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63bbb85658
android_kernel_samsung_sm8650/fs/erofs
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Gao Xiang 63bbb85658 erofs: shouldn't churn the mapping page for duplicated copies 
If other duplicated copies exist in one decompression shot, should
leave the old page as is rather than replace it with the new duplicated
one.  Otherwise, the following cold path to deal with duplicated copies
will use the invalid bvec.  It impacts compressed data deduplication.

Also, shift the onlinepage EIO bit to avoid touching the signed bit.

Fixes: 267f2492c8 ("erofs: introduce multi-reference pclusters (fully-referenced)")
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20221012045056.13421-1-hsiangkao@linux.alibaba.com
2022-10-17 06:55:49 +08:00
..
compress.h erofs: introduce multi-reference pclusters (fully-referenced) 2022-07-22 21:44:27 +08:00
data.c erofs: get rid of erofs_prepare_dio() helper 2022-07-22 21:46:03 +08:00
decompressor_lzma.c erofs: introduce partial-referenced pclusters 2022-09-26 23:55:43 +08:00
decompressor.c erofs: support interlaced uncompressed data for compressed files 2022-09-23 10:55:56 +08:00
dir.c erofs: update ctx->pos for every emitted dirent 2022-07-31 22:26:29 +08:00
erofs_fs.h erofs: introduce partial-referenced pclusters 2022-09-26 23:55:43 +08:00
fscache.c erofs: clean up .read_folio() and .readahead() in fscache mode 2022-09-23 09:52:42 +08:00
inode.c erofs: clean up erofs_iget() 2022-09-27 17:27:45 +08:00
internal.h erofs: clean up erofs_iget() 2022-09-27 17:27:45 +08:00
Kconfig erofs: register fscache volume 2022-05-18 00:11:19 +08:00
Makefile erofs: register fscache volume 2022-05-18 00:11:19 +08:00
namei.c erofs: clean up erofs_iget() 2022-09-27 17:27:45 +08:00
pcpubuf.c erofs: get rid of ->lru usage 2021-10-25 08:22:59 +08:00
super.c erofs: clean up erofs_iget() 2022-09-27 17:27:45 +08:00
sysfs.c erofs: introduce partial-referenced pclusters 2022-09-26 23:55:43 +08:00
tagptr.h erofs: clean up file headers & footers 2021-06-08 00:41:24 +08:00
utils.c mm: shrinkers: provide shrinkers with names 2022-07-03 18:08:40 -07:00
xattr.c erofs: use meta buffers for xattr operations 2022-01-04 23:47:08 +08:00
xattr.h erofs: clean up unnecessary code and comments 2022-09-27 17:27:25 +08:00
zdata.c erofs: shouldn't churn the mapping page for duplicated copies 2022-10-17 06:55:49 +08:00
zdata.h erofs: shouldn't churn the mapping page for duplicated copies 2022-10-17 06:55:49 +08:00
zmap.c erofs: fix illegal unmapped accesses in z_erofs_fill_inode_lazy() 2022-10-17 06:55:48 +08:00