diff options
Diffstat (limited to 'fs/smb/client/file.c')
| -rw-r--r-- | fs/smb/client/file.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c index 8582cf61242c..9e8f404b9e56 100644 --- a/fs/smb/client/file.c +++ b/fs/smb/client/file.c @@ -388,7 +388,7 @@ cifs_mark_open_files_invalid(struct cifs_tcon *tcon) spin_unlock(&tcon->tc_lock); /* - * BB Add call to invalidate_inodes(sb) for all superblocks mounted + * BB Add call to evict_inodes(sb) for all superblocks mounted * to this tcon. */ } @@ -1007,6 +1007,11 @@ int cifs_open(struct inode *inode, struct file *file) } else { _cifsFileInfo_put(cfile, true, false); } + } else { + /* hard link on the defeered close file */ + rc = cifs_get_hardlink_path(tcon, inode, file); + if (rc) + cifs_close_deferred_file(CIFS_I(inode)); } if (server->oplocks) @@ -2071,6 +2076,29 @@ cifs_move_llist(struct list_head *source, struct list_head *dest) list_move(li, dest); } +int +cifs_get_hardlink_path(struct cifs_tcon *tcon, struct inode *inode, + struct file *file) +{ + struct cifsFileInfo *open_file = NULL; + struct cifsInodeInfo *cinode = CIFS_I(inode); + int rc = 0; + + spin_lock(&tcon->open_file_lock); + spin_lock(&cinode->open_file_lock); + + list_for_each_entry(open_file, &cinode->openFileList, flist) { + if (file->f_flags == open_file->f_flags) { + rc = -EINVAL; + break; + } + } + + spin_unlock(&cinode->open_file_lock); + spin_unlock(&tcon->open_file_lock); + return rc; +} + void cifs_free_llist(struct list_head *llist) { @@ -3082,7 +3110,7 @@ void cifs_oplock_break(struct work_struct *work) cinode->oplock = 0; } - if (inode && S_ISREG(inode->i_mode)) { + if (S_ISREG(inode->i_mode)) { if (CIFS_CACHE_READ(cinode)) break_lease(inode, O_RDONLY); else |