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-rw-r--r--fs/btrfs/compression.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index b189bd1e7a3e..6aad98cb343f 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -132,9 +132,8 @@ static int check_compressed_csum(struct inode *inode,
printk(KERN_INFO "btrfs csum failed ino %llu "
"extent %llu csum %u "
"wanted %u mirror %d\n",
- (unsigned long long)btrfs_ino(inode),
- (unsigned long long)disk_start,
- csum, *cb_sum, cb->mirror_num);
+ btrfs_ino(inode), disk_start, csum, *cb_sum,
+ cb->mirror_num);
ret = -EIO;
goto fail;
}
@@ -639,7 +638,11 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
faili = nr_pages - 1;
cb->nr_pages = nr_pages;
- add_ra_bio_pages(inode, em_start + em_len, cb);
+ /* In the parent-locked case, we only locked the range we are
+ * interested in. In all other cases, we can opportunistically
+ * cache decompressed data that goes beyond the requested range. */
+ if (!(bio_flags & EXTENT_BIO_PARENT_LOCKED))
+ add_ra_bio_pages(inode, em_start + em_len, cb);
/* include any pages we added in add_ra-bio_pages */
uncompressed_len = bio->bi_vcnt * PAGE_CACHE_SIZE;
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