kernel.git/fs/erofs/dir.c, branch linux-6.5.y

erofs: keep meta inode into erofs_buf

2023-04-16T17:15:50Z

So that erofs_read_metadata() can read metadata from other inodes (e.g. packed inode) as well. Signed-off-by: Jingbo Xu Acked-by: Chao Yu Link: https://lore.kernel.org/r/20230407141710.113882-2-jefflexu@linux.alibaba.com Signed-off-by: Gao Xiang

erofs: avoid hardcoded blocksize for subpage block support

2023-04-16T17:15:44Z

As the first step of converting hardcoded blocksize to that specified in on-disk superblock, convert all call sites of hardcoded blocksize to sb->s_blocksize except for: 1) use sbi->blkszbits instead of sb->s_blocksize in erofs_superblock_csum_verify() since sb->s_blocksize has not been updated with the on-disk blocksize yet when the function is called. 2) use inode->i_blkbits instead of sb->s_blocksize in erofs_bread(), since the inode operated on may be an anonymous inode in fscache mode. Currently the anonymous inode is allocated from an anonymous mount maintained in erofs, while in the near future we may allocate anonymous inodes from a generic API directly and thus have no access to the anonymous inode's i_sb. Thus we keep the block size in i_blkbits for anonymous inodes in fscache mode. Be noted that this patch only gets rid of the hardcoded blocksize, in preparation for actually setting the on-disk block size in the following patch. The hard limit of constraining the block size to PAGE_SIZE still exists until the next patch. Signed-off-by: Jingbo Xu Reviewed-by: Gao Xiang Reviewed-by: Yue Hu Reviewed-by: Chao Yu Link: https://lore.kernel.org/r/20230313135309.75269-2-jefflexu@linux.alibaba.com [ Gao Xiang: fold a patch to fix incorrect truncated offsets. ] Link: https://lore.kernel.org/r/20230413035734.15457-1-zhujia.zj@bytedance.com Signed-off-by: Gao Xiang

erofs: get rid of debug_one_dentry()

2023-02-15T00:11:23Z

Since erofsdump is available, no need to keep this debugging functionality at all. Also drop a useless comment since it's the VFS behavior. Link: https://lore.kernel.org/r/20230114125746.399253-1-xiang@kernel.org Reviewed-by: Yue Hu Reviewed-by: Jingbo Xu Reviewed-by: Chao Yu Signed-off-by: Gao Xiang

erofs: update ctx->pos for every emitted dirent

2022-07-31T14:26:29Z

erofs_readdir update ctx->pos after filling a batch of dentries and it may cause dir/files duplication for NFS readdirplus which depends on ctx->pos to fill dir correctly. So update ctx->pos for every emitted dirent in erofs_fill_dentries to fix it. Also fix the update of ctx->pos when the initial file position has exceeded nameoff. Fixes: 3e917cc305c6 ("erofs: make filesystem exportable") Signed-off-by: Hongnan Li Signed-off-by: Jeffle Xu Reviewed-by: Gao Xiang Reviewed-by: Chao Yu Link: https://lore.kernel.org/r/20220722082732.30935-1-jefflexu@linux.alibaba.com Signed-off-by: Gao Xiang

erofs: get rid of the leftover PAGE_SIZE in dir.c

2022-07-22T13:46:26Z

Convert the last hardcoded PAGE_SIZEs of uncompressed cases. Reviewed-by: Jeffle Xu Signed-off-by: Gao Xiang Link: https://lore.kernel.org/r/20220619150940.121005-1-hsiangkao@linux.alibaba.com

erofs: use meta buffers for reading directories

2022-03-16T16:09:02Z

Previously, directory inodes are directly handled with page cache interfaces. In order to support sub-page directory blocks and folios, let's convert them into the latest metabuf infrastructure as well and this patch addresses the readdir case first. Link: https://lore.kernel.org/r/20220316012246.95131-1-hsiangkao@linux.alibaba.com Reviewed-by: Chao Yu Signed-off-by: Gao Xiang

erofs: clean up file headers & footers

2021-06-07T16:41:24Z

- Remove my outdated misleading email address; - Get rid of all unnecessary trailing newline by accident. Link: https://lore.kernel.org/r/20210602160634.10757-1-xiang@kernel.org Reviewed-by: Chao Yu Signed-off-by: Gao Xiang

erofs: Replace HTTP links with HTTPS ones

2020-08-03T13:04:29Z

Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Reviewed-by: Gao Xiang Reviewed-by: Chao Yu Signed-off-by: Alexander A. Klimov Link: https://lore.kernel.org/r/20200713130944.34419-1-grandmaster@al2klimov.de Signed-off-by: Gao Xiang

erofs: rename errln/infoln/debugln to erofs_{err, info, dbg}

2019-09-05T18:10:09Z

Add prefix "erofs_" to these functions and print sb->s_id as a prefix to erofs_{err, info} so that the user knows which file system is affected. Reported-by: Christoph Hellwig Signed-off-by: Gao Xiang Link: https://lore.kernel.org/r/20190904020912.63925-23-gaoxiang25@huawei.com Signed-off-by: Greg Kroah-Hartman

erofs: use erofs_inode naming

2019-09-05T18:10:07Z

As Christoph suggested [1], "Why is this called vnode instead of inode? That seems like a rather odd naming for a Linux file system." [1] https://lore.kernel.org/r/20190829101545.GC20598@infradead.org/ Reported-by: Christoph Hellwig Signed-off-by: Gao Xiang Link: https://lore.kernel.org/r/20190904020912.63925-10-gaoxiang25@huawei.com Signed-off-by: Greg Kroah-Hartman