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authorMatthew Wilcox (Oracle) <willy@infradead.org>2021-05-05 04:32:54 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-05-05 21:27:20 +0300
commit8bc3c481b3d0dcef2cf8e1b7c6b780af6725f7e3 (patch)
tree57adc1902af67ab1fe738d20497327ed15a4bd34
parent7f0e07fb0289519af7e726e4f7b7118f7ecc979b (diff)
downloadlinux-8bc3c481b3d0dcef2cf8e1b7c6b780af6725f7e3.tar.xz
mm: remove nrexceptional from inode
We no longer track anything in nrexceptional, so remove it, saving 8 bytes per inode. Link: https://lkml.kernel.org/r/20201026151849.24232-5-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Tested-by: Vishal Verma <vishal.l.verma@intel.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/inode.c2
-rw-r--r--include/linux/fs.h2
2 files changed, 1 insertions, 3 deletions
diff --git a/fs/inode.c b/fs/inode.c
index 9e192bea0630..af48d1b722f0 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -529,7 +529,7 @@ void clear_inode(struct inode *inode)
*/
xa_lock_irq(&inode->i_data.i_pages);
BUG_ON(inode->i_data.nrpages);
- BUG_ON(inode->i_data.nrexceptional);
+ BUG_ON(!mapping_empty(&inode->i_data));
xa_unlock_irq(&inode->i_data.i_pages);
BUG_ON(!list_empty(&inode->i_data.private_list));
BUG_ON(!(inode->i_state & I_FREEING));
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 12766edee81f..acef282b97c6 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -442,7 +442,6 @@ int pagecache_write_end(struct file *, struct address_space *mapping,
* @i_mmap: Tree of private and shared mappings.
* @i_mmap_rwsem: Protects @i_mmap and @i_mmap_writable.
* @nrpages: Number of page entries, protected by the i_pages lock.
- * @nrexceptional: Shadow or DAX entries, protected by the i_pages lock.
* @writeback_index: Writeback starts here.
* @a_ops: Methods.
* @flags: Error bits and flags (AS_*).
@@ -463,7 +462,6 @@ struct address_space {
struct rb_root_cached i_mmap;
struct rw_semaphore i_mmap_rwsem;
unsigned long nrpages;
- unsigned long nrexceptional;
pgoff_t writeback_index;
const struct address_space_operations *a_ops;
unsigned long flags;