+++ /dev/null
-Index: linux-2.6.12/fs/ext3/namei.c
-===================================================================
---- linux-2.6.12.orig/fs/ext3/namei.c
-+++ linux-2.6.12/fs/ext3/namei.c
-@@ -1600,11 +1600,17 @@ static int ext3_delete_entry (handle_t *
- static inline void ext3_inc_count(handle_t *handle, struct inode *inode)
- {
- inode->i_nlink++;
-+ if (is_dx(inode) && inode->i_nlink > 1) {
-+ /* limit is 16-bit i_links_count */
-+ if (inode->i_nlink >= EXT3_LINK_MAX || inode->i_nlink == 2)
-+ inode->i_nlink = 1;
-+ }
- }
-
- static inline void ext3_dec_count(handle_t *handle, struct inode *inode)
- {
-- inode->i_nlink--;
-+ if (!S_ISDIR(inode->i_mode) || inode->i_nlink > 2)
-+ inode->i_nlink--;
- }
-
- static int ext3_add_nondir(handle_t *handle,
-@@ -1703,7 +1709,7 @@ static int ext3_mkdir(struct inode * dir
- struct ext3_dir_entry_2 * de;
- int err, retries = 0;
-
-- if (dir->i_nlink >= EXT3_LINK_MAX)
-+ if (EXT3_DIR_LINK_MAX(dir))
- return -EMLINK;
-
- retry:
-@@ -1726,7 +1732,7 @@ retry:
- inode->i_size = EXT3_I(inode)->i_disksize = inode->i_sb->s_blocksize;
- dir_block = ext3_bread (handle, inode, 0, 1, &err);
- if (!dir_block) {
-- inode->i_nlink--; /* is this nlink == 0? */
-+ ext3_dec_count(handle, inode); /* is this nlink == 0? */
- ext3_mark_inode_dirty(handle, inode);
- iput (inode);
- goto out_stop;
-@@ -1758,7 +1764,7 @@ retry:
- iput (inode);
- goto out_stop;
- }
-- dir->i_nlink++;
-+ ext3_inc_count(handle, dir);
- ext3_update_dx_flag(dir);
- ext3_mark_inode_dirty(handle, dir);
- d_instantiate(dentry, inode);
-@@ -2023,10 +2029,10 @@ static int ext3_rmdir (struct inode * di
- retval = ext3_delete_entry(handle, dir, de, bh);
- if (retval)
- goto end_rmdir;
-- if (inode->i_nlink != 2)
-- ext3_warning (inode->i_sb, "ext3_rmdir",
-- "empty directory has nlink!=2 (%d)",
-- inode->i_nlink);
-+ if (!EXT3_DIR_LINK_EMPTY(inode))
-+ ext3_warning(inode->i_sb, "ext3_rmdir",
-+ "empty directory has too many links (%d)",
-+ inode->i_nlink);
- inode->i_version++;
- inode->i_nlink = 0;
- /* There's no need to set i_disksize: the fact that i_nlink is
-@@ -2036,7 +2042,7 @@ static int ext3_rmdir (struct inode * di
- ext3_orphan_add(handle, inode);
- inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
- ext3_mark_inode_dirty(handle, inode);
-- dir->i_nlink--;
-+ ext3_dec_count(handle, dir);
- ext3_update_dx_flag(dir);
- ext3_mark_inode_dirty(handle, dir);
-
-@@ -2087,7 +2093,7 @@ static int ext3_unlink(struct inode * di
- dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
- ext3_update_dx_flag(dir);
- ext3_mark_inode_dirty(handle, dir);
-- inode->i_nlink--;
-+ ext3_dec_count(handle, inode);
- if (!inode->i_nlink)
- ext3_orphan_add(handle, inode);
- inode->i_ctime = dir->i_ctime;
-@@ -2162,7 +2168,7 @@ static int ext3_link (struct dentry * ol
- struct inode *inode = old_dentry->d_inode;
- int err, retries = 0;
-
-- if (inode->i_nlink >= EXT3_LINK_MAX)
-+ if (EXT3_DIR_LINK_MAX(inode))
- return -EMLINK;
-
- retry:
-@@ -2249,8 +2255,8 @@ static int ext3_rename (struct inode * o
- if (le32_to_cpu(PARENT_INO(dir_bh->b_data)) != old_dir->i_ino)
- goto end_rename;
- retval = -EMLINK;
-- if (!new_inode && new_dir!=old_dir &&
-- new_dir->i_nlink >= EXT3_LINK_MAX)
-+ if (!new_inode && new_dir != old_dir &&
-+ EXT3_DIR_LINK_MAX(new_dir))
- goto end_rename;
- }
- if (!new_bh) {
-@@ -2307,7 +2313,7 @@ static int ext3_rename (struct inode * o
- }
-
- if (new_inode) {
-- new_inode->i_nlink--;
-+ ext3_dec_count(handle, new_inode);
- new_inode->i_ctime = CURRENT_TIME_SEC;
- }
- old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME_SEC;
-@@ -2318,11 +2324,13 @@ static int ext3_rename (struct inode * o
- PARENT_INO(dir_bh->b_data) = cpu_to_le32(new_dir->i_ino);
- BUFFER_TRACE(dir_bh, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, dir_bh);
-- old_dir->i_nlink--;
-+ ext3_dec_count(handle, old_dir);
- if (new_inode) {
-- new_inode->i_nlink--;
-+ /* checked empty_dir above, can't have another parent,
-+ * ext3_dec_count() won't work for many-linked dirs */
-+ new_inode->i_nlink = 0;
- } else {
-- new_dir->i_nlink++;
-+ ext3_inc_count(handle, new_dir);
- ext3_update_dx_flag(new_dir);
- ext3_mark_inode_dirty(handle, new_dir);
- }
-Index: linux-2.6.12/include/linux/ext3_fs.h
-===================================================================
---- linux-2.6.12.orig/include/linux/ext3_fs.h
-+++ linux-2.6.12/include/linux/ext3_fs.h
-@@ -78,7 +78,7 @@ struct statfs;
- /*
- * Maximal count of links to a file
- */
--#define EXT3_LINK_MAX 32000
-+#define EXT3_LINK_MAX 65000
-
- /*
- * Macro-instructions used to manage several block sizes
-@@ -539,6 +539,7 @@ static inline struct ext3_inode_info *EX
- #define EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
- #define EXT3_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
- #define EXT3_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
-+#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK 0x0020
-
- #define EXT3_FEATURE_INCOMPAT_COMPRESSION 0x0001
- #define EXT3_FEATURE_INCOMPAT_FILETYPE 0x0002
-@@ -552,6 +553,7 @@ static inline struct ext3_inode_info *EX
- EXT3_FEATURE_INCOMPAT_META_BG)
- #define EXT3_FEATURE_RO_COMPAT_SUPP (EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER| \
- EXT3_FEATURE_RO_COMPAT_LARGE_FILE| \
-+ EXT4_FEATURE_RO_COMPAT_DIR_NLINK| \
- EXT3_FEATURE_RO_COMPAT_BTREE_DIR)
-
- /*
git://git.whamcloud.com / fs / lustre-release.git / blobdiff