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-rw-r--r--fs/ext4/namei.c38
1 files changed, 16 insertions, 22 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 6d2c1b897fc7..17a17e10dd60 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1292,9 +1292,6 @@ errout:
1292 * add_dirent_to_buf will attempt search the directory block for 1292 * add_dirent_to_buf will attempt search the directory block for
1293 * space. It will return -ENOSPC if no space is available, and -EIO 1293 * space. It will return -ENOSPC if no space is available, and -EIO
1294 * and -EEXIST if directory entry already exists. 1294 * and -EEXIST if directory entry already exists.
1295 *
1296 * NOTE! bh is NOT released in the case where ENOSPC is returned. In
1297 * all other cases bh is released.
1298 */ 1295 */
1299static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry, 1296static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
1300 struct inode *inode, struct ext4_dir_entry_2 *de, 1297 struct inode *inode, struct ext4_dir_entry_2 *de,
@@ -1315,14 +1312,10 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
1315 top = bh->b_data + blocksize - reclen; 1312 top = bh->b_data + blocksize - reclen;
1316 while ((char *) de <= top) { 1313 while ((char *) de <= top) {
1317 if (!ext4_check_dir_entry("ext4_add_entry", dir, de, 1314 if (!ext4_check_dir_entry("ext4_add_entry", dir, de,
1318 bh, offset)) { 1315 bh, offset))
1319 brelse(bh);
1320 return -EIO; 1316 return -EIO;
1321 } 1317 if (ext4_match(namelen, name, de))
1322 if (ext4_match(namelen, name, de)) {
1323 brelse(bh);
1324 return -EEXIST; 1318 return -EEXIST;
1325 }
1326 nlen = EXT4_DIR_REC_LEN(de->name_len); 1319 nlen = EXT4_DIR_REC_LEN(de->name_len);
1327 rlen = ext4_rec_len_from_disk(de->rec_len, blocksize); 1320 rlen = ext4_rec_len_from_disk(de->rec_len, blocksize);
1328 if ((de->inode? rlen - nlen: rlen) >= reclen) 1321 if ((de->inode? rlen - nlen: rlen) >= reclen)
@@ -1337,7 +1330,6 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
1337 err = ext4_journal_get_write_access(handle, bh); 1330 err = ext4_journal_get_write_access(handle, bh);
1338 if (err) { 1331 if (err) {
1339 ext4_std_error(dir->i_sb, err); 1332 ext4_std_error(dir->i_sb, err);
1340 brelse(bh);
1341 return err; 1333 return err;
1342 } 1334 }
1343 1335
@@ -1377,7 +1369,6 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
1377 err = ext4_handle_dirty_metadata(handle, dir, bh); 1369 err = ext4_handle_dirty_metadata(handle, dir, bh);
1378 if (err) 1370 if (err)
1379 ext4_std_error(dir->i_sb, err); 1371 ext4_std_error(dir->i_sb, err);
1380 brelse(bh);
1381 return 0; 1372 return 0;
1382} 1373}
1383 1374
@@ -1471,7 +1462,9 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
1471 if (!(de)) 1462 if (!(de))
1472 return retval; 1463 return retval;
1473 1464
1474 return add_dirent_to_buf(handle, dentry, inode, de, bh); 1465 retval = add_dirent_to_buf(handle, dentry, inode, de, bh);
1466 brelse(bh);
1467 return retval;
1475} 1468}
1476 1469
1477/* 1470/*
@@ -1514,8 +1507,10 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
1514 if(!bh) 1507 if(!bh)
1515 return retval; 1508 return retval;
1516 retval = add_dirent_to_buf(handle, dentry, inode, NULL, bh); 1509 retval = add_dirent_to_buf(handle, dentry, inode, NULL, bh);
1517 if (retval != -ENOSPC) 1510 if (retval != -ENOSPC) {
1511 brelse(bh);
1518 return retval; 1512 return retval;
1513 }
1519 1514
1520 if (blocks == 1 && !dx_fallback && 1515 if (blocks == 1 && !dx_fallback &&
1521 EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_DIR_INDEX)) 1516 EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_DIR_INDEX))
@@ -1528,7 +1523,9 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
1528 de = (struct ext4_dir_entry_2 *) bh->b_data; 1523 de = (struct ext4_dir_entry_2 *) bh->b_data;
1529 de->inode = 0; 1524 de->inode = 0;
1530 de->rec_len = ext4_rec_len_to_disk(blocksize, blocksize); 1525 de->rec_len = ext4_rec_len_to_disk(blocksize, blocksize);
1531 return add_dirent_to_buf(handle, dentry, inode, de, bh); 1526 retval = add_dirent_to_buf(handle, dentry, inode, de, bh);
1527 brelse(bh);
1528 return retval;
1532} 1529}
1533 1530
1534/* 1531/*
@@ -1561,10 +1558,8 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
1561 goto journal_error; 1558 goto journal_error;
1562 1559
1563 err = add_dirent_to_buf(handle, dentry, inode, NULL, bh); 1560 err = add_dirent_to_buf(handle, dentry, inode, NULL, bh);
1564 if (err != -ENOSPC) { 1561 if (err != -ENOSPC)
1565 bh = NULL;
1566 goto cleanup; 1562 goto cleanup;
1567 }
1568 1563
1569 /* Block full, should compress but for now just split */ 1564 /* Block full, should compress but for now just split */
1570 dxtrace(printk(KERN_DEBUG "using %u of %u node entries\n", 1565 dxtrace(printk(KERN_DEBUG "using %u of %u node entries\n",
@@ -1657,7 +1652,6 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
1657 if (!de) 1652 if (!de)
1658 goto cleanup; 1653 goto cleanup;
1659 err = add_dirent_to_buf(handle, dentry, inode, de, bh); 1654 err = add_dirent_to_buf(handle, dentry, inode, de, bh);
1660 bh = NULL;
1661 goto cleanup; 1655 goto cleanup;
1662 1656
1663journal_error: 1657journal_error:
@@ -1775,7 +1769,7 @@ static int ext4_create(struct inode *dir, struct dentry *dentry, int mode,
1775retry: 1769retry:
1776 handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) + 1770 handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
1777 EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 + 1771 EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
1778 2*EXT4_QUOTA_INIT_BLOCKS(dir->i_sb)); 1772 EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
1779 if (IS_ERR(handle)) 1773 if (IS_ERR(handle))
1780 return PTR_ERR(handle); 1774 return PTR_ERR(handle);
1781 1775
@@ -1809,7 +1803,7 @@ static int ext4_mknod(struct inode *dir, struct dentry *dentry,
1809retry: 1803retry:
1810 handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) + 1804 handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
1811 EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 + 1805 EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
1812 2*EXT4_QUOTA_INIT_BLOCKS(dir->i_sb)); 1806 EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
1813 if (IS_ERR(handle)) 1807 if (IS_ERR(handle))
1814 return PTR_ERR(handle); 1808 return PTR_ERR(handle);
1815 1809
@@ -1846,7 +1840,7 @@ static int ext4_mkdir(struct inode *dir, struct dentry *dentry, int mode)
1846retry: 1840retry:
1847 handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) + 1841 handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
1848 EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 + 1842 EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
1849 2*EXT4_QUOTA_INIT_BLOCKS(dir->i_sb)); 1843 EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
1850 if (IS_ERR(handle)) 1844 if (IS_ERR(handle))
1851 return PTR_ERR(handle); 1845 return PTR_ERR(handle);
1852 1846
@@ -2259,7 +2253,7 @@ static int ext4_symlink(struct inode *dir,
2259retry: 2253retry:
2260 handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) + 2254 handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
2261 EXT4_INDEX_EXTRA_TRANS_BLOCKS + 5 + 2255 EXT4_INDEX_EXTRA_TRANS_BLOCKS + 5 +
2262 2*EXT4_QUOTA_INIT_BLOCKS(dir->i_sb)); 2256 EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
2263 if (IS_ERR(handle)) 2257 if (IS_ERR(handle))
2264 return PTR_ERR(handle); 2258 return PTR_ERR(handle);
2265 2259