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318580ad7f
Add basic tracepoints for {alloc, evict, free}_inode, setattr and
fallocate. These can help users to debug hugetlbfs more conveniently.
Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Link: https://lore.kernel.org/r/20240829064110.67884-2-lihongbo22@huawei.com
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
157 lines
3.7 KiB
C
157 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM hugetlbfs
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#if !defined(_TRACE_HUGETLBFS_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_HUGETLBFS_H
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#include <linux/tracepoint.h>
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TRACE_EVENT(hugetlbfs_alloc_inode,
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TP_PROTO(struct inode *inode, struct inode *dir, int mode),
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TP_ARGS(inode, dir, mode),
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TP_STRUCT__entry(
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__field(dev_t, dev)
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__field(ino_t, ino)
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__field(ino_t, dir)
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__field(__u16, mode)
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),
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TP_fast_assign(
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__entry->dev = inode->i_sb->s_dev;
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__entry->ino = inode->i_ino;
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__entry->dir = dir->i_ino;
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__entry->mode = mode;
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),
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TP_printk("dev %d,%d ino %lu dir %lu mode 0%o",
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MAJOR(__entry->dev), MINOR(__entry->dev),
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(unsigned long) __entry->ino,
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(unsigned long) __entry->dir, __entry->mode)
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);
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DECLARE_EVENT_CLASS(hugetlbfs__inode,
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TP_PROTO(struct inode *inode),
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TP_ARGS(inode),
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TP_STRUCT__entry(
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__field(dev_t, dev)
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__field(ino_t, ino)
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__field(__u16, mode)
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__field(loff_t, size)
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__field(unsigned int, nlink)
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__field(unsigned int, seals)
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__field(blkcnt_t, blocks)
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),
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TP_fast_assign(
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__entry->dev = inode->i_sb->s_dev;
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__entry->ino = inode->i_ino;
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__entry->mode = inode->i_mode;
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__entry->size = inode->i_size;
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__entry->nlink = inode->i_nlink;
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__entry->seals = HUGETLBFS_I(inode)->seals;
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__entry->blocks = inode->i_blocks;
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),
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TP_printk("dev %d,%d ino %lu mode 0%o size %lld nlink %u seals %u blocks %llu",
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MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino,
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__entry->mode, __entry->size, __entry->nlink, __entry->seals,
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(unsigned long long)__entry->blocks)
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);
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DEFINE_EVENT(hugetlbfs__inode, hugetlbfs_evict_inode,
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TP_PROTO(struct inode *inode),
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TP_ARGS(inode)
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);
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DEFINE_EVENT(hugetlbfs__inode, hugetlbfs_free_inode,
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TP_PROTO(struct inode *inode),
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TP_ARGS(inode)
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);
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TRACE_EVENT(hugetlbfs_setattr,
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TP_PROTO(struct inode *inode, struct dentry *dentry,
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struct iattr *attr),
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TP_ARGS(inode, dentry, attr),
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TP_STRUCT__entry(
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__field(dev_t, dev)
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__field(ino_t, ino)
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__field(unsigned int, d_len)
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__string(d_name, dentry->d_name.name)
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__field(unsigned int, ia_valid)
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__field(unsigned int, ia_mode)
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__field(loff_t, old_size)
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__field(loff_t, ia_size)
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),
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TP_fast_assign(
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__entry->dev = inode->i_sb->s_dev;
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__entry->ino = inode->i_ino;
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__entry->d_len = dentry->d_name.len;
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__assign_str(d_name);
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__entry->ia_valid = attr->ia_valid;
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__entry->ia_mode = attr->ia_mode;
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__entry->old_size = inode->i_size;
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__entry->ia_size = attr->ia_size;
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),
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TP_printk("dev %d,%d ino %lu name %.*s valid %#x mode 0%o old_size %lld size %lld",
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MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long)__entry->ino,
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__entry->d_len, __get_str(d_name), __entry->ia_valid, __entry->ia_mode,
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__entry->old_size, __entry->ia_size)
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);
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TRACE_EVENT(hugetlbfs_fallocate,
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TP_PROTO(struct inode *inode, int mode,
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loff_t offset, loff_t len, int ret),
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TP_ARGS(inode, mode, offset, len, ret),
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TP_STRUCT__entry(
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__field(dev_t, dev)
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__field(ino_t, ino)
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__field(int, mode)
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__field(loff_t, offset)
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__field(loff_t, len)
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__field(loff_t, size)
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__field(int, ret)
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),
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TP_fast_assign(
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__entry->dev = inode->i_sb->s_dev;
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__entry->ino = inode->i_ino;
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__entry->mode = mode;
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__entry->offset = offset;
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__entry->len = len;
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__entry->size = inode->i_size;
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__entry->ret = ret;
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),
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TP_printk("dev %d,%d ino %lu mode 0%o offset %lld len %lld size %lld ret %d",
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MAJOR(__entry->dev), MINOR(__entry->dev),
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(unsigned long)__entry->ino, __entry->mode,
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(unsigned long long)__entry->offset,
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(unsigned long long)__entry->len,
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(unsigned long long)__entry->size,
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__entry->ret)
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);
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#endif /* _TRACE_HUGETLBFS_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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