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btrfs: send: in case of IO error log it

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commit 2e7be9db125a0bf940c5d65eb5c40d8700f738b5 upstream.

Currently if we get IO error while doing send then we abort without
logging information about which file caused issue.  So log it to help
with debugging.

CC: stable@vger.kernel.org # 4.9+
Signed-off-by: Dāvis Mosāns <davispuh@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dāvis Mosāns 2022-02-05 20:48:23 +02:00 committed by Greg Kroah-Hartman
parent 3ff48a67ed
commit bd6492930a
1 changed files with 4 additions and 0 deletions
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4
fs/btrfs/send.c
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@ -5005,6 +5005,10 @@ static ssize_t fill_read_buf(struct send_ctx *sctx, u64 offset, u32 len)
lock_page(page);
if (!PageUptodate(page)) {
unlock_page(page);
btrfs_err(fs_info,
"send: IO error at offset %llu for inode %llu root %llu",
page_offset(page), sctx->cur_ino,
sctx->send_root->root_key.objectid);
put_page(page);
ret = -EIO;
break;