4 #include <linux/malloc.h>
5 #include <linux/vmalloc.h>
10 #define MIN(a,b) (((a)<(b)) ? (a): (b))
11 #define MAX(a,b) (((a)>(b)) ? (a): (b))
16 /* global variables */
17 extern int obd_debug_level;
18 extern int obd_print_entry;
21 #define D_PSDEV 1 /* debug information from psdev.c */
26 #define D_WARNING 32 /* misc warnings */
27 #define D_EXT2 64 /* anything from ext2_debug */
28 #define D_MALLOC 128 /* print malloc, free information */
29 #define D_CACHE 256 /* cache-related items */
30 #define D_INFO 512 /* general information, especially from interface.c */
31 #define D_IOCTL 1024 /* ioctl related information */
32 #define D_BLOCKS 2048 /* ext2 block allocation */
33 #define D_RPC 4096 /* ext2 block allocation */
36 #define CDEBUG(mask, format, a...) \
38 if (obd_debug_level & mask) { \
39 printk("(%s,l. %d): ", __FUNCTION__, __LINE__); \
40 printk(format, ## a); } \
44 if (obd_print_entry) \
45 printk("Process %d entered %s\n", current->pid, __FUNCTION__)
48 if (obd_print_entry) \
49 printk("Process %d leaving %s [%d]\n", current->pid, __FUNCTION__, __LINE__)
51 #else /* EXT2_OBD_DEBUG */
57 #endif /* EXT2_OBD_DEBUG */
60 #define CMD(cmd) (( cmd == READ ) ? "read" : "write")
62 /* Inode common information printed out */
63 #define ICDEBUG(inode) { \
64 printk("]]%s line %d[[ ino %ld, blocks %ld, size %Ld, atm %ld, ctm %ld, mtm %ld, mode %o, uid %d, gid %d\n", \
65 __FUNCTION__ , __LINE__, \
66 inode->i_ino, inode->i_blocks, inode->i_size,\
67 inode->i_atime, inode->i_ctime, inode->i_mtime,\
68 inode->i_mode, inode->i_uid, inode->i_gid);\
71 /* Ext2 inode information */
72 #define EXDEBUG(inode) { \
74 printk("data: 0x%08x 0x%08x 0x%08x 0x%08x\n",\
75 inode->u.ext2_i.i_data[0], inode->u.ext2_i.i_data[1],\
76 inode->u.ext2_i.i_data[2], inode->u.ext2_i.i_data[3]);\
79 /* OBDFS inode information */
80 /* Should print these with oi_flags and oi_list.prev, next instead of i_data */
81 #define OIDEBUG(inode) { \
83 printk("oinfo: flags 0x%08x next 0x%08x prev 0x%08x\n",\
84 inode->u.ext2_i.i_data[0], inode->u.ext2_i.i_data[1],\
85 inode->u.ext2_i.i_data[2]);\
88 #define ODEBUG(obdo) { \
89 printk("]]%s line %d[[ id %ld, atm %ld, mtm %ld, ctm %ld, size %ld, blocks %ld\n",\
90 __FUNCTION__ , __LINE__, \
91 (long)(obdo)->o_id, (long)(obdo)->o_atime,\
92 (long)(obdo)->o_mtime, (long)(obdo)->o_ctime,\
93 (long)(obdo)->o_size, (long)(obdo)->o_blocks);\
94 printk("]]%s line %d[[ mode %o, uid %d, gid %d, flg 0x%0x, obdflg 0x%0x, nlnk %d, valid 0x%0x\n", \
95 __FUNCTION__ , __LINE__, \
96 (obdo)->o_mode, (obdo)->o_uid, (obdo)->o_gid,\
97 (obdo)->o_flags, (obdo)->o_obdflags, (obdo)->o_nlink,\
102 #define PDEBUG(page,cmd) {if (page){\
103 char *uptodate = (Page_Uptodate(page)) ? "yes" : "no";\
104 char *locked = (PageLocked(page)) ? "yes" : "no";\
105 int count = page->count.counter;\
106 long index = page->index;\
108 CDEBUG(D_IOCTL, " ** %s, cmd: %s, off %ld, uptodate: %s, "\
109 "locked: %s, cnt %d page %p pages %ld** \n", __FUNCTION__,\
110 cmd, index, uptodate, locked, count, page, (!page->mapping) ? -1 : page->mapping->nrpages);\
111 } else { CDEBUG(D_IOCTL, "** %s, no page\n", __FUNCTION__); }}
114 #define OBD_ALLOC(ptr, cast, size) \
116 if (size <= 4096) { \
117 ptr = (cast)kmalloc((unsigned long) size, GFP_KERNEL); \
118 CDEBUG(D_MALLOC, "kmalloced: %x at %x.\n", \
119 (int) size, (int) ptr); \
121 ptr = (cast)vmalloc((unsigned long) size); \
122 CDEBUG(D_MALLOC, "vmalloced: %x at %x.\n", \
123 (int) size, (int) ptr); \
126 printk("kernel malloc returns 0 at %s:%d\n", \
127 __FILE__, __LINE__); \
129 memset(ptr, 0, size); \
132 #define OBD_FREE(ptr,size) \
134 if (size <= 4096) { \
135 kfree_s((ptr), (size)); \
136 CDEBUG(D_MALLOC, "kfreed: %x at %x.\n", \
137 (int) size, (int) ptr); \
140 CDEBUG(D_MALLOC, "vfreed: %x at %x.\n", \
141 (int) size, (int) ptr); \
146 static inline struct page *addr_to_page(char *buf)
148 unsigned long addr = (unsigned long)buf;
149 unsigned long map_nr;
151 #ifdef CONFIG_DISCONTIGMEM
152 if (addr == 0) return;
154 map_nr = MAP_NR(addr);
155 if (map_nr < max_mapnr)
156 return mem_map + map_nr;