1 #ifndef _VX_VS_DLIMIT_H
2 #define _VX_VS_DLIMIT_H
5 #include "vserver/dlimit.h"
6 #include "vserver/debug.h"
9 #define get_dl_info(i) __get_dl_info(i,__FILE__,__LINE__)
11 static inline struct dl_info *__get_dl_info(struct dl_info *dli,
12 const char *_file, int _line)
16 vxlprintk(VXD_CBIT(dlim, 4), "get_dl_info(%p[#%d.%d])",
17 dli, dli?dli->dl_xid:0, dli?atomic_read(&dli->dl_usecnt):0,
19 atomic_inc(&dli->dl_usecnt);
24 #define free_dl_info(i) \
25 call_rcu(&i->dl_rcu, rcu_free_dl_info);
27 #define put_dl_info(i) __put_dl_info(i,__FILE__,__LINE__)
29 static inline void __put_dl_info(struct dl_info *dli,
30 const char *_file, int _line)
34 vxlprintk(VXD_CBIT(dlim, 4), "put_dl_info(%p[#%d.%d])",
35 dli, dli?dli->dl_xid:0, dli?atomic_read(&dli->dl_usecnt):0,
37 if (atomic_dec_and_test(&dli->dl_usecnt))
42 #define __dlimit_char(d) ((d)?'*':' ')
44 static inline int __dl_alloc_space(struct super_block *sb,
45 xid_t xid, dlsize_t nr, const char *file, int line)
47 struct dl_info *dli = NULL;
52 dli = locate_dl_info(sb, xid);
56 spin_lock(&dli->dl_lock);
57 ret = (dli->dl_space_used + nr > dli->dl_space_total);
59 dli->dl_space_used += nr;
60 spin_unlock(&dli->dl_lock);
63 vxlprintk(VXD_CBIT(dlim, 1),
64 "ALLOC (%p,#%d)%c %lld bytes (%d)",
65 sb, xid, __dlimit_char(dli), (long long)nr,
70 static inline void __dl_free_space(struct super_block *sb,
71 xid_t xid, dlsize_t nr, const char *_file, int _line)
73 struct dl_info *dli = NULL;
77 dli = locate_dl_info(sb, xid);
81 spin_lock(&dli->dl_lock);
82 if (dli->dl_space_used > nr)
83 dli->dl_space_used -= nr;
85 dli->dl_space_used = 0;
86 spin_unlock(&dli->dl_lock);
89 vxlprintk(VXD_CBIT(dlim, 1),
90 "FREE (%p,#%d)%c %lld bytes",
91 sb, xid, __dlimit_char(dli), (long long)nr,
95 static inline int __dl_alloc_inode(struct super_block *sb,
96 xid_t xid, const char *_file, int _line)
101 dli = locate_dl_info(sb, xid);
105 spin_lock(&dli->dl_lock);
106 ret = (dli->dl_inodes_used >= dli->dl_inodes_total);
108 dli->dl_inodes_used++;
111 vxwprintk("DLIMIT hit (%p,#%d), inode %d>=%d @ %s:%d",
113 dli->dl_inodes_used, dli->dl_inodes_total,
116 spin_unlock(&dli->dl_lock);
119 vxlprintk(VXD_CBIT(dlim, 0),
120 "ALLOC (%p,#%d)%c inode (%d)",
121 sb, xid, __dlimit_char(dli), ret, _file, _line);
125 static inline void __dl_free_inode(struct super_block *sb,
126 xid_t xid, const char *_file, int _line)
130 dli = locate_dl_info(sb, xid);
134 spin_lock(&dli->dl_lock);
135 if (dli->dl_inodes_used > 1)
136 dli->dl_inodes_used--;
138 dli->dl_inodes_used = 0;
139 spin_unlock(&dli->dl_lock);
142 vxlprintk(VXD_CBIT(dlim, 0),
143 "FREE (%p,#%d)%c inode",
144 sb, xid, __dlimit_char(dli), _file, _line);
147 static inline void __dl_adjust_block(struct super_block *sb, xid_t xid,
148 unsigned int *free_blocks, unsigned int *root_blocks,
149 const char *_file, int _line)
152 uint64_t broot, bfree;
154 dli = locate_dl_info(sb, xid);
158 spin_lock(&dli->dl_lock);
159 broot = (dli->dl_space_total -
160 (dli->dl_space_total >> 10) * dli->dl_nrlmult)
161 >> sb->s_blocksize_bits;
162 bfree = (dli->dl_space_total - dli->dl_space_used)
163 >> sb->s_blocksize_bits;
164 spin_unlock(&dli->dl_lock);
166 vxlprintk(VXD_CBIT(dlim, 2),
167 "ADJUST: %lld,%lld on %d,%d [mult=%d]",
168 (long long)bfree, (long long)broot,
169 *free_blocks, *root_blocks, dli->dl_nrlmult,
172 if (*free_blocks > bfree)
173 *free_blocks = bfree;
176 if (*root_blocks > broot)
177 *root_blocks = broot;
183 #define DLIMIT_ALLOC_BLOCK(sb, xid, nr) \
184 __dl_alloc_space(sb, xid, \
185 ((dlsize_t)(nr)) << (sb)->s_blocksize_bits, \
188 #define DLIMIT_FREE_BLOCK(sb, xid, nr) \
189 __dl_free_space(sb, xid, \
190 ((dlsize_t)(nr)) << (sb)->s_blocksize_bits, \
193 #define DLIMIT_ALLOC_INODE(sb, xid) \
194 __dl_alloc_inode(sb, xid, __FILE__, __LINE__ )
196 #define DLIMIT_FREE_INODE(sb, xid) \
197 __dl_free_inode(sb, xid, __FILE__, __LINE__ )
200 #define DLIMIT_ADJUST_BLOCK(sb, xid, fb, rb) \
201 __dl_adjust_block(sb, xid, fb, rb, __FILE__, __LINE__ )
205 #warning duplicate inclusion