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f2fs: support to trace f2fs_fiemap() 

to show f2fs_fiemap()'s result as below:

f2fs_fiemap: dev = (251,0), ino = 7, lblock:0, pblock:1625292800, len:2097152, flags:0, ret:0

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2020-06-29 20:13:13 +08:00 committed by Jaegeuk Kim
parent b79b0a310b
commit dd5a09bd05
3 changed files with 44 additions and 1 deletions
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6
fs/f2fs/data.c
View File

@ -1813,6 +1813,7 @@ static int f2fs_xattr_fiemap(struct inode *inode,
flags |= FIEMAP_EXTENT_LAST;
err = fiemap_fill_next_extent(fieinfo, 0, phys, len, flags);
trace_f2fs_fiemap(inode, 0, phys, len, flags, err);
if (err || err == 1)
return err;
}
@ -1836,8 +1837,10 @@ static int f2fs_xattr_fiemap(struct inode *inode,
flags = FIEMAP_EXTENT_LAST;
}
if (phys)
if (phys) {
err = fiemap_fill_next_extent(fieinfo, 0, phys, len, flags);
trace_f2fs_fiemap(inode, 0, phys, len, flags, err);
}
return (err < 0 ? err : 0);
}
@ -1931,6 +1934,7 @@ next:
ret = fiemap_fill_next_extent(fieinfo, logical,
phys, size, flags);
trace_f2fs_fiemap(inode, logical, phys, size, flags, ret);
if (ret)
goto out;
size = 0;

2
fs/f2fs/inline.c
View File

@ -12,6 +12,7 @@
#include "f2fs.h"
#include "node.h"
#include <trace/events/f2fs.h>
bool f2fs_may_inline_data(struct inode *inode)
{
@ -776,6 +777,7 @@ int f2fs_inline_data_fiemap(struct inode *inode,
byteaddr += (char *)inline_data_addr(inode, ipage) -
(char *)F2FS_INODE(ipage);
err = fiemap_fill_next_extent(fieinfo, start, byteaddr, ilen, flags);
trace_f2fs_fiemap(inode, start, byteaddr, ilen, flags, err);
out:
f2fs_put_page(ipage, 1);
return err;

37
include/trace/events/f2fs.h
View File

@ -1917,6 +1917,43 @@ TRACE_EVENT(f2fs_bmap,
(unsigned long long)__entry->pblock)
);
TRACE_EVENT(f2fs_fiemap,
TP_PROTO(struct inode *inode, sector_t lblock, sector_t pblock,
unsigned long long len, unsigned int flags, int ret),
TP_ARGS(inode, lblock, pblock, len, flags, ret),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(ino_t, ino)
__field(sector_t, lblock)
__field(sector_t, pblock)
__field(unsigned long long, len)
__field(unsigned int, flags)
__field(int, ret)
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
__entry->lblock = lblock;
__entry->pblock = pblock;
__entry->len = len;
__entry->flags = flags;
__entry->ret = ret;
),
TP_printk("dev = (%d,%d), ino = %lu, lblock:%lld, pblock:%lld, "
"len:%llu, flags:%u, ret:%d",
show_dev_ino(__entry),
(unsigned long long)__entry->lblock,
(unsigned long long)__entry->pblock,
__entry->len,
__entry->flags,
__entry->ret)
);
#endif /* _TRACE_F2FS_H */
/* This part must be outside protection */