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authorEric Van Hensbergen <ericvh@kernel.org>2022-12-08 02:03:32 +0000
committerEric Van Hensbergen <ericvh@kernel.org>2023-02-23 22:39:36 +0000
commit344504e912ea49033d012dad9de3f68e20c07634 (patch)
treeba2a6c0b0d224fe032138de6f922544edc955154
parent2a03472262c05f965d7ba394ed35dc9867ba3095 (diff)
fs/9p: Expand setup of writeback cache to all levels
If cache is enabled, make sure we are putting the right things in place (mainly impacts mmap). This also sets us up for more cache levels. Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org> Reviewed-by: Dominique Martinet <asmadeus@codewreck.org>
-rw-r--r--fs/9p/v9fs.c2
-rw-r--r--fs/9p/vfs_addr.c2
-rw-r--r--fs/9p/vfs_file.c7
-rw-r--r--fs/9p/vfs_inode.c3
-rw-r--r--fs/9p/vfs_inode_dotl.c7
5 files changed, 10 insertions, 11 deletions
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 3a9c4517265f..61a51b90600d 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -468,7 +468,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
#ifdef CONFIG_9P_FSCACHE
/* register the session for caching */
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+ if (v9ses->cache == CACHE_FSCACHE) {
rc = v9fs_cache_session_get_cookie(v9ses, dev_name);
if (rc < 0)
goto err_clnt;
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index 97599edbc300..6f46d7e4c750 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -279,8 +279,6 @@ static int v9fs_write_begin(struct file *filp, struct address_space *mapping,
p9_debug(P9_DEBUG_VFS, "filp %p, mapping %p\n", filp, mapping);
- BUG_ON(!v9inode->writeback_fid);
-
/* Prefetch area to be written into the cache if we're caching this
* file. We need to do this before we get a lock on the page in case
* there's more than one writer competing for the same cache block.
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index b740017634ef..3b6458846a0b 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -73,8 +73,7 @@ int v9fs_file_open(struct inode *inode, struct file *file)
}
mutex_lock(&v9inode->v_mutex);
- if ((v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) &&
- !v9inode->writeback_fid &&
+ if ((v9ses->cache) && !v9inode->writeback_fid &&
((file->f_flags & O_ACCMODE) != O_RDONLY)) {
/*
* clone a fid and add it to writeback_fid
@@ -92,9 +91,11 @@ int v9fs_file_open(struct inode *inode, struct file *file)
v9inode->writeback_fid = (void *) writeback_fid;
}
mutex_unlock(&v9inode->v_mutex);
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
+#ifdef CONFIG_9P_FSCACHE
+ if (v9ses->cache == CACHE_FSCACHE)
fscache_use_cookie(v9fs_inode_cookie(v9inode),
file->f_mode & FMODE_WRITE);
+#endif
v9fs_open_fid_add(inode, &fid);
return 0;
out_error:
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 27a04a226d97..33e521c60e2c 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -843,8 +843,7 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
inode = d_inode(dentry);
v9inode = V9FS_I(inode);
mutex_lock(&v9inode->v_mutex);
- if ((v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) &&
- !v9inode->writeback_fid &&
+ if ((v9ses->cache) && !v9inode->writeback_fid &&
((flags & O_ACCMODE) != O_RDONLY)) {
/*
* clone a fid and add it to writeback_fid
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index f806b3f11649..bff37a312e64 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -316,8 +316,7 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
v9inode = V9FS_I(inode);
mutex_lock(&v9inode->v_mutex);
- if ((v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) &&
- !v9inode->writeback_fid &&
+ if ((v9ses->cache) && !v9inode->writeback_fid &&
((flags & O_ACCMODE) != O_RDONLY)) {
/*
* clone a fid and add it to writeback_fid
@@ -340,9 +339,11 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
if (err)
goto out;
file->private_data = ofid;
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
+#ifdef CONFIG_9P_FSCACHE
+ if (v9ses->cache == CACHE_FSCACHE)
fscache_use_cookie(v9fs_inode_cookie(v9inode),
file->f_mode & FMODE_WRITE);
+#endif
v9fs_open_fid_add(inode, &ofid);
file->f_mode |= FMODE_CREATED;
out: