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linux/include/trace/events/erofs.h
Jingbo Xu 3acea5fc33 erofs: avoid hardcoded blocksize for subpage block support 
As the first step of converting hardcoded blocksize to that specified in
on-disk superblock, convert all call sites of hardcoded blocksize to
sb->s_blocksize except for:

1) use sbi->blkszbits instead of sb->s_blocksize in
erofs_superblock_csum_verify() since sb->s_blocksize has not been
updated with the on-disk blocksize yet when the function is called.

2) use inode->i_blkbits instead of sb->s_blocksize in erofs_bread(),
since the inode operated on may be an anonymous inode in fscache mode.
Currently the anonymous inode is allocated from an anonymous mount
maintained in erofs, while in the near future we may allocate anonymous
inodes from a generic API directly and thus have no access to the
anonymous inode's i_sb.  Thus we keep the block size in i_blkbits for
anonymous inodes in fscache mode.

Be noted that this patch only gets rid of the hardcoded blocksize, in
preparation for actually setting the on-disk block size in the following
patch.  The hard limit of constraining the block size to PAGE_SIZE still
exists until the next patch.

Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Yue Hu <huyue2@coolpad.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20230313135309.75269-2-jefflexu@linux.alibaba.com
[ Gao Xiang: fold a patch to fix incorrect truncated offsets. ]
Link: https://lore.kernel.org/r/20230413035734.15457-1-zhujia.zj@bytedance.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2023-04-17 01:15:44 +08:00

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/* SPDX-License-Identifier: GPL-2.0-only */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM erofs
#if !defined(_TRACE_EROFS_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_EROFS_H
#include <linux/tracepoint.h>
#include <linux/fs.h>
struct erofs_map_blocks;
#define show_dev(dev) MAJOR(dev), MINOR(dev)
#define show_dev_nid(entry) show_dev(entry->dev), entry->nid
#define show_file_type(type) \
__print_symbolic(type, \
{ 0, "FILE" }, \
{ 1, "DIR" })
#define show_map_flags(flags) __print_flags(flags, "|", \
{ EROFS_GET_BLOCKS_FIEMAP, "FIEMAP" }, \
{ EROFS_GET_BLOCKS_READMORE, "READMORE" }, \
{ EROFS_GET_BLOCKS_FINDTAIL, "FINDTAIL" })
#define show_mflags(flags) __print_flags(flags, "", \
{ EROFS_MAP_MAPPED, "M" }, \
{ EROFS_MAP_META, "I" }, \
{ EROFS_MAP_ENCODED, "E" }, \
{ EROFS_MAP_FULL_MAPPED, "F" }, \
{ EROFS_MAP_FRAGMENT, "R" }, \
{ EROFS_MAP_PARTIAL_REF, "P" })
TRACE_EVENT(erofs_lookup,
TP_PROTO(struct inode *dir, struct dentry *dentry, unsigned int flags),
TP_ARGS(dir, dentry, flags),
TP_STRUCT__entry(
__field(dev_t, dev )
__field(erofs_nid_t, nid )
__string(name, dentry->d_name.name )
__field(unsigned int, flags )
),
TP_fast_assign(
__entry->dev = dir->i_sb->s_dev;
__entry->nid = EROFS_I(dir)->nid;
__assign_str(name, dentry->d_name.name);
__entry->flags = flags;
),
TP_printk("dev = (%d,%d), pnid = %llu, name:%s, flags:%x",
show_dev_nid(__entry),
__get_str(name),
__entry->flags)
);
TRACE_EVENT(erofs_fill_inode,
TP_PROTO(struct inode *inode),
TP_ARGS(inode),
TP_STRUCT__entry(
__field(dev_t, dev )
__field(erofs_nid_t, nid )
__field(erofs_blk_t, blkaddr )
__field(unsigned int, ofs )
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->nid = EROFS_I(inode)->nid;
__entry->blkaddr = erofs_blknr(inode->i_sb, erofs_iloc(inode));
__entry->ofs = erofs_blkoff(inode->i_sb, erofs_iloc(inode));
),
TP_printk("dev = (%d,%d), nid = %llu, blkaddr %u ofs %u",
show_dev_nid(__entry),
__entry->blkaddr, __entry->ofs)
);
TRACE_EVENT(erofs_readpage,
TP_PROTO(struct page *page, bool raw),
TP_ARGS(page, raw),
TP_STRUCT__entry(
__field(dev_t, dev )
__field(erofs_nid_t, nid )
__field(int, dir )
__field(pgoff_t, index )
__field(int, uptodate)
__field(bool, raw )
),
TP_fast_assign(
__entry->dev = page->mapping->host->i_sb->s_dev;
__entry->nid = EROFS_I(page->mapping->host)->nid;
__entry->dir = S_ISDIR(page->mapping->host->i_mode);
__entry->index = page->index;
__entry->uptodate = PageUptodate(page);
__entry->raw = raw;
),
TP_printk("dev = (%d,%d), nid = %llu, %s, index = %lu, uptodate = %d "
"raw = %d",
show_dev_nid(__entry),
show_file_type(__entry->dir),
(unsigned long)__entry->index,
__entry->uptodate,
__entry->raw)
);
TRACE_EVENT(erofs_readpages,
TP_PROTO(struct inode *inode, pgoff_t start, unsigned int nrpage,
bool raw),
TP_ARGS(inode, start, nrpage, raw),
TP_STRUCT__entry(
__field(dev_t, dev )
__field(erofs_nid_t, nid )
__field(pgoff_t, start )
__field(unsigned int, nrpage )
__field(bool, raw )
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->nid = EROFS_I(inode)->nid;
__entry->start = start;
__entry->nrpage = nrpage;
__entry->raw = raw;
),
TP_printk("dev = (%d,%d), nid = %llu, start = %lu nrpage = %u raw = %d",
show_dev_nid(__entry),
(unsigned long)__entry->start,
__entry->nrpage,
__entry->raw)
);
DECLARE_EVENT_CLASS(erofs__map_blocks_enter,
TP_PROTO(struct inode *inode, struct erofs_map_blocks *map,
unsigned int flags),
TP_ARGS(inode, map, flags),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( erofs_nid_t, nid )
__field( erofs_off_t, la )
__field( u64, llen )
__field( unsigned int, flags )
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->nid = EROFS_I(inode)->nid;
__entry->la = map->m_la;
__entry->llen = map->m_llen;
__entry->flags = flags;
),
TP_printk("dev = (%d,%d), nid = %llu, la %llu llen %llu flags %s",
show_dev_nid(__entry),
__entry->la, __entry->llen,
__entry->flags ? show_map_flags(__entry->flags) : "NULL")
);
DEFINE_EVENT(erofs__map_blocks_enter, erofs_map_blocks_enter,
TP_PROTO(struct inode *inode, struct erofs_map_blocks *map,
unsigned flags),
TP_ARGS(inode, map, flags)
);
DEFINE_EVENT(erofs__map_blocks_enter, z_erofs_map_blocks_iter_enter,
TP_PROTO(struct inode *inode, struct erofs_map_blocks *map,
unsigned int flags),
TP_ARGS(inode, map, flags)
);
DECLARE_EVENT_CLASS(erofs__map_blocks_exit,
TP_PROTO(struct inode *inode, struct erofs_map_blocks *map,
unsigned int flags, int ret),
TP_ARGS(inode, map, flags, ret),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( erofs_nid_t, nid )
__field( unsigned int, flags )
__field( erofs_off_t, la )
__field( erofs_off_t, pa )
__field( u64, llen )
__field( u64, plen )
__field( unsigned int, mflags )
__field( int, ret )
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->nid = EROFS_I(inode)->nid;
__entry->flags = flags;
__entry->la = map->m_la;
__entry->pa = map->m_pa;
__entry->llen = map->m_llen;
__entry->plen = map->m_plen;
__entry->mflags = map->m_flags;
__entry->ret = ret;
),
TP_printk("dev = (%d,%d), nid = %llu, flags %s "
"la %llu pa %llu llen %llu plen %llu mflags %s ret %d",
show_dev_nid(__entry),
__entry->flags ? show_map_flags(__entry->flags) : "NULL",
__entry->la, __entry->pa, __entry->llen, __entry->plen,
show_mflags(__entry->mflags), __entry->ret)
);
DEFINE_EVENT(erofs__map_blocks_exit, erofs_map_blocks_exit,
TP_PROTO(struct inode *inode, struct erofs_map_blocks *map,
unsigned flags, int ret),
TP_ARGS(inode, map, flags, ret)
);
DEFINE_EVENT(erofs__map_blocks_exit, z_erofs_map_blocks_iter_exit,
TP_PROTO(struct inode *inode, struct erofs_map_blocks *map,
unsigned int flags, int ret),
TP_ARGS(inode, map, flags, ret)
);
TRACE_EVENT(erofs_destroy_inode,
TP_PROTO(struct inode *inode),
TP_ARGS(inode),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( erofs_nid_t, nid )
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->nid = EROFS_I(inode)->nid;
),
TP_printk("dev = (%d,%d), nid = %llu", show_dev_nid(__entry))
);
#endif /* _TRACE_EROFS_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
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