xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

f2fs: add a tracepoint for f2fs_read_data_pages

Browse Source 
This patch adds a tracepoint for f2fs_read_data_pages to trace when pages
are readahead by VFS.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2015-10-12 17:02:26 +08:00
committed by Jaegeuk Kim
parent a56c7c6fb3
commit b8c2940048
2 changed files with 29 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
include/trace/events/f2fs.h
View File

@@ -1028,6 +1028,32 @@ TRACE_EVENT(f2fs_writepages,
__entry->for_sync)
);
TRACE_EVENT(f2fs_readpages,
TP_PROTO(struct inode *inode, struct page *page, unsigned int nrpage),
TP_ARGS(inode, page, nrpage),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(ino_t, ino)
__field(pgoff_t, start)
__field(unsigned int, nrpage)
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->ino = inode->i_ino;
__entry->start = page->index;
__entry->nrpage = nrpage;
),
TP_printk("dev = (%d,%d), ino = %lu, start = %lu nrpage = %u",
show_dev_ino(__entry),
(unsigned long)__entry->start,
__entry->nrpage)
);
TRACE_EVENT(f2fs_write_checkpoint,
TP_PROTO(struct super_block *sb, int reason, char *msg),