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authorLinus Torvalds <torvalds@linux-foundation.org>2018-11-30 09:03:15 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-11-30 09:03:15 -0800
commite9eaf72e73d6159afbf90a9a02c24f2099067992 (patch)
tree7ce11273cf7e6e999c5053464e994b4a269e756f /include
parentMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma (diff)
parentpstore/ram: Correctly calculate usable PRZ bytes (diff)
downloadlinux-dev-e9eaf72e73d6159afbf90a9a02c24f2099067992.tar.xz
linux-dev-e9eaf72e73d6159afbf90a9a02c24f2099067992.zip
Merge tag 'pstore-v4.20-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull pstore fix from Kees Cook: "Fix corrupted compression due to unlucky size choice with ECC" * tag 'pstore-v4.20-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: pstore/ram: Correctly calculate usable PRZ bytes
Diffstat (limited to 'include')
-rw-r--r--include/linux/pstore.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/pstore.h b/include/linux/pstore.h
index a15bc4d48752..30fcec375a3a 100644
--- a/include/linux/pstore.h
+++ b/include/linux/pstore.h
@@ -90,7 +90,10 @@ struct pstore_record {
*
* @buf_lock: spinlock to serialize access to @buf
* @buf: preallocated crash dump buffer
- * @bufsize: size of @buf available for crash dump writes
+ * @bufsize: size of @buf available for crash dump bytes (must match
+ * smallest number of bytes available for writing to a
+ * backend entry, since compressed bytes don't take kindly
+ * to being truncated)
*
* @read_mutex: serializes @open, @read, @close, and @erase callbacks
* @flags: bitfield of frontends the backend can accept writes for