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| author | Ingo Molnar <mingo@kernel.org> | 2022-11-21 22:54:36 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2022-11-21 23:01:51 +0100 |
| commit | 0ce096db719ebaf46d4faf93e1ed1341c1853919 (patch) | |
| tree | 41c8826034eb5b430adf97d43fb0f2dce78325ba /fs/squashfs/file.c | |
| parent | 2d08a893b87cf9b2f9dbb3afaff60ca4530d55a2 (diff) | |
| parent | eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 (diff) | |
| download | lwn-0ce096db719ebaf46d4faf93e1ed1341c1853919.tar.gz lwn-0ce096db719ebaf46d4faf93e1ed1341c1853919.zip | |
Merge tag 'v6.1-rc6' into x86/core, to resolve conflicts
Resolve conflicts between these commits in arch/x86/kernel/asm-offsets.c:
# upstream:
debc5a1ec0d1 ("KVM: x86: use a separate asm-offsets.c file")
# retbleed work in x86/core:
5d8213864ade ("x86/retbleed: Add SKL return thunk")
... and these commits in include/linux/bpf.h:
# upstram:
18acb7fac22f ("bpf: Revert ("Fix dispatcher patchable function entry to 5 bytes nop")")
# x86/core commits:
931ab63664f0 ("x86/ibt: Implement FineIBT")
bea75b33895f ("x86/Kconfig: Introduce function padding")
The latter two modify BPF_DISPATCHER_ATTRIBUTES(), which was removed upstream.
Conflicts:
arch/x86/kernel/asm-offsets.c
include/linux/bpf.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/squashfs/file.c')
| -rw-r--r-- | fs/squashfs/file.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/fs/squashfs/file.c b/fs/squashfs/file.c index e56510964b22..8ba8c4c50770 100644 --- a/fs/squashfs/file.c +++ b/fs/squashfs/file.c @@ -506,8 +506,9 @@ static int squashfs_readahead_fragment(struct page **page, squashfs_i(inode)->fragment_size); struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; unsigned int n, mask = (1 << (msblk->block_log - PAGE_SHIFT)) - 1; + int error = buffer->error; - if (buffer->error) + if (error) goto out; expected += squashfs_i(inode)->fragment_offset; @@ -529,7 +530,7 @@ static int squashfs_readahead_fragment(struct page **page, out: squashfs_cache_put(buffer); - return buffer->error; + return error; } static void squashfs_readahead(struct readahead_control *ractl) @@ -557,6 +558,13 @@ static void squashfs_readahead(struct readahead_control *ractl) int res, bsize; u64 block = 0; unsigned int expected; + struct page *last_page; + + expected = start >> msblk->block_log == file_end ? + (i_size_read(inode) & (msblk->block_size - 1)) : + msblk->block_size; + + max_pages = (expected + PAGE_SIZE - 1) >> PAGE_SHIFT; nr_pages = __readahead_batch(ractl, pages, max_pages); if (!nr_pages) @@ -566,13 +574,10 @@ static void squashfs_readahead(struct readahead_control *ractl) goto skip_pages; index = pages[0]->index >> shift; + if ((pages[nr_pages - 1]->index >> shift) != index) goto skip_pages; - expected = index == file_end ? - (i_size_read(inode) & (msblk->block_size - 1)) : - msblk->block_size; - if (index == file_end && squashfs_i(inode)->fragment_block != SQUASHFS_INVALID_BLK) { res = squashfs_readahead_fragment(pages, nr_pages, @@ -593,15 +598,15 @@ static void squashfs_readahead(struct readahead_control *ractl) res = squashfs_read_data(inode->i_sb, block, bsize, NULL, actor); - squashfs_page_actor_free(actor); + last_page = squashfs_page_actor_free(actor); if (res == expected) { int bytes; /* Last page (if present) may have trailing bytes not filled */ bytes = res % PAGE_SIZE; - if (pages[nr_pages - 1]->index == file_end && bytes) - memzero_page(pages[nr_pages - 1], bytes, + if (index == file_end && bytes && last_page) + memzero_page(last_page, bytes, PAGE_SIZE - bytes); for (i = 0; i < nr_pages; i++) { |