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ntfs3: add iomap tracepoints

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Add ntfs3 tracepoints for iomap operations.

This adds trace events for ntfs_iomap_begin() and
ntfs_iomap_end() to help observe iomap mapping activity.

Signed-off-by: Baolin Liu <liubaolin@kylinos.cn>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
This commit is contained in:
Baolin Liu 2026-08-20 17:05:03 +08:00 committed by Konstantin Komarov
parent 3bd6d6540d
commit 7f7141354b
No known key found for this signature in database
GPG Key ID: A9B0331F832407B6
2 changed files with 54 additions and 0 deletions
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4
fs/ntfs3/inode.c
View File

@ -954,6 +954,8 @@ static int ntfs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
bool new_clst = false;
bool no_da;
bool zero = false;
trace_ntfs3_iomap_begin(inode, offset, length, flags);
if (unlikely(ntfs3_forced_shutdown(sbi->sb)))
return -EIO;
@ -1091,6 +1093,8 @@ static int ntfs_iomap_end(struct inode *inode, loff_t pos, loff_t length,
struct ntfs_inode *ni = ntfs_i(inode);
loff_t endbyte = pos + written;
trace_ntfs3_iomap_end(inode, pos, length, written, flags);
if ((flags & IOMAP_WRITE) || (flags & IOMAP_ZERO)) {
if (iomap->type == IOMAP_INLINE) {
u32 data_size;

50
include/trace/events/ntfs3.h
View File

@ -301,6 +301,56 @@ TRACE_EVENT(ntfs3_attr_data_get_block,
__entry->zero, __entry->no_da)
);
TRACE_EVENT(ntfs3_iomap_begin,
TP_PROTO(struct inode *inode, loff_t offset, loff_t length,
unsigned int flags),
TP_ARGS(inode, offset, length, flags),
TP_STRUCT__entry(
__field(unsigned long, ino)
__field(loff_t, offset)
__field(loff_t, length)
__field(dev_t, dev)
__field(unsigned int, flags)
),
TP_fast_assign(
__entry->ino = inode->i_ino;
__entry->offset = offset;
__entry->length = length;
__entry->dev = inode->i_sb->s_dev;
__entry->flags = flags;
),
TP_printk("dev=(%d,%d) ino=%lu offset=%lld length=%lld flags=0x%x",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->ino, __entry->offset, __entry->length,
__entry->flags)
);
TRACE_EVENT(ntfs3_iomap_end,
TP_PROTO(struct inode *inode, loff_t pos, loff_t length,
ssize_t written, unsigned int flags),
TP_ARGS(inode, pos, length, written, flags),
TP_STRUCT__entry(
__field(unsigned long, ino)
__field(loff_t, pos)
__field(loff_t, length)
__field(ssize_t, written)
__field(dev_t, dev)
__field(unsigned int, flags)
),
TP_fast_assign(
__entry->ino = inode->i_ino;
__entry->pos = pos;
__entry->length = length;
__entry->written = written;
__entry->dev = inode->i_sb->s_dev;
__entry->flags = flags;
),
TP_printk("dev=(%d,%d) ino=%lu pos=%lld length=%lld written=%zd flags=0x%x",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->ino, __entry->pos, __entry->length,
__entry->written, __entry->flags)
);
#endif /* _TRACE_NTFS3_H */
#include <trace/define_trace.h>