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author | Kees Cook <keescook@chromium.org> | 2017-03-04 08:28:53 +0100 |
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committer | Kees Cook <keescook@chromium.org> | 2017-03-07 23:00:56 +0100 |
commit | 76cc9580e3fbd323651d06e8184a5a54e0e1066e (patch) | |
tree | 0543b98aec0098cbe571653ce8b6cb14362e133e /fs/pstore | |
parent | pstore: Replace arguments for read() API (diff) | |
download | linux-76cc9580e3fbd323651d06e8184a5a54e0e1066e.tar.xz linux-76cc9580e3fbd323651d06e8184a5a54e0e1066e.zip |
pstore: Replace arguments for write() API
Similar to the pstore_info read() callback, there were too many arguments.
This switches to the new struct pstore_record pointer instead. This adds
"reason" and "part" to the record structure as well.
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'fs/pstore')
-rw-r--r-- | fs/pstore/platform.c | 62 |
1 files changed, 35 insertions, 27 deletions
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 47968c2f2d0d..879658b4c679 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -484,7 +484,6 @@ static void pstore_dump(struct kmsg_dumper *dumper, { unsigned long total = 0; const char *why; - u64 id; unsigned int part = 1; unsigned long flags = 0; int is_locked; @@ -506,48 +505,59 @@ static void pstore_dump(struct kmsg_dumper *dumper, oopscount++; while (total < kmsg_bytes) { char *dst; - unsigned long size; - int hsize; + size_t dst_size; + int header_size; int zipped_len = -1; - size_t len; - bool compressed = false; - size_t total_len; + size_t dump_size; + struct pstore_record record = { + .type = PSTORE_TYPE_DMESG, + .count = oopscount, + .reason = reason, + .part = part, + .compressed = false, + .buf = psinfo->buf, + .psi = psinfo, + }; if (big_oops_buf && is_locked) { dst = big_oops_buf; - size = big_oops_buf_sz; + dst_size = big_oops_buf_sz; } else { dst = psinfo->buf; - size = psinfo->bufsize; + dst_size = psinfo->bufsize; } - hsize = sprintf(dst, "%s#%d Part%u\n", why, oopscount, part); - size -= hsize; + /* Write dump header. */ + header_size = snprintf(dst, dst_size, "%s#%d Part%u\n", why, + oopscount, part); + dst_size -= header_size; - if (!kmsg_dump_get_buffer(dumper, true, dst + hsize, - size, &len)) + /* Write dump contents. */ + if (!kmsg_dump_get_buffer(dumper, true, dst + header_size, + dst_size, &dump_size)) break; if (big_oops_buf && is_locked) { zipped_len = pstore_compress(dst, psinfo->buf, - hsize + len, psinfo->bufsize); + header_size + dump_size, + psinfo->bufsize); if (zipped_len > 0) { - compressed = true; - total_len = zipped_len; + record.compressed = true; + record.size = zipped_len; } else { - total_len = copy_kmsg_to_buffer(hsize, len); + record.size = copy_kmsg_to_buffer(header_size, + dump_size); } } else { - total_len = hsize + len; + record.size = header_size + dump_size; } - ret = psinfo->write(PSTORE_TYPE_DMESG, reason, &id, part, - oopscount, compressed, total_len, psinfo); + ret = psinfo->write(&record); if (ret == 0 && reason == KMSG_DUMP_OOPS && pstore_is_mounted()) pstore_new_entry = 1; - total += total_len; + total += record.size; part++; } if (is_locked) @@ -618,14 +628,12 @@ static void pstore_register_console(void) {} static void pstore_unregister_console(void) {} #endif -static int pstore_write_compat(enum pstore_type_id type, - enum kmsg_dump_reason reason, - u64 *id, unsigned int part, int count, - bool compressed, size_t size, - struct pstore_info *psi) +static int pstore_write_compat(struct pstore_record *record) { - return psi->write_buf(type, reason, id, part, psinfo->buf, compressed, - size, psi); + return record->psi->write_buf(record->type, record->reason, + &record->id, record->part, + psinfo->buf, record->compressed, + record->size, record->psi); } static int pstore_write_buf_user_compat(enum pstore_type_id type, |