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ANDROID: Incremental fs: Mark merkle tree pages uptodate

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The merkle tree pages at the end of the incremental files were being
zero'd and marked uptodate on 5.15. Mark uptodate on creation to prevent
this.

Bug: 197663427
Test: The test in that bug now passes on 5.15 kernel
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: I5c0781c51bfbc64929e7a465db1ae975ce5928f9
(cherry picked from commit 68d2a58b28)
This commit is contained in:
Paul Lawrence
2022-02-01 17:56:46 +00:00
parent 0d5c23b8b4
commit 9d2f688e65
1 changed files with 2 additions and 0 deletions
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2
fs/incfs/data_mgmt.c
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@@ -719,6 +719,7 @@ static int validate_hash_tree(struct backing_file_context *bfc, struct file *f,
memcpy(stored_digest, addr + hash_offset_in_block[lvl],
digest_size);
kunmap_atomic(addr);
put_page(page);
continue;
@@ -766,6 +767,7 @@ static int validate_hash_tree(struct backing_file_context *bfc, struct file *f,
memcpy(addr, buf, INCFS_DATA_FILE_BLOCK_SIZE);
kunmap_atomic(addr);
SetPageChecked(page);
SetPageUptodate(page);
unlock_page(page);
put_page(page);
}