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path: root/fs/smb/client/cifsfs.c
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Diffstat (limited to 'fs/smb/client/cifsfs.c')
-rw-r--r--fs/smb/client/cifsfs.c142
1 files changed, 78 insertions, 64 deletions
diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c
index 81d9aafd2210..6e1698614745 100644
--- a/fs/smb/client/cifsfs.c
+++ b/fs/smb/client/cifsfs.c
@@ -151,15 +151,12 @@ MODULE_PARM_DESC(disable_legacy_dialects, "To improve security it may be "
"vers=1.0 (CIFS/SMB1) and vers=2.0 are weaker"
" and less secure. Default: n/N/0");
-extern mempool_t *cifs_sm_req_poolp;
-extern mempool_t *cifs_req_poolp;
-extern mempool_t *cifs_mid_poolp;
-
struct workqueue_struct *cifsiod_wq;
struct workqueue_struct *decrypt_wq;
struct workqueue_struct *fileinfo_put_wq;
struct workqueue_struct *cifsoplockd_wq;
struct workqueue_struct *deferredclose_wq;
+struct workqueue_struct *serverclose_wq;
__u32 cifs_lock_secret;
/*
@@ -374,9 +371,13 @@ static struct kmem_cache *cifs_inode_cachep;
static struct kmem_cache *cifs_req_cachep;
static struct kmem_cache *cifs_mid_cachep;
static struct kmem_cache *cifs_sm_req_cachep;
+static struct kmem_cache *cifs_io_request_cachep;
+static struct kmem_cache *cifs_io_subrequest_cachep;
mempool_t *cifs_sm_req_poolp;
mempool_t *cifs_req_poolp;
mempool_t *cifs_mid_poolp;
+mempool_t cifs_io_request_pool;
+mempool_t cifs_io_subrequest_pool;
static struct inode *
cifs_alloc_inode(struct super_block *sb)
@@ -392,6 +393,7 @@ cifs_alloc_inode(struct super_block *sb)
* server, can not assume caching of file data or metadata.
*/
cifs_set_oplock_level(cifs_inode, 0);
+ cifs_inode->lease_granted = false;
cifs_inode->flags = 0;
spin_lock_init(&cifs_inode->writers_lock);
cifs_inode->writers = 0;
@@ -742,6 +744,8 @@ static void cifs_umount_begin(struct super_block *sb)
spin_lock(&cifs_tcp_ses_lock);
spin_lock(&tcon->tc_lock);
+ trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
+ netfs_trace_tcon_ref_see_umount);
if ((tcon->tc_count > 1) || (tcon->status == TID_EXITING)) {
/* we have other mounts to same share or we have
already tried to umount this and woken up
@@ -986,61 +990,6 @@ out:
return root;
}
-
-static ssize_t
-cifs_loose_read_iter(struct kiocb *iocb, struct iov_iter *iter)
-{
- ssize_t rc;
- struct inode *inode = file_inode(iocb->ki_filp);
-
- if (iocb->ki_flags & IOCB_DIRECT)
- return cifs_user_readv(iocb, iter);
-
- rc = cifs_revalidate_mapping(inode);
- if (rc)
- return rc;
-
- return generic_file_read_iter(iocb, iter);
-}
-
-static ssize_t cifs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
-{
- struct inode *inode = file_inode(iocb->ki_filp);
- struct cifsInodeInfo *cinode = CIFS_I(inode);
- ssize_t written;
- int rc;
-
- if (iocb->ki_filp->f_flags & O_DIRECT) {
- written = cifs_user_writev(iocb, from);
- if (written > 0 && CIFS_CACHE_READ(cinode)) {
- cifs_zap_mapping(inode);
- cifs_dbg(FYI,
- "Set no oplock for inode=%p after a write operation\n",
- inode);
- cinode->oplock = 0;
- }
- return written;
- }
-
- written = cifs_get_writer(cinode);
- if (written)
- return written;
-
- written = generic_file_write_iter(iocb, from);
-
- if (CIFS_CACHE_WRITE(CIFS_I(inode)))
- goto out;
-
- rc = filemap_fdatawrite(inode->i_mapping);
- if (rc)
- cifs_dbg(FYI, "cifs_file_write_iter: %d rc on %p inode\n",
- rc, inode);
-
-out:
- cifs_put_writer(cinode);
- return written;
-}
-
static loff_t cifs_llseek(struct file *file, loff_t offset, int whence)
{
struct cifsFileInfo *cfile = file->private_data;
@@ -1342,6 +1291,8 @@ static loff_t cifs_remap_file_range(struct file *src_file, loff_t off,
rc = cifs_flush_folio(target_inode, destend, &fstart, &fend, false);
if (rc)
goto unlock;
+ if (fend > target_cifsi->netfs.zero_point)
+ target_cifsi->netfs.zero_point = fend + 1;
/* Discard all the folios that overlap the destination region. */
cifs_dbg(FYI, "about to discard pages %llx-%llx\n", fstart, fend);
@@ -1360,6 +1311,8 @@ static loff_t cifs_remap_file_range(struct file *src_file, loff_t off,
fscache_resize_cookie(cifs_inode_cookie(target_inode),
new_size);
}
+ if (rc == 0 && new_size > target_cifsi->netfs.zero_point)
+ target_cifsi->netfs.zero_point = new_size;
}
/* force revalidate of size and timestamps of target file now
@@ -1451,6 +1404,8 @@ ssize_t cifs_file_copychunk_range(unsigned int xid,
rc = cifs_flush_folio(target_inode, destend, &fstart, &fend, false);
if (rc)
goto unlock;
+ if (fend > target_cifsi->netfs.zero_point)
+ target_cifsi->netfs.zero_point = fend + 1;
/* Discard all the folios that overlap the destination region. */
truncate_inode_pages_range(&target_inode->i_data, fstart, fend);
@@ -1567,8 +1522,8 @@ const struct file_operations cifs_file_strict_ops = {
};
const struct file_operations cifs_file_direct_ops = {
- .read_iter = cifs_direct_readv,
- .write_iter = cifs_direct_writev,
+ .read_iter = netfs_unbuffered_read_iter,
+ .write_iter = netfs_file_write_iter,
.open = cifs_open,
.release = cifs_close,
.lock = cifs_lock,
@@ -1623,8 +1578,8 @@ const struct file_operations cifs_file_strict_nobrl_ops = {
};
const struct file_operations cifs_file_direct_nobrl_ops = {
- .read_iter = cifs_direct_readv,
- .write_iter = cifs_direct_writev,
+ .read_iter = netfs_unbuffered_read_iter,
+ .write_iter = netfs_file_write_iter,
.open = cifs_open,
.release = cifs_close,
.fsync = cifs_fsync,
@@ -1799,6 +1754,48 @@ static void destroy_mids(void)
kmem_cache_destroy(cifs_mid_cachep);
}
+static int cifs_init_netfs(void)
+{
+ cifs_io_request_cachep =
+ kmem_cache_create("cifs_io_request",
+ sizeof(struct cifs_io_request), 0,
+ SLAB_HWCACHE_ALIGN, NULL);
+ if (!cifs_io_request_cachep)
+ goto nomem_req;
+
+ if (mempool_init_slab_pool(&cifs_io_request_pool, 100, cifs_io_request_cachep) < 0)
+ goto nomem_reqpool;
+
+ cifs_io_subrequest_cachep =
+ kmem_cache_create("cifs_io_subrequest",
+ sizeof(struct cifs_io_subrequest), 0,
+ SLAB_HWCACHE_ALIGN, NULL);
+ if (!cifs_io_subrequest_cachep)
+ goto nomem_subreq;
+
+ if (mempool_init_slab_pool(&cifs_io_subrequest_pool, 100, cifs_io_subrequest_cachep) < 0)
+ goto nomem_subreqpool;
+
+ return 0;
+
+nomem_subreqpool:
+ kmem_cache_destroy(cifs_io_subrequest_cachep);
+nomem_subreq:
+ mempool_destroy(&cifs_io_request_pool);
+nomem_reqpool:
+ kmem_cache_destroy(cifs_io_request_cachep);
+nomem_req:
+ return -ENOMEM;
+}
+
+static void cifs_destroy_netfs(void)
+{
+ mempool_destroy(&cifs_io_subrequest_pool);
+ kmem_cache_destroy(cifs_io_subrequest_cachep);
+ mempool_destroy(&cifs_io_request_pool);
+ kmem_cache_destroy(cifs_io_request_cachep);
+}
+
static int __init
init_cifs(void)
{
@@ -1892,14 +1889,25 @@ init_cifs(void)
goto out_destroy_cifsoplockd_wq;
}
+ serverclose_wq = alloc_workqueue("serverclose",
+ WQ_FREEZABLE|WQ_MEM_RECLAIM, 0);
+ if (!serverclose_wq) {
+ rc = -ENOMEM;
+ goto out_destroy_serverclose_wq;
+ }
+
rc = cifs_init_inodecache();
if (rc)
goto out_destroy_deferredclose_wq;
- rc = init_mids();
+ rc = cifs_init_netfs();
if (rc)
goto out_destroy_inodecache;
+ rc = init_mids();
+ if (rc)
+ goto out_destroy_netfs;
+
rc = cifs_init_request_bufs();
if (rc)
goto out_destroy_mids;
@@ -1954,6 +1962,8 @@ out_destroy_request_bufs:
cifs_destroy_request_bufs();
out_destroy_mids:
destroy_mids();
+out_destroy_netfs:
+ cifs_destroy_netfs();
out_destroy_inodecache:
cifs_destroy_inodecache();
out_destroy_deferredclose_wq:
@@ -1966,6 +1976,8 @@ out_destroy_decrypt_wq:
destroy_workqueue(decrypt_wq);
out_destroy_cifsiod_wq:
destroy_workqueue(cifsiod_wq);
+out_destroy_serverclose_wq:
+ destroy_workqueue(serverclose_wq);
out_clean_proc:
cifs_proc_clean();
return rc;
@@ -1990,11 +2002,13 @@ exit_cifs(void)
#endif
cifs_destroy_request_bufs();
destroy_mids();
+ cifs_destroy_netfs();
cifs_destroy_inodecache();
destroy_workqueue(deferredclose_wq);
destroy_workqueue(cifsoplockd_wq);
destroy_workqueue(decrypt_wq);
destroy_workqueue(fileinfo_put_wq);
+ destroy_workqueue(serverclose_wq);
destroy_workqueue(cifsiod_wq);
cifs_proc_clean();
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-17 05:57:11 +0300