2023-11-17 21:22:38

by David Howells

[permalink] [raw]
Subject: [PATCH v2 42/51] cifs: Share server EOF pos with netfslib

Use cifsi->netfs_ctx.remote_i_size instead of cifsi->server_eof so that
netfslib can refer to it to.

Signed-off-by: David Howells <[email protected]>
cc: Steve French <[email protected]>
cc: Shyam Prasad N <[email protected]>
cc: Rohith Surabattula <[email protected]>
cc: Jeff Layton <[email protected]>
cc: [email protected]
cc: [email protected]
cc: [email protected]
cc: [email protected]
---
fs/smb/client/cifsfs.c | 2 +-
fs/smb/client/cifsglob.h | 1 -
fs/smb/client/file.c | 8 ++++----
fs/smb/client/inode.c | 6 +++---
fs/smb/client/smb2ops.c | 10 +++++-----
5 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c
index ea3a7a668b45..c7d8251c28d5 100644
--- a/fs/smb/client/cifsfs.c
+++ b/fs/smb/client/cifsfs.c
@@ -395,7 +395,7 @@ cifs_alloc_inode(struct super_block *sb)
spin_lock_init(&cifs_inode->writers_lock);
cifs_inode->writers = 0;
cifs_inode->netfs.inode.i_blkbits = 14; /* 2**14 = CIFS_MAX_MSGSIZE */
- cifs_inode->server_eof = 0;
+ cifs_inode->netfs.remote_i_size = 0;
cifs_inode->uniqueid = 0;
cifs_inode->createtime = 0;
cifs_inode->epoch = 0;
diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h
index 0f74aa12e6b6..94f2411861d0 100644
--- a/fs/smb/client/cifsglob.h
+++ b/fs/smb/client/cifsglob.h
@@ -1531,7 +1531,6 @@ struct cifsInodeInfo {
spinlock_t writers_lock;
unsigned int writers; /* Number of writers on this inode */
unsigned long time; /* jiffies of last update of inode */
- u64 server_eof; /* current file size on server -- protected by i_lock */
u64 uniqueid; /* server inode number */
u64 createtime; /* creation time on server */
__u8 lease_key[SMB2_LEASE_KEY_SIZE]; /* lease key for this inode */
diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
index 8c9e33efb9a9..385830b02e0a 100644
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -2118,8 +2118,8 @@ cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
{
loff_t end_of_write = offset + bytes_written;

- if (end_of_write > cifsi->server_eof)
- cifsi->server_eof = end_of_write;
+ if (end_of_write > cifsi->netfs.remote_i_size)
+ netfs_resize_file(&cifsi->netfs, end_of_write);
}

static ssize_t
@@ -3245,8 +3245,8 @@ cifs_uncached_writev_complete(struct work_struct *work)

spin_lock(&inode->i_lock);
cifs_update_eof(cifsi, wdata->offset, wdata->bytes);
- if (cifsi->server_eof > inode->i_size)
- i_size_write(inode, cifsi->server_eof);
+ if (cifsi->netfs.remote_i_size > inode->i_size)
+ i_size_write(inode, cifsi->netfs.remote_i_size);
spin_unlock(&inode->i_lock);

complete(&wdata->done);
diff --git a/fs/smb/client/inode.c b/fs/smb/client/inode.c
index 86fbd3f847d6..500c8104786d 100644
--- a/fs/smb/client/inode.c
+++ b/fs/smb/client/inode.c
@@ -104,7 +104,7 @@ cifs_revalidate_cache(struct inode *inode, struct cifs_fattr *fattr)
fattr->cf_mtime = timestamp_truncate(fattr->cf_mtime, inode);
mtime = inode_get_mtime(inode);
if (timespec64_equal(&mtime, &fattr->cf_mtime) &&
- cifs_i->server_eof == fattr->cf_eof) {
+ cifs_i->netfs.remote_i_size == fattr->cf_eof) {
cifs_dbg(FYI, "%s: inode %llu is unchanged\n",
__func__, cifs_i->uniqueid);
return;
@@ -193,7 +193,7 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
else
clear_bit(CIFS_INO_DELETE_PENDING, &cifs_i->flags);

- cifs_i->server_eof = fattr->cf_eof;
+ cifs_i->netfs.remote_i_size = fattr->cf_eof;
/*
* Can't safely change the file size here if the client is writing to
* it due to potential races.
@@ -2779,7 +2779,7 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs,

set_size_out:
if (rc == 0) {
- cifsInode->server_eof = attrs->ia_size;
+ netfs_resize_file(&cifsInode->netfs, attrs->ia_size);
cifs_setsize(inode, attrs->ia_size);
/*
* i_blocks is not related to (i_size / i_blksize), but instead
diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c
index ae0acf9c411d..bd978544d857 100644
--- a/fs/smb/client/smb2ops.c
+++ b/fs/smb/client/smb2ops.c
@@ -3562,7 +3562,7 @@ static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon,
rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
cfile->fid.volatile_fid, cfile->pid, &eof);
if (rc == 0) {
- cifsi->server_eof = off + len;
+ netfs_resize_file(&cifsi->netfs, off + len);
cifs_setsize(inode, off + len);
cifs_truncate_page(inode->i_mapping, inode->i_size);
truncate_setsize(inode, off + len);
@@ -3654,8 +3654,8 @@ static long smb3_collapse_range(struct file *file, struct cifs_tcon *tcon,
int rc;
unsigned int xid;
struct inode *inode = file_inode(file);
- struct cifsFileInfo *cfile = file->private_data;
struct cifsInodeInfo *cifsi = CIFS_I(inode);
+ struct cifsFileInfo *cfile = file->private_data;
__le64 eof;
loff_t old_eof;

@@ -3690,9 +3690,9 @@ static long smb3_collapse_range(struct file *file, struct cifs_tcon *tcon,

rc = 0;

- cifsi->server_eof = i_size_read(inode) - len;
- truncate_setsize(inode, cifsi->server_eof);
- fscache_resize_cookie(cifs_inode_cookie(inode), cifsi->server_eof);
+ netfs_resize_file(&cifsi->netfs, eof);
+ truncate_setsize(inode, eof);
+ fscache_resize_cookie(cifs_inode_cookie(inode), eof);
out_2:
filemap_invalidate_unlock(inode->i_mapping);
out: