summaryrefslogtreecommitdiff
path: root/fs/cifs
diff options
context:
space:
mode:
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/cifs_swn.c6
-rw-r--r--fs/cifs/cifsacl.c9
-rw-r--r--fs/cifs/cifsfs.c1
-rw-r--r--fs/cifs/connect.c57
-rw-r--r--fs/cifs/dfs_cache.c2
-rw-r--r--fs/cifs/file.c221
-rw-r--r--fs/cifs/fs_context.c4
-rw-r--r--fs/cifs/fscache.c126
-rw-r--r--fs/cifs/fscache.h79
-rw-r--r--fs/cifs/inode.c8
-rw-r--r--fs/cifs/sess.c17
-rw-r--r--fs/cifs/smb1ops.c4
-rw-r--r--fs/cifs/transport.c5
-rw-r--r--fs/cifs/xattr.c2
14 files changed, 314 insertions, 227 deletions
diff --git a/fs/cifs/cifs_swn.c b/fs/cifs/cifs_swn.c
index 463ebe34892b..cdce1609c5c2 100644
--- a/fs/cifs/cifs_swn.c
+++ b/fs/cifs/cifs_swn.c
@@ -396,11 +396,11 @@ static int cifs_swn_resource_state_changed(struct cifs_swn_reg *swnreg, const ch
switch (state) {
case CIFS_SWN_RESOURCE_STATE_UNAVAILABLE:
cifs_dbg(FYI, "%s: resource name '%s' become unavailable\n", __func__, name);
- cifs_reconnect(swnreg->tcon->ses->server, true);
+ cifs_mark_tcp_ses_conns_for_reconnect(swnreg->tcon->ses->server, true);
break;
case CIFS_SWN_RESOURCE_STATE_AVAILABLE:
cifs_dbg(FYI, "%s: resource name '%s' become available\n", __func__, name);
- cifs_reconnect(swnreg->tcon->ses->server, true);
+ cifs_mark_tcp_ses_conns_for_reconnect(swnreg->tcon->ses->server, true);
break;
case CIFS_SWN_RESOURCE_STATE_UNKNOWN:
cifs_dbg(FYI, "%s: resource name '%s' changed to unknown state\n", __func__, name);
@@ -498,7 +498,7 @@ static int cifs_swn_reconnect(struct cifs_tcon *tcon, struct sockaddr_storage *a
goto unlock;
}
- cifs_reconnect(tcon->ses->server, false);
+ cifs_mark_tcp_ses_conns_for_reconnect(tcon->ses->server, false);
unlock:
mutex_unlock(&tcon->ses->server->srv_mutex);
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index ee3aab3dd4ac..bf861fef2f0c 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -949,6 +949,9 @@ static void populate_new_aces(char *nacl_base,
pnntace = (struct cifs_ace *) (nacl_base + nsize);
nsize += setup_special_mode_ACE(pnntace, nmode);
num_aces++;
+ pnntace = (struct cifs_ace *) (nacl_base + nsize);
+ nsize += setup_authusers_ACE(pnntace);
+ num_aces++;
goto set_size;
}
@@ -1297,7 +1300,7 @@ static int build_sec_desc(struct cifs_ntsd *pntsd, struct cifs_ntsd *pnntsd,
if (uid_valid(uid)) { /* chown */
uid_t id;
- nowner_sid_ptr = kmalloc(sizeof(struct cifs_sid),
+ nowner_sid_ptr = kzalloc(sizeof(struct cifs_sid),
GFP_KERNEL);
if (!nowner_sid_ptr) {
rc = -ENOMEM;
@@ -1326,7 +1329,7 @@ static int build_sec_desc(struct cifs_ntsd *pntsd, struct cifs_ntsd *pnntsd,
}
if (gid_valid(gid)) { /* chgrp */
gid_t id;
- ngroup_sid_ptr = kmalloc(sizeof(struct cifs_sid),
+ ngroup_sid_ptr = kzalloc(sizeof(struct cifs_sid),
GFP_KERNEL);
if (!ngroup_sid_ptr) {
rc = -ENOMEM;
@@ -1613,7 +1616,7 @@ id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64 *pnmode,
nsecdesclen = secdesclen;
if (pnmode && *pnmode != NO_CHANGE_64) { /* chmod */
if (mode_from_sid)
- nsecdesclen += sizeof(struct cifs_ace);
+ nsecdesclen += 2 * sizeof(struct cifs_ace);
else /* cifsacl */
nsecdesclen += 5 * sizeof(struct cifs_ace);
} else { /* chown */
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 199edac0cb59..082c21478686 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -919,6 +919,7 @@ cifs_smb3_do_mount(struct file_system_type *fs_type,
out_super:
deactivate_locked_super(sb);
+ return root;
out:
if (cifs_sb) {
kfree(cifs_sb->prepath);
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 11a22a30ee14..d3020abfe404 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -162,7 +162,7 @@ static void cifs_resolve_server(struct work_struct *work)
mutex_unlock(&server->srv_mutex);
}
-/**
+/*
* Mark all sessions and tcons for reconnect.
*
* @server needs to be previously set to CifsNeedReconnect.
@@ -175,11 +175,6 @@ cifs_mark_tcp_ses_conns_for_reconnect(struct TCP_Server_Info *server,
struct TCP_Server_Info *pserver;
struct cifs_ses *ses;
struct cifs_tcon *tcon;
- struct mid_q_entry *mid, *nmid;
- struct list_head retry_list;
-
- server->maxBuf = 0;
- server->max_read = 0;
/*
* before reconnecting the tcp session, mark the smb session (uid) and the tid bad so they
@@ -219,6 +214,16 @@ next_session:
spin_unlock(&ses->chan_lock);
}
spin_unlock(&cifs_tcp_ses_lock);
+}
+
+static void
+cifs_abort_connection(struct TCP_Server_Info *server)
+{
+ struct mid_q_entry *mid, *nmid;
+ struct list_head retry_list;
+
+ server->maxBuf = 0;
+ server->max_read = 0;
/* do not want to be sending data on a socket we are freeing */
cifs_dbg(FYI, "%s: tearing down socket\n", __func__);
@@ -310,6 +315,8 @@ static int __cifs_reconnect(struct TCP_Server_Info *server,
cifs_mark_tcp_ses_conns_for_reconnect(server, mark_smb_session);
+ cifs_abort_connection(server);
+
do {
try_to_freeze();
mutex_lock(&server->srv_mutex);
@@ -434,6 +441,8 @@ reconnect_dfs_server(struct TCP_Server_Info *server,
cifs_mark_tcp_ses_conns_for_reconnect(server, mark_smb_session);
+ cifs_abort_connection(server);
+
do {
try_to_freeze();
mutex_lock(&server->srv_mutex);
@@ -639,6 +648,7 @@ cifs_readv_from_socket(struct TCP_Server_Info *server, struct msghdr *smb_msg)
if (server->tcpStatus == CifsNeedReconnect) {
spin_unlock(&cifs_tcp_ses_lock);
+ cifs_reconnect(server, false);
return -ECONNABORTED;
}
spin_unlock(&cifs_tcp_ses_lock);
@@ -1831,13 +1841,9 @@ void cifs_put_smb_ses(struct cifs_ses *ses)
int i;
for (i = 1; i < chan_count; i++) {
- /*
- * note: for now, we're okay accessing ses->chans
- * without chan_lock. But when chans can go away, we'll
- * need to introduce ref counting to make sure that chan
- * is not freed from under us.
- */
+ spin_unlock(&ses->chan_lock);
cifs_put_tcp_session(ses->chans[i].server, 0);
+ spin_lock(&ses->chan_lock);
ses->chans[i].server = NULL;
}
}
@@ -1981,6 +1987,19 @@ cifs_set_cifscreds(struct smb3_fs_context *ctx, struct cifs_ses *ses)
}
}
+ ctx->workstation_name = kstrdup(ses->workstation_name, GFP_KERNEL);
+ if (!ctx->workstation_name) {
+ cifs_dbg(FYI, "Unable to allocate memory for workstation_name\n");
+ rc = -ENOMEM;
+ kfree(ctx->username);
+ ctx->username = NULL;
+ kfree_sensitive(ctx->password);
+ ctx->password = NULL;
+ kfree(ctx->domainname);
+ ctx->domainname = NULL;
+ goto out_key_put;
+ }
+
out_key_put:
up_read(&key->sem);
key_put(key);
@@ -2331,10 +2350,19 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx)
if (ses->server->posix_ext_supported) {
tcon->posix_extensions = true;
pr_warn_once("SMB3.11 POSIX Extensions are experimental\n");
- } else {
+ } else if ((ses->server->vals->protocol_id == SMB311_PROT_ID) ||
+ (strcmp(ses->server->vals->version_string,
+ SMB3ANY_VERSION_STRING) == 0) ||
+ (strcmp(ses->server->vals->version_string,
+ SMBDEFAULT_VERSION_STRING) == 0)) {
cifs_dbg(VFS, "Server does not support mounting with posix SMB3.11 extensions\n");
rc = -EOPNOTSUPP;
goto out_fail;
+ } else {
+ cifs_dbg(VFS, "Check vers= mount option. SMB3.11 "
+ "disabled but required for POSIX extensions\n");
+ rc = -EOPNOTSUPP;
+ goto out_fail;
}
}
@@ -3896,7 +3924,8 @@ cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
/* only send once per connect */
spin_lock(&cifs_tcp_ses_lock);
- if (server->tcpStatus != CifsNeedSessSetup) {
+ if ((server->tcpStatus != CifsNeedSessSetup) &&
+ (ses->status == CifsGood)) {
spin_unlock(&cifs_tcp_ses_lock);
return 0;
}
diff --git a/fs/cifs/dfs_cache.c b/fs/cifs/dfs_cache.c
index dd9643751671..831f42458bf6 100644
--- a/fs/cifs/dfs_cache.c
+++ b/fs/cifs/dfs_cache.c
@@ -1355,7 +1355,7 @@ static void mark_for_reconnect_if_needed(struct cifs_tcon *tcon, struct dfs_cach
}
cifs_dbg(FYI, "%s: no cached or matched targets. mark dfs share for reconnect.\n", __func__);
- cifs_reconnect(tcon->ses->server, true);
+ cifs_mark_tcp_ses_conns_for_reconnect(tcon->ses->server, true);
}
/* Refresh dfs referral of tcon and mark it for reconnect if needed */
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 59334be9ed3b..e7af802dcfa6 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -4269,8 +4269,6 @@ cifs_readv_complete(struct work_struct *work)
for (i = 0; i < rdata->nr_pages; i++) {
struct page *page = rdata->pages[i];
- lru_cache_add(page);
-
if (rdata->result == 0 ||
(rdata->result == -EAGAIN && got_bytes)) {
flush_dcache_page(page);
@@ -4278,12 +4276,12 @@ cifs_readv_complete(struct work_struct *work)
} else
SetPageError(page);
- unlock_page(page);
-
if (rdata->result == 0 ||
(rdata->result == -EAGAIN && got_bytes))
cifs_readpage_to_fscache(rdata->mapping->host, page);
+ unlock_page(page);
+
got_bytes -= min_t(unsigned int, PAGE_SIZE, got_bytes);
put_page(page);
@@ -4340,7 +4338,6 @@ readpages_fill_pages(struct TCP_Server_Info *server,
* fill them until the writes are flushed.
*/
zero_user(page, 0, PAGE_SIZE);
- lru_cache_add(page);
flush_dcache_page(page);
SetPageUptodate(page);
unlock_page(page);
@@ -4350,7 +4347,6 @@ readpages_fill_pages(struct TCP_Server_Info *server,
continue;
} else {
/* no need to hold page hostage */
- lru_cache_add(page);
unlock_page(page);
put_page(page);
rdata->pages[i] = NULL;
@@ -4393,92 +4389,20 @@ cifs_readpages_copy_into_pages(struct TCP_Server_Info *server,
return readpages_fill_pages(server, rdata, iter, iter->count);
}
-static int
-readpages_get_pages(struct address_space *mapping, struct list_head *page_list,
- unsigned int rsize, struct list_head *tmplist,
- unsigned int *nr_pages, loff_t *offset, unsigned int *bytes)
-{
- struct page *page, *tpage;
- unsigned int expected_index;
- int rc;
- gfp_t gfp = readahead_gfp_mask(mapping);
-
- INIT_LIST_HEAD(tmplist);
-
- page = lru_to_page(page_list);
-
- /*
- * Lock the page and put it in the cache. Since no one else
- * should have access to this page, we're safe to simply set
- * PG_locked without checking it first.
- */
- __SetPageLocked(page);
- rc = add_to_page_cache_locked(page, mapping,
- page->index, gfp);
-
- /* give up if we can't stick it in the cache */
- if (rc) {
- __ClearPageLocked(page);
- return rc;
- }
-
- /* move first page to the tmplist */
- *offset = (loff_t)page->index << PAGE_SHIFT;
- *bytes = PAGE_SIZE;
- *nr_pages = 1;
- list_move_tail(&page->lru, tmplist);
-
- /* now try and add more pages onto the request */
- expected_index = page->index + 1;
- list_for_each_entry_safe_reverse(page, tpage, page_list, lru) {
- /* discontinuity ? */
- if (page->index != expected_index)
- break;
-
- /* would this page push the read over the rsize? */
- if (*bytes + PAGE_SIZE > rsize)
- break;
-
- __SetPageLocked(page);
- rc = add_to_page_cache_locked(page, mapping, page->index, gfp);
- if (rc) {
- __ClearPageLocked(page);
- break;
- }
- list_move_tail(&page->lru, tmplist);
- (*bytes) += PAGE_SIZE;
- expected_index++;
- (*nr_pages)++;
- }
- return rc;
-}
-
-static int cifs_readpages(struct file *file, struct address_space *mapping,
- struct list_head *page_list, unsigned num_pages)
+static void cifs_readahead(struct readahead_control *ractl)
{
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);
+ struct cifsFileInfo *open_file = ractl->file->private_data;
+ struct cifs_sb_info *cifs_sb = CIFS_FILE_SB(ractl->file);
struct TCP_Server_Info *server;
pid_t pid;
- unsigned int xid;
+ unsigned int xid, nr_pages, last_batch_size = 0, cache_nr_pages = 0;
+ pgoff_t next_cached = ULONG_MAX;
+ bool caching = fscache_cookie_enabled(cifs_inode_cookie(ractl->mapping->host)) &&
+ cifs_inode_cookie(ractl->mapping->host)->cache_priv;
+ bool check_cache = caching;
xid = get_xid();
- /*
- * Reads as many pages as possible from fscache. Returns -ENOBUFS
- * immediately if the cookie is negative
- *
- * After this point, every page in the list might have PG_fscache set,
- * so we will need to clean that up off of every page we don't use.
- */
- rc = cifs_readpages_from_fscache(mapping->host, mapping, page_list,
- &num_pages);
- if (rc == 0) {
- free_xid(xid);
- return rc;
- }
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD)
pid = open_file->pid;
@@ -4489,39 +4413,73 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
server = cifs_pick_channel(tlink_tcon(open_file->tlink)->ses);
cifs_dbg(FYI, "%s: file=%p mapping=%p num_pages=%u\n",
- __func__, file, mapping, num_pages);
+ __func__, ractl->file, ractl->mapping, readahead_count(ractl));
/*
- * Start with the page at end of list and move it to private
- * list. Do the same with any following pages until we hit
- * the rsize limit, hit an index discontinuity, or run out of
- * pages. Issue the async read and then start the loop again
- * until the list is empty.
- *
- * Note that list order is important. The page_list is in
- * the order of declining indexes. When we put the pages in
- * the rdata->pages, then we want them in increasing order.
+ * Chop the readahead request up into rsize-sized read requests.
*/
- while (!list_empty(page_list) && !err) {
- unsigned int i, nr_pages, bytes, rsize;
- loff_t offset;
- struct page *page, *tpage;
+ while ((nr_pages = readahead_count(ractl) - last_batch_size)) {
+ unsigned int i, got, rsize;
+ struct page *page;
struct cifs_readdata *rdata;
struct cifs_credits credits_on_stack;
struct cifs_credits *credits = &credits_on_stack;
+ pgoff_t index = readahead_index(ractl) + last_batch_size;
+
+ /*
+ * Find out if we have anything cached in the range of
+ * interest, and if so, where the next chunk of cached data is.
+ */
+ if (caching) {
+ if (check_cache) {
+ rc = cifs_fscache_query_occupancy(
+ ractl->mapping->host, index, nr_pages,
+ &next_cached, &cache_nr_pages);
+ if (rc < 0)
+ caching = false;
+ check_cache = false;
+ }
+
+ if (index == next_cached) {
+ /*
+ * TODO: Send a whole batch of pages to be read
+ * by the cache.
+ */
+ page = readahead_page(ractl);
+ last_batch_size = 1 << thp_order(page);
+ if (cifs_readpage_from_fscache(ractl->mapping->host,
+ page) < 0) {
+ /*
+ * TODO: Deal with cache read failure
+ * here, but for the moment, delegate
+ * that to readpage.
+ */
+ caching = false;
+ }
+ unlock_page(page);
+ next_cached++;
+ cache_nr_pages--;
+ if (cache_nr_pages == 0)
+ check_cache = true;
+ continue;
+ }
+ }
if (open_file->invalidHandle) {
rc = cifs_reopen_file(open_file, true);
- if (rc == -EAGAIN)
- continue;
- else if (rc)
+ if (rc) {
+ if (rc == -EAGAIN)
+ continue;
break;
+ }
}
rc = server->ops->wait_mtu_credits(server, cifs_sb->ctx->rsize,
&rsize, credits);
if (rc)
break;
+ nr_pages = min_t(size_t, rsize / PAGE_SIZE, readahead_count(ractl));
+ nr_pages = min_t(size_t, nr_pages, next_cached - index);
/*
* Give up immediately if rsize is too small to read an entire
@@ -4529,16 +4487,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
* reach this point however since we set ra_pages to 0 when the
* rsize is smaller than a cache page.
*/
- if (unlikely(rsize < PAGE_SIZE)) {
- add_credits_and_wake_if(server, credits, 0);
- free_xid(xid);
- return 0;
- }
-
- nr_pages = 0;
- err = readpages_get_pages(mapping, page_list, rsize, &tmplist,
- &nr_pages, &offset, &bytes);
- if (!nr_pages) {
+ if (unlikely(!nr_pages)) {
add_credits_and_wake_if(server, credits, 0);
break;
}
@@ -4546,36 +4495,31 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
rdata = cifs_readdata_alloc(nr_pages, cifs_readv_complete);
if (!rdata) {
/* best to give up if we're out of mem */
- list_for_each_entry_safe(page, tpage, &tmplist, lru) {
- list_del(&page->lru);
- lru_cache_add(page);
- unlock_page(page);
- put_page(page);
- }
- rc = -ENOMEM;
add_credits_and_wake_if(server, credits, 0);
break;
}
- rdata->cfile = cifsFileInfo_get(open_file);
- rdata->server = server;
- rdata->mapping = mapping;
- rdata->offset = offset;
- rdata->bytes = bytes;
- rdata->pid = pid;
- rdata->pagesz = PAGE_SIZE;
- rdata->tailsz = PAGE_SIZE;
+ got = __readahead_batch(ractl, rdata->pages, nr_pages);
+ if (got != nr_pages) {
+ pr_warn("__readahead_batch() returned %u/%u\n",
+ got, nr_pages);
+ nr_pages = got;
+ }
+
+ rdata->nr_pages = nr_pages;
+ rdata->bytes = readahead_batch_length(ractl);
+ rdata->cfile = cifsFileInfo_get(open_file);
+ rdata->server = server;
+ rdata->mapping = ractl->mapping;
+ rdata->offset = readahead_pos(ractl);
+ rdata->pid = pid;
+ rdata->pagesz = PAGE_SIZE;
+ rdata->tailsz = PAGE_SIZE;
rdata->read_into_pages = cifs_readpages_read_into_pages;
rdata->copy_into_pages = cifs_readpages_copy_into_pages;
- rdata->credits = credits_on_stack;
-
- list_for_each_entry_safe(page, tpage, &tmplist, lru) {
- list_del(&page->lru);
- rdata->pages[rdata->nr_pages++] = page;
- }
+ rdata->credits = credits_on_stack;
rc = adjust_credits(server, &rdata->credits, rdata->bytes);
-
if (!rc) {
if (rdata->cfile->invalidHandle)
rc = -EAGAIN;
@@ -4587,7 +4531,6 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
add_credits_and_wake_if(server, &rdata->credits, 0);
for (i = 0; i < rdata->nr_pages; i++) {
page = rdata->pages[i];
- lru_cache_add(page);
unlock_page(page);
put_page(page);
}
@@ -4597,10 +4540,10 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
}
kref_put(&rdata->refcount, cifs_readdata_release);
+ last_batch_size = nr_pages;
}
free_xid(xid);
- return rc;
}
/*
@@ -4924,7 +4867,7 @@ oplock_break_done:
* In the non-cached mode (mount with cache=none), we shunt off direct read and write requests
* so this method should never be called.
*
- * Direct IO is not yet supported in the cached mode.
+ * Direct IO is not yet supported in the cached mode.
*/
static ssize_t
cifs_direct_io(struct kiocb *iocb, struct iov_iter *iter)
@@ -5006,7 +4949,7 @@ static int cifs_set_page_dirty(struct page *page)
const struct address_space_operations cifs_addr_ops = {
.readpage = cifs_readpage,
- .readpages = cifs_readpages,
+ .readahead = cifs_readahead,
.writepage = cifs_writepage,
.writepages = cifs_writepages,
.write_begin = cifs_write_begin,
diff --git a/fs/cifs/fs_context.c b/fs/cifs/fs_context.c
index 7ec35f3f0a5f..a92e9eec521f 100644
--- a/fs/cifs/fs_context.c
+++ b/fs/cifs/fs_context.c
@@ -149,7 +149,7 @@ const struct fs_parameter_spec smb3_fs_parameters[] = {
fsparam_u32("echo_interval", Opt_echo_interval),
fsparam_u32("max_credits", Opt_max_credits),
fsparam_u32("handletimeout", Opt_handletimeout),
- fsparam_u32("snapshot", Opt_snapshot),
+ fsparam_u64("snapshot", Opt_snapshot),
fsparam_u32("max_channels", Opt_max_channels),
/* Mount options which take string value */
@@ -1078,7 +1078,7 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
ctx->echo_interval = result.uint_32;
break;
case Opt_snapshot:
- ctx->snapshot_time = result.uint_32;
+ ctx->snapshot_time = result.uint_64;
break;
case Opt_max_credits:
if (result.uint_32 < 20 || result.uint_32 > 60000) {
diff --git a/fs/cifs/fscache.c b/fs/cifs/fscache.c
index efaac4d5ff55..33af72e0ac0c 100644
--- a/fs/cifs/fscache.c
+++ b/fs/cifs/fscache.c
@@ -134,37 +134,127 @@ void cifs_fscache_release_inode_cookie(struct inode *inode)
}
}
+static inline void fscache_end_operation(struct netfs_cache_resources *cres)
+{
+ const struct netfs_cache_ops *ops = fscache_operation_valid(cres);
+
+ if (ops)
+ ops->end_operation(cres);
+}
+
/*
- * Retrieve a page from FS-Cache
+ * Fallback page reading interface.
*/
-int __cifs_readpage_from_fscache(struct inode *inode, struct page *page)
+static int fscache_fallback_read_page(struct inode *inode, struct page *page)
{
- cifs_dbg(FYI, "%s: (fsc:%p, p:%p, i:0x%p\n",
- __func__, CIFS_I(inode)->fscache, page, inode);
- return -ENOBUFS; // Needs conversion to using netfslib
+ struct netfs_cache_resources cres;
+ struct fscache_cookie *cookie = cifs_inode_cookie(inode);
+ struct iov_iter iter;
+ struct bio_vec bvec[1];
+ int ret;
+
+ memset(&cres, 0, sizeof(cres));
+ bvec[0].bv_page = page;
+ bvec[0].bv_offset = 0;
+ bvec[0].bv_len = PAGE_SIZE;
+ iov_iter_bvec(&iter, READ, bvec, ARRAY_SIZE(bvec), PAGE_SIZE);
+
+ ret = fscache_begin_read_operation(&cres, cookie);
+ if (ret < 0)
+ return ret;
+
+ ret = fscache_read(&cres, page_offset(page), &iter, NETFS_READ_HOLE_FAIL,
+ NULL, NULL);
+ fscache_end_operation(&cres);
+ return ret;
}
/*
- * Retrieve a set of pages from FS-Cache
+ * Fallback page writing interface.
*/
-int __cifs_readpages_from_fscache(struct inode *inode,
- struct address_space *mapping,
- struct list_head *pages,
- unsigned *nr_pages)
+static int fscache_fallback_write_page(struct inode *inode, struct page *page,
+ bool no_space_allocated_yet)
{
- cifs_dbg(FYI, "%s: (0x%p/%u/0x%p)\n",
- __func__, CIFS_I(inode)->fscache, *nr_pages, inode);
- return -ENOBUFS; // Needs conversion to using netfslib
+ struct netfs_cache_resources cres;
+ struct fscache_cookie *cookie = cifs_inode_cookie(inode);
+ struct iov_iter iter;
+ struct bio_vec bvec[1];
+ loff_t start = page_offset(page);
+ size_t len = PAGE_SIZE;
+ int ret;
+
+ memset(&cres, 0, sizeof(cres));
+ bvec[0].bv_page = page;
+ bvec[0].bv_offset = 0;
+ bvec[0].bv_len = PAGE_SIZE;
+ iov_iter_bvec(&iter, WRITE, bvec, ARRAY_SIZE(bvec), PAGE_SIZE);
+
+ ret = fscache_begin_write_operation(&cres, cookie);
+ if (ret < 0)
+ return ret;
+
+ ret = cres.ops->prepare_write(&cres, &start, &len, i_size_read(inode),
+ no_space_allocated_yet);
+ if (ret == 0)
+ ret = fscache_write(&cres, page_offset(page), &iter, NULL, NULL);
+ fscache_end_operation(&cres);
+ return ret;
}
-void __cifs_readpage_to_fscache(struct inode *inode, struct page *page)
+/*
+ * Retrieve a page from FS-Cache
+ */
+int __cifs_readpage_from_fscache(struct inode *inode, struct page *page)
{
- struct cifsInodeInfo *cifsi = CIFS_I(inode);
+ int ret;
- WARN_ON(!cifsi->fscache);
+ cifs_dbg(FYI, "%s: (fsc:%p, p:%p, i:0x%p\n",
+ __func__, cifs_inode_cookie(inode), page, inode);
+ ret = fscache_fallback_read_page(inode, page);
+ if (ret < 0)
+ return ret;
+
+ /* Read completed synchronously */
+ SetPageUptodate(page);
+ return 0;
+}
+
+void __cifs_readpage_to_fscache(struct inode *inode, struct page *page)
+{
cifs_dbg(FYI, "%s: (fsc: %p, p: %p, i: %p)\n",
- __func__, cifsi->fscache, page, inode);
+ __func__, cifs_inode_cookie(inode), page, inode);
+
+ fscache_fallback_write_page(inode, page, true);
+}
+
+/*
+ * Query the cache occupancy.
+ */
+int __cifs_fscache_query_occupancy(struct inode *inode,
+ pgoff_t first, unsigned int nr_pages,
+ pgoff_t *_data_first,
+ unsigned int *_data_nr_pages)
+{
+ struct netfs_cache_resources cres;
+ struct fscache_cookie *cookie = cifs_inode_cookie(inode);
+ loff_t start, data_start;
+ size_t len, data_len;
+ int ret;
- // Needs conversion to using netfslib
+ ret = fscache_begin_read_operation(&cres, cookie);
+ if (ret < 0)
+ return ret;
+
+ start = first * PAGE_SIZE;
+ len = nr_pages * PAGE_SIZE;
+ ret = cres.ops->query_occupancy(&cres, start, len, PAGE_SIZE,
+ &data_start, &data_len);
+ if (ret == 0) {
+ *_data_first = data_start / PAGE_SIZE;
+ *_data_nr_pages = len / PAGE_SIZE;
+ }
+
+ fscache_end_operation(&cres);
+ return ret;
}
diff --git a/fs/cifs/fscache.h b/fs/cifs/fscache.h
index c6ca49ac33d4..55129908e2c1 100644
--- a/fs/cifs/fscache.h
+++ b/fs/cifs/fscache.h
@@ -9,6 +9,7 @@
#ifndef _CIFS_FSCACHE_H
#define _CIFS_FSCACHE_H
+#include <linux/swap.h>
#include <linux/fscache.h>
#include "cifsglob.h"
@@ -58,14 +59,6 @@ void cifs_fscache_fill_coherency(struct inode *inode,
}
-extern int cifs_fscache_release_page(struct page *page, gfp_t gfp);
-extern int __cifs_readpage_from_fscache(struct inode *, struct page *);
-extern int __cifs_readpages_from_fscache(struct inode *,
- struct address_space *,
- struct list_head *,
- unsigned *);
-extern void __cifs_readpage_to_fscache(struct inode *, struct page *);
-
static inline struct fscache_cookie *cifs_inode_cookie(struct inode *inode)
{
return CIFS_I(inode)->fscache;
@@ -80,33 +73,52 @@ static inline void cifs_invalidate_cache(struct inode *inode, unsigned int flags
i_size_read(inode), flags);
}
-static inline int cifs_readpage_from_fscache(struct inode *inode,
- struct page *page)
-{
- if (CIFS_I(inode)->fscache)
- return __cifs_readpage_from_fscache(inode, page);
+extern int __cifs_fscache_query_occupancy(struct inode *inode,
+ pgoff_t first, unsigned int nr_pages,
+ pgoff_t *_data_first,
+ unsigned int *_data_nr_pages);
- return -ENOBUFS;
+static inline int cifs_fscache_query_occupancy(struct inode *inode,
+ pgoff_t first, unsigned int nr_pages,
+ pgoff_t *_data_first,
+ unsigned int *_data_nr_pages)
+{
+ if (!cifs_inode_cookie(inode))
+ return -ENOBUFS;
+ return __cifs_fscache_query_occupancy(inode, first, nr_pages,
+ _data_first, _data_nr_pages);
}
-static inline int cifs_readpages_from_fscache(struct inode *inode,
- struct address_space *mapping,
- struct list_head *pages,
- unsigned *nr_pages)
+extern int __cifs_readpage_from_fscache(struct inode *pinode, struct page *ppage);
+extern void __cifs_readpage_to_fscache(struct inode *pinode, struct page *ppage);
+
+
+static inline int cifs_readpage_from_fscache(struct inode *inode,
+ struct page *page)
{
- if (CIFS_I(inode)->fscache)
- return __cifs_readpages_from_fscache(inode, mapping, pages,
- nr_pages);
+ if (cifs_inode_cookie(inode))
+ return __cifs_readpage_from_fscache(inode, page);
return -ENOBUFS;
}
static inline void cifs_readpage_to_fscache(struct inode *inode,
struct page *page)
{
- if (PageFsCache(page))
+ if (cifs_inode_cookie(inode))
__cifs_readpage_to_fscache(inode, page);
}
+static inline int cifs_fscache_release_page(struct page *page, gfp_t gfp)
+{
+ if (PageFsCache(page)) {
+ if (current_is_kswapd() || !(gfp & __GFP_FS))
+ return false;
+ wait_on_page_fscache(page);
+ fscache_note_page_release(cifs_inode_cookie(page->mapping->host));
+ }
+ return true;
+}
+
#else /* CONFIG_CIFS_FSCACHE */
static inline
void cifs_fscache_fill_coherency(struct inode *inode,
@@ -123,22 +135,29 @@ static inline void cifs_fscache_unuse_inode_cookie(struct inode *inode, bool upd
static inline struct fscache_cookie *cifs_inode_cookie(struct inode *inode) { return NULL; }
static inline void cifs_invalidate_cache(struct inode *inode, unsigned int flags) {}
-static inline int
-cifs_readpage_from_fscache(struct inode *inode, struct page *page)
+static inline int cifs_fscache_query_occupancy(struct inode *inode,
+ pgoff_t first, unsigned int nr_pages,
+ pgoff_t *_data_first,
+ unsigned int *_data_nr_pages)
{
+ *_data_first = ULONG_MAX;
+ *_data_nr_pages = 0;
return -ENOBUFS;
}
-static inline int cifs_readpages_from_fscache(struct inode *inode,
- struct address_space *mapping,
- struct list_head *pages,
- unsigned *nr_pages)
+static inline int
+cifs_readpage_from_fscache(struct inode *inode, struct page *page)
{
return -ENOBUFS;
}
-static inline void cifs_readpage_to_fscache(struct inode *inode,
- struct page *page) {}
+static inline
+void cifs_readpage_to_fscache(struct inode *inode, struct page *page) {}
+
+static inline int nfs_fscache_release_page(struct page *page, gfp_t gfp)
+{
+ return true; /* May release page */
+}
#endif /* CONFIG_CIFS_FSCACHE */
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 7d8b3ceb2af3..60d853c92f6a 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -83,6 +83,7 @@ static void cifs_set_ops(struct inode *inode)
static void
cifs_revalidate_cache(struct inode *inode, struct cifs_fattr *fattr)
{
+ struct cifs_fscache_inode_coherency_data cd;
struct cifsInodeInfo *cifs_i = CIFS_I(inode);
cifs_dbg(FYI, "%s: revalidating inode %llu\n",
@@ -113,6 +114,9 @@ cifs_revalidate_cache(struct inode *inode, struct cifs_fattr *fattr)
cifs_dbg(FYI, "%s: invalidating inode %llu mapping\n",
__func__, cifs_i->uniqueid);
set_bit(CIFS_INO_INVALID_MAPPING, &cifs_i->flags);
+ /* Invalidate fscache cookie */
+ cifs_fscache_fill_coherency(&cifs_i->vfs_inode, &cd);
+ fscache_invalidate(cifs_inode_cookie(inode), &cd, i_size_read(inode), 0);
}
/*
@@ -2261,8 +2265,6 @@ cifs_dentry_needs_reval(struct dentry *dentry)
int
cifs_invalidate_mapping(struct inode *inode)
{
- struct cifs_fscache_inode_coherency_data cd;
- struct cifsInodeInfo *cifsi = CIFS_I(inode);
int rc = 0;
if (inode->i_mapping && inode->i_mapping->nrpages != 0) {
@@ -2272,8 +2274,6 @@ cifs_invalidate_mapping(struct inode *inode)
__func__, inode);
}
- cifs_fscache_fill_coherency(&cifsi->vfs_inode, &cd);
- fscache_invalidate(cifs_inode_cookie(inode), &cd, i_size_read(inode), 0);
return rc;
}
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index dc3b16d1be09..32f478c7a66d 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -127,11 +127,6 @@ int cifs_try_adding_channels(struct cifs_sb_info *cifs_sb, struct cifs_ses *ses)
struct cifs_server_iface *ifaces = NULL;
size_t iface_count;
- if (ses->server->dialect < SMB30_PROT_ID) {
- cifs_dbg(VFS, "multichannel is not supported on this protocol version, use 3.0 or above\n");
- return 0;
- }
-
spin_lock(&ses->chan_lock);
new_chan_count = old_chan_count = ses->chan_count;
@@ -145,6 +140,12 @@ int cifs_try_adding_channels(struct cifs_sb_info *cifs_sb, struct cifs_ses *ses)
return 0;
}
+ if (ses->server->dialect < SMB30_PROT_ID) {
+ spin_unlock(&ses->chan_lock);
+ cifs_dbg(VFS, "multichannel is not supported on this protocol version, use 3.0 or above\n");
+ return 0;
+ }
+
if (!(ses->server->capabilities & SMB2_GLOBAL_CAP_MULTI_CHANNEL)) {
ses->chan_max = 1;
spin_unlock(&ses->chan_lock);
@@ -713,7 +714,11 @@ static int size_of_ntlmssp_blob(struct cifs_ses *ses, int base_size)
else
sz += sizeof(__le16);
- sz += sizeof(__le16) * strnlen(ses->workstation_name, CIFS_MAX_WORKSTATION_LEN);
+ if (ses->workstation_name)
+ sz += sizeof(__le16) * strnlen(ses->workstation_name,
+ CIFS_MAX_WORKSTATION_LEN);
+ else
+ sz += sizeof(__le16);
return sz;
}
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 8272c91e15ef..b2fb7bd11936 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -228,9 +228,7 @@ cifs_get_next_mid(struct TCP_Server_Info *server)
spin_unlock(&GlobalMid_Lock);
if (reconnect) {
- spin_lock(&cifs_tcp_ses_lock);
- server->tcpStatus = CifsNeedReconnect;
- spin_unlock(&cifs_tcp_ses_lock);
+ cifs_mark_tcp_ses_conns_for_reconnect(server, false);
}
return mid;
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 8540f7c13eae..a4c3e027cca2 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -430,10 +430,7 @@ unmask:
* be taken as the remainder of this one. We need to kill the
* socket so the server throws away the partial SMB
*/
- spin_lock(&cifs_tcp_ses_lock);
- if (server->tcpStatus != CifsExiting)
- server->tcpStatus = CifsNeedReconnect;
- spin_unlock(&cifs_tcp_ses_lock);
+ cifs_mark_tcp_ses_conns_for_reconnect(server, false);
trace_smb3_partial_send_reconnect(server->CurrentMid,
server->conn_id, server->hostname);
}
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index 7d8b72d67c80..9d486fbbfbbd 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -175,11 +175,13 @@ static int cifs_xattr_set(const struct xattr_handler *handler,
switch (handler->flags) {
case XATTR_CIFS_NTSD_FULL:
aclflags = (CIFS_ACL_OWNER |
+ CIFS_ACL_GROUP |
CIFS_ACL_DACL |
CIFS_ACL_SACL);
break;
case XATTR_CIFS_NTSD:
aclflags = (CIFS_ACL_OWNER |
+ CIFS_ACL_GROUP |
CIFS_ACL_DACL);
break;
case XATTR_CIFS_ACL:
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-15 02:12:42 +0300