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-rw-r--r--fs/dquot.c60
1 files changed, 54 insertions, 6 deletions
diff --git a/fs/dquot.c b/fs/dquot.c
index 0bcaf970bbb4..1346eebe74ce 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -889,7 +889,10 @@ static void print_warning(struct dquot *dquot, const int warntype)
889 char *msg = NULL; 889 char *msg = NULL;
890 struct tty_struct *tty; 890 struct tty_struct *tty;
891 891
892 if (!need_print_warning(dquot)) 892 if (warntype == QUOTA_NL_IHARDBELOW ||
893 warntype == QUOTA_NL_ISOFTBELOW ||
894 warntype == QUOTA_NL_BHARDBELOW ||
895 warntype == QUOTA_NL_BSOFTBELOW || !need_print_warning(dquot))
893 return; 896 return;
894 897
895 mutex_lock(&tty_mutex); 898 mutex_lock(&tty_mutex);
@@ -1097,6 +1100,35 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *war
1097 return QUOTA_OK; 1100 return QUOTA_OK;
1098} 1101}
1099 1102
1103static int info_idq_free(struct dquot *dquot, ulong inodes)
1104{
1105 if (test_bit(DQ_FAKE_B, &dquot->dq_flags) ||
1106 dquot->dq_dqb.dqb_curinodes <= dquot->dq_dqb.dqb_isoftlimit)
1107 return QUOTA_NL_NOWARN;
1108
1109 if (dquot->dq_dqb.dqb_curinodes - inodes <= dquot->dq_dqb.dqb_isoftlimit)
1110 return QUOTA_NL_ISOFTBELOW;
1111 if (dquot->dq_dqb.dqb_curinodes >= dquot->dq_dqb.dqb_ihardlimit &&
1112 dquot->dq_dqb.dqb_curinodes - inodes < dquot->dq_dqb.dqb_ihardlimit)
1113 return QUOTA_NL_IHARDBELOW;
1114 return QUOTA_NL_NOWARN;
1115}
1116
1117static int info_bdq_free(struct dquot *dquot, qsize_t space)
1118{
1119 if (test_bit(DQ_FAKE_B, &dquot->dq_flags) ||
1120 toqb(dquot->dq_dqb.dqb_curspace) <= dquot->dq_dqb.dqb_bsoftlimit)
1121 return QUOTA_NL_NOWARN;
1122
1123 if (toqb(dquot->dq_dqb.dqb_curspace - space) <=
1124 dquot->dq_dqb.dqb_bsoftlimit)
1125 return QUOTA_NL_BSOFTBELOW;
1126 if (toqb(dquot->dq_dqb.dqb_curspace) >= dquot->dq_dqb.dqb_bhardlimit &&
1127 toqb(dquot->dq_dqb.dqb_curspace - space) <
1128 dquot->dq_dqb.dqb_bhardlimit)
1129 return QUOTA_NL_BHARDBELOW;
1130 return QUOTA_NL_NOWARN;
1131}
1100/* 1132/*
1101 * Initialize quota pointers in inode 1133 * Initialize quota pointers in inode
1102 * Transaction must be started at entry 1134 * Transaction must be started at entry
@@ -1284,6 +1316,7 @@ warn_put_all:
1284int dquot_free_space(struct inode *inode, qsize_t number) 1316int dquot_free_space(struct inode *inode, qsize_t number)
1285{ 1317{
1286 unsigned int cnt; 1318 unsigned int cnt;
1319 char warntype[MAXQUOTAS];
1287 1320
1288 /* First test before acquiring mutex - solves deadlocks when we 1321 /* First test before acquiring mutex - solves deadlocks when we
1289 * re-enter the quota code and are already holding the mutex */ 1322 * re-enter the quota code and are already holding the mutex */
@@ -1292,6 +1325,7 @@ out_sub:
1292 inode_sub_bytes(inode, number); 1325 inode_sub_bytes(inode, number);
1293 return QUOTA_OK; 1326 return QUOTA_OK;
1294 } 1327 }
1328
1295 down_read(&sb_dqopt(inode->i_sb)->dqptr_sem); 1329 down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1296 /* Now recheck reliably when holding dqptr_sem */ 1330 /* Now recheck reliably when holding dqptr_sem */
1297 if (IS_NOQUOTA(inode)) { 1331 if (IS_NOQUOTA(inode)) {
@@ -1302,6 +1336,7 @@ out_sub:
1302 for (cnt = 0; cnt < MAXQUOTAS; cnt++) { 1336 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
1303 if (inode->i_dquot[cnt] == NODQUOT) 1337 if (inode->i_dquot[cnt] == NODQUOT)
1304 continue; 1338 continue;
1339 warntype[cnt] = info_bdq_free(inode->i_dquot[cnt], number);
1305 dquot_decr_space(inode->i_dquot[cnt], number); 1340 dquot_decr_space(inode->i_dquot[cnt], number);
1306 } 1341 }
1307 inode_sub_bytes(inode, number); 1342 inode_sub_bytes(inode, number);
@@ -1310,6 +1345,7 @@ out_sub:
1310 for (cnt = 0; cnt < MAXQUOTAS; cnt++) 1345 for (cnt = 0; cnt < MAXQUOTAS; cnt++)
1311 if (inode->i_dquot[cnt]) 1346 if (inode->i_dquot[cnt])
1312 mark_dquot_dirty(inode->i_dquot[cnt]); 1347 mark_dquot_dirty(inode->i_dquot[cnt]);
1348 flush_warnings(inode->i_dquot, warntype);
1313 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); 1349 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1314 return QUOTA_OK; 1350 return QUOTA_OK;
1315} 1351}
@@ -1320,11 +1356,13 @@ out_sub:
1320int dquot_free_inode(const struct inode *inode, unsigned long number) 1356int dquot_free_inode(const struct inode *inode, unsigned long number)
1321{ 1357{
1322 unsigned int cnt; 1358 unsigned int cnt;
1359 char warntype[MAXQUOTAS];
1323 1360
1324 /* First test before acquiring mutex - solves deadlocks when we 1361 /* First test before acquiring mutex - solves deadlocks when we
1325 * re-enter the quota code and are already holding the mutex */ 1362 * re-enter the quota code and are already holding the mutex */
1326 if (IS_NOQUOTA(inode)) 1363 if (IS_NOQUOTA(inode))
1327 return QUOTA_OK; 1364 return QUOTA_OK;
1365
1328 down_read(&sb_dqopt(inode->i_sb)->dqptr_sem); 1366 down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1329 /* Now recheck reliably when holding dqptr_sem */ 1367 /* Now recheck reliably when holding dqptr_sem */
1330 if (IS_NOQUOTA(inode)) { 1368 if (IS_NOQUOTA(inode)) {
@@ -1335,6 +1373,7 @@ int dquot_free_inode(const struct inode *inode, unsigned long number)
1335 for (cnt = 0; cnt < MAXQUOTAS; cnt++) { 1373 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
1336 if (inode->i_dquot[cnt] == NODQUOT) 1374 if (inode->i_dquot[cnt] == NODQUOT)
1337 continue; 1375 continue;
1376 warntype[cnt] = info_idq_free(inode->i_dquot[cnt], number);
1338 dquot_decr_inodes(inode->i_dquot[cnt], number); 1377 dquot_decr_inodes(inode->i_dquot[cnt], number);
1339 } 1378 }
1340 spin_unlock(&dq_data_lock); 1379 spin_unlock(&dq_data_lock);
@@ -1342,6 +1381,7 @@ int dquot_free_inode(const struct inode *inode, unsigned long number)
1342 for (cnt = 0; cnt < MAXQUOTAS; cnt++) 1381 for (cnt = 0; cnt < MAXQUOTAS; cnt++)
1343 if (inode->i_dquot[cnt]) 1382 if (inode->i_dquot[cnt])
1344 mark_dquot_dirty(inode->i_dquot[cnt]); 1383 mark_dquot_dirty(inode->i_dquot[cnt]);
1384 flush_warnings(inode->i_dquot, warntype);
1345 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); 1385 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1346 return QUOTA_OK; 1386 return QUOTA_OK;
1347} 1387}
@@ -1359,7 +1399,8 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
1359 struct dquot *transfer_to[MAXQUOTAS]; 1399 struct dquot *transfer_to[MAXQUOTAS];
1360 int cnt, ret = NO_QUOTA, chuid = (iattr->ia_valid & ATTR_UID) && inode->i_uid != iattr->ia_uid, 1400 int cnt, ret = NO_QUOTA, chuid = (iattr->ia_valid & ATTR_UID) && inode->i_uid != iattr->ia_uid,
1361 chgid = (iattr->ia_valid & ATTR_GID) && inode->i_gid != iattr->ia_gid; 1401 chgid = (iattr->ia_valid & ATTR_GID) && inode->i_gid != iattr->ia_gid;
1362 char warntype[MAXQUOTAS]; 1402 char warntype_to[MAXQUOTAS];
1403 char warntype_from_inodes[MAXQUOTAS], warntype_from_space[MAXQUOTAS];
1363 1404
1364 /* First test before acquiring mutex - solves deadlocks when we 1405 /* First test before acquiring mutex - solves deadlocks when we
1365 * re-enter the quota code and are already holding the mutex */ 1406 * re-enter the quota code and are already holding the mutex */
@@ -1368,7 +1409,7 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
1368 /* Clear the arrays */ 1409 /* Clear the arrays */
1369 for (cnt = 0; cnt < MAXQUOTAS; cnt++) { 1410 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
1370 transfer_to[cnt] = transfer_from[cnt] = NODQUOT; 1411 transfer_to[cnt] = transfer_from[cnt] = NODQUOT;
1371 warntype[cnt] = QUOTA_NL_NOWARN; 1412 warntype_to[cnt] = QUOTA_NL_NOWARN;
1372 } 1413 }
1373 down_write(&sb_dqopt(inode->i_sb)->dqptr_sem); 1414 down_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
1374 /* Now recheck reliably when holding dqptr_sem */ 1415 /* Now recheck reliably when holding dqptr_sem */
@@ -1400,8 +1441,9 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
1400 if (transfer_to[cnt] == NODQUOT) 1441 if (transfer_to[cnt] == NODQUOT)
1401 continue; 1442 continue;
1402 transfer_from[cnt] = inode->i_dquot[cnt]; 1443 transfer_from[cnt] = inode->i_dquot[cnt];
1403 if (check_idq(transfer_to[cnt], 1, warntype+cnt) == NO_QUOTA || 1444 if (check_idq(transfer_to[cnt], 1, warntype_to + cnt) ==
1404 check_bdq(transfer_to[cnt], space, 0, warntype+cnt) == NO_QUOTA) 1445 NO_QUOTA || check_bdq(transfer_to[cnt], space, 0,
1446 warntype_to + cnt) == NO_QUOTA)
1405 goto warn_put_all; 1447 goto warn_put_all;
1406 } 1448 }
1407 1449
@@ -1417,6 +1459,10 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
1417 1459
1418 /* Due to IO error we might not have transfer_from[] structure */ 1460 /* Due to IO error we might not have transfer_from[] structure */
1419 if (transfer_from[cnt]) { 1461 if (transfer_from[cnt]) {
1462 warntype_from_inodes[cnt] =
1463 info_idq_free(transfer_from[cnt], 1);
1464 warntype_from_space[cnt] =
1465 info_bdq_free(transfer_from[cnt], space);
1420 dquot_decr_inodes(transfer_from[cnt], 1); 1466 dquot_decr_inodes(transfer_from[cnt], 1);
1421 dquot_decr_space(transfer_from[cnt], space); 1467 dquot_decr_space(transfer_from[cnt], space);
1422 } 1468 }
@@ -1436,7 +1482,9 @@ warn_put_all:
1436 if (transfer_to[cnt]) 1482 if (transfer_to[cnt])
1437 mark_dquot_dirty(transfer_to[cnt]); 1483 mark_dquot_dirty(transfer_to[cnt]);
1438 } 1484 }
1439 flush_warnings(transfer_to, warntype); 1485 flush_warnings(transfer_to, warntype_to);
1486 flush_warnings(transfer_from, warntype_from_inodes);
1487 flush_warnings(transfer_from, warntype_from_space);
1440 1488
1441 for (cnt = 0; cnt < MAXQUOTAS; cnt++) { 1489 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
1442 if (ret == QUOTA_OK && transfer_from[cnt] != NODQUOT) 1490 if (ret == QUOTA_OK && transfer_from[cnt] != NODQUOT)