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f2fs: introduce tracepoint for f2fs_rename()

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This patch adds tracepoints for f2fs_rename().

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2023-11-28 17:31:29 +08:00 committed by Jaegeuk Kim
parent 53edb54956
commit 5f23ffdf17
2 changed files with 80 additions and 5 deletions
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14
fs/f2fs/namei.c
View File

@ -1315,21 +1315,27 @@ static int f2fs_rename2(struct mnt_idmap *idmap,
if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT))
return -EINVAL;
trace_f2fs_rename_start(old_dir, old_dentry, new_dir, new_dentry,
flags);
err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry,
flags);
if (err)
return err;
if (flags & RENAME_EXCHANGE) {
return f2fs_cross_rename(old_dir, old_dentry,
if (flags & RENAME_EXCHANGE)
err = f2fs_cross_rename(old_dir, old_dentry,
new_dir, new_dentry);
}
else
/*
* VFS has already handled the new dentry existence case,
* here, we just deal with "RENAME_NOREPLACE" as regular rename.
*/
return f2fs_rename(idmap, old_dir, old_dentry,
err = f2fs_rename(idmap, old_dir, old_dentry,
new_dir, new_dentry, flags);
trace_f2fs_rename_end(old_dentry, new_dentry, flags, err);
return err;
}
static const char *f2fs_encrypted_get_link(struct dentry *dentry,

69
include/trace/events/f2fs.h
View File

@ -866,6 +866,75 @@ TRACE_EVENT(f2fs_lookup_end,
__entry->err)
);
TRACE_EVENT(f2fs_rename_start,
TP_PROTO(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags),
TP_ARGS(old_dir, old_dentry, new_dir, new_dentry, flags),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(ino_t, ino)
__string(old_name, old_dentry->d_name.name)
__field(ino_t, new_pino)
__string(new_name, new_dentry->d_name.name)
__field(unsigned int, flags)
),
TP_fast_assign(
__entry->dev = old_dir->i_sb->s_dev;
__entry->ino = old_dir->i_ino;
__assign_str(old_name, old_dentry->d_name.name);
__entry->new_pino = new_dir->i_ino;
__assign_str(new_name, new_dentry->d_name.name);
__entry->flags = flags;
),
TP_printk("dev = (%d,%d), old_dir = %lu, old_name: %s, "
"new_dir = %lu, new_name: %s, flags = %u",
show_dev_ino(__entry),
__get_str(old_name),
__entry->new_pino,
__get_str(new_name),
__entry->flags)
);
TRACE_EVENT(f2fs_rename_end,
TP_PROTO(struct dentry *old_dentry, struct dentry *new_dentry,
unsigned int flags, int ret),
TP_ARGS(old_dentry, new_dentry, flags, ret),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(ino_t, ino)
__string(old_name, old_dentry->d_name.name)
__string(new_name, new_dentry->d_name.name)
__field(unsigned int, flags)
__field(int, ret)
),
TP_fast_assign(
__entry->dev = old_dentry->d_sb->s_dev;
__entry->ino = old_dentry->d_inode->i_ino;
__assign_str(old_name, old_dentry->d_name.name);
__assign_str(new_name, new_dentry->d_name.name);
__entry->flags = flags;
__entry->ret = ret;
),
TP_printk("dev = (%d,%d), ino = %lu, old_name: %s, "
"new_name: %s, flags = %u, ret = %d",
show_dev_ino(__entry),
__get_str(old_name),
__get_str(new_name),
__entry->flags,
__entry->ret)
);
TRACE_EVENT(f2fs_readdir,
TP_PROTO(struct inode *dir, loff_t start_pos, loff_t end_pos, int err),