Page_Uptodate(page)) ? "upto" : "outof";\
+                char *locked = (PageLocked(page)) ? "" : "un";          \
+                char *buffer = page->buffers ? "buffer" : "";           \
+                int count = page_count(page);                           \
+                long index = page->index;                               \
+                CDEBUG(D_CACHE, "%s: ** off %ld, %sdate, %slocked, flag %ld,"\
+                       " cnt %d page 0x%p pages %ld virt %lx %s**\n",   \
+                       msg, index, uptodate, locked, page->flags, count,\
+                       page, page->mapping ? page->mapping->nrpages : -1,\
+                       page->virtual, buffer);                          \
+        } else                                                          \
+                CDEBUG(D_CACHE, "** %s: no page\n", msg);               \
 }
 
+#if 0
+#define iget(sb, ino) obd_iget(sb, ino)
+#define iput(sb, ino) obd_iput(sb, ino)
+
+static inline struct inode *obd_iget(struct super_block *sb, unsigned long ino)
+{
+        struct inode *inode;
+        
+        if ((inode = iget(sb, ino)) == NULL)
+                CDEBUG(D_INODE, "NULL in iget for %ld\n", ino);
+        else
+                obd_inodes++;
+        return inode;
+}
+
+static inline void obd_iput(struct inode *inode)
+{
+        if (inode == NULL)
+                CDEBUG(D_INODE, "NULL in iput\n");
+        else
+                obd_inodes--;
+}
+#endif
 
-#define OBD_ALLOC(ptr, cast, size)                                     \
-do {                                                                   \
-       if (size <= 4096) {                                             \
-               ptr = (cast)kmalloc((unsigned long) size, GFP_KERNEL); \
-                CDEBUG(D_MALLOC, "kmalloced: %x at %x.\n",             \
-                      (int) size, (int) ptr);                          \
-       } else {                                                        \
-               ptr = (cast)vmalloc((unsigned long) size);              \
-               CDEBUG(D_MALLOC, "vmalloced: %x at %x.\n",              \
-                      (int) size, (int) ptr);                          \
-       }                                                               \
-       if (ptr == 0) {                                                 \
-               printk("kernel malloc returns 0 at %s:%d\n",            \
-                      __FILE__, __LINE__);                             \
-       }                                                               \
-       memset(ptr, 0, size);                                           \
+#else /* EXT2_OBD_DEBUG */
+
+#define CDEBUG(mask, format, a...) {}
+#define ENTRY {}
+#define EXIT {}
+#define ODEBUG(obdo) {}
+#define EXDEBUG(inode) {}
+#define OIDEBUG(inode) {}
+#define PDEBUG(page, cmd) {}
+
+#endif /* EXT2_OBD_DEBUG */
+
+
+
+#define OBD_ALLOC(ptr, cast, size)                                      \
+do {                                                                    \
+        if (size <= 4096) {                                             \
+                ptr = (cast)kmalloc((unsigned long) size, GFP_KERNEL);  \
+                CDEBUG(D_MALLOC, "kmalloced: %d at %x.\n",              \
+                       (int) size, (int) ptr);                          \
+        } else {                                                        \
+                ptr = (cast)vmalloc((unsigned long) size);              \
+                CDEBUG(D_MALLOC, "vmalloced: %d at %x.\n",              \
+                       (int) size, (int) ptr);                          \
+        }                                                               \
+        if (ptr == 0) {                                                 \
+                printk("kernel malloc returns 0 at %s:%d\n",            \
+                       __FILE__, __LINE__);                             \
+        } else {                                                        \
+                memset(ptr, 0, size);                                   \
+                obd_memory += size;                                     \
+        }                                                               \
 } while (0)
 
-#define OBD_FREE(ptr,size)                             \
-do {                                                   \
-       if (size <= 4096) {                             \
-               kfree_s((ptr), (size));                 \
-               CDEBUG(D_MALLOC, "kfreed: %x at %x.\n", \
-                      (int) size, (int) ptr);          \
-       } else {                                        \
-               vfree((ptr));                           \
-               CDEBUG(D_MALLOC, "vfreed: %x at %x.\n", \
-                      (int) size, (int) ptr);          \
-       }                                               \
+#define OBD_FREE(ptr,size)                              \
+do {                                                    \
+        if (size <= 4096) {                             \
+                kfree((ptr));                   \
+                CDEBUG(D_MALLOC, "kfreed: %d at %x.\n", \
+                       (int) size, (int) ptr);          \
+        } else {                                        \
+                vfree((ptr));                           \
+                CDEBUG(D_MALLOC, "vfreed: %d at %x.\n", \
+                       (int) size, (int) ptr);          \
+        }                                               \
+        obd_memory -= size;                             \
 } while (0)
 
 
 
 #endif
+