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>

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index c07a50e4d967ab84f80a8f3cda79e8728ccfee4e..995cf78b23c5e52900c066e0171268330766ecc2 100644 (file)
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -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;

diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index dbade310dc792e4eec714a95764f5a3a987b007f..def4b8481883aac2219cfb02d102c604a4ab56da 100644 (file)
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -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;

diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 2e8713a52d7635ff4047f318eedd8384d8e3ff6d..8a1c1311acac4795a2e73b3e14c9e22e3d79a477 100644 (file)
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -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 */