wrappers for ->i_mutex access

[deliverable/linux.git] / fs / btrfs / scrub.c

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 0c981ebe2acb427d5684bca46cc1281e61753905..92bf5ee732fb0e14f7e330dddaadccb4b70b35cc 100644 (file)
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2813,7 +2813,7 @@ out:
 
 static inline int scrub_calc_parity_bitmap_len(int nsectors)
 {
-       return DIV_ROUND_UP(nsectors, BITS_PER_LONG) * (BITS_PER_LONG / 8);
+       return DIV_ROUND_UP(nsectors, BITS_PER_LONG) * sizeof(long);
 }
 
 static void scrub_parity_get(struct scrub_parity *sparity)
@@ -3458,7 +3458,7 @@ static noinline_for_stack int scrub_chunk(struct scrub_ctx *sctx,
                return ret;
        }
 
-       map = (struct map_lookup *)em->bdev;
+       map = em->map_lookup;
        if (em->start != chunk_offset)
                goto out;
 
@@ -4279,7 +4279,7 @@ static int copy_nocow_pages_for_inode(u64 inum, u64 offset, u64 root,
                return PTR_ERR(inode);
 
        /* Avoid truncate/dio/punch hole.. */
-       mutex_lock(&inode->i_mutex);
+       inode_lock(inode);
        inode_dio_wait(inode);
 
        physical_for_dev_replace = nocow_ctx->physical_for_dev_replace;
@@ -4358,7 +4358,7 @@ next_page:
        }
        ret = COPY_COMPLETE;
 out:
-       mutex_unlock(&inode->i_mutex);
+       inode_unlock(inode);
        iput(inode);
        return ret;
 }