diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-10-17 13:12:13 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-10-21 08:51:59 -0700 |
| commit | 9e91c5728cab3d0aa3197d009c3d63e147914e77 (patch) | |
| tree | eb960f8585e9332eeef0ebb9f94becbb08d07eb2 /fs/iomap/buffered-io.c | |
| parent | 009d8d849d3ff59b1a23d2df2c55f2130b2ec7f2 (diff) | |
iomap: lift common tracing code from xfs to iomap
Lift the xfs code for tracing address space operations to the iomap
layer.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/iomap/buffered-io.c')
| -rw-r--r-- | fs/iomap/buffered-io.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 181ee8477aad..55e514899b8c 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -16,6 +16,7 @@ #include <linux/bio.h> #include <linux/sched/signal.h> #include <linux/migrate.h> +#include "trace.h" #include "../internal.h" @@ -301,6 +302,8 @@ iomap_readpage(struct page *page, const struct iomap_ops *ops) unsigned poff; loff_t ret; + trace_iomap_readpage(page->mapping->host, 1); + for (poff = 0; poff < PAGE_SIZE; poff += ret) { ret = iomap_apply(inode, page_offset(page) + poff, PAGE_SIZE - poff, 0, ops, &ctx, @@ -397,6 +400,8 @@ iomap_readpages(struct address_space *mapping, struct list_head *pages, loff_t last = page_offset(list_entry(pages->next, struct page, lru)); loff_t length = last - pos + PAGE_SIZE, ret = 0; + trace_iomap_readpages(mapping->host, nr_pages); + while (length > 0) { ret = iomap_apply(mapping->host, pos, length, 0, ops, &ctx, iomap_readpages_actor); @@ -463,6 +468,8 @@ EXPORT_SYMBOL_GPL(iomap_is_partially_uptodate); int iomap_releasepage(struct page *page, gfp_t gfp_mask) { + trace_iomap_releasepage(page->mapping->host, page, 0, 0); + /* * mm accommodates an old ext3 case where clean pages might not have had * the dirty bit cleared. Thus, it can send actual dirty pages to @@ -478,6 +485,8 @@ EXPORT_SYMBOL_GPL(iomap_releasepage); void iomap_invalidatepage(struct page *page, unsigned int offset, unsigned int len) { + trace_iomap_invalidatepage(page->mapping->host, page, offset, len); + /* * If we are invalidating the entire page, clear the dirty state from it * and release it to avoid unnecessary buildup of the LRU. |