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-rw-r--r--fs/cifs/cifsglob.h9
-rw-r--r--fs/cifs/connect.c3
-rw-r--r--fs/cifs/file.c23
-rw-r--r--fs/cifs/inode.c9
-rw-r--r--fs/cifs/misc.c17
-rw-r--r--fs/cifs/smb1ops.c8
-rw-r--r--fs/cifs/smb2misc.c32
-rw-r--r--fs/cifs/smb2ops.c58
-rw-r--r--fs/cifs/smb2pdu.c2
-rw-r--r--fs/cifs/smb2pdu.h2
10 files changed, 92 insertions, 71 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 600bb838c15b..f166fcb48ac0 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -246,8 +246,9 @@ struct smb_version_operations {
int (*check_message)(char *, unsigned int, struct TCP_Server_Info *);
bool (*is_oplock_break)(char *, struct TCP_Server_Info *);
int (*handle_cancelled_mid)(char *, struct TCP_Server_Info *);
- void (*downgrade_oplock)(struct TCP_Server_Info *,
- struct cifsInodeInfo *, bool);
+ void (*downgrade_oplock)(struct TCP_Server_Info *server,
+ struct cifsInodeInfo *cinode, __u32 oplock,
+ unsigned int epoch, bool *purge_cache);
/* process transaction2 response */
bool (*check_trans2)(struct mid_q_entry *, struct TCP_Server_Info *,
char *, int);
@@ -1092,6 +1093,8 @@ struct cifsFileInfo {
unsigned int f_flags;
bool invalidHandle:1; /* file closed via session abend */
bool oplock_break_cancelled:1;
+ unsigned int oplock_epoch; /* epoch from the lease break */
+ __u32 oplock_level; /* oplock/lease level from the lease break */
int count;
spinlock_t file_info_lock; /* protects four flag/count fields above */
struct mutex fh_mutex; /* prevents reopen race after dead ses*/
@@ -1223,7 +1226,7 @@ struct cifsInodeInfo {
unsigned int epoch; /* used to track lease state changes */
#define CIFS_INODE_PENDING_OPLOCK_BREAK (0) /* oplock break in progress */
#define CIFS_INODE_PENDING_WRITERS (1) /* Writes in progress */
-#define CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2 (2) /* Downgrade oplock to L2 */
+#define CIFS_INODE_FLAG_UNUSED (2) /* Unused flag */
#define CIFS_INO_DELETE_PENDING (3) /* delete pending on server */
#define CIFS_INO_INVALID_MAPPING (4) /* pagecache is invalid */
#define CIFS_INO_LOCK (5) /* lock bit for synchronization */
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 58e7288e5151..64e52374ecc2 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -4324,9 +4324,12 @@ cifs_construct_tcon(struct cifs_sb_info *cifs_sb, kuid_t fsuid)
vol_info->retry = master_tcon->retry;
vol_info->nocase = master_tcon->nocase;
vol_info->local_lease = master_tcon->local_lease;
+ vol_info->resilient = master_tcon->use_resilient;
+ vol_info->persistent = master_tcon->use_persistent;
vol_info->no_linux_ext = !master_tcon->unix_ext;
vol_info->sectype = master_tcon->ses->sectype;
vol_info->sign = master_tcon->ses->sign;
+ vol_info->seal = master_tcon->seal;
rc = cifs_set_vol_auth(vol_info, master_tcon->ses);
if (rc) {
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 662977b8d6ae..6c77a96437e6 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -3496,7 +3496,7 @@ cifs_read(struct file *file, char *read_data, size_t read_size, loff_t *offset)
* than it negotiated since it will refuse the read
* then.
*/
- if ((tcon->ses) && !(tcon->ses->capabilities &
+ if (!(tcon->ses->capabilities &
tcon->ses->server->vals->cap_large_files)) {
current_read_size = min_t(uint,
current_read_size, CIFSMaxBufSize);
@@ -3753,7 +3753,8 @@ readpages_get_pages(struct address_space *mapping, struct list_head *page_list,
break;
__SetPageLocked(page);
- if (add_to_page_cache_locked(page, mapping, page->index, gfp)) {
+ rc = add_to_page_cache_locked(page, mapping, page->index, gfp);
+ if (rc) {
__ClearPageLocked(page);
break;
}
@@ -3769,6 +3770,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
struct list_head *page_list, unsigned num_pages)
{
int rc;
+ int err = 0;
struct list_head tmplist;
struct cifsFileInfo *open_file = file->private_data;
struct cifs_sb_info *cifs_sb = CIFS_FILE_SB(file);
@@ -3809,7 +3811,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
* the order of declining indexes. When we put the pages in
* the rdata->pages, then we want them in increasing order.
*/
- while (!list_empty(page_list)) {
+ while (!list_empty(page_list) && !err) {
unsigned int i, nr_pages, bytes, rsize;
loff_t offset;
struct page *page, *tpage;
@@ -3832,9 +3834,10 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
return 0;
}
- rc = readpages_get_pages(mapping, page_list, rsize, &tmplist,
+ nr_pages = 0;
+ err = readpages_get_pages(mapping, page_list, rsize, &tmplist,
&nr_pages, &offset, &bytes);
- if (rc) {
+ if (!nr_pages) {
add_credits_and_wake_if(server, credits, 0);
break;
}
@@ -4135,12 +4138,13 @@ void cifs_oplock_break(struct work_struct *work)
struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
struct TCP_Server_Info *server = tcon->ses->server;
int rc = 0;
+ bool purge_cache = false;
wait_on_bit(&cinode->flags, CIFS_INODE_PENDING_WRITERS,
TASK_UNINTERRUPTIBLE);
- server->ops->downgrade_oplock(server, cinode,
- test_bit(CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2, &cinode->flags));
+ server->ops->downgrade_oplock(server, cinode, cfile->oplock_level,
+ cfile->oplock_epoch, &purge_cache);
if (!CIFS_CACHE_WRITE(cinode) && CIFS_CACHE_READ(cinode) &&
cifs_has_mand_locks(cinode)) {
@@ -4155,18 +4159,21 @@ void cifs_oplock_break(struct work_struct *work)
else
break_lease(inode, O_WRONLY);
rc = filemap_fdatawrite(inode->i_mapping);
- if (!CIFS_CACHE_READ(cinode)) {
+ if (!CIFS_CACHE_READ(cinode) || purge_cache) {
rc = filemap_fdatawait(inode->i_mapping);
mapping_set_error(inode->i_mapping, rc);
cifs_zap_mapping(inode);
}
cifs_dbg(FYI, "Oplock flush inode %p rc %d\n", inode, rc);
+ if (CIFS_CACHE_WRITE(cinode))
+ goto oplock_break_ack;
}
rc = cifs_push_locks(cfile);
if (rc)
cifs_dbg(VFS, "Push locks rc = %d\n", rc);
+oplock_break_ack:
/*
* releasing stale oplock after recent reconnect of smb session using
* a now incorrect file handle is not a data integrity issue but do
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index bdce714e9448..b76e73395299 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -2210,6 +2210,15 @@ set_size_out:
if (rc == 0) {
cifsInode->server_eof = attrs->ia_size;
cifs_setsize(inode, attrs->ia_size);
+
+ /*
+ * The man page of truncate says if the size changed,
+ * then the st_ctime and st_mtime fields for the file
+ * are updated.
+ */
+ attrs->ia_ctime = attrs->ia_mtime = current_time(inode);
+ attrs->ia_valid |= ATTR_CTIME | ATTR_MTIME;
+
cifs_truncate_page(inode->i_mapping, inode->i_size);
}
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 76f1649ab444..d0e024856c0d 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -473,21 +473,10 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv)
set_bit(CIFS_INODE_PENDING_OPLOCK_BREAK,
&pCifsInode->flags);
- /*
- * Set flag if the server downgrades the oplock
- * to L2 else clear.
- */
- if (pSMB->OplockLevel)
- set_bit(
- CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
- &pCifsInode->flags);
- else
- clear_bit(
- CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
- &pCifsInode->flags);
-
- cifs_queue_oplock_break(netfile);
+ netfile->oplock_epoch = 0;
+ netfile->oplock_level = pSMB->OplockLevel;
netfile->oplock_break_cancelled = false;
+ cifs_queue_oplock_break(netfile);
spin_unlock(&tcon->open_file_lock);
spin_unlock(&cifs_tcp_ses_lock);
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 483458340b10..9b271ae641c1 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -379,12 +379,10 @@ coalesce_t2(char *second_buf, struct smb_hdr *target_hdr)
static void
cifs_downgrade_oplock(struct TCP_Server_Info *server,
- struct cifsInodeInfo *cinode, bool set_level2)
+ struct cifsInodeInfo *cinode, __u32 oplock,
+ unsigned int epoch, bool *purge_cache)
{
- if (set_level2)
- cifs_set_oplock_level(cinode, OPLOCK_READ);
- else
- cifs_set_oplock_level(cinode, 0);
+ cifs_set_oplock_level(cinode, oplock);
}
static bool
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index ff2ad15f67d6..0c6e5450ff76 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -496,7 +496,7 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp,
cifs_dbg(FYI, "found in the open list\n");
cifs_dbg(FYI, "lease key match, lease break 0x%x\n",
- le32_to_cpu(rsp->NewLeaseState));
+ lease_state);
if (ack_req)
cfile->oplock_break_cancelled = false;
@@ -505,17 +505,8 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp,
set_bit(CIFS_INODE_PENDING_OPLOCK_BREAK, &cinode->flags);
- /*
- * Set or clear flags depending on the lease state being READ.
- * HANDLE caching flag should be added when the client starts
- * to defer closing remote file handles with HANDLE leases.
- */
- if (lease_state & SMB2_LEASE_READ_CACHING_HE)
- set_bit(CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
- &cinode->flags);
- else
- clear_bit(CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
- &cinode->flags);
+ cfile->oplock_epoch = le16_to_cpu(rsp->Epoch);
+ cfile->oplock_level = lease_state;
cifs_queue_oplock_break(cfile);
kfree(lw);
@@ -538,7 +529,7 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp,
cifs_dbg(FYI, "found in the pending open list\n");
cifs_dbg(FYI, "lease key match, lease break 0x%x\n",
- le32_to_cpu(rsp->NewLeaseState));
+ lease_state);
open->oplock = lease_state;
}
@@ -650,18 +641,9 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
set_bit(CIFS_INODE_PENDING_OPLOCK_BREAK,
&cinode->flags);
- /*
- * Set flag if the server downgrades the oplock
- * to L2 else clear.
- */
- if (rsp->OplockLevel)
- set_bit(
- CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
- &cinode->flags);
- else
- clear_bit(
- CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
- &cinode->flags);
+ cfile->oplock_epoch = 0;
+ cfile->oplock_level = rsp->OplockLevel;
+
spin_unlock(&cfile->file_info_lock);
cifs_queue_oplock_break(cfile);
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 951c444d83e7..d2cfba90d9f8 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -652,7 +652,7 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
return rc;
}
- len = sizeof(ea) + ea_name_len + ea_value_len + 1;
+ len = sizeof(*ea) + ea_name_len + ea_value_len + 1;
ea = kzalloc(len, GFP_KERNEL);
if (ea == NULL) {
SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
@@ -1755,6 +1755,12 @@ static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon,
inode = d_inode(cfile->dentry);
cifsi = CIFS_I(inode);
+ /*
+ * We zero the range through ioctl, so we need remove the page caches
+ * first, otherwise the data may be inconsistent with the server.
+ */
+ truncate_pagecache_range(inode, offset, offset + len - 1);
+
/* if file not oplocked can't be sure whether asking to extend size */
if (!CIFS_CACHE_READ(cifsi))
if (keep_size == false) {
@@ -1824,6 +1830,12 @@ static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon,
return rc;
}
+ /*
+ * We implement the punch hole through ioctl, so we need remove the page
+ * caches first, otherwise the data may be inconsistent with the server.
+ */
+ truncate_pagecache_range(inode, offset, offset + len - 1);
+
cifs_dbg(FYI, "offset %lld len %lld", offset, len);
fsctl_buf.FileOffset = cpu_to_le64(offset);
@@ -1923,22 +1935,38 @@ static long smb3_fallocate(struct file *file, struct cifs_tcon *tcon, int mode,
static void
smb2_downgrade_oplock(struct TCP_Server_Info *server,
- struct cifsInodeInfo *cinode, bool set_level2)
+ struct cifsInodeInfo *cinode, __u32 oplock,
+ unsigned int epoch, bool *purge_cache)
{
- if (set_level2)
- server->ops->set_oplock_level(cinode, SMB2_OPLOCK_LEVEL_II,
- 0, NULL);
- else
- server->ops->set_oplock_level(cinode, 0, 0, NULL);
+ server->ops->set_oplock_level(cinode, oplock, 0, NULL);
}
static void
-smb21_downgrade_oplock(struct TCP_Server_Info *server,
- struct cifsInodeInfo *cinode, bool set_level2)
+smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
+ unsigned int epoch, bool *purge_cache);
+
+static void
+smb3_downgrade_oplock(struct TCP_Server_Info *server,
+ struct cifsInodeInfo *cinode, __u32 oplock,
+ unsigned int epoch, bool *purge_cache)
{
- server->ops->set_oplock_level(cinode,
- set_level2 ? SMB2_LEASE_READ_CACHING_HE :
- 0, 0, NULL);
+ unsigned int old_state = cinode->oplock;
+ unsigned int old_epoch = cinode->epoch;
+ unsigned int new_state;
+
+ if (epoch > old_epoch) {
+ smb21_set_oplock_level(cinode, oplock, 0, NULL);
+ cinode->epoch = epoch;
+ }
+
+ new_state = cinode->oplock;
+ *purge_cache = false;
+
+ if ((old_state & CIFS_CACHE_READ_FLG) != 0 &&
+ (new_state & CIFS_CACHE_READ_FLG) == 0)
+ *purge_cache = true;
+ else if (old_state == new_state && (epoch - old_epoch > 1))
+ *purge_cache = true;
}
static void
@@ -2941,7 +2969,7 @@ struct smb_version_operations smb21_operations = {
.print_stats = smb2_print_stats,
.is_oplock_break = smb2_is_valid_oplock_break,
.handle_cancelled_mid = smb2_handle_cancelled_mid,
- .downgrade_oplock = smb21_downgrade_oplock,
+ .downgrade_oplock = smb2_downgrade_oplock,
.need_neg = smb2_need_neg,
.negotiate = smb2_negotiate,
.negotiate_wsize = smb2_negotiate_wsize,
@@ -3036,7 +3064,7 @@ struct smb_version_operations smb30_operations = {
.dump_share_caps = smb2_dump_share_caps,
.is_oplock_break = smb2_is_valid_oplock_break,
.handle_cancelled_mid = smb2_handle_cancelled_mid,
- .downgrade_oplock = smb21_downgrade_oplock,
+ .downgrade_oplock = smb3_downgrade_oplock,
.need_neg = smb2_need_neg,
.negotiate = smb2_negotiate,
.negotiate_wsize = smb2_negotiate_wsize,
@@ -3141,7 +3169,7 @@ struct smb_version_operations smb311_operations = {
.dump_share_caps = smb2_dump_share_caps,
.is_oplock_break = smb2_is_valid_oplock_break,
.handle_cancelled_mid = smb2_handle_cancelled_mid,
- .downgrade_oplock = smb21_downgrade_oplock,
+ .downgrade_oplock = smb3_downgrade_oplock,
.need_neg = smb2_need_neg,
.negotiate = smb2_negotiate,
.negotiate_wsize = smb2_negotiate_wsize,
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 1c87a429ce72..2097b5fd51ba 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -942,6 +942,8 @@ SMB2_auth_kerberos(struct SMB2_sess_data *sess_data)
spnego_key = cifs_get_spnego_key(ses);
if (IS_ERR(spnego_key)) {
rc = PTR_ERR(spnego_key);
+ if (rc == -ENOKEY)
+ cifs_dbg(VFS, "Verify user has a krb5 ticket and keyutils is installed\n");
spnego_key = NULL;
goto out;
}
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index bad458a2b579..f8baa54c8300 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -1046,7 +1046,7 @@ struct smb2_oplock_break {
struct smb2_lease_break {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 44 */
- __le16 Reserved;
+ __le16 Epoch;
__le32 Flags;
__u8 LeaseKey[16];
__le32 CurrentLeaseState;
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-27 15:23:25 +0000