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[PATCH] r/o bind mounts: unlink: monitor i_nlink
When a filesystem decrements i_nlink to zero, it means that a write must be performed in order to drop the inode from the filesystem. We're shortly going to have keep filesystems from being remounted r/o between the time that this i_nlink decrement and that write occurs. So, add a little helper function to do the decrements. We'll tie into it in a bit to note when i_nlink hits zero. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
parent
aab520e2f6
commit
9a53c3a783
@ -332,7 +332,7 @@ static int usbfs_unlink (struct inode *dir, struct dentry *dentry)
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{
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struct inode *inode = dentry->d_inode;
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mutex_lock(&inode->i_mutex);
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dentry->d_inode->i_nlink--;
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drop_nlink(dentry->d_inode);
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dput(dentry);
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mutex_unlock(&inode->i_mutex);
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d_delete(dentry);
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@ -347,10 +347,11 @@ static int usbfs_rmdir(struct inode *dir, struct dentry *dentry)
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mutex_lock(&inode->i_mutex);
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dentry_unhash(dentry);
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if (usbfs_empty(dentry)) {
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dentry->d_inode->i_nlink -= 2;
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drop_nlink(dentry->d_inode);
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drop_nlink(dentry->d_inode);
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dput(dentry);
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inode->i_flags |= S_DEAD;
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dir->i_nlink--;
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drop_nlink(dir);
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error = 0;
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}
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mutex_unlock(&inode->i_mutex);
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@ -414,7 +414,7 @@ static int autofs_root_rmdir(struct inode *dir, struct dentry *dentry)
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dentry->d_time = (unsigned long)(struct autofs_dir_ent *)NULL;
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autofs_hash_delete(ent);
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dir->i_nlink--;
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drop_nlink(dir);
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d_drop(dentry);
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unlock_kernel();
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@ -676,7 +676,7 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
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dentry->d_inode->i_nlink = 0;
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if (dir->i_nlink)
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dir->i_nlink--;
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drop_nlink(dir);
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return 0;
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}
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@ -117,8 +117,7 @@ static int bfs_create(struct inode * dir, struct dentry * dentry, int mode,
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err = bfs_add_entry(dir, dentry->d_name.name, dentry->d_name.len, inode->i_ino);
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if (err) {
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inode->i_nlink--;
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mark_inode_dirty(inode);
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inode_dec_link_count(inode);
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iput(inode);
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unlock_kernel();
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return err;
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@ -196,9 +195,8 @@ static int bfs_unlink(struct inode * dir, struct dentry * dentry)
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mark_buffer_dirty(bh);
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dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
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mark_inode_dirty(dir);
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inode->i_nlink--;
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inode->i_ctime = dir->i_ctime;
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mark_inode_dirty(inode);
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inode_dec_link_count(inode);
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error = 0;
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out_brelse:
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@ -249,9 +247,8 @@ static int bfs_rename(struct inode * old_dir, struct dentry * old_dentry,
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old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME_SEC;
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mark_inode_dirty(old_dir);
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if (new_inode) {
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new_inode->i_nlink--;
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new_inode->i_ctime = CURRENT_TIME_SEC;
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mark_inode_dirty(new_inode);
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inode_dec_link_count(new_inode);
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}
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mark_buffer_dirty(old_bh);
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error = 0;
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@ -590,7 +590,7 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry)
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if (!rc) {
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if (direntry->d_inode)
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direntry->d_inode->i_nlink--;
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drop_nlink(direntry->d_inode);
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} else if (rc == -ENOENT) {
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d_drop(direntry);
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} else if (rc == -ETXTBSY) {
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@ -609,7 +609,7 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry)
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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CIFSSMBClose(xid, pTcon, netfid);
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if (direntry->d_inode)
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direntry->d_inode->i_nlink--;
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drop_nlink(direntry->d_inode);
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}
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} else if (rc == -EACCES) {
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/* try only if r/o attribute set in local lookup data? */
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@ -663,7 +663,7 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry)
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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if (!rc) {
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if (direntry->d_inode)
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direntry->d_inode->i_nlink--;
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drop_nlink(direntry->d_inode);
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} else if (rc == -ETXTBSY) {
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int oplock = FALSE;
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__u16 netfid;
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@ -684,7 +684,7 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry)
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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CIFSSMBClose(xid, pTcon, netfid);
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if (direntry->d_inode)
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direntry->d_inode->i_nlink--;
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drop_nlink(direntry->d_inode);
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}
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/* BB if rc = -ETXTBUSY goto the rename logic BB */
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}
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@ -816,7 +816,7 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry)
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cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
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if (!rc) {
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inode->i_nlink--;
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drop_nlink(inode);
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i_size_write(direntry->d_inode,0);
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direntry->d_inode->i_nlink = 0;
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}
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@ -367,7 +367,7 @@ int coda_unlink(struct inode *dir, struct dentry *de)
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}
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coda_dir_changed(dir, 0);
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de->d_inode->i_nlink--;
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drop_nlink(de->d_inode);
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unlock_kernel();
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return 0;
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@ -394,7 +394,7 @@ int coda_rmdir(struct inode *dir, struct dentry *de)
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}
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coda_dir_changed(dir, -1);
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de->d_inode->i_nlink--;
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drop_nlink(de->d_inode);
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d_delete(de);
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unlock_kernel();
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@ -326,7 +326,7 @@ static int ext2_rename (struct inode * old_dir, struct dentry * old_dentry,
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ext2_set_link(new_dir, new_de, new_page, old_inode);
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new_inode->i_ctime = CURRENT_TIME_SEC;
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if (dir_de)
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new_inode->i_nlink--;
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drop_nlink(new_inode);
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inode_dec_link_count(new_inode);
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} else {
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if (dir_de) {
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@ -1621,7 +1621,7 @@ static inline void ext3_inc_count(handle_t *handle, struct inode *inode)
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static inline void ext3_dec_count(handle_t *handle, struct inode *inode)
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{
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inode->i_nlink--;
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drop_nlink(inode);
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}
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static int ext3_add_nondir(handle_t *handle,
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@ -1743,7 +1743,7 @@ retry:
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inode->i_size = EXT3_I(inode)->i_disksize = inode->i_sb->s_blocksize;
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dir_block = ext3_bread (handle, inode, 0, 1, &err);
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if (!dir_block) {
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inode->i_nlink--; /* is this nlink == 0? */
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drop_nlink(inode); /* is this nlink == 0? */
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ext3_mark_inode_dirty(handle, inode);
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iput (inode);
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goto out_stop;
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@ -2053,7 +2053,7 @@ static int ext3_rmdir (struct inode * dir, struct dentry *dentry)
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ext3_orphan_add(handle, inode);
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inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
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ext3_mark_inode_dirty(handle, inode);
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dir->i_nlink--;
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drop_nlink(dir);
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ext3_update_dx_flag(dir);
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ext3_mark_inode_dirty(handle, dir);
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@ -2104,7 +2104,7 @@ static int ext3_unlink(struct inode * dir, struct dentry *dentry)
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dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
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ext3_update_dx_flag(dir);
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ext3_mark_inode_dirty(handle, dir);
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inode->i_nlink--;
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drop_nlink(inode);
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if (!inode->i_nlink)
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ext3_orphan_add(handle, inode);
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inode->i_ctime = dir->i_ctime;
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@ -2326,7 +2326,7 @@ static int ext3_rename (struct inode * old_dir, struct dentry *old_dentry,
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}
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if (new_inode) {
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new_inode->i_nlink--;
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drop_nlink(new_inode);
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new_inode->i_ctime = CURRENT_TIME_SEC;
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}
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old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME_SEC;
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@ -2337,9 +2337,9 @@ static int ext3_rename (struct inode * old_dir, struct dentry *old_dentry,
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PARENT_INO(dir_bh->b_data) = cpu_to_le32(new_dir->i_ino);
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BUFFER_TRACE(dir_bh, "call ext3_journal_dirty_metadata");
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ext3_journal_dirty_metadata(handle, dir_bh);
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old_dir->i_nlink--;
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drop_nlink(old_dir);
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if (new_inode) {
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new_inode->i_nlink--;
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drop_nlink(new_inode);
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} else {
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new_dir->i_nlink++;
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ext3_update_dx_flag(new_dir);
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@ -246,7 +246,7 @@ static int hfs_unlink(struct inode *dir, struct dentry *dentry)
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if (res)
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return res;
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inode->i_nlink--;
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drop_nlink(inode);
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hfs_delete_inode(inode);
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inode->i_ctime = CURRENT_TIME_SEC;
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mark_inode_dirty(inode);
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@ -338,7 +338,7 @@ static int hfsplus_unlink(struct inode *dir, struct dentry *dentry)
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return res;
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if (inode->i_nlink > 0)
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inode->i_nlink--;
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drop_nlink(inode);
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hfsplus_delete_inode(inode);
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if (inode->i_ino != cnid && !inode->i_nlink) {
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if (!atomic_read(&HFSPLUS_I(inode).opencnt)) {
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@ -434,7 +434,7 @@ again:
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unlock_kernel();
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return -ENOSPC;
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default:
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inode->i_nlink--;
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drop_nlink(inode);
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err = 0;
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}
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goto out;
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@ -494,7 +494,7 @@ static int hpfs_rmdir(struct inode *dir, struct dentry *dentry)
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err = -ENOSPC;
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break;
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default:
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dir->i_nlink--;
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drop_nlink(dir);
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inode->i_nlink = 0;
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err = 0;
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}
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@ -636,7 +636,7 @@ static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry,
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hpfs_i(i)->i_parent_dir = new_dir->i_ino;
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if (S_ISDIR(i->i_mode)) {
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new_dir->i_nlink++;
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old_dir->i_nlink--;
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drop_nlink(old_dir);
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}
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if ((fnode = hpfs_map_fnode(i->i_sb, i->i_ino, &bh))) {
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fnode->up = new_dir->i_ino;
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@ -1052,9 +1052,8 @@ jffs_remove(struct inode *dir, struct dentry *dentry, int type)
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dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
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mark_inode_dirty(dir);
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inode->i_nlink--;
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inode->i_ctime = dir->i_ctime;
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mark_inode_dirty(inode);
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inode_dec_link_count(inode);
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d_delete(dentry); /* This also frees the inode */
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@ -615,7 +615,7 @@ static int jffs2_rmdir (struct inode *dir_i, struct dentry *dentry)
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}
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ret = jffs2_unlink(dir_i, dentry);
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if (!ret)
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dir_i->i_nlink--;
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drop_nlink(dir_i);
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return ret;
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}
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@ -823,7 +823,7 @@ static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry,
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if (victim_f) {
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/* There was a victim. Kill it off nicely */
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new_dentry->d_inode->i_nlink--;
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drop_nlink(new_dentry->d_inode);
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/* Don't oops if the victim was a dirent pointing to an
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inode which didn't exist. */
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if (victim_f->inocache) {
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@ -862,7 +862,7 @@ static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry,
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}
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if (S_ISDIR(old_dentry->d_inode->i_mode))
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old_dir_i->i_nlink--;
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drop_nlink(old_dir_i);
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new_dir_i->i_mtime = new_dir_i->i_ctime = old_dir_i->i_mtime = old_dir_i->i_ctime = ITIME(now);
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@ -393,9 +393,8 @@ static int jfs_rmdir(struct inode *dip, struct dentry *dentry)
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/* update parent directory's link count corresponding
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* to ".." entry of the target directory deleted
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*/
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dip->i_nlink--;
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dip->i_ctime = dip->i_mtime = CURRENT_TIME;
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mark_inode_dirty(dip);
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inode_dec_link_count(dip);
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/*
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* OS/2 could have created EA and/or ACL
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@ -515,8 +514,7 @@ static int jfs_unlink(struct inode *dip, struct dentry *dentry)
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mark_inode_dirty(dip);
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/* update target's inode */
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ip->i_nlink--;
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mark_inode_dirty(ip);
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inode_dec_link_count(ip);
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/*
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* commit zero link count object
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@ -835,7 +833,7 @@ static int jfs_link(struct dentry *old_dentry,
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rc = txCommit(tid, 2, &iplist[0], 0);
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if (rc) {
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ip->i_nlink--;
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ip->i_nlink--; /* never instantiated */
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iput(ip);
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} else
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d_instantiate(dentry, ip);
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@ -1155,9 +1153,9 @@ static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
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old_ip->i_ino, JFS_RENAME);
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if (rc)
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goto out4;
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new_ip->i_nlink--;
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drop_nlink(new_ip);
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if (S_ISDIR(new_ip->i_mode)) {
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new_ip->i_nlink--;
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drop_nlink(new_ip);
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if (new_ip->i_nlink) {
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mutex_unlock(&JFS_IP(new_ip)->commit_mutex);
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if (old_dir != new_dir)
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@ -1223,7 +1221,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
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goto out4;
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}
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if (S_ISDIR(old_ip->i_mode)) {
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old_dir->i_nlink--;
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drop_nlink(old_dir);
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if (old_dir != new_dir) {
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/*
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* Change inode number of parent for moved directory
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10
fs/libfs.c
10
fs/libfs.c
@ -275,7 +275,7 @@ int simple_unlink(struct inode *dir, struct dentry *dentry)
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struct inode *inode = dentry->d_inode;
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inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
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inode->i_nlink--;
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drop_nlink(inode);
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dput(dentry);
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return 0;
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}
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@ -285,9 +285,9 @@ int simple_rmdir(struct inode *dir, struct dentry *dentry)
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if (!simple_empty(dentry))
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return -ENOTEMPTY;
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dentry->d_inode->i_nlink--;
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drop_nlink(dentry->d_inode);
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simple_unlink(dir, dentry);
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dir->i_nlink--;
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drop_nlink(dir);
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return 0;
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}
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@ -303,9 +303,9 @@ int simple_rename(struct inode *old_dir, struct dentry *old_dentry,
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if (new_dentry->d_inode) {
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simple_unlink(new_dir, new_dentry);
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if (they_are_dirs)
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old_dir->i_nlink--;
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drop_nlink(old_dir);
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} else if (they_are_dirs) {
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old_dir->i_nlink--;
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drop_nlink(old_dir);
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new_dir->i_nlink++;
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}
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@ -249,7 +249,7 @@ static int minix_rename(struct inode * old_dir, struct dentry *old_dentry,
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minix_set_link(new_de, new_page, old_inode);
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new_inode->i_ctime = CURRENT_TIME_SEC;
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if (dir_de)
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new_inode->i_nlink--;
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drop_nlink(new_inode);
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inode_dec_link_count(new_inode);
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} else {
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if (dir_de) {
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@ -343,7 +343,7 @@ static int msdos_rmdir(struct inode *dir, struct dentry *dentry)
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err = fat_remove_entries(dir, &sinfo); /* and releases bh */
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if (err)
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goto out;
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dir->i_nlink--;
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drop_nlink(dir);
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inode->i_nlink = 0;
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inode->i_ctime = CURRENT_TIME_SEC;
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@ -549,7 +549,7 @@ static int do_msdos_rename(struct inode *old_dir, unsigned char *old_name,
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if (err)
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goto error_dotdot;
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}
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old_dir->i_nlink--;
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drop_nlink(old_dir);
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if (!new_inode)
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new_dir->i_nlink++;
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}
|
||||
@ -566,10 +566,9 @@ static int do_msdos_rename(struct inode *old_dir, unsigned char *old_name,
|
||||
mark_inode_dirty(old_dir);
|
||||
|
||||
if (new_inode) {
|
||||
drop_nlink(new_inode);
|
||||
if (is_dir)
|
||||
new_inode->i_nlink -= 2;
|
||||
else
|
||||
new_inode->i_nlink--;
|
||||
drop_nlink(new_inode);
|
||||
new_inode->i_ctime = ts;
|
||||
}
|
||||
out:
|
||||
|
@ -843,7 +843,7 @@ static void nfs_dentry_iput(struct dentry *dentry, struct inode *inode)
|
||||
nfs_inode_return_delegation(inode);
|
||||
if (dentry->d_flags & DCACHE_NFSFS_RENAMED) {
|
||||
lock_kernel();
|
||||
inode->i_nlink--;
|
||||
drop_nlink(inode);
|
||||
nfs_complete_unlink(dentry);
|
||||
unlock_kernel();
|
||||
}
|
||||
@ -1401,7 +1401,7 @@ static int nfs_safe_remove(struct dentry *dentry)
|
||||
error = NFS_PROTO(dir)->remove(dir, &dentry->d_name);
|
||||
/* The VFS may want to delete this inode */
|
||||
if (error == 0)
|
||||
inode->i_nlink--;
|
||||
drop_nlink(inode);
|
||||
nfs_mark_for_revalidate(inode);
|
||||
nfs_end_data_update(inode);
|
||||
} else
|
||||
@ -1639,7 +1639,7 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
|
||||
goto out;
|
||||
}
|
||||
} else
|
||||
new_inode->i_nlink--;
|
||||
drop_nlink(new_inode);
|
||||
|
||||
go_ahead:
|
||||
/*
|
||||
|
@ -739,7 +739,7 @@ static int ocfs2_link(struct dentry *old_dentry,
|
||||
err = ocfs2_journal_dirty(handle, fe_bh);
|
||||
if (err < 0) {
|
||||
le16_add_cpu(&fe->i_links_count, -1);
|
||||
inode->i_nlink--;
|
||||
drop_nlink(inode);
|
||||
mlog_errno(err);
|
||||
goto bail;
|
||||
}
|
||||
@ -749,7 +749,7 @@ static int ocfs2_link(struct dentry *old_dentry,
|
||||
parent_fe_bh, de_bh);
|
||||
if (err) {
|
||||
le16_add_cpu(&fe->i_links_count, -1);
|
||||
inode->i_nlink--;
|
||||
drop_nlink(inode);
|
||||
mlog_errno(err);
|
||||
goto bail;
|
||||
}
|
||||
|
@ -189,8 +189,7 @@ int qnx4_rmdir(struct inode *dir, struct dentry *dentry)
|
||||
inode->i_nlink = 0;
|
||||
mark_inode_dirty(inode);
|
||||
inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
|
||||
dir->i_nlink--;
|
||||
mark_inode_dirty(dir);
|
||||
inode_dec_link_count(dir);
|
||||
retval = 0;
|
||||
|
||||
end_rmdir:
|
||||
@ -234,9 +233,8 @@ int qnx4_unlink(struct inode *dir, struct dentry *dentry)
|
||||
mark_buffer_dirty(bh);
|
||||
dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
|
||||
mark_inode_dirty(dir);
|
||||
inode->i_nlink--;
|
||||
inode->i_ctime = dir->i_ctime;
|
||||
mark_inode_dirty(inode);
|
||||
inode_dec_link_count(inode);
|
||||
retval = 0;
|
||||
|
||||
end_unlink:
|
||||
|
@ -20,7 +20,7 @@
|
||||
#include <linux/quotaops.h>
|
||||
|
||||
#define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { i->i_nlink++; if (i->i_nlink >= REISERFS_LINK_MAX) i->i_nlink=1; }
|
||||
#define DEC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) i->i_nlink--;
|
||||
#define DEC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) drop_nlink(i);
|
||||
|
||||
// directory item contains array of entry headers. This performs
|
||||
// binary search through that array
|
||||
@ -994,7 +994,7 @@ static int reiserfs_unlink(struct inode *dir, struct dentry *dentry)
|
||||
inode->i_nlink = 1;
|
||||
}
|
||||
|
||||
inode->i_nlink--;
|
||||
drop_nlink(inode);
|
||||
|
||||
/*
|
||||
* we schedule before doing the add_save_link call, save the link
|
||||
@ -1475,7 +1475,7 @@ static int reiserfs_rename(struct inode *old_dir, struct dentry *old_dentry,
|
||||
if (S_ISDIR(new_dentry_inode->i_mode)) {
|
||||
new_dentry_inode->i_nlink = 0;
|
||||
} else {
|
||||
new_dentry_inode->i_nlink--;
|
||||
drop_nlink(new_dentry_inode);
|
||||
}
|
||||
new_dentry_inode->i_ctime = ctime;
|
||||
savelink = new_dentry_inode->i_nlink;
|
||||
|
@ -250,7 +250,7 @@ static int sysv_rename(struct inode * old_dir, struct dentry * old_dentry,
|
||||
sysv_set_link(new_de, new_page, old_inode);
|
||||
new_inode->i_ctime = CURRENT_TIME_SEC;
|
||||
if (dir_de)
|
||||
new_inode->i_nlink--;
|
||||
drop_nlink(new_inode);
|
||||
inode_dec_link_count(new_inode);
|
||||
} else {
|
||||
if (dir_de) {
|
||||
|
@ -878,8 +878,7 @@ static int udf_rmdir(struct inode * dir, struct dentry * dentry)
|
||||
inode->i_nlink);
|
||||
inode->i_nlink = 0;
|
||||
inode->i_size = 0;
|
||||
mark_inode_dirty(inode);
|
||||
dir->i_nlink --;
|
||||
inode_dec_link_count(inode);
|
||||
inode->i_ctime = dir->i_ctime = dir->i_mtime = current_fs_time(dir->i_sb);
|
||||
mark_inode_dirty(dir);
|
||||
|
||||
@ -923,8 +922,7 @@ static int udf_unlink(struct inode * dir, struct dentry * dentry)
|
||||
goto end_unlink;
|
||||
dir->i_ctime = dir->i_mtime = current_fs_time(dir->i_sb);
|
||||
mark_inode_dirty(dir);
|
||||
inode->i_nlink--;
|
||||
mark_inode_dirty(inode);
|
||||
inode_dec_link_count(inode);
|
||||
inode->i_ctime = dir->i_ctime;
|
||||
retval = 0;
|
||||
|
||||
@ -1101,8 +1099,7 @@ out:
|
||||
return err;
|
||||
|
||||
out_no_entry:
|
||||
inode->i_nlink--;
|
||||
mark_inode_dirty(inode);
|
||||
inode_dec_link_count(inode);
|
||||
iput(inode);
|
||||
goto out;
|
||||
}
|
||||
@ -1261,9 +1258,8 @@ static int udf_rename (struct inode * old_dir, struct dentry * old_dentry,
|
||||
|
||||
if (new_inode)
|
||||
{
|
||||
new_inode->i_nlink--;
|
||||
new_inode->i_ctime = current_fs_time(new_inode->i_sb);
|
||||
mark_inode_dirty(new_inode);
|
||||
inode_dec_link_count(new_inode);
|
||||
}
|
||||
old_dir->i_ctime = old_dir->i_mtime = current_fs_time(old_dir->i_sb);
|
||||
mark_inode_dirty(old_dir);
|
||||
@ -1279,12 +1275,10 @@ static int udf_rename (struct inode * old_dir, struct dentry * old_dentry,
|
||||
}
|
||||
else
|
||||
mark_buffer_dirty_inode(dir_bh, old_inode);
|
||||
old_dir->i_nlink --;
|
||||
mark_inode_dirty(old_dir);
|
||||
inode_dec_link_count(old_dir);
|
||||
if (new_inode)
|
||||
{
|
||||
new_inode->i_nlink --;
|
||||
mark_inode_dirty(new_inode);
|
||||
inode_dec_link_count(new_inode);
|
||||
}
|
||||
else
|
||||
{
|
||||
|
@ -308,7 +308,7 @@ static int ufs_rename(struct inode *old_dir, struct dentry *old_dentry,
|
||||
ufs_set_link(new_dir, new_de, new_page, old_inode);
|
||||
new_inode->i_ctime = CURRENT_TIME_SEC;
|
||||
if (dir_de)
|
||||
new_inode->i_nlink--;
|
||||
drop_nlink(new_inode);
|
||||
inode_dec_link_count(new_inode);
|
||||
} else {
|
||||
if (dir_de) {
|
||||
|
@ -782,7 +782,7 @@ static int vfat_rmdir(struct inode *dir, struct dentry *dentry)
|
||||
err = fat_remove_entries(dir, &sinfo); /* and releases bh */
|
||||
if (err)
|
||||
goto out;
|
||||
dir->i_nlink--;
|
||||
drop_nlink(dir);
|
||||
|
||||
inode->i_nlink = 0;
|
||||
inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
|
||||
@ -930,7 +930,7 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
|
||||
if (err)
|
||||
goto error_dotdot;
|
||||
}
|
||||
old_dir->i_nlink--;
|
||||
drop_nlink(old_dir);
|
||||
if (!new_inode)
|
||||
new_dir->i_nlink++;
|
||||
}
|
||||
@ -947,10 +947,9 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
|
||||
mark_inode_dirty(old_dir);
|
||||
|
||||
if (new_inode) {
|
||||
drop_nlink(new_inode);
|
||||
if (is_dir)
|
||||
new_inode->i_nlink -= 2;
|
||||
else
|
||||
new_inode->i_nlink--;
|
||||
drop_nlink(new_inode);
|
||||
new_inode->i_ctime = ts;
|
||||
}
|
||||
out:
|
||||
|
@ -1225,9 +1225,14 @@ static inline void inode_inc_link_count(struct inode *inode)
|
||||
mark_inode_dirty(inode);
|
||||
}
|
||||
|
||||
static inline void inode_dec_link_count(struct inode *inode)
|
||||
static inline void drop_nlink(struct inode *inode)
|
||||
{
|
||||
inode->i_nlink--;
|
||||
}
|
||||
|
||||
static inline void inode_dec_link_count(struct inode *inode)
|
||||
{
|
||||
drop_nlink(inode);
|
||||
mark_inode_dirty(inode);
|
||||
}
|
||||
|
||||
|
@ -307,7 +307,7 @@ static int mqueue_unlink(struct inode *dir, struct dentry *dentry)
|
||||
|
||||
dir->i_ctime = dir->i_mtime = dir->i_atime = CURRENT_TIME;
|
||||
dir->i_size -= DIRENT_SIZE;
|
||||
inode->i_nlink--;
|
||||
drop_nlink(inode);
|
||||
dput(dentry);
|
||||
return 0;
|
||||
}
|
||||
|
10
mm/shmem.c
10
mm/shmem.c
@ -1772,7 +1772,7 @@ static int shmem_unlink(struct inode *dir, struct dentry *dentry)
|
||||
|
||||
dir->i_size -= BOGO_DIRENT_SIZE;
|
||||
inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
|
||||
inode->i_nlink--;
|
||||
drop_nlink(inode);
|
||||
dput(dentry); /* Undo the count from "create" - this does all the work */
|
||||
return 0;
|
||||
}
|
||||
@ -1782,8 +1782,8 @@ static int shmem_rmdir(struct inode *dir, struct dentry *dentry)
|
||||
if (!simple_empty(dentry))
|
||||
return -ENOTEMPTY;
|
||||
|
||||
dentry->d_inode->i_nlink--;
|
||||
dir->i_nlink--;
|
||||
drop_nlink(dentry->d_inode);
|
||||
drop_nlink(dir);
|
||||
return shmem_unlink(dir, dentry);
|
||||
}
|
||||
|
||||
@ -1804,9 +1804,9 @@ static int shmem_rename(struct inode *old_dir, struct dentry *old_dentry, struct
|
||||
if (new_dentry->d_inode) {
|
||||
(void) shmem_unlink(new_dir, new_dentry);
|
||||
if (they_are_dirs)
|
||||
old_dir->i_nlink--;
|
||||
drop_nlink(old_dir);
|
||||
} else if (they_are_dirs) {
|
||||
old_dir->i_nlink--;
|
||||
drop_nlink(old_dir);
|
||||
new_dir->i_nlink++;
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user