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| author | David Howells <dhowells@redhat.com> | 2017-11-02 15:27:53 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2017-11-13 15:38:21 +0000 |
| commit | 13524ab3c6f41bcd257d28644414297bea8282b7 (patch) | |
| tree | 9ac5ab8bfd44026bb13783cf540f4fdb57d72d44 /fs/afs/file.c | |
| parent | 1cf7a1518aefa69ac6ba0c3f9206073e4221e3c8 (diff) | |
| download | linux-13524ab3c6f41bcd257d28644414297bea8282b7.tar.gz linux-13524ab3c6f41bcd257d28644414297bea8282b7.tar.bz2 linux-13524ab3c6f41bcd257d28644414297bea8282b7.zip | |
afs: Trace page dirty/clean
Add a trace event that logs the dirtying and cleaning of pages attached to
AFS inodes.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/afs/file.c')
| -rw-r--r-- | fs/afs/file.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/afs/file.c b/fs/afs/file.c index 675c5c268a52..a39192ced99e 100644 --- a/fs/afs/file.c +++ b/fs/afs/file.c @@ -583,6 +583,9 @@ static int afs_readpages(struct file *file, struct address_space *mapping, static void afs_invalidatepage(struct page *page, unsigned int offset, unsigned int length) { + struct afs_vnode *vnode = AFS_FS_I(page->mapping->host); + unsigned long priv; + _enter("{%lu},%u,%u", page->index, offset, length); BUG_ON(!PageLocked(page)); @@ -598,6 +601,9 @@ static void afs_invalidatepage(struct page *page, unsigned int offset, #endif if (PagePrivate(page)) { + priv = page_private(page); + trace_afs_page_dirty(vnode, tracepoint_string("inval"), + page->index, priv); set_page_private(page, 0); ClearPagePrivate(page); } @@ -613,6 +619,7 @@ static void afs_invalidatepage(struct page *page, unsigned int offset, static int afs_releasepage(struct page *page, gfp_t gfp_flags) { struct afs_vnode *vnode = AFS_FS_I(page->mapping->host); + unsigned long priv; _enter("{{%x:%u}[%lu],%lx},%x", vnode->fid.vid, vnode->fid.vnode, page->index, page->flags, @@ -628,6 +635,9 @@ static int afs_releasepage(struct page *page, gfp_t gfp_flags) #endif if (PagePrivate(page)) { + priv = page_private(page); + trace_afs_page_dirty(vnode, tracepoint_string("rel"), + page->index, priv); set_page_private(page, 0); ClearPagePrivate(page); } |