linux-bredos

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Gao Xiang 7b5843b702 erofs: fix erofs_insert_workgroup() lockref usage

[ Upstream commit 1a0ac8bd7a ]

As Linus pointed out [1], lockref_put_return() is fundamentally
designed to be something that can fail.  It behaves as a fastpath-only
thing, and the failure case needs to be handled anyway.

Actually, since the new pcluster was just allocated without being
populated, it won't be accessed by others until it is inserted into
XArray, so lockref helpers are actually unneeded here.

Let's just set the proper reference count on initializing.

[1] https://lore.kernel.org/r/CAHk-=whCga8BeQnJ3ZBh_Hfm9ctba_wpF444LpwRybVNMzO6Dw@mail.gmail.com

Fixes: 7674a42f35 ("erofs: use struct lockref to replace handcrafted approach")
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20231031060524.1103921-1-hsiangkao@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-11-20 11:59:23 +01:00

compress.h

erofs: DEFLATE compression support

2023-08-11 12:11:17 +08:00

data.c

mm: remove enum page_entry_size

2023-08-24 16:20:30 -07:00

decompressor_deflate.c

erofs: DEFLATE compression support

2023-08-11 12:11:17 +08:00

decompressor_lzma.c

erofs: fix memory leak of LZMA global compressed deduplication