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| author | H. Peter Anvin <hpa@linux.intel.com> | 2014-02-14 11:11:18 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-02-14 11:11:18 -0800 |
| commit | 31fce91e7afc25c666276f65f019bc13fd27e216 (patch) | |
| tree | 24f9673614a98a06fd8f4254c63b306dddd5aac6 /fs/btrfs/compression.c | |
| parent | 4640c7ee9b8953237d05a61ea3ea93981d1bc961 (diff) | |
| parent | 09503379dc99535b1bbfa51aa1aeef340f5d82ec (diff) | |
| download | op-kernel-dev-31fce91e7afc25c666276f65f019bc13fd27e216.zip op-kernel-dev-31fce91e7afc25c666276f65f019bc13fd27e216.tar.gz | |
Merge remote-tracking branch 'efi/urgent' into x86/urgent
There have been reports of EFI crashes since -rc1. The following two
commits fix known issues.
* Fix boot failure on 32-bit EFI due to the recent EFI memmap changes
merged during the merge window - Borislav Petkov
* Avoid a crash during efi_bgrt_init() by detecting invalid BGRT
headers based on the 'status' field.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'fs/btrfs/compression.c')
| -rw-r--r-- | fs/btrfs/compression.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index e2600cd..b01fb6c 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -1010,6 +1010,8 @@ int btrfs_decompress_buf2page(char *buf, unsigned long buf_start, bytes = min(bytes, working_bytes); kaddr = kmap_atomic(page_out); memcpy(kaddr + *pg_offset, buf + buf_offset, bytes); + if (*pg_index == (vcnt - 1) && *pg_offset == 0) + memset(kaddr + bytes, 0, PAGE_CACHE_SIZE - bytes); kunmap_atomic(kaddr); flush_dcache_page(page_out); |
