* [PATCH 6.18 1245/1250] smb: client: use atomic_t for mnt_cifs_flags
[not found] <20260917151551.901433442@linuxfoundation.org>
@ 2026-09-17 15:17 ` Greg Kroah-Hartman
0 siblings, 0 replies; only message in thread
From: Greg Kroah-Hartman @ 2026-09-17 15:17 UTC (permalink / raw)
To: stable
Cc: Greg Kroah-Hartman, patches, Paulo Alcantara (Red Hat),
David Howells, linux-cifs, Steve French, Sasha Levin
6.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paulo Alcantara <pc@manguebit.org>
[ Upstream commit 4fc3a433c13944ee5766ec5b9bf6f1eb4d29b880 ]
Use atomic_t for cifs_sb_info::mnt_cifs_flags as it's currently
accessed locklessly and may be changed concurrently in mount/remount
and reconnect paths.
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Reviewed-by: David Howells <dhowells@redhat.com>
Cc: linux-cifs@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
[Backport to 6.18: retain the atomic mount-flag conversion while keeping
this branch's existing function interfaces and locations. Implement
cifs_sb_flags as a single-evaluation macro with the upstream unsigned
return type; do not add functions or import the generic CIFS_SB helpers,
inode-state changes, reconnect helpers, or oplock refactors.
Convert the existing readers, including the legacy cache macros, to the
accessor. Use atomic bit operations at existing update sites, including
reset_cifs_unix_caps in connect.c, and publish the remount flag snapshot
with atomic_set. Keep smb3_update_mnt_flags returning void.
This supplies the accessor required by cd2b2b57921d (smb: client: fix WSL
reparse point uid/gid override), whose patch applies without changes.]
[ sashal: Reduced backport -- upstream 4fc3a433c1394 touches 27 file(s), this
backport carries 25. Not backported here:
fs/smb/client/cifs_unicode.h
fs/smb/client/fs_context.h
This note is generated from the file lists only; see the resolution record
for the reasoning. ]
Stable-dep-of: cd2b2b57921d ("smb: client: fix WSL reparse point uid/gid override")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/smb/client/cached_dir.c | 2
fs/smb/client/cifs_fs_sb.h | 8 ++-
fs/smb/client/cifs_ioctl.h | 2
fs/smb/client/cifs_unicode.c | 4 -
fs/smb/client/cifsacl.c | 6 +-
fs/smb/client/cifsfs.c | 66 ++++++++++++-------------
fs/smb/client/cifsglob.h | 10 ++-
fs/smb/client/connect.c | 43 +++++++---------
fs/smb/client/dfs_cache.c | 2
fs/smb/client/dir.c | 16 +++---
fs/smb/client/file.c | 32 ++++++------
fs/smb/client/fs_context.c | 110 +++++++++++++++++++++----------------------
fs/smb/client/inode.c | 80 +++++++++++++++----------------
fs/smb/client/ioctl.c | 2
fs/smb/client/link.c | 4 -
fs/smb/client/misc.c | 12 ++--
fs/smb/client/readdir.c | 16 +++---
fs/smb/client/reparse.c | 10 +--
fs/smb/client/reparse.h | 4 -
fs/smb/client/smb1ops.c | 4 -
fs/smb/client/smb2file.c | 2
fs/smb/client/smb2misc.c | 4 -
fs/smb/client/smb2ops.c | 4 -
fs/smb/client/smb2pdu.c | 4 -
fs/smb/client/xattr.c | 6 +-
25 files changed, 230 insertions(+), 223 deletions(-)
--- a/fs/smb/client/cached_dir.c
+++ b/fs/smb/client/cached_dir.c
@@ -118,7 +118,7 @@ static const char *path_no_prefix(struct
if (!*path)
return path;
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) &&
+ if ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_USE_PREFIX_PATH) &&
cifs_sb->prepath) {
len = strlen(cifs_sb->prepath) + 1;
if (unlikely(len > strlen(path)))
--- a/fs/smb/client/cifs_fs_sb.h
+++ b/fs/smb/client/cifs_fs_sb.h
@@ -10,6 +10,7 @@
#ifndef _CIFS_FS_SB_H
#define _CIFS_FS_SB_H
+#include <linux/atomic.h>
#include <linux/backing-dev.h>
#define CIFS_MOUNT_NO_PERM 1 /* do not do client vfs_perm check */
@@ -55,7 +56,7 @@ struct cifs_sb_info {
struct nls_table *local_nls;
struct smb3_fs_context *ctx;
atomic_t active;
- unsigned int mnt_cifs_flags;
+ atomic_t mnt_cifs_flags;
struct delayed_work prune_tlinks;
struct rcu_head rcu;
@@ -72,4 +73,9 @@ struct cifs_sb_info {
*/
struct dentry *root;
};
+
+/* Mount flags are accessed locklessly by mount/remount and reconnect paths. */
+#define cifs_sb_flags(cifs_sb) \
+ ((unsigned int)atomic_read(&(cifs_sb)->mnt_cifs_flags))
+
#endif /* _CIFS_FS_SB_H */
--- a/fs/smb/client/cifs_ioctl.h
+++ b/fs/smb/client/cifs_ioctl.h
@@ -125,7 +125,7 @@ struct smb3_notify_info {
static inline bool cifs_forced_shutdown(struct cifs_sb_info *sbi)
{
- if (CIFS_MOUNT_SHUTDOWN & sbi->mnt_cifs_flags)
+ if (CIFS_MOUNT_SHUTDOWN & cifs_sb_flags(sbi))
return true;
else
return false;
--- a/fs/smb/client/cifs_unicode.c
+++ b/fs/smb/client/cifs_unicode.c
@@ -16,9 +16,9 @@ int cifs_remap(struct cifs_sb_info *cifs
{
int map_type;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SFM_CHR)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MAP_SFM_CHR)
map_type = SFM_MAP_UNI_RSVD;
- else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
+ else if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MAP_SPECIAL_CHR)
map_type = SFU_MAP_UNI_RSVD;
else
map_type = NO_MAP_UNI_RSVD;
--- a/fs/smb/client/cifsacl.c
+++ b/fs/smb/client/cifsacl.c
@@ -373,7 +373,7 @@ sid_to_id(struct cifs_sb_info *cifs_sb,
return -EIO;
}
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UID_FROM_ACL) ||
+ if ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_UID_FROM_ACL) ||
(cifs_sb_master_tcon(cifs_sb)->posix_extensions)) {
uint32_t unix_id;
bool is_group;
@@ -1752,12 +1752,12 @@ id_mode_to_cifs_acl(struct inode *inode,
return rc;
}
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MODE_FROM_SID)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MODE_FROM_SID)
mode_from_sid = true;
else
mode_from_sid = false;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UID_FROM_ACL)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_UID_FROM_ACL)
id_from_sid = true;
else
id_from_sid = false;
--- a/fs/smb/client/cifsfs.c
+++ b/fs/smb/client/cifsfs.c
@@ -236,7 +236,7 @@ cifs_read_super(struct super_block *sb)
cifs_sb = CIFS_SB(sb);
tcon = cifs_sb_master_tcon(cifs_sb);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIXACL)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_POSIXACL)
sb->s_flags |= SB_POSIXACL;
if (tcon->snapshot_time)
@@ -312,7 +312,7 @@ cifs_read_super(struct super_block *sb)
}
#ifdef CONFIG_CIFS_NFSD_EXPORT
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM) {
cifs_dbg(FYI, "export ops supported\n");
sb->s_export_op = &cifs_export_ops;
}
@@ -429,7 +429,7 @@ static int cifs_permission(struct mnt_id
cifs_sb = CIFS_SB(inode->i_sb);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_PERM) {
if ((mask & MAY_EXEC) && !execute_ok(inode))
return -EACCES;
else
@@ -577,13 +577,13 @@ cifs_show_cache_flavor(struct seq_file *
{
seq_puts(s, ",cache=");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_STRICT_IO)
seq_puts(s, "strict");
- else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
+ else if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_DIRECT_IO)
seq_puts(s, "none");
- else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RW_CACHE)
+ else if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_RW_CACHE)
seq_puts(s, "singleclient"); /* assume only one client access */
- else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RO_CACHE)
+ else if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_RO_CACHE)
seq_puts(s, "ro"); /* read only caching assumed */
else
seq_puts(s, "loose");
@@ -679,14 +679,14 @@ cifs_show_options(struct seq_file *s, st
seq_printf(s, ",uid=%u",
from_kuid_munged(&init_user_ns, cifs_sb->ctx->linux_uid));
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_OVERR_UID)
seq_puts(s, ",forceuid");
else
seq_puts(s, ",noforceuid");
seq_printf(s, ",gid=%u",
from_kgid_munged(&init_user_ns, cifs_sb->ctx->linux_gid));
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_OVERR_GID)
seq_puts(s, ",forcegid");
else
seq_puts(s, ",noforcegid");
@@ -729,53 +729,53 @@ cifs_show_options(struct seq_file *s, st
seq_puts(s, ",unix");
else
seq_puts(s, ",nounix");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_DFS)
seq_puts(s, ",nodfs");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_POSIX_PATHS)
seq_puts(s, ",posixpaths");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SET_UID)
seq_puts(s, ",setuids");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UID_FROM_ACL)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_UID_FROM_ACL)
seq_puts(s, ",idsfromsid");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM)
seq_puts(s, ",serverino");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_RWPIDFORWARD)
seq_puts(s, ",rwpidforward");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NOPOSIXBRL)
seq_puts(s, ",forcemand");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_XATTR)
seq_puts(s, ",nouser_xattr");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MAP_SPECIAL_CHR)
seq_puts(s, ",mapchars");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SFM_CHR)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MAP_SFM_CHR)
seq_puts(s, ",mapposix");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_UNX_EMUL)
seq_puts(s, ",sfu");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_BRL)
seq_puts(s, ",nobrl");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_HANDLE_CACHE)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_HANDLE_CACHE)
seq_puts(s, ",nohandlecache");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MODE_FROM_SID)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MODE_FROM_SID)
seq_puts(s, ",modefromsid");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_CIFS_ACL)
seq_puts(s, ",cifsacl");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_DYNPERM)
seq_puts(s, ",dynperm");
if (root->d_sb->s_flags & SB_POSIXACL)
seq_puts(s, ",acl");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MF_SYMLINKS)
seq_puts(s, ",mfsymlinks");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_FSCACHE)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_FSCACHE)
seq_puts(s, ",fsc");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NOSSYNC)
seq_puts(s, ",nostrictsync");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_PERM)
seq_puts(s, ",noperm");
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_BACKUPUID)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_CIFS_BACKUPUID)
seq_printf(s, ",backupuid=%u",
from_kuid_munged(&init_user_ns,
cifs_sb->ctx->backupuid));
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_BACKUPGID)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_CIFS_BACKUPGID)
seq_printf(s, ",backupgid=%u",
from_kgid_munged(&init_user_ns,
cifs_sb->ctx->backupgid));
@@ -918,7 +918,7 @@ static int cifs_drop_inode(struct inode
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
/* no serverino => unconditional eviction */
- return !(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) ||
+ return !(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM) ||
inode_generic_drop(inode);
}
@@ -956,7 +956,7 @@ cifs_get_root(struct smb3_fs_context *ct
char *s, *p;
char sep;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_USE_PREFIX_PATH)
return dget(sb->s_root);
full_path = cifs_build_path_to_root(ctx, cifs_sb,
--- a/fs/smb/client/cifsglob.h
+++ b/fs/smb/client/cifsglob.h
@@ -1540,9 +1540,13 @@ int cifs_file_set_size(const unsigned in
#define CIFS_CACHE_RW_FLG (CIFS_CACHE_READ_FLG | CIFS_CACHE_WRITE_FLG)
#define CIFS_CACHE_RHW_FLG (CIFS_CACHE_RW_FLG | CIFS_CACHE_HANDLE_FLG)
-#define CIFS_CACHE_READ(cinode) ((cinode->oplock & CIFS_CACHE_READ_FLG) || (CIFS_SB(cinode->netfs.inode.i_sb)->mnt_cifs_flags & CIFS_MOUNT_RO_CACHE))
+#define CIFS_CACHE_READ(cinode) \
+ (((cinode)->oplock & CIFS_CACHE_READ_FLG) || \
+ (cifs_sb_flags(CIFS_SB((cinode)->netfs.inode.i_sb)) & CIFS_MOUNT_RO_CACHE))
#define CIFS_CACHE_HANDLE(cinode) (cinode->oplock & CIFS_CACHE_HANDLE_FLG)
-#define CIFS_CACHE_WRITE(cinode) ((cinode->oplock & CIFS_CACHE_WRITE_FLG) || (CIFS_SB(cinode->netfs.inode.i_sb)->mnt_cifs_flags & CIFS_MOUNT_RW_CACHE))
+#define CIFS_CACHE_WRITE(cinode) \
+ (((cinode)->oplock & CIFS_CACHE_WRITE_FLG) || \
+ (cifs_sb_flags(CIFS_SB((cinode)->netfs.inode.i_sb)) & CIFS_MOUNT_RW_CACHE))
/*
* One of these for each file inode
@@ -1605,7 +1609,7 @@ CIFS_FILE_SB(struct file *file)
static inline char CIFS_DIR_SEP(const struct cifs_sb_info *cifs_sb)
{
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_POSIX_PATHS)
return '/';
else
return '\\';
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -2922,8 +2922,8 @@ compare_mount_options(struct super_block
{
struct cifs_sb_info *old = CIFS_SB(sb);
struct cifs_sb_info *new = mnt_data->cifs_sb;
- unsigned int oldflags = old->mnt_cifs_flags & CIFS_MOUNT_MASK;
- unsigned int newflags = new->mnt_cifs_flags & CIFS_MOUNT_MASK;
+ unsigned int oldflags = cifs_sb_flags(old) & CIFS_MOUNT_MASK;
+ unsigned int newflags = cifs_sb_flags(new) & CIFS_MOUNT_MASK;
if ((sb->s_flags & CIFS_MS_MASK) != (mnt_data->flags & CIFS_MS_MASK))
return 0;
@@ -2978,9 +2978,9 @@ static int match_prepath(struct super_bl
struct smb3_fs_context *ctx = mnt_data->ctx;
struct cifs_sb_info *old = CIFS_SB(sb);
struct cifs_sb_info *new = mnt_data->cifs_sb;
- bool old_set = (old->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) &&
+ bool old_set = (cifs_sb_flags(old) & CIFS_MOUNT_USE_PREFIX_PATH) &&
old->prepath;
- bool new_set = (new->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) &&
+ bool new_set = (cifs_sb_flags(new) & CIFS_MOUNT_USE_PREFIX_PATH) &&
new->prepath;
if (tcon->origin_fullpath &&
@@ -3011,7 +3011,7 @@ cifs_match_super(struct super_block *sb,
cifs_sb = CIFS_SB(sb);
/* We do not want to use a superblock that has been shutdown */
- if (CIFS_MOUNT_SHUTDOWN & cifs_sb->mnt_cifs_flags) {
+ if (CIFS_MOUNT_SHUTDOWN & cifs_sb_flags(cifs_sb)) {
spin_unlock(&cifs_tcp_ses_lock);
return 0;
}
@@ -3536,8 +3536,7 @@ void reset_cifs_unix_caps(unsigned int x
else if (CIFS_UNIX_POSIX_ACL_CAP & cap) {
cifs_dbg(FYI, "negotiated posix acl support\n");
if (cifs_sb)
- cifs_sb->mnt_cifs_flags |=
- CIFS_MOUNT_POSIXACL;
+ atomic_or(CIFS_MOUNT_POSIXACL, &cifs_sb->mnt_cifs_flags);
}
if (ctx && ctx->posix_paths == 0)
@@ -3545,8 +3544,7 @@ void reset_cifs_unix_caps(unsigned int x
else if (cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) {
cifs_dbg(FYI, "negotiate posix pathnames\n");
if (cifs_sb)
- cifs_sb->mnt_cifs_flags |=
- CIFS_MOUNT_POSIX_PATHS;
+ atomic_or(CIFS_MOUNT_POSIX_PATHS, &cifs_sb->mnt_cifs_flags);
}
cifs_dbg(FYI, "Negotiate caps 0x%x\n", (int)cap);
@@ -3614,11 +3612,10 @@ int cifs_setup_cifs_sb(struct cifs_sb_in
cifs_dbg(FYI, "mounting share using direct i/o\n");
if (ctx->cache_ro) {
cifs_dbg(VFS, "mounting share with read only caching. Ensure that the share will not be modified while in use.\n");
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_RO_CACHE;
+ atomic_or(CIFS_MOUNT_RO_CACHE, &cifs_sb->mnt_cifs_flags);
} else if (ctx->cache_rw) {
cifs_dbg(VFS, "mounting share in single client RW caching mode. Ensure that no other systems will be accessing the share.\n");
- cifs_sb->mnt_cifs_flags |= (CIFS_MOUNT_RO_CACHE |
- CIFS_MOUNT_RW_CACHE);
+ atomic_or(CIFS_MOUNT_RO_CACHE | CIFS_MOUNT_RW_CACHE, &cifs_sb->mnt_cifs_flags);
}
if ((ctx->cifs_acl) && (ctx->dynperm))
@@ -3628,7 +3625,7 @@ int cifs_setup_cifs_sb(struct cifs_sb_in
cifs_sb->prepath = kstrdup(ctx->prepath, GFP_KERNEL);
if (cifs_sb->prepath == NULL)
return -ENOMEM;
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH;
+ atomic_or(CIFS_MOUNT_USE_PREFIX_PATH, &cifs_sb->mnt_cifs_flags);
}
return 0;
@@ -3648,7 +3645,7 @@ void cifs_mount_put_conns(struct cifs_mo
mnt_ctx->ses = NULL;
mnt_ctx->tcon = NULL;
mnt_ctx->server = NULL;
- mnt_ctx->cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_POSIX_PATHS;
+ atomic_andnot(CIFS_MOUNT_POSIX_PATHS, &mnt_ctx->cifs_sb->mnt_cifs_flags);
free_xid(mnt_ctx->xid);
}
@@ -3729,9 +3726,9 @@ int cifs_mount_get_tcon(struct cifs_moun
* path (i.e., do not remap / and \ and do not map any special characters)
*/
if (tcon->posix_extensions) {
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_POSIX_PATHS;
- cifs_sb->mnt_cifs_flags &= ~(CIFS_MOUNT_MAP_SFM_CHR |
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ atomic_or(CIFS_MOUNT_POSIX_PATHS, &cifs_sb->mnt_cifs_flags);
+ atomic_andnot(CIFS_MOUNT_MAP_SFM_CHR | CIFS_MOUNT_MAP_SPECIAL_CHR,
+ &cifs_sb->mnt_cifs_flags);
}
#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
@@ -3758,11 +3755,11 @@ int cifs_mount_get_tcon(struct cifs_moun
/* do not care if a following call succeed - informational */
if (!tcon->pipe && server->ops->qfs_tcon) {
server->ops->qfs_tcon(mnt_ctx->xid, tcon, cifs_sb);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RO_CACHE) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_RO_CACHE) {
if (tcon->fsDevInfo.DeviceCharacteristics &
cpu_to_le32(FILE_READ_ONLY_DEVICE))
cifs_dbg(VFS, "mounted to read only share\n");
- else if ((cifs_sb->mnt_cifs_flags &
+ else if ((cifs_sb_flags(cifs_sb) &
CIFS_MOUNT_RW_CACHE) == 0)
cifs_dbg(VFS, "read only mount of RW share\n");
/* no need to log a RW mount of a typical RW share */
@@ -3775,7 +3772,7 @@ int cifs_mount_get_tcon(struct cifs_moun
* Inside cifs_fscache_get_super_cookie it checks
* that we do not get super cookie twice.
*/
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_FSCACHE)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_FSCACHE)
cifs_fscache_get_super_cookie(tcon);
out:
@@ -3898,7 +3895,7 @@ int cifs_is_path_remote(struct cifs_moun
cifs_sb, full_path, tcon->Flags & SMB_SHARE_IS_IN_DFS);
if (rc != 0) {
cifs_server_dbg(VFS, "cannot query dirs between root and final path, enabling CIFS_MOUNT_USE_PREFIX_PATH\n");
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH;
+ atomic_or(CIFS_MOUNT_USE_PREFIX_PATH, &cifs_sb->mnt_cifs_flags);
rc = 0;
}
}
@@ -3929,7 +3926,7 @@ int cifs_mount(struct cifs_sb_info *cifs
* Force the use of prefix path to support failover on DFS paths that resolve to targets
* that have different prefix paths.
*/
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH;
+ atomic_or(CIFS_MOUNT_USE_PREFIX_PATH, &cifs_sb->mnt_cifs_flags);
kfree(cifs_sb->prepath);
cifs_sb->prepath = ctx->prepath;
ctx->prepath = NULL;
@@ -4403,7 +4400,7 @@ cifs_sb_tlink(struct cifs_sb_info *cifs_
kuid_t fsuid = current_fsuid();
int err;
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER))
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MULTIUSER))
return cifs_get_tlink(cifs_sb_master_tlink(cifs_sb));
spin_lock(&cifs_sb->tlink_tree_lock);
--- a/fs/smb/client/dfs_cache.c
+++ b/fs/smb/client/dfs_cache.c
@@ -1352,7 +1352,7 @@ int dfs_cache_remount_fs(struct cifs_sb_
* Force the use of prefix path to support failover on DFS paths that resolve to targets
* that have different prefix paths.
*/
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH;
+ atomic_or(CIFS_MOUNT_USE_PREFIX_PATH, &cifs_sb->mnt_cifs_flags);
refresh_tcon_referral(tcon, true);
return 0;
--- a/fs/smb/client/dir.c
+++ b/fs/smb/client/dir.c
@@ -97,7 +97,7 @@ char *__build_path_from_dentry_optional_
else
dfsplen = 0;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_USE_PREFIX_PATH)
pplen = cifs_sb->prepath ? strlen(cifs_sb->prepath) + 1 : 0;
s = dentry_path_raw(direntry, page, PATH_MAX);
@@ -124,7 +124,7 @@ char *__build_path_from_dentry_optional_
if (dfsplen) {
s -= dfsplen;
memcpy(s, tree, dfsplen);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_POSIX_PATHS) {
int i;
for (i = 0; i < dfsplen; i++) {
if (s[i] == '\\')
@@ -161,7 +161,7 @@ check_name(struct dentry *direntry, stru
le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength)))
return -ENAMETOOLONG;
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)) {
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_POSIX_PATHS)) {
for (i = 0; i < direntry->d_name.len; i++) {
if (direntry->d_name.name[i] == '\\') {
cifs_dbg(FYI, "Invalid file name\n");
@@ -376,7 +376,7 @@ retry_open:
.device = 0,
};
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SET_UID) {
args.uid = current_fsuid();
if (inode->i_mode & S_ISGID)
args.gid = inode->i_gid;
@@ -413,9 +413,9 @@ cifs_create_get_file_info:
if (server->ops->set_lease_key)
server->ops->set_lease_key(newinode, fid);
if ((*oplock & CIFS_CREATE_ACTION) && S_ISREG(newinode->i_mode)) {
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_DYNPERM)
newinode->i_mode = mode;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SET_UID) {
newinode->i_uid = current_fsuid();
if (inode->i_mode & S_ISGID)
newinode->i_gid = inode->i_gid;
@@ -539,8 +539,8 @@ cifs_atomic_open(struct inode *inode, st
}
if (file->f_flags & O_DIRECT &&
- CIFS_SB(inode->i_sb)->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO) {
- if (CIFS_SB(inode->i_sb)->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ cifs_sb_flags(CIFS_SB(inode->i_sb)) & CIFS_MOUNT_STRICT_IO) {
+ if (cifs_sb_flags(CIFS_SB(inode->i_sb)) & CIFS_MOUNT_NO_BRL)
file->f_op = &cifs_file_direct_nobrl_ops;
else
file->f_op = &cifs_file_direct_ops;
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -282,7 +282,7 @@ static int cifs_init_request(struct netf
open_file = file->private_data;
rreq->netfs_priv = file->private_data;
req->cfile = cifsFileInfo_get(open_file);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_RWPIDFORWARD)
req->pid = req->cfile->pid;
} else if (rreq->origin != NETFS_WRITEBACK) {
WARN_ON_ONCE(1);
@@ -896,7 +896,7 @@ void _cifsFileInfo_put(struct cifsFileIn
* close because it may cause a error when we open this file
* again and get at least level II oplock.
*/
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_STRICT_IO)
set_bit(CIFS_INO_INVALID_MAPPING, &cifsi->flags);
cifs_set_oplock_level(cifsi, 0);
}
@@ -949,7 +949,7 @@ int cifs_file_flush(const unsigned int x
struct cifs_tcon *tcon;
int rc;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NOSSYNC)
return 0;
if (cfile && (OPEN_FMODE(cfile->f_flags) & FMODE_WRITE)) {
@@ -1047,8 +1047,8 @@ int cifs_open(struct inode *inode, struc
inode, file->f_flags, full_path);
if (file->f_flags & O_DIRECT &&
- cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO) {
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ cifs_sb_flags(cifs_sb) & CIFS_MOUNT_STRICT_IO) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_BRL)
file->f_op = &cifs_file_direct_nobrl_ops;
else
file->f_op = &cifs_file_direct_ops;
@@ -1212,7 +1212,7 @@ cifs_relock_file(struct cifsFileInfo *cf
#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
if (cap_unix(tcon->ses) &&
(CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability)) &&
- ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0))
+ ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NOPOSIXBRL) == 0))
rc = cifs_push_posix_locks(cfile);
else
#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */
@@ -2008,7 +2008,7 @@ cifs_push_locks(struct cifsFileInfo *cfi
#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
if (cap_unix(tcon->ses) &&
(CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability)) &&
- ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0))
+ ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NOPOSIXBRL) == 0))
rc = cifs_push_posix_locks(cfile);
else
#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */
@@ -2416,7 +2416,7 @@ int cifs_flock(struct file *file, int cm
if (cap_unix(tcon->ses) &&
(CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability)) &&
- ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0))
+ ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NOPOSIXBRL) == 0))
posix_lck = true;
if (!lock && !unlock) {
@@ -2466,7 +2466,7 @@ int cifs_lock(struct file *file, int cmd
if (cap_unix(tcon->ses) &&
(CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability)) &&
- ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0))
+ ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NOPOSIXBRL) == 0))
posix_lck = true;
/*
* BB add code here to normalize offset and length to account for
@@ -2520,7 +2520,7 @@ struct cifsFileInfo *find_readable_file(
struct cifs_sb_info *cifs_sb = CIFS_SB(cifs_inode->netfs.inode.i_sb);
/* only filter by fsuid on multiuser mounts */
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER))
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MULTIUSER))
fsuid_only = false;
spin_lock(&cifs_inode->open_file_lock);
@@ -2576,7 +2576,7 @@ cifs_get_writable_file(struct cifsInodeI
cifs_sb = CIFS_SB(cifs_inode->netfs.inode.i_sb);
/* only filter by fsuid on multiuser mounts */
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER))
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MULTIUSER))
fsuid_only = false;
spin_lock(&cifs_inode->open_file_lock);
@@ -2785,7 +2785,7 @@ int cifs_fsync(struct file *file, loff_t
file, datasync);
tcon = tlink_tcon(smbfile->tlink);
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC)) {
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NOSSYNC)) {
server = tcon->ses->server;
if (server->ops->flush == NULL) {
rc = -ENOSYS;
@@ -2854,7 +2854,7 @@ cifs_writev(struct kiocb *iocb, struct i
if (rc <= 0)
goto out;
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) &&
+ if ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NOPOSIXBRL) &&
(cifs_find_lock_conflict(cfile, iocb->ki_pos, iov_iter_count(from),
server->vals->exclusive_lock_type, 0,
NULL, CIFS_WRITE_OP))) {
@@ -2890,7 +2890,7 @@ cifs_strict_writev(struct kiocb *iocb, s
if (CIFS_CACHE_WRITE(cinode)) {
if (cap_unix(tcon->ses) &&
(CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability)) &&
- ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0)) {
+ ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NOPOSIXBRL) == 0)) {
written = netfs_file_write_iter(iocb, from);
goto out;
}
@@ -2995,7 +2995,7 @@ cifs_strict_readv(struct kiocb *iocb, st
if (!CIFS_CACHE_READ(cinode))
return netfs_unbuffered_read_iter(iocb, to);
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0) {
+ if ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NOPOSIXBRL) == 0) {
if (iocb->ki_flags & IOCB_DIRECT)
return netfs_unbuffered_read_iter(iocb, to);
return netfs_buffered_read_iter(iocb, to);
@@ -3117,7 +3117,7 @@ bool is_size_safe_to_change(struct cifsI
struct cifs_sb_info *cifs_sb;
cifs_sb = CIFS_SB(cifsInode->netfs.inode.i_sb);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_DIRECT_IO) {
/* since no page cache to corrupt on directio
we can change size safely */
return true;
--- a/fs/smb/client/fs_context.c
+++ b/fs/smb/client/fs_context.c
@@ -1992,138 +1992,138 @@ smb3_cleanup_fs_context(struct smb3_fs_c
void smb3_update_mnt_flags(struct cifs_sb_info *cifs_sb)
{
struct smb3_fs_context *ctx = cifs_sb->ctx;
+ unsigned int sbflags = cifs_sb_flags(cifs_sb);
if (ctx->nodfs)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_DFS;
+ sbflags |= CIFS_MOUNT_NO_DFS;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_NO_DFS;
+ sbflags &= ~CIFS_MOUNT_NO_DFS;
if (ctx->noperm)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_PERM;
+ sbflags |= CIFS_MOUNT_NO_PERM;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_NO_PERM;
+ sbflags &= ~CIFS_MOUNT_NO_PERM;
if (ctx->setuids)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SET_UID;
+ sbflags |= CIFS_MOUNT_SET_UID;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_SET_UID;
+ sbflags &= ~CIFS_MOUNT_SET_UID;
if (ctx->setuidfromacl)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_UID_FROM_ACL;
+ sbflags |= CIFS_MOUNT_UID_FROM_ACL;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_UID_FROM_ACL;
+ sbflags &= ~CIFS_MOUNT_UID_FROM_ACL;
if (ctx->server_ino)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SERVER_INUM;
+ sbflags |= CIFS_MOUNT_SERVER_INUM;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_SERVER_INUM;
+ sbflags &= ~CIFS_MOUNT_SERVER_INUM;
if (ctx->remap)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MAP_SFM_CHR;
+ sbflags |= CIFS_MOUNT_MAP_SFM_CHR;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_MAP_SFM_CHR;
+ sbflags &= ~CIFS_MOUNT_MAP_SFM_CHR;
if (ctx->sfu_remap)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MAP_SPECIAL_CHR;
+ sbflags |= CIFS_MOUNT_MAP_SPECIAL_CHR;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_MAP_SPECIAL_CHR;
+ sbflags &= ~CIFS_MOUNT_MAP_SPECIAL_CHR;
if (ctx->no_xattr)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_XATTR;
+ sbflags |= CIFS_MOUNT_NO_XATTR;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_NO_XATTR;
+ sbflags &= ~CIFS_MOUNT_NO_XATTR;
if (ctx->sfu_emul)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_UNX_EMUL;
+ sbflags |= CIFS_MOUNT_UNX_EMUL;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_UNX_EMUL;
+ sbflags &= ~CIFS_MOUNT_UNX_EMUL;
if (ctx->nobrl)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_BRL;
+ sbflags |= CIFS_MOUNT_NO_BRL;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_NO_BRL;
+ sbflags &= ~CIFS_MOUNT_NO_BRL;
if (ctx->nohandlecache)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_HANDLE_CACHE;
+ sbflags |= CIFS_MOUNT_NO_HANDLE_CACHE;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_NO_HANDLE_CACHE;
+ sbflags &= ~CIFS_MOUNT_NO_HANDLE_CACHE;
if (ctx->nostrictsync)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NOSSYNC;
+ sbflags |= CIFS_MOUNT_NOSSYNC;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_NOSSYNC;
+ sbflags &= ~CIFS_MOUNT_NOSSYNC;
if (ctx->mand_lock)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NOPOSIXBRL;
+ sbflags |= CIFS_MOUNT_NOPOSIXBRL;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_NOPOSIXBRL;
+ sbflags &= ~CIFS_MOUNT_NOPOSIXBRL;
if (ctx->rwpidforward)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_RWPIDFORWARD;
+ sbflags |= CIFS_MOUNT_RWPIDFORWARD;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_RWPIDFORWARD;
+ sbflags &= ~CIFS_MOUNT_RWPIDFORWARD;
if (ctx->mode_ace)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MODE_FROM_SID;
+ sbflags |= CIFS_MOUNT_MODE_FROM_SID;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_MODE_FROM_SID;
+ sbflags &= ~CIFS_MOUNT_MODE_FROM_SID;
if (ctx->cifs_acl)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_CIFS_ACL;
+ sbflags |= CIFS_MOUNT_CIFS_ACL;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_CIFS_ACL;
+ sbflags &= ~CIFS_MOUNT_CIFS_ACL;
if (ctx->backupuid_specified)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_CIFS_BACKUPUID;
+ sbflags |= CIFS_MOUNT_CIFS_BACKUPUID;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_CIFS_BACKUPUID;
+ sbflags &= ~CIFS_MOUNT_CIFS_BACKUPUID;
if (ctx->backupgid_specified)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_CIFS_BACKUPGID;
+ sbflags |= CIFS_MOUNT_CIFS_BACKUPGID;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_CIFS_BACKUPGID;
+ sbflags &= ~CIFS_MOUNT_CIFS_BACKUPGID;
if (ctx->override_uid)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_OVERR_UID;
+ sbflags |= CIFS_MOUNT_OVERR_UID;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_OVERR_UID;
+ sbflags &= ~CIFS_MOUNT_OVERR_UID;
if (ctx->override_gid)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_OVERR_GID;
+ sbflags |= CIFS_MOUNT_OVERR_GID;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_OVERR_GID;
+ sbflags &= ~CIFS_MOUNT_OVERR_GID;
if (ctx->dynperm)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DYNPERM;
+ sbflags |= CIFS_MOUNT_DYNPERM;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_DYNPERM;
+ sbflags &= ~CIFS_MOUNT_DYNPERM;
if (ctx->fsc)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_FSCACHE;
+ sbflags |= CIFS_MOUNT_FSCACHE;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_FSCACHE;
+ sbflags &= ~CIFS_MOUNT_FSCACHE;
if (ctx->multiuser)
- cifs_sb->mnt_cifs_flags |= (CIFS_MOUNT_MULTIUSER |
- CIFS_MOUNT_NO_PERM);
+ sbflags |= CIFS_MOUNT_MULTIUSER | CIFS_MOUNT_NO_PERM;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_MULTIUSER;
+ sbflags &= ~CIFS_MOUNT_MULTIUSER;
if (ctx->strict_io)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_STRICT_IO;
+ sbflags |= CIFS_MOUNT_STRICT_IO;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_STRICT_IO;
+ sbflags &= ~CIFS_MOUNT_STRICT_IO;
if (ctx->direct_io)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO;
+ sbflags |= CIFS_MOUNT_DIRECT_IO;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_DIRECT_IO;
+ sbflags &= ~CIFS_MOUNT_DIRECT_IO;
if (ctx->mfsymlinks)
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MF_SYMLINKS;
+ sbflags |= CIFS_MOUNT_MF_SYMLINKS;
else
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_MF_SYMLINKS;
+ sbflags &= ~CIFS_MOUNT_MF_SYMLINKS;
if (ctx->mfsymlinks) {
if (ctx->sfu_emul) {
/*
@@ -2143,7 +2143,7 @@ void smb3_update_mnt_flags(struct cifs_s
cifs_dbg(VFS, "mount options mfsymlinks and sfu both enabled\n");
}
}
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_SHUTDOWN;
+ sbflags &= ~CIFS_MOUNT_SHUTDOWN;
- return;
+ atomic_set(&cifs_sb->mnt_cifs_flags, sbflags);
}
--- a/fs/smb/client/inode.c
+++ b/fs/smb/client/inode.c
@@ -63,18 +63,18 @@ static void cifs_set_ops(struct inode *i
switch (inode->i_mode & S_IFMT) {
case S_IFREG:
inode->i_op = &cifs_file_inode_ops;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_DIRECT_IO) {
set_bit(NETFS_ICTX_UNBUFFERED, &ictx->flags);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_BRL)
inode->i_fop = &cifs_file_direct_nobrl_ops;
else
inode->i_fop = &cifs_file_direct_ops;
- } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO) {
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ } else if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_STRICT_IO) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_BRL)
inode->i_fop = &cifs_file_strict_nobrl_ops;
else
inode->i_fop = &cifs_file_strict_ops;
- } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ } else if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_BRL)
inode->i_fop = &cifs_file_nobrl_ops;
else { /* not direct, send byte range locks */
inode->i_fop = &cifs_file_ops;
@@ -212,7 +212,7 @@ cifs_fattr_to_inode(struct inode *inode,
/* if dynperm is set, don't clobber existing mode */
if (inode->i_state & I_NEW ||
- !(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM))
+ !(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_DYNPERM))
inode->i_mode = fattr->cf_mode;
cifs_i->cifsAttrs = fattr->cf_cifsattrs;
@@ -259,7 +259,7 @@ cifs_fill_uniqueid(struct super_block *s
{
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM)
return;
fattr->cf_uniqueid = iunique(sb, ROOT_I);
@@ -329,7 +329,7 @@ cifs_unix_basic_to_fattr(struct cifs_fat
}
fattr->cf_uid = cifs_sb->ctx->linux_uid;
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID)) {
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_OVERR_UID)) {
u64 id = le64_to_cpu(info->Uid);
if (id < ((uid_t)-1)) {
kuid_t uid = make_kuid(&init_user_ns, id);
@@ -339,7 +339,7 @@ cifs_unix_basic_to_fattr(struct cifs_fat
}
fattr->cf_gid = cifs_sb->ctx->linux_gid;
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID)) {
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_OVERR_GID)) {
u64 id = le64_to_cpu(info->Gid);
if (id < ((gid_t)-1)) {
kgid_t gid = make_kgid(&init_user_ns, id);
@@ -393,7 +393,7 @@ static int update_inode_info(struct supe
*
* If file type or uniqueid is different, return error.
*/
- if (unlikely((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) &&
+ if (unlikely((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM) &&
CIFS_I(*inode)->uniqueid != fattr->cf_uniqueid)) {
CIFS_I(*inode)->time = 0; /* force reval */
return -ESTALE;
@@ -479,7 +479,7 @@ static int cifs_get_unix_fattr(const uns
cifs_fill_uniqueid(sb, fattr);
/* check for Minshall+French symlinks */
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MF_SYMLINKS) {
tmprc = check_mf_symlink(xid, tcon, cifs_sb, fattr, full_path);
cifs_dbg(FYI, "check_mf_symlink: %d\n", tmprc);
}
@@ -1092,7 +1092,7 @@ cifs_backup_query_path_info(int xid,
else if ((tcon->ses->capabilities &
tcon->ses->server->vals->cap_nt_find) == 0)
info.info_level = SMB_FIND_FILE_INFO_STANDARD;
- else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
+ else if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM)
info.info_level = SMB_FIND_FILE_ID_FULL_DIR_INFO;
else /* no srvino useful for fallback to some netapp */
info.info_level = SMB_FIND_FILE_DIRECTORY_INFO;
@@ -1120,7 +1120,7 @@ static void cifs_set_fattr_ino(int xid,
struct TCP_Server_Info *server = tcon->ses->server;
int rc;
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM)) {
if (*inode)
fattr->cf_uniqueid = CIFS_I(*inode)->uniqueid;
else
@@ -1383,14 +1383,14 @@ handle_mnt_opt:
#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */
/* query for SFU type info if supported and needed */
if ((fattr->cf_cifsattrs & ATTR_SYSTEM) &&
- (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)) {
+ (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_UNX_EMUL)) {
tmprc = cifs_sfu_type(fattr, full_path, cifs_sb, xid);
if (tmprc)
cifs_dbg(FYI, "cifs_sfu_type failed: %d\n", tmprc);
}
/* fill in 0777 bits from ACL */
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MODE_FROM_SID) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MODE_FROM_SID) {
rc = cifs_acl_to_fattr(cifs_sb, fattr, *inode,
true, full_path, fid);
if (rc == -EREMOTE)
@@ -1400,7 +1400,7 @@ handle_mnt_opt:
__func__, rc);
goto out;
}
- } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
+ } else if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_CIFS_ACL) {
rc = cifs_acl_to_fattr(cifs_sb, fattr, *inode,
false, full_path, fid);
if (rc == -EREMOTE)
@@ -1410,7 +1410,7 @@ handle_mnt_opt:
__func__, rc);
goto out;
}
- } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)
+ } else if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_UNX_EMUL)
/* fill in remaining high mode bits e.g. SUID, VTX */
cifs_sfu_mode(fattr, full_path, cifs_sb, xid);
else if (!(tcon->posix_extensions))
@@ -1420,7 +1420,7 @@ handle_mnt_opt:
/* check for Minshall+French symlinks */
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MF_SYMLINKS) {
tmprc = check_mf_symlink(xid, tcon, cifs_sb, fattr, full_path);
cifs_dbg(FYI, "check_mf_symlink: %d\n", tmprc);
}
@@ -1520,7 +1520,7 @@ static int smb311_posix_get_fattr(struct
* 3. Tweak fattr based on mount options
*/
/* check for Minshall+French symlinks */
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MF_SYMLINKS) {
tmprc = check_mf_symlink(xid, tcon, cifs_sb, fattr, full_path);
cifs_dbg(FYI, "check_mf_symlink: %d\n", tmprc);
}
@@ -1671,7 +1671,7 @@ struct inode *cifs_root_iget(struct supe
int len;
int rc;
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH)
+ if ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_USE_PREFIX_PATH)
&& cifs_sb->prepath) {
len = strlen(cifs_sb->prepath);
path = kzalloc(len + 2 /* leading sep + null */, GFP_KERNEL);
@@ -2162,7 +2162,7 @@ cifs_mkdir_qinfo(struct inode *parent, s
.mtime = NO_CHANGE_64,
.device = 0,
};
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SET_UID) {
args.uid = current_fsuid();
if (parent->i_mode & S_ISGID)
args.gid = parent->i_gid;
@@ -2180,14 +2180,14 @@ cifs_mkdir_qinfo(struct inode *parent, s
{
#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */
struct TCP_Server_Info *server = tcon->ses->server;
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) &&
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_CIFS_ACL) &&
(mode & S_IWUGO) == 0 && server->ops->mkdir_setinfo)
server->ops->mkdir_setinfo(inode, full_path, cifs_sb,
tcon, xid);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_DYNPERM)
inode->i_mode = (mode | S_IFDIR);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SET_UID) {
inode->i_uid = current_fsuid();
if (inode->i_mode & S_ISGID)
inode->i_gid = parent->i_gid;
@@ -2233,7 +2233,7 @@ cifs_posix_mkdir(struct inode *inode, st
/* no return info, go query for it */
goto posix_mkdir_get_info;
/*
- * BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if
+ * BB check (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SET_UID ) to see if
* need to set uid/gid.
*/
@@ -2750,7 +2750,7 @@ cifs_dentry_needs_reval(struct dentry *d
}
/* hardlinked files w/ noserverino get "special" treatment */
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) &&
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM) &&
S_ISREG(inode->i_mode) && inode->i_nlink != 1)
return true;
@@ -2791,7 +2791,7 @@ cifs_revalidate_mapping(struct inode *in
if (test_and_clear_bit(CIFS_INO_INVALID_MAPPING, flags)) {
/* for cache=singleclient, do not invalidate */
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RW_CACHE)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_RW_CACHE)
goto skip_invalidate;
cifs_inode->netfs.zero_point = cifs_inode->netfs.remote_i_size;
@@ -2975,12 +2975,12 @@ int cifs_getattr(struct mnt_idmap *idmap
* enabled, and the admin hasn't overridden them, set the ownership
* to the fsuid/fsgid of the current process.
*/
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER) &&
- !(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) &&
+ if ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MULTIUSER) &&
+ !(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_CIFS_ACL) &&
!tcon->unix_ext) {
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID))
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_OVERR_UID))
stat->uid = current_fsuid();
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID))
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_OVERR_GID))
stat->gid = current_fsgid();
}
return 0;
@@ -3150,7 +3150,7 @@ cifs_setattr_unix(struct dentry *direntr
xid = get_xid();
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_PERM)
attrs->ia_valid |= ATTR_FORCE;
rc = setattr_prepare(&nop_mnt_idmap, direntry, attrs);
@@ -3305,7 +3305,7 @@ cifs_setattr_nounix(struct dentry *diren
kgid_t gid = INVALID_GID;
struct inode *inode = d_inode(direntry);
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
- unsigned int sbflags = cifs_sb->mnt_cifs_flags;
+ unsigned int sbflags = cifs_sb_flags(cifs_sb);
struct cifsInodeInfo *cifsInode = CIFS_I(inode);
struct cifsFileInfo *cfile = NULL;
const char *full_path;
@@ -3381,8 +3381,8 @@ cifs_setattr_nounix(struct dentry *diren
if (attrs->ia_valid & ATTR_GID)
gid = attrs->ia_gid;
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) ||
- (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MODE_FROM_SID)) {
+ if ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_CIFS_ACL) ||
+ (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MODE_FROM_SID)) {
if (uid_valid(uid) || gid_valid(gid)) {
mode = NO_CHANGE_64;
rc = id_mode_to_cifs_acl(inode, full_path, &mode,
@@ -3419,8 +3419,8 @@ cifs_setattr_nounix(struct dentry *diren
if (attrs->ia_valid & ATTR_MODE) {
mode = attrs->ia_mode;
rc = 0;
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) ||
- (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MODE_FROM_SID) ||
+ if ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_CIFS_ACL) ||
+ (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MODE_FROM_SID) ||
posix) {
rc = id_mode_to_cifs_acl(inode, full_path, &mode,
INVALID_UID, INVALID_GID);
@@ -3443,7 +3443,7 @@ cifs_setattr_nounix(struct dentry *diren
dosattr = cifsInode->cifsAttrs | ATTR_READONLY;
/* fix up mode if we're not using dynperm */
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) == 0)
+ if ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_DYNPERM) == 0)
attrs->ia_mode = inode->i_mode & ~S_IWUGO;
} else if ((mode & S_IWUGO) &&
(cifsInode->cifsAttrs & ATTR_READONLY)) {
@@ -3454,7 +3454,7 @@ cifs_setattr_nounix(struct dentry *diren
dosattr |= ATTR_NORMAL;
/* reset local inode permissions to normal */
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)) {
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_DYNPERM)) {
attrs->ia_mode &= ~(S_IALLUGO);
if (S_ISDIR(inode->i_mode))
attrs->ia_mode |=
@@ -3463,7 +3463,7 @@ cifs_setattr_nounix(struct dentry *diren
attrs->ia_mode |=
cifs_sb->ctx->file_mode;
}
- } else if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)) {
+ } else if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_DYNPERM)) {
/* ignore mode change - ATTR_READONLY hasn't changed */
attrs->ia_valid &= ~ATTR_MODE;
}
--- a/fs/smb/client/ioctl.c
+++ b/fs/smb/client/ioctl.c
@@ -217,7 +217,7 @@ static int cifs_shutdown(struct super_bl
*/
case CIFS_GOING_FLAGS_LOGFLUSH:
case CIFS_GOING_FLAGS_NOLOGFLUSH:
- sbi->mnt_cifs_flags |= CIFS_MOUNT_SHUTDOWN;
+ atomic_or(CIFS_MOUNT_SHUTDOWN, &sbi->mnt_cifs_flags);
goto shutdown_good;
default:
rc = -EINVAL;
--- a/fs/smb/client/link.c
+++ b/fs/smb/client/link.c
@@ -593,14 +593,14 @@ cifs_symlink(struct mnt_idmap *idmap, st
break;
case CIFS_SYMLINK_TYPE_MFSYMLINKS:
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MF_SYMLINKS) {
rc = create_mf_symlink(xid, pTcon, cifs_sb,
full_path, symname);
}
break;
case CIFS_SYMLINK_TYPE_SFU:
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_UNX_EMUL) {
rc = __cifs_sfu_make_node(xid, inode, direntry, pTcon,
full_path, S_IFLNK,
0, symname);
--- a/fs/smb/client/misc.c
+++ b/fs/smb/client/misc.c
@@ -566,13 +566,13 @@ dump_smb(void *buf, int smb_buf_length)
void
cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb)
{
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM) {
struct cifs_tcon *tcon = NULL;
if (cifs_sb->master_tlink)
tcon = cifs_sb_master_tcon(cifs_sb);
- cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_SERVER_INUM;
+ atomic_andnot(CIFS_MOUNT_SERVER_INUM, &cifs_sb->mnt_cifs_flags);
cifs_sb->mnt_cifs_serverino_autodisabled = true;
cifs_dbg(VFS, "Autodisabling the use of server inode numbers on %s\n",
tcon ? tcon->tree_name : "new server");
@@ -674,11 +674,11 @@ void cifs_done_oplock_break(struct cifsI
bool
backup_cred(struct cifs_sb_info *cifs_sb)
{
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_BACKUPUID) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_CIFS_BACKUPUID) {
if (uid_eq(cifs_sb->ctx->backupuid, current_fsuid()))
return true;
}
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_BACKUPGID) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_CIFS_BACKUPGID) {
if (in_group_p(cifs_sb->ctx->backupgid))
return true;
}
@@ -1306,7 +1306,7 @@ int cifs_update_super_prepath(struct cif
convert_delimiter(cifs_sb->prepath, CIFS_DIR_SEP(cifs_sb));
}
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH;
+ atomic_or(CIFS_MOUNT_USE_PREFIX_PATH, &cifs_sb->mnt_cifs_flags);
return 0;
}
@@ -1335,7 +1335,7 @@ int cifs_inval_name_dfs_link_error(const
* look up or tcon is not DFS.
*/
if (strlen(full_path) < 2 || !cifs_sb ||
- (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS) ||
+ (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_DFS) ||
!is_tcon_dfs(tcon))
return 0;
--- a/fs/smb/client/readdir.c
+++ b/fs/smb/client/readdir.c
@@ -122,7 +122,7 @@ retry:
* want to clobber the existing one with the one that
* the readdir code created.
*/
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM))
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM))
fattr->cf_uniqueid = CIFS_I(inode)->uniqueid;
/*
@@ -216,11 +216,11 @@ out_reparse:
* may look wrong since the inodes may not have timed out by the time
* "ls" does a stat() call on them.
*/
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) ||
- (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MODE_FROM_SID))
+ if ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_CIFS_ACL) ||
+ (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MODE_FROM_SID))
fattr->cf_flags |= CIFS_FATTR_NEED_REVAL;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL &&
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_UNX_EMUL &&
fattr->cf_cifsattrs & ATTR_SYSTEM) {
if (fattr->cf_eof == 0) {
fattr->cf_mode &= ~S_IFMT;
@@ -396,7 +396,7 @@ ffirst_retry:
else if ((tcon->ses->capabilities &
tcon->ses->server->vals->cap_nt_find) == 0) {
cifsFile->srch_inf.info_level = SMB_FIND_FILE_INFO_STANDARD;
- } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
+ } else if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM) {
cifsFile->srch_inf.info_level = SMB_FIND_FILE_ID_FULL_DIR_INFO;
} else /* not srvinos - BB fixme add check for backlevel? */ {
cifsFile->srch_inf.info_level = SMB_FIND_FILE_FULL_DIRECTORY_INFO;
@@ -413,7 +413,7 @@ ffirst_retry:
if (rc == 0) {
cifsFile->invalidHandle = false;
} else if ((rc == -EOPNOTSUPP) &&
- (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
+ (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM)) {
cifs_autodisable_serverino(cifs_sb);
goto ffirst_retry;
}
@@ -1025,14 +1025,14 @@ static int cifs_filldir(char *find_entry
break;
}
- if (de.ino && (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
+ if (de.ino && (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SERVER_INUM)) {
fattr.cf_uniqueid = de.ino;
} else {
fattr.cf_uniqueid = iunique(sb, ROOT_I);
cifs_autodisable_serverino(cifs_sb);
}
- if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) &&
+ if ((cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MF_SYMLINKS) &&
couldbe_mf_symlink(&fattr))
/*
* trying to get the type and mode can be slow,
--- a/fs/smb/client/reparse.c
+++ b/fs/smb/client/reparse.c
@@ -83,7 +83,7 @@ static int create_native_symlink(const u
.symlink_target = symlink_target,
};
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) &&
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_POSIX_PATHS) &&
symroot && symname[0] == '/') {
/*
* This is a request to create an absolute symlink on the server
@@ -164,7 +164,7 @@ static int create_native_symlink(const u
* mask these characters in NT object prefix by '_' and then change
* them back.
*/
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) && symname[0] == '/')
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_POSIX_PATHS) && symname[0] == '/')
sym[0] = sym[1] = sym[2] = sym[5] = '_';
path = cifs_convert_path_to_utf16(sym, cifs_sb);
@@ -173,7 +173,7 @@ static int create_native_symlink(const u
goto out;
}
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) && symname[0] == '/') {
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_POSIX_PATHS) && symname[0] == '/') {
sym[0] = '\\';
sym[1] = sym[2] = '?';
sym[5] = ':';
@@ -197,7 +197,7 @@ static int create_native_symlink(const u
slen = 2 * UniStrnlen((wchar_t *)path, REPARSE_SYM_PATH_MAX);
poff = 0;
plen = slen;
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) && symname[0] == '/') {
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_POSIX_PATHS) && symname[0] == '/') {
/*
* For absolute NT symlinks skip leading "\\??\\" in PrintName as
* PrintName is user visible location in DOS/Win32 format (not in NT format).
@@ -822,7 +822,7 @@ int smb2_parse_native_symlink(char **tar
goto out;
}
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) &&
+ if (!(cifs_sb_flags(cifs_sb) & CIFS_MOUNT_POSIX_PATHS) &&
symroot && !relative) {
/*
* This is an absolute symlink from the server which does not
--- a/fs/smb/client/reparse.h
+++ b/fs/smb/client/reparse.h
@@ -32,7 +32,7 @@ static inline kuid_t wsl_make_kuid(struc
{
u32 uid = le32_to_cpu(*(__le32 *)ptr);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_OVERR_UID)
return cifs_sb->ctx->linux_uid;
return make_kuid(current_user_ns(), uid);
}
@@ -42,7 +42,7 @@ static inline kgid_t wsl_make_kgid(struc
{
u32 gid = le32_to_cpu(*(__le32 *)ptr);
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_OVERR_GID)
return cifs_sb->ctx->linux_gid;
return make_kgid(current_user_ns(), gid);
}
--- a/fs/smb/client/smb1ops.c
+++ b/fs/smb/client/smb1ops.c
@@ -1138,7 +1138,7 @@ cifs_make_node(unsigned int xid, struct
.mtime = NO_CHANGE_64,
.device = dev,
};
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_SET_UID) {
args.uid = current_fsuid();
args.gid = current_fsgid();
} else {
@@ -1157,7 +1157,7 @@ cifs_make_node(unsigned int xid, struct
if (rc == 0)
d_instantiate(dentry, newinode);
return rc;
- } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
+ } else if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_UNX_EMUL) {
/*
* Check if mounted with mount parm 'sfu' mount parm.
* SFU emulation should work with all servers
--- a/fs/smb/client/smb2file.c
+++ b/fs/smb/client/smb2file.c
@@ -93,7 +93,7 @@ int smb2_fix_symlink_target_type(char **
* POSIX server does not distinguish between symlinks to file and
* symlink directory. So nothing is needed to fix on the client side.
*/
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_POSIX_PATHS)
return 0;
if (!*target)
--- a/fs/smb/client/smb2misc.c
+++ b/fs/smb/client/smb2misc.c
@@ -496,9 +496,9 @@ cifs_convert_path_to_utf16(const char *f
__le16 *to;
int map_type;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SFM_CHR)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MAP_SFM_CHR)
map_type = SFM_MAP_UNI_RSVD;
- else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
+ else if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_MAP_SPECIAL_CHR)
map_type = SFU_MAP_UNI_RSVD;
else
map_type = NO_MAP_UNI_RSVD;
--- a/fs/smb/client/smb2ops.c
+++ b/fs/smb/client/smb2ops.c
@@ -1008,7 +1008,7 @@ smb2_is_path_accessible(const unsigned i
rc = -EREMOTE;
}
if (rc == -EREMOTE && IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) &&
- (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS))
+ (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_DFS))
rc = -EOPNOTSUPP;
goto out;
}
@@ -5563,7 +5563,7 @@ static int smb2_make_node(unsigned int x
* supports block and char device, socket & fifo,
* and was used by default in earlier versions of Windows
*/
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_UNX_EMUL) {
rc = cifs_sfu_make_node(xid, inode, dentry, tcon,
full_path, mode, dev);
} else if (CIFS_REPARSE_SUPPORT(tcon)) {
--- a/fs/smb/client/smb2pdu.c
+++ b/fs/smb/client/smb2pdu.c
@@ -3118,7 +3118,7 @@ SMB2_open_init(struct cifs_tcon *tcon, s
bool set_mode;
bool set_owner;
- if ((oparms->cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MODE_FROM_SID) &&
+ if ((cifs_sb_flags(oparms->cifs_sb) & CIFS_MOUNT_MODE_FROM_SID) &&
(oparms->mode != ACL_NO_MODE))
set_mode = true;
else {
@@ -3126,7 +3126,7 @@ SMB2_open_init(struct cifs_tcon *tcon, s
oparms->mode = ACL_NO_MODE;
}
- if (oparms->cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UID_FROM_ACL)
+ if (cifs_sb_flags(oparms->cifs_sb) & CIFS_MOUNT_UID_FROM_ACL)
set_owner = true;
else
set_owner = false;
--- a/fs/smb/client/xattr.c
+++ b/fs/smb/client/xattr.c
@@ -150,7 +150,7 @@ static int cifs_xattr_set(const struct x
break;
}
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_XATTR)
goto out;
if (pTcon->ses->server->ops->set_EA) {
@@ -310,7 +310,7 @@ static int cifs_xattr_get(const struct x
break;
}
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_XATTR)
goto out;
if (pTcon->ses->server->ops->query_all_EAs)
@@ -399,7 +399,7 @@ ssize_t cifs_listxattr(struct dentry *di
if (unlikely(cifs_forced_shutdown(cifs_sb)))
return -EIO;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ if (cifs_sb_flags(cifs_sb) & CIFS_MOUNT_NO_XATTR)
return -EOPNOTSUPP;
tlink = cifs_sb_tlink(cifs_sb);
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2026-09-17 15:17 ` [PATCH 6.18 1245/1250] smb: client: use atomic_t for mnt_cifs_flags Greg Kroah-Hartman
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