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authorLinus Torvalds <torvalds@linux-foundation.org>2018-06-08 04:39:37 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-08 04:39:37 +0300
commit68abbe729567cef128b2c2141f2ed2567f3b8372 (patch)
treeaa75c39cc815eee4d7cc8db2988fe10879fccd3e /drivers/block/zram/zram_drv.h
parentba1b7309fc2e909a5828c36a7cd187e5d7df6f53 (diff)
parent016e92da037e0b43dd5e5848c19b0b9749506963 (diff)
downloadlinux-68abbe729567cef128b2c2141f2ed2567f3b8372.tar.xz
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: - a few misc things - ocfs2 updates - v9fs updates - MM - procfs updates - lib/ updates - autofs updates * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits) autofs: small cleanup in autofs_getpath() autofs: clean up includes autofs: comment on selinux changes needed for module autoload autofs: update MAINTAINERS entry for autofs autofs: use autofs instead of autofs4 in documentation autofs: rename autofs documentation files autofs: create autofs Kconfig and Makefile autofs: delete fs/autofs4 source files autofs: update fs/autofs4/Makefile autofs: update fs/autofs4/Kconfig autofs: copy autofs4 to autofs autofs4: use autofs instead of autofs4 everywhere autofs4: merge auto_fs.h and auto_fs4.h fs/binfmt_misc.c: do not allow offset overflow checkpatch: improve patch recognition lib/ucs2_string.c: add MODULE_LICENSE() lib/mpi: headers cleanup lib/percpu_ida.c: use _irqsave() instead of local_irq_save() + spin_lock lib/idr.c: remove simple_ida_lock lib/bitmap.c: micro-optimization for __bitmap_complement() ...
Diffstat (limited to 'drivers/block/zram/zram_drv.h')
-rw-r--r--drivers/block/zram/zram_drv.h14
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h
index 008861220723..72c8584b6dff 100644
--- a/drivers/block/zram/zram_drv.h
+++ b/drivers/block/zram/zram_drv.h
@@ -43,10 +43,11 @@
/* Flags for zram pages (table[page_no].value) */
enum zram_pageflags {
- /* Page consists the same element */
- ZRAM_SAME = ZRAM_FLAG_SHIFT,
- ZRAM_ACCESS, /* page is now accessed */
+ /* zram slot is locked */
+ ZRAM_LOCK = ZRAM_FLAG_SHIFT,
+ ZRAM_SAME, /* Page consists the same element */
ZRAM_WB, /* page is stored on backing_device */
+ ZRAM_HUGE, /* Incompressible page */
__NR_ZRAM_PAGEFLAGS,
};
@@ -60,6 +61,9 @@ struct zram_table_entry {
unsigned long element;
};
unsigned long value;
+#ifdef CONFIG_ZRAM_MEMORY_TRACKING
+ ktime_t ac_time;
+#endif
};
struct zram_stats {
@@ -71,6 +75,7 @@ struct zram_stats {
atomic64_t invalid_io; /* non-page-aligned I/O requests */
atomic64_t notify_free; /* no. of swap slot free notifications */
atomic64_t same_pages; /* no. of same element filled pages */
+ atomic64_t huge_pages; /* no. of huge pages */
atomic64_t pages_stored; /* no. of pages currently stored */
atomic_long_t max_used_pages; /* no. of maximum pages stored */
atomic64_t writestall; /* no. of write slow paths */
@@ -107,5 +112,8 @@ struct zram {
unsigned long nr_pages;
spinlock_t bitmap_lock;
#endif
+#ifdef CONFIG_ZRAM_MEMORY_TRACKING
+ struct dentry *debugfs_dir;
+#endif
};
#endif