kernel/include/trace/events/erofs.h, branch linux-6.18.y

erofs: remove unused trace event erofs_destroy_inode

2025-06-18T05:41:16Z

The trace event `erofs_destroy_inode` was added but remains unused. This unused event contributes approximately 5KB to the kernel module size. Reported-by: Steven Rostedt Closes: https://lore.kernel.org/r/20250612224906.15000244@batman.local.home Fixes: 13f06f48f7bf ("staging: erofs: support tracepoint") Cc: stable@vger.kernel.org Reviewed-by: Hongbo Li Signed-off-by: Gao Xiang Link: https://lore.kernel.org/r/20250617054056.3232365-1-hsiangkao@linux.alibaba.com

erofs: refine readahead tracepoint

2025-05-15T21:56:38Z

- trace_erofs_readpages => trace_erofs_readahead; - Rename a redundant statement `nrpages = readahead_count(rac);`; - Move the tracepoint to the beginning of z_erofs_readahead(). Signed-off-by: Gao Xiang Reviewed-by: Hongbo Li Link: https://lore.kernel.org/r/20250514120820.2739288-1-hsiangkao@linux.alibaba.com Signed-off-by: Gao Xiang

erofs: implement 48-bit block addressing for unencoded inodes

2025-03-16T17:25:26Z

It adapts the on-disk changes from the previous commit. It also supports EROFS_NULL_ADDR (all 1's) for EROFS_INODE_FLAT_PLAIN inodes to indicate 0-filled inodes, as it's common for composefs use cases. As a result, EROFS_INODE_CHUNK_BASED is no longer needed. Signed-off-by: Gao Xiang Acked-by: Chao Yu Link: https://lore.kernel.org/r/20250310095459.2620647-5-hsiangkao@linux.alibaba.com

erofs: get rid of z_erofs_map_blocks_iter_* tracepoints

2024-07-10T10:57:06Z

Consolidate them under erofs_map_blocks_* for simplicity since we have many other ways to know if a given inode is compressed or not. Signed-off-by: Hongzhen Luo Reviewed-by: Gao Xiang Link: https://lore.kernel.org/r/20240710083459.208362-1-hongzhen@linux.alibaba.com Signed-off-by: Gao Xiang

tracing/treewide: Remove second parameter of __assign_str()

2024-05-23T00:14:47Z

With the rework of how the __string() handles dynamic strings where it saves off the source string in field in the helper structure[1], the assignment of that value to the trace event field is stored in the helper value and does not need to be passed in again. This means that with: __string(field, mystring) Which use to be assigned with __assign_str(field, mystring), no longer needs the second parameter and it is unused. With this, __assign_str() will now only get a single parameter. There's over 700 users of __assign_str() and because coccinelle does not handle the TRACE_EVENT() macro I ended up using the following sed script: git grep -l __assign_str | while read a ; do sed -e 's/$__assign_str([^,]*[^ ,]$ *,[^;]*/\1)/' $a > /tmp/test-file; mv /tmp/test-file $a; done I then searched for __assign_str() that did not end with ';' as those were multi line assignments that the sed script above would fail to catch. Note, the same updates will need to be done for: __assign_str_len() __assign_rel_str() __assign_rel_str_len() I tested this with both an allmodconfig and an allyesconfig (build only for both). [1] https://lore.kernel.org/linux-trace-kernel/20240222211442.634192653@goodmis.org/ Link: https://lore.kernel.org/linux-trace-kernel/20240516133454.681ba6a0@rorschach.local.home Cc: Masami Hiramatsu Cc: Mathieu Desnoyers Cc: Linus Torvalds Cc: Julia Lawall Signed-off-by: Steven Rostedt (Google) Acked-by: Jani Nikula Acked-by: Christian König for the amdgpu parts. Acked-by: Thomas Hellström #for Acked-by: Rafael J. Wysocki # for thermal Acked-by: Takashi Iwai Acked-by: Darrick J. Wong # xfs Tested-by: Guenter Roeck

erofs: adapt folios for z_erofs_read_folio()

2023-08-23T15:47:33Z

It's a straight-forward conversion and no logic changes (except that it renames the corresponding tracepoint.) Reviewed-by: Chao Yu Signed-off-by: Gao Xiang Link: https://lore.kernel.org/r/20230817083942.103303-1-hsiangkao@linux.alibaba.com

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: remove unused EROFS_GET_BLOCKS_RAW flag

2023-02-15T00:11:26Z

For erofs_map_blocks() and erofs_map_blocks_flatmode(), the flags argument is always EROFS_GET_BLOCKS_RAW. Thus remove the unused flags parameter for these two functions. Besides EROFS_GET_BLOCKS_RAW is originally introduced for reading compressed (raw) data for compressed files. However it's never used actually and let's remove it now. Signed-off-by: Jingbo Xu Reviewed-by: Yue Hu Reviewed-by: Gao Xiang Reviewed-by: Chao Yu Link: https://lore.kernel.org/r/20230209024825.17335-2-jefflexu@linux.alibaba.com Signed-off-by: Gao Xiang

erofs: update print symbols for various flags in trace

2023-02-15T00:11:26Z

As new flags introduced, the corresponding print symbols for trace are not added accordingly. Add these missing print symbols for these flags. Signed-off-by: Jingbo Xu Reviewed-by: Yue Hu Reviewed-by: Gao Xiang Reviewed-by: Chao Yu Link: https://lore.kernel.org/r/20230209024825.17335-1-jefflexu@linux.alibaba.com Signed-off-by: Gao Xiang

erofs: simplify iloc()

2023-02-15T00:11:24Z

Actually we could pass in inodes directly to clean up all callers. Also rename iloc() as erofs_iloc(). Link: https://lore.kernel.org/r/20230114150823.432069-1-xiang@kernel.org Reviewed-by: Yue Hu Reviewed-by: Jingbo Xu Reviewed-by: Chao Yu Signed-off-by: Gao Xiang