diff options
| author | Joel Fernandes (Google) <joel@joelfernandes.org> | 2018-10-17 12:13:55 +0200 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2018-10-22 16:11:58 +0200 |
| commit | 416031653eb55f844e3547fb8f8576399a800da0 (patch) | |
| tree | 34316a8c8acabd4ece304c2374ef87084aa41d81 /fs/pstore | |
| parent | pstore: Centralize init/exit routines (diff) | |
| download | linux-416031653eb55f844e3547fb8f8576399a800da0.tar.xz linux-416031653eb55f844e3547fb8f8576399a800da0.zip | |
pstore: Allocate compression during late_initcall()
ramoops's call of pstore_register() was recently moved to run during
late_initcall() because the crypto backend may not have been ready during
postcore_initcall(). This meant early-boot crash dumps were not getting
caught by pstore any more.
Instead, lets allow calls to pstore_register() earlier, and once crypto
is ready we can initialize the compression.
Reported-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Fixes: cb3bee0369bc ("pstore: Use crypto compress API")
[kees: trivial rebase]
Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: Guenter Roeck <groeck@chromium.org>
Diffstat (limited to 'fs/pstore')
| -rw-r--r-- | fs/pstore/platform.c | 10 | ||||
| -rw-r--r-- | fs/pstore/ram.c | 2 |
2 files changed, 10 insertions, 2 deletions
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index d61e26812af6..578f178a695f 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -786,13 +786,21 @@ static int __init pstore_init(void) pstore_choose_compression(); + /* + * Check if any pstore backends registered earlier but did not + * initialize compression because crypto was not ready. If so, + * initialize compression now. + */ + if (psinfo && !tfm) + allocate_buf_for_compression(); + ret = pstore_init_fs(); if (ret) return ret; return 0; } -module_init(pstore_init) +late_initcall(pstore_init); static void __exit pstore_exit(void) { diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index bbd1e357c23d..98e48d1a9776 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -940,7 +940,7 @@ static int __init ramoops_init(void) ramoops_register_dummy(); return platform_driver_register(&ramoops_driver); } -late_initcall(ramoops_init); +postcore_initcall(ramoops_init); static void __exit ramoops_exit(void) { |