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authorChristoph Hellwig <hch@lst.de>2025-06-10 08:49:42 +0300
committerAndrew Morton <akpm@linux-foundation.org>2025-07-10 08:41:58 +0300
commita8fb49c6abbbe5c71e1a8a888ef2c4b3e341d169 (patch)
tree5094f549067fe2eb777f4a4a3d2192dedd322c9b /include
parent624043dbd5be03cc5a2b9175c3934e6fb0ef7c70 (diff)
downloadlinux-a8fb49c6abbbe5c71e1a8a888ef2c4b3e341d169.tar.xz
mm: remove the for_reclaim field from struct writeback_control
This field is now only set to one in the i915 gem code that only calls writeback_iter on it, which ignores the flag. All other checks are thuse dead code and the field can be removed. Link: https://lkml.kernel.org/r/20250610054959.2057526-7-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Chengming Zhou <chengming.zhou@linux.dev> Cc: Hugh Dickins <hughd@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Nhat Pham <nphamcs@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/writeback.h1
-rw-r--r--include/trace/events/btrfs.h7
-rw-r--r--include/trace/events/writeback.h8
3 files changed, 4 insertions, 12 deletions
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 9e960f2faf79..a2848d731a46 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -59,7 +59,6 @@ struct writeback_control {
unsigned for_kupdate:1; /* A kupdate writeback */
unsigned for_background:1; /* A background writeback */
unsigned tagged_writepages:1; /* tag-and-write to avoid livelock */
- unsigned for_reclaim:1; /* Invoked from the page allocator */
unsigned range_cyclic:1; /* range_start is cyclic */
unsigned for_sync:1; /* sync(2) WB_SYNC_ALL writeback */
unsigned unpinned_netfs_wb:1; /* Cleared I_PINNING_NETFS_WB */
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index bebc252db865..0adc40f5e72b 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -686,7 +686,6 @@ DECLARE_EVENT_CLASS(btrfs__writepage,
__field( loff_t, range_start )
__field( loff_t, range_end )
__field( char, for_kupdate )
- __field( char, for_reclaim )
__field( char, range_cyclic )
__field( unsigned long, writeback_index )
__field( u64, root_objectid )
@@ -700,7 +699,6 @@ DECLARE_EVENT_CLASS(btrfs__writepage,
__entry->range_start = wbc->range_start;
__entry->range_end = wbc->range_end;
__entry->for_kupdate = wbc->for_kupdate;
- __entry->for_reclaim = wbc->for_reclaim;
__entry->range_cyclic = wbc->range_cyclic;
__entry->writeback_index = inode->i_mapping->writeback_index;
__entry->root_objectid = btrfs_root_id(BTRFS_I(inode)->root);
@@ -709,13 +707,12 @@ DECLARE_EVENT_CLASS(btrfs__writepage,
TP_printk_btrfs("root=%llu(%s) ino=%llu page_index=%lu "
"nr_to_write=%ld pages_skipped=%ld range_start=%llu "
"range_end=%llu for_kupdate=%d "
- "for_reclaim=%d range_cyclic=%d writeback_index=%lu",
+ "range_cyclic=%d writeback_index=%lu",
show_root_type(__entry->root_objectid),
__entry->ino, __entry->index,
__entry->nr_to_write, __entry->pages_skipped,
__entry->range_start, __entry->range_end,
- __entry->for_kupdate,
- __entry->for_reclaim, __entry->range_cyclic,
+ __entry->for_kupdate, __entry->range_cyclic,
__entry->writeback_index)
);
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h
index 0ff388131fc9..1e23919c0da9 100644
--- a/include/trace/events/writeback.h
+++ b/include/trace/events/writeback.h
@@ -459,7 +459,6 @@ DECLARE_EVENT_CLASS(wbc_class,
__field(int, sync_mode)
__field(int, for_kupdate)
__field(int, for_background)
- __field(int, for_reclaim)
__field(int, range_cyclic)
__field(long, range_start)
__field(long, range_end)
@@ -473,23 +472,20 @@ DECLARE_EVENT_CLASS(wbc_class,
__entry->sync_mode = wbc->sync_mode;
__entry->for_kupdate = wbc->for_kupdate;
__entry->for_background = wbc->for_background;
- __entry->for_reclaim = wbc->for_reclaim;
__entry->range_cyclic = wbc->range_cyclic;
__entry->range_start = (long)wbc->range_start;
__entry->range_end = (long)wbc->range_end;
__entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
),
- TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
- "bgrd=%d reclm=%d cyclic=%d "
- "start=0x%lx end=0x%lx cgroup_ino=%lu",
+ TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d bgrd=%d "
+ "cyclic=%d start=0x%lx end=0x%lx cgroup_ino=%lu",
__entry->name,
__entry->nr_to_write,
__entry->pages_skipped,
__entry->sync_mode,
__entry->for_kupdate,
__entry->for_background,
- __entry->for_reclaim,
__entry->range_cyclic,
__entry->range_start,
__entry->range_end,