diff options
| -rw-r--r-- | fs/smb/client/cifsfs.c | 6 | ||||
| -rw-r--r-- | fs/smb/client/cifsglob.h | 6 | ||||
| -rw-r--r-- | fs/smb/client/connect.c | 3 | ||||
| -rw-r--r-- | fs/smb/client/file.c | 4 | ||||
| -rw-r--r-- | fs/smb/client/ioctl.c | 2 | ||||
| -rw-r--r-- | fs/smb/client/link.c | 1 | ||||
| -rw-r--r-- | fs/smb/client/reparse.c | 11 |
7 files changed, 20 insertions, 13 deletions
diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c index 2c4b357d85e2..d89485235425 100644 --- a/fs/smb/client/cifsfs.c +++ b/fs/smb/client/cifsfs.c @@ -75,9 +75,9 @@ unsigned int sign_CIFS_PDUs = 1; /* * Global transaction id (XID) information */ -unsigned int GlobalCurrentXid; /* protected by GlobalMid_Sem */ -unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */ -unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Sem */ +unsigned int GlobalCurrentXid; /* protected by GlobalMid_Lock */ +unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Lock */ +unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Lock */ spinlock_t GlobalMid_Lock; /* protects above & list operations on midQ entries */ /* diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h index 5c9b3e6cd95f..7ebe80a25d04 100644 --- a/fs/smb/client/cifsglob.h +++ b/fs/smb/client/cifsglob.h @@ -2017,9 +2017,9 @@ extern spinlock_t cifs_tcp_ses_lock; /* * Global transaction id (XID) information */ -extern unsigned int GlobalCurrentXid; /* protected by GlobalMid_Sem */ -extern unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */ -extern unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Sem */ +extern unsigned int GlobalCurrentXid; /* protected by GlobalMid_Lock */ +extern unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Lock */ +extern unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Lock */ extern spinlock_t GlobalMid_Lock; /* protects above & list operations on midQ entries */ /* diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c index d2307162a2de..c1c14274930a 100644 --- a/fs/smb/client/connect.c +++ b/fs/smb/client/connect.c @@ -4194,6 +4194,9 @@ tlink_rb_insert(struct rb_root *root, struct tcon_link *new_tlink) * * If one doesn't exist then insert a new tcon_link struct into the tree and * try to construct a new one. + * + * REMEMBER to call cifs_put_tlink() after successful calls to cifs_sb_tlink, + * to avoid refcount issues */ struct tcon_link * cifs_sb_tlink(struct cifs_sb_info *cifs_sb) diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c index 1fc66bcf49eb..f9b302cb8233 100644 --- a/fs/smb/client/file.c +++ b/fs/smb/client/file.c @@ -2912,9 +2912,7 @@ cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to) if (!CIFS_CACHE_READ(cinode)) return netfs_unbuffered_read_iter(iocb, to); - if (cap_unix(tcon->ses) && - (CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability)) && - ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0)) { + if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0) { if (iocb->ki_flags & IOCB_DIRECT) return netfs_unbuffered_read_iter(iocb, to); return netfs_buffered_read_iter(iocb, to); diff --git a/fs/smb/client/ioctl.c b/fs/smb/client/ioctl.c index 44dbaf9929a4..9bb5c869f4db 100644 --- a/fs/smb/client/ioctl.c +++ b/fs/smb/client/ioctl.c @@ -229,9 +229,11 @@ static int cifs_shutdown(struct super_block *sb, unsigned long arg) shutdown_good: trace_smb3_shutdown_done(flags, tcon->tid); + cifs_put_tlink(tlink); return 0; shutdown_out_err: trace_smb3_shutdown_err(rc, flags, tcon->tid); + cifs_put_tlink(tlink); return rc; } diff --git a/fs/smb/client/link.c b/fs/smb/client/link.c index d86da949a919..80099bbb333b 100644 --- a/fs/smb/client/link.c +++ b/fs/smb/client/link.c @@ -588,6 +588,7 @@ cifs_symlink(struct mnt_idmap *idmap, struct inode *inode, tlink = cifs_sb_tlink(cifs_sb); if (IS_ERR(tlink)) { rc = PTR_ERR(tlink); + /* BB could be clearer if skipped put_tlink on error here, but harmless */ goto symlink_exit; } pTcon = tlink_tcon(tlink); diff --git a/fs/smb/client/reparse.c b/fs/smb/client/reparse.c index 689d8a506d45..48c27581ec51 100644 --- a/fs/smb/client/reparse.c +++ b/fs/smb/client/reparse.c @@ -378,6 +378,8 @@ int parse_reparse_point(struct reparse_data_buffer *buf, u32 plen, struct cifs_sb_info *cifs_sb, bool unicode, struct cifs_open_info_data *data) { + struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb); + data->reparse.buf = buf; /* See MS-FSCC 2.1.2 */ @@ -394,12 +396,13 @@ int parse_reparse_point(struct reparse_data_buffer *buf, case IO_REPARSE_TAG_LX_FIFO: case IO_REPARSE_TAG_LX_CHR: case IO_REPARSE_TAG_LX_BLK: - return 0; + break; default: - cifs_dbg(VFS, "%s: unhandled reparse tag: 0x%08x\n", - __func__, le32_to_cpu(buf->ReparseTag)); - return -EOPNOTSUPP; + cifs_tcon_dbg(VFS | ONCE, "unhandled reparse tag: 0x%08x\n", + le32_to_cpu(buf->ReparseTag)); + break; } + return 0; } int smb2_parse_reparse_point(struct cifs_sb_info *cifs_sb, |