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nilfs2: convert BUG_ON() in nilfs_finish_roll_forward() to WARN_ON()

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The BUG_ON check performed on the return value of __getblk() in
nilfs_finish_roll_forward() assumes that a buffer that has been
successfully read once is retrieved with the same parameters and does not
fail (__getblk() does not return an error due to memory allocation
failure).  Also, nilfs_finish_roll_forward() is called at most once during
mount.

Taking these into consideration, rewrite the check to use WARN_ON() to
avoid using BUG_ON().

Link: https://lkml.kernel.org/r/20240508221429.7559-1-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Ryusuke Konishi 2024-05-09 07:14:29 +09:00 committed by Andrew Morton
parent b1be5844c1
commit 0a73eac1ed
1 changed files with 3 additions and 1 deletions
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4
fs/nilfs2/recovery.c
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@ -699,7 +699,9 @@ static void nilfs_finish_roll_forward(struct the_nilfs *nilfs,
return;
bh = __getblk(nilfs->ns_bdev, ri->ri_lsegs_start, nilfs->ns_blocksize);
BUG_ON(!bh);
if (WARN_ON(!bh))
return; /* should never happen */
memset(bh->b_data, 0, bh->b_size);
set_buffer_dirty(bh);
err = sync_dirty_buffer(bh);