LU-11712 osd-ldiskfs: Wrap blk integrity with config check

[fs/lustre-release.git] / lustre / include / lustre_compat.h

diff --git a/lustre/include/lustre_compat.h b/lustre/include/lustre_compat.h
index 158bbb3..f55f6e5 100644 (file)
--- a/lustre/include/lustre_compat.h
+++ b/lustre/include/lustre_compat.h
@@ -41,6 +41,7 @@
 #include <linux/bio.h>
 #include <linux/xattr.h>
 #include <linux/workqueue.h>
+#include <linux/blkdev.h>
 
 #include <libcfs/linux/linux-fs.h>
 #include <lustre_patchless_compat.h>
@@ -81,12 +82,6 @@ static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
                path_put(&old_pwd);
 }
 
-/*
- * set ATTR_BLOCKS to a high value to avoid any risk of collision with other
- * ATTR_* attributes (see bug 13828)
- */
-#define ATTR_BLOCKS    (1 << 27)
-
 #define current_ngroups current_cred()->group_info->ngroups
 #define current_groups current_cred()->group_info->small_block
 
@@ -153,6 +148,14 @@ static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
 #define SLAB_DESTROY_BY_RCU 0
 #endif
 
+#ifndef HAVE_INIT_LIST_HEAD_RCU
+static inline void INIT_LIST_HEAD_RCU(struct list_head *list)
+{
+       WRITE_ONCE(list->next, list);
+       WRITE_ONCE(list->prev, list);
+}
+#endif
+
 #ifndef HAVE_DQUOT_SUSPEND
 # define ll_vfs_dq_init             vfs_dq_init
 # define ll_vfs_dq_drop             vfs_dq_drop
@@ -183,6 +186,12 @@ static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
 #define bvl_to_page(bvl)               (bvl->bv_page)
 #endif
 
+#ifdef HAVE_BVEC_ITER
+#define bio_start_sector(bio) (bio->bi_iter.bi_sector)
+#else
+#define bio_start_sector(bio) (bio->bi_sector)
+#endif
+
 #ifndef HAVE_BLK_QUEUE_MAX_SEGMENTS
 #define blk_queue_max_segments(rq, seg)                      \
         do { blk_queue_max_phys_segments(rq, seg);           \
@@ -385,11 +394,6 @@ static inline int radix_tree_exceptional_entry(void *arg)
 static inline void truncate_inode_pages_final(struct address_space *map)
 {
        truncate_inode_pages(map, 0);
-               /* Workaround for LU-118 */
-       if (map->nrpages) {
-               spin_lock_irq(&map->tree_lock);
-               spin_unlock_irq(&map->tree_lock);
-       }       /* Workaround end */
 }
 #endif
 
@@ -697,4 +701,94 @@ static inline struct timespec current_time(struct inode *inode)
 #define READ_ONCE ACCESS_ONCE
 #endif
 
+#ifdef HAVE_BLK_INTEGRITY_ENABLED
+static inline unsigned short blk_integrity_interval(struct blk_integrity *bi)
+{
+#ifdef HAVE_INTERVAL_EXP_BLK_INTEGRITY
+       return bi->interval_exp ? 1 << bi->interval_exp : 0;
+#elif defined(HAVE_INTERVAL_BLK_INTEGRITY)
+       return bi->interval;
+#else
+       return bi->sector_size;
+#endif
+}
+
+static inline const char *blk_integrity_name(struct blk_integrity *bi)
+{
+#ifdef HAVE_INTERVAL_EXP_BLK_INTEGRITY
+       return bi->profile->name;
+#else
+       return bi->name;
+#endif
+}
+#else
+static inline unsigned short blk_integrity_interval(struct blk_integrity *bi)
+{
+       return 0;
+}
+static inline const char *blk_integrity_name(struct blk_integrity *bi)
+{
+       /* gcc8 dislikes when strcmp() is called against NULL */
+       return "";
+}
+#endif
+
+static inline unsigned int bip_size(struct bio_integrity_payload *bip)
+{
+#ifdef HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
+       return bip->bip_iter.bi_size;
+#else
+       return bip->bip_size;
+#endif
+}
+
+#ifdef HAVE_BLK_INTEGRITY_ENABLED
+#ifndef INTEGRITY_FLAG_READ
+#define INTEGRITY_FLAG_READ BLK_INTEGRITY_VERIFY
+#endif
+
+#ifndef INTEGRITY_FLAG_WRITE
+#define INTEGRITY_FLAG_WRITE BLK_INTEGRITY_GENERATE
+#endif
+
+static inline bool bdev_integrity_enabled(struct block_device *bdev, int rw)
+{
+       struct blk_integrity *bi = bdev_get_integrity(bdev);
+
+       if (bi == NULL)
+               return false;
+
+#ifdef HAVE_INTERVAL_EXP_BLK_INTEGRITY
+       if (rw == 0 && bi->profile->verify_fn != NULL &&
+           (bi->flags & INTEGRITY_FLAG_READ))
+               return true;
+
+       if (rw == 1 && bi->profile->generate_fn != NULL &&
+           (bi->flags & INTEGRITY_FLAG_WRITE))
+               return true;
+#else
+       if (rw == 0 && bi->verify_fn != NULL &&
+           (bi->flags & INTEGRITY_FLAG_READ))
+               return true;
+
+       if (rw == 1 && bi->generate_fn != NULL &&
+           (bi->flags & INTEGRITY_FLAG_WRITE))
+               return true;
+#endif
+
+       return false;
+}
+#else
+static inline bool bdev_integrity_enabled(struct block_device *bdev, int rw)
+{
+       return false;
+}
+#endif /* HAVE_BLK_INTEGRITY_ENABLED */
+
+#ifdef HAVE_PAGEVEC_INIT_ONE_PARAM
+#define ll_pagevec_init(pvec, n) pagevec_init(pvec)
+#else
+#define ll_pagevec_init(pvec, n) pagevec_init(pvec, n)
+#endif
+
 #endif /* _LUSTRE_COMPAT_H */