[RFC PATCH v2 03/21] fuse-bpf: Prepare for fuse-bpf patch

Daniel Rosenberg
2022-11-22T02:16:34Z

This moves some functions and structs around to make the following patch
easier to read.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Signed-off-by: Paul Lawrence <paullawrence@google.com>
---
fs/fuse/dir.c | 30 ------------------------------
fs/fuse/fuse_i.h | 35 +++++++++++++++++++++++++++++++++++
fs/fuse/inode.c | 44 ++++++++++++++++++++++----------------------
3 files changed, 57 insertions(+), 52 deletions(-)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index bb97a384dc5d..168903cadb54 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -46,10 +46,6 @@ static inline u64 fuse_dentry_time(const struct dentry *entry)
}

#else
-union fuse_dentry {
- u64 time;
- struct rcu_head rcu;
-};

static inline void __fuse_dentry_settime(struct dentry *dentry, u64 time)
{
@@ -83,27 +79,6 @@ static void fuse_dentry_settime(struct dentry *dentry, u64 time)
__fuse_dentry_settime(dentry, time);
}

-/*
- * FUSE caches dentries and attributes with separate timeout. The
- * time in jiffies until the dentry/attributes are valid is stored in
- * dentry->d_fsdata and fuse_inode->i_time respectively.
- */
-
-/*
- * Calculate the time in jiffies until a dentry/attributes are valid
- */
-static u64 time_to_jiffies(u64 sec, u32 nsec)
-{
- if (sec || nsec) {
- struct timespec64 ts = {
- sec,
- min_t(u32, nsec, NSEC_PER_SEC - 1)
- };
-
- return get_jiffies_64() + timespec64_to_jiffies(&ts);
- } else
- return 0;
-}

/*
* Set dentry and possibly attribute timeouts from the lookup/mk*
@@ -115,11 +90,6 @@ void fuse_change_entry_timeout(struct dentry *entry, struct fuse_entry_out *o)
time_to_jiffies(o->entry_valid, o->entry_valid_nsec));
}

-static u64 attr_timeout(struct fuse_attr_out *o)
-{
- return time_to_jiffies(o->attr_valid, o->attr_valid_nsec);
-}
-
u64 entry_attr_timeout(struct fuse_entry_out *o)
{
return time_to_jiffies(o->attr_valid, o->attr_valid_nsec);
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 98a9cf531873..57453296e662 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -63,6 +63,14 @@ struct fuse_forget_link {
struct fuse_forget_link *next;
};

+/** FUSE specific dentry data */
+#if BITS_PER_LONG < 64
+union fuse_dentry {
+ u64 time;
+ struct rcu_head rcu;
+};
+#endif
+
/** FUSE inode */
struct fuse_inode {
/** Inode data */
@@ -1319,4 +1327,31 @@ struct fuse_file *fuse_file_open(struct fuse_mount *fm, u64 nodeid,
void fuse_file_release(struct inode *inode, struct fuse_file *ff,
unsigned int open_flags, fl_owner_t id, bool isdir);

+/*
+ * FUSE caches dentries and attributes with separate timeout. The
+ * time in jiffies until the dentry/attributes are valid is stored in
+ * dentry->d_fsdata and fuse_inode->i_time respectively.
+ */
+
+/*
+ * Calculate the time in jiffies until a dentry/attributes are valid
+ */
+static inline u64 time_to_jiffies(u64 sec, u32 nsec)
+{
+ if (sec || nsec) {
+ struct timespec64 ts = {
+ sec,
+ min_t(u32, nsec, NSEC_PER_SEC - 1)
+ };
+
+ return get_jiffies_64() + timespec64_to_jiffies(&ts);
+ } else
+ return 0;
+}
+
+static inline u64 attr_timeout(struct fuse_attr_out *o)
+{
+ return time_to_jiffies(o->attr_valid, o->attr_valid_nsec);
+}
+
#endif /* _FS_FUSE_I_H */
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 6b3beda16c1b..504336d56a7f 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -162,6 +162,28 @@ static ino_t fuse_squash_ino(u64 ino64)
return ino;
}

+static void fuse_fill_attr_from_inode(struct fuse_attr *attr,
+ const struct fuse_inode *fi)
+{
+ *attr = (struct fuse_attr){
+ .ino = fi->inode.i_ino,
+ .size = fi->inode.i_size,
+ .blocks = fi->inode.i_blocks,
+ .atime = fi->inode.i_atime.tv_sec,
+ .mtime = fi->inode.i_mtime.tv_sec,
+ .ctime = fi->inode.i_ctime.tv_sec,
+ .atimensec = fi->inode.i_atime.tv_nsec,
+ .mtimensec = fi->inode.i_mtime.tv_nsec,
+ .ctimensec = fi->inode.i_ctime.tv_nsec,
+ .mode = fi->inode.i_mode,
+ .nlink = fi->inode.i_nlink,
+ .uid = fi->inode.i_uid.val,
+ .gid = fi->inode.i_gid.val,
+ .rdev = fi->inode.i_rdev,
+ .blksize = 1u << fi->inode.i_blkbits,
+ };
+}
+
void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr,
u64 attr_valid, u32 cache_mask)
{
@@ -1386,28 +1408,6 @@ void fuse_dev_free(struct fuse_dev *fud)
}
EXPORT_SYMBOL_GPL(fuse_dev_free);

-static void fuse_fill_attr_from_inode(struct fuse_attr *attr,
- const struct fuse_inode *fi)
-{
- *attr = (struct fuse_attr){
- .ino = fi->inode.i_ino,
- .size = fi->inode.i_size,
- .blocks = fi->inode.i_blocks,
- .atime = fi->inode.i_atime.tv_sec,
- .mtime = fi->inode.i_mtime.tv_sec,
- .ctime = fi->inode.i_ctime.tv_sec,
- .atimensec = fi->inode.i_atime.tv_nsec,
- .mtimensec = fi->inode.i_mtime.tv_nsec,
- .ctimensec = fi->inode.i_ctime.tv_nsec,
- .mode = fi->inode.i_mode,
- .nlink = fi->inode.i_nlink,
- .uid = fi->inode.i_uid.val,
- .gid = fi->inode.i_gid.val,
- .rdev = fi->inode.i_rdev,
- .blksize = 1u << fi->inode.i_blkbits,
- };
-}
-
static void fuse_sb_defaults(struct super_block *sb)
{
sb->s_magic = FUSE_SUPER_MAGIC;
--
2.38.1.584.g0f3c55d4c2-goog