@@ -62,7 +62,7 @@ extern int cifs_rmdir(struct inode *, struct dentry *);
extern int cifs_rename(struct inode *, struct dentry *, struct inode *,
struct dentry *);
extern int cifs_revalidate_file(struct file *filp);
-extern int cifs_revalidate_dentry(struct dentry *);
+extern int cifs_revalidate_dentry(struct dentry *, bool, bool);
extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
extern int cifs_setattr(struct dentry *, struct iattr *);
@@ -396,6 +396,9 @@ struct cifsInodeInfo {
bool clientCanCacheAll:1; /* read and writebehind oplock */
bool delete_pending:1; /* DELETE_ON_CLOSE is set */
bool invalid_mapping:1; /* pagecache is invalid */
+ bool cifsAttrs_valid:1; /* stored cifs attributes are valid */
+ bool btime_valid:1; /* stored creation time is valid */
+ struct timespec btime; /* creation time */
u64 server_eof; /* current file size on server */
u64 uniqueid; /* server inode number */
struct inode vfs_inode;
@@ -508,6 +511,7 @@ struct dfs_info3_param {
#define CIFS_FATTR_DELETE_PENDING 0x2
#define CIFS_FATTR_NEED_REVAL 0x4
#define CIFS_FATTR_INO_COLLISION 0x8
+#define CIFS_FATTR_WINATTRS_VALID 0x10 /* T if cf_btime and cf_cifsattrs valid */
struct cifs_fattr {
u32 cf_flags;
@@ -524,6 +528,7 @@ struct cifs_fattr {
struct timespec cf_atime;
struct timespec cf_mtime;
struct timespec cf_ctime;
+ struct timespec cf_btime;
};
static inline void free_dfs_info_param(struct dfs_info3_param *param)
@@ -778,7 +778,7 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
int isValid = 1;
if (direntry->d_inode) {
- if (cifs_revalidate_dentry(direntry))
+ if (cifs_revalidate_dentry(direntry, false, false))
return 0;
} else {
cFYI(1, "neg dentry 0x%p name = %s",
@@ -136,7 +136,11 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM))
inode->i_mode = fattr->cf_mode;
- cifs_i->cifsAttrs = fattr->cf_cifsattrs;
+ if (fattr->cf_flags & CIFS_FATTR_WINATTRS_VALID) {
+ cifs_i->cifsAttrs = fattr->cf_cifsattrs;
+ cifs_i->btime = fattr->cf_btime;
+ cifs_i->btime_valid = true;
+ }
if (fattr->cf_flags & CIFS_FATTR_NEED_REVAL)
cifs_i->time = 0;
@@ -468,6 +472,7 @@ cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info,
struct cifs_sb_info *cifs_sb, bool adjust_tz)
{
memset(fattr, 0, sizeof(*fattr));
+ fattr->cf_flags = CIFS_FATTR_WINATTRS_VALID;
fattr->cf_cifsattrs = le32_to_cpu(info->Attributes);
if (info->DeletePending)
fattr->cf_flags |= CIFS_FATTR_DELETE_PENDING;
@@ -479,6 +484,7 @@ cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info,
fattr->cf_ctime = cifs_NTtimeToUnix(info->ChangeTime);
fattr->cf_mtime = cifs_NTtimeToUnix(info->LastWriteTime);
+ fattr->cf_btime = cifs_NTtimeToUnix(info->CreationTime);
if (adjust_tz) {
fattr->cf_ctime.tv_sec += cifs_sb->tcon->ses->server->timeAdj;
@@ -1591,7 +1597,8 @@ check_inval:
}
/* revalidate a dentry's inode attributes */
-int cifs_revalidate_dentry(struct dentry *dentry)
+int cifs_revalidate_dentry(struct dentry *dentry, bool want_extra_bits,
+ bool force)
{
int xid;
int rc = 0;
@@ -1604,7 +1611,7 @@ int cifs_revalidate_dentry(struct dentry *dentry)
xid = GetXid();
- if (!cifs_inode_needs_reval(inode))
+ if (!force && !cifs_inode_needs_reval(inode))
goto check_inval;
/* can not safely grab the rename sem here if rename calls revalidate
@@ -1619,9 +1626,12 @@ int cifs_revalidate_dentry(struct dentry *dentry)
"jiffies %ld", full_path, inode, inode->i_count.counter,
dentry, dentry->d_time, jiffies);
- if (CIFS_SB(sb)->tcon->unix_ext)
+ if (CIFS_SB(sb)->tcon->unix_ext) {
rc = cifs_get_inode_info_unix(&inode, full_path, sb, xid);
- else
+ if (rc != 0)
+ goto check_inval;
+ }
+ if (!CIFS_SB(sb)->tcon->unix_ext || want_extra_bits)
rc = cifs_get_inode_info(&inode, full_path, NULL, sb,
xid, NULL);
@@ -1637,13 +1647,55 @@ check_inval:
int cifs_getattr(struct vfsmount *mnt, struct dentry *dentry,
struct kstat *stat)
{
- int err = cifs_revalidate_dentry(dentry);
- if (!err) {
- generic_fillattr(dentry->d_inode, stat);
- stat->blksize = CIFS_MAX_MSGSIZE;
- stat->ino = CIFS_I(dentry->d_inode)->uniqueid;
- }
- return err;
+ struct cifsInodeInfo *cifs_i = CIFS_I(dentry->d_inode);
+ struct cifs_sb_info *cifs_sb = CIFS_SB(dentry->d_sb);
+ unsigned force = stat->query_flags & AT_FORCE_ATTR_SYNC;
+ bool want_extra_bits = false;
+ u64 iflag;
+ u32 attrs;
+ int err;
+
+ if (stat->request_mask & XSTAT_REQUEST_BTIME && !cifs_i->btime_valid) {
+ want_extra_bits = true;
+ force = true;
+ }
+
+ if (stat->request_mask & XSTAT_REQUEST_INODE_FLAGS) {
+ want_extra_bits = true;
+ if (!cifs_i->cifsAttrs_valid)
+ force = true;
+ }
+
+ if (force || stat->request_mask & XSTAT_REQUEST__BASIC_STATS) {
+ err = cifs_revalidate_dentry(dentry, want_extra_bits, force);
+ if (err)
+ return err;
+ }
+
+ generic_fillattr(&cifs_i->vfs_inode, stat);
+ stat->blksize = CIFS_MAX_MSGSIZE;
+
+ /* we don't promise an inode number if we made one up */
+ stat->ino = cifs_i->uniqueid;
+ if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM))
+ stat->result_mask &= ~XSTAT_REQUEST_INO;
+ if (cifs_i->btime_valid) {
+ stat->btime = cifs_i->btime;
+ stat->result_mask |= XSTAT_REQUEST_BTIME;
+ }
+ attrs = cifs_i->cifsAttrs;
+ iflag = 0;
+ if (attrs & ATTR_READONLY) iflag |= FS_IMMUTABLE_FL;
+ if (attrs & ATTR_HIDDEN) iflag |= FS_HIDDEN_FL;
+ if (attrs & ATTR_SYSTEM) iflag |= FS_SYSTEM_FL;
+ if (attrs & ATTR_ARCHIVE) iflag |= FS_ARCHIVE_FL;
+ if (attrs & ATTR_TEMPORARY) iflag |= FS_TEMPORARY_FL;
+ if (attrs & ATTR_REPARSE) iflag |= FS_REPARSE_POINT_FL;
+ if (attrs & ATTR_COMPRESSED) iflag |= FS_COMPR_FL;
+ if (attrs & ATTR_OFFLINE) iflag |= FS_OFFLINE_FL;
+ if (attrs & ATTR_ENCRYPTED) iflag |= FS_ENCRYPTED_FL;
+ stat->inode_flags |= iflag;
+ return 0;
}
static int cifs_truncate_page(struct address_space *mapping, loff_t from)