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-rw-r--r--fs/ext4/super.c48
1 files changed, 15 insertions, 33 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index ceebaf853beb..6da193564e43 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1305,20 +1305,20 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args)
1305 ext4_msg(sb, KERN_ERR, 1305 ext4_msg(sb, KERN_ERR,
1306 "Cannot change journaled " 1306 "Cannot change journaled "
1307 "quota options when quota turned on"); 1307 "quota options when quota turned on");
1308 return 0; 1308 return -1;
1309 } 1309 }
1310 qname = match_strdup(args); 1310 qname = match_strdup(args);
1311 if (!qname) { 1311 if (!qname) {
1312 ext4_msg(sb, KERN_ERR, 1312 ext4_msg(sb, KERN_ERR,
1313 "Not enough memory for storing quotafile name"); 1313 "Not enough memory for storing quotafile name");
1314 return 0; 1314 return -1;
1315 } 1315 }
1316 if (sbi->s_qf_names[qtype] && 1316 if (sbi->s_qf_names[qtype] &&
1317 strcmp(sbi->s_qf_names[qtype], qname)) { 1317 strcmp(sbi->s_qf_names[qtype], qname)) {
1318 ext4_msg(sb, KERN_ERR, 1318 ext4_msg(sb, KERN_ERR,
1319 "%s quota file already specified", QTYPE2NAME(qtype)); 1319 "%s quota file already specified", QTYPE2NAME(qtype));
1320 kfree(qname); 1320 kfree(qname);
1321 return 0; 1321 return -1;
1322 } 1322 }
1323 sbi->s_qf_names[qtype] = qname; 1323 sbi->s_qf_names[qtype] = qname;
1324 if (strchr(sbi->s_qf_names[qtype], '/')) { 1324 if (strchr(sbi->s_qf_names[qtype], '/')) {
@@ -1326,7 +1326,7 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args)
1326 "quotafile must be on filesystem root"); 1326 "quotafile must be on filesystem root");
1327 kfree(sbi->s_qf_names[qtype]); 1327 kfree(sbi->s_qf_names[qtype]);
1328 sbi->s_qf_names[qtype] = NULL; 1328 sbi->s_qf_names[qtype] = NULL;
1329 return 0; 1329 return -1;
1330 } 1330 }
1331 set_opt(sb, QUOTA); 1331 set_opt(sb, QUOTA);
1332 return 1; 1332 return 1;
@@ -1341,7 +1341,7 @@ static int clear_qf_name(struct super_block *sb, int qtype)
1341 sbi->s_qf_names[qtype]) { 1341 sbi->s_qf_names[qtype]) {
1342 ext4_msg(sb, KERN_ERR, "Cannot change journaled quota options" 1342 ext4_msg(sb, KERN_ERR, "Cannot change journaled quota options"
1343 " when quota turned on"); 1343 " when quota turned on");
1344 return 0; 1344 return -1;
1345 } 1345 }
1346 /* 1346 /*
1347 * The space will be released later when all options are confirmed 1347 * The space will be released later when all options are confirmed
@@ -1450,6 +1450,16 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token,
1450 const struct mount_opts *m; 1450 const struct mount_opts *m;
1451 int arg = 0; 1451 int arg = 0;
1452 1452
1453#ifdef CONFIG_QUOTA
1454 if (token == Opt_usrjquota)
1455 return set_qf_name(sb, USRQUOTA, &args[0]);
1456 else if (token == Opt_grpjquota)
1457 return set_qf_name(sb, GRPQUOTA, &args[0]);
1458 else if (token == Opt_offusrjquota)
1459 return clear_qf_name(sb, USRQUOTA);
1460 else if (token == Opt_offgrpjquota)
1461 return clear_qf_name(sb, GRPQUOTA);
1462#endif
1453 if (args->from && match_int(args, &arg)) 1463 if (args->from && match_int(args, &arg))
1454 return -1; 1464 return -1;
1455 switch (token) { 1465 switch (token) {
@@ -1549,18 +1559,6 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token,
1549 sbi->s_mount_opt |= m->mount_opt; 1559 sbi->s_mount_opt |= m->mount_opt;
1550 } 1560 }
1551#ifdef CONFIG_QUOTA 1561#ifdef CONFIG_QUOTA
1552 } else if (token == Opt_usrjquota) {
1553 if (!set_qf_name(sb, USRQUOTA, &args[0]))
1554 return -1;
1555 } else if (token == Opt_grpjquota) {
1556 if (!set_qf_name(sb, GRPQUOTA, &args[0]))
1557 return -1;
1558 } else if (token == Opt_offusrjquota) {
1559 if (!clear_qf_name(sb, USRQUOTA))
1560 return -1;
1561 } else if (token == Opt_offgrpjquota) {
1562 if (!clear_qf_name(sb, GRPQUOTA))
1563 return -1;
1564 } else if (m->flags & MOPT_QFMT) { 1562 } else if (m->flags & MOPT_QFMT) {
1565 if (sb_any_quota_loaded(sb) && 1563 if (sb_any_quota_loaded(sb) &&
1566 sbi->s_jquota_fmt != m->mount_opt) { 1564 sbi->s_jquota_fmt != m->mount_opt) {
@@ -2366,18 +2364,6 @@ static ssize_t lifetime_write_kbytes_show(struct ext4_attr *a,
2366 EXT4_SB(sb)->s_sectors_written_start) >> 1))); 2364 EXT4_SB(sb)->s_sectors_written_start) >> 1)));
2367} 2365}
2368 2366
2369static ssize_t extent_cache_hits_show(struct ext4_attr *a,
2370 struct ext4_sb_info *sbi, char *buf)
2371{
2372 return snprintf(buf, PAGE_SIZE, "%lu\n", sbi->extent_cache_hits);
2373}
2374
2375static ssize_t extent_cache_misses_show(struct ext4_attr *a,
2376 struct ext4_sb_info *sbi, char *buf)
2377{
2378 return snprintf(buf, PAGE_SIZE, "%lu\n", sbi->extent_cache_misses);
2379}
2380
2381static ssize_t inode_readahead_blks_store(struct ext4_attr *a, 2367static ssize_t inode_readahead_blks_store(struct ext4_attr *a,
2382 struct ext4_sb_info *sbi, 2368 struct ext4_sb_info *sbi,
2383 const char *buf, size_t count) 2369 const char *buf, size_t count)
@@ -2435,8 +2421,6 @@ static struct ext4_attr ext4_attr_##name = __ATTR(name, mode, show, store)
2435EXT4_RO_ATTR(delayed_allocation_blocks); 2421EXT4_RO_ATTR(delayed_allocation_blocks);
2436EXT4_RO_ATTR(session_write_kbytes); 2422EXT4_RO_ATTR(session_write_kbytes);
2437EXT4_RO_ATTR(lifetime_write_kbytes); 2423EXT4_RO_ATTR(lifetime_write_kbytes);
2438EXT4_RO_ATTR(extent_cache_hits);
2439EXT4_RO_ATTR(extent_cache_misses);
2440EXT4_ATTR_OFFSET(inode_readahead_blks, 0644, sbi_ui_show, 2424EXT4_ATTR_OFFSET(inode_readahead_blks, 0644, sbi_ui_show,
2441 inode_readahead_blks_store, s_inode_readahead_blks); 2425 inode_readahead_blks_store, s_inode_readahead_blks);
2442EXT4_RW_ATTR_SBI_UI(inode_goal, s_inode_goal); 2426EXT4_RW_ATTR_SBI_UI(inode_goal, s_inode_goal);
@@ -2452,8 +2436,6 @@ static struct attribute *ext4_attrs[] = {
2452 ATTR_LIST(delayed_allocation_blocks), 2436 ATTR_LIST(delayed_allocation_blocks),
2453 ATTR_LIST(session_write_kbytes), 2437 ATTR_LIST(session_write_kbytes),
2454 ATTR_LIST(lifetime_write_kbytes), 2438 ATTR_LIST(lifetime_write_kbytes),
2455 ATTR_LIST(extent_cache_hits),
2456 ATTR_LIST(extent_cache_misses),
2457 ATTR_LIST(inode_readahead_blks), 2439 ATTR_LIST(inode_readahead_blks),
2458 ATTR_LIST(inode_goal), 2440 ATTR_LIST(inode_goal),
2459 ATTR_LIST(mb_stats), 2441 ATTR_LIST(mb_stats),