diff options
| author | Liu ShuoX <shuox.liu@intel.com> | 2014-03-17 11:24:49 +1100 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2015-02-08 20:02:05 +0100 |
| commit | 42ecc20bee44d55eb266116e9101bca9f7d6637a (patch) | |
| tree | 9304b5c021804d3cbd7e09e248c004c24dd5044a /fs/pstore | |
| parent | 51173bf8141d0dc740689b99ce88721e568eec39 (diff) | |
| download | lwn-42ecc20bee44d55eb266116e9101bca9f7d6637a.tar.gz lwn-42ecc20bee44d55eb266116e9101bca9f7d6637a.zip | |
pstore: clarify clearing of _read_cnt in ramoops_context
commit 57fd835385a043577457a385f28c08be693991bf upstream.
*_read_cnt in ramoops_context need to be cleared during pstore ->open to
support mutli times getting the records. The patch added missed
ftrace_read_cnt clearing and removed duplicate clearing in ramoops_probe.
Signed-off-by: Liu ShuoX <shuox.liu@intel.com>
Cc: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Cc: Colin Cross <ccross@android.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: HuKeping <hukeping@huawei.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'fs/pstore')
| -rw-r--r-- | fs/pstore/ram.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index e7d95f959333..36ffe55b579d 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -92,6 +92,7 @@ struct ramoops_context { struct persistent_ram_ecc_info ecc_info; unsigned int max_dump_cnt; unsigned int dump_write_cnt; + /* _read_cnt need clear on ramoops_pstore_open */ unsigned int dump_read_cnt; unsigned int console_read_cnt; unsigned int ftrace_read_cnt; @@ -107,6 +108,7 @@ static int ramoops_pstore_open(struct pstore_info *psi) cxt->dump_read_cnt = 0; cxt->console_read_cnt = 0; + cxt->ftrace_read_cnt = 0; return 0; } @@ -435,7 +437,6 @@ static int ramoops_probe(struct platform_device *pdev) if (pdata->ftrace_size && !is_power_of_2(pdata->ftrace_size)) pdata->ftrace_size = rounddown_pow_of_two(pdata->ftrace_size); - cxt->dump_read_cnt = 0; cxt->size = pdata->mem_size; cxt->phys_addr = pdata->mem_address; cxt->memtype = pdata->mem_type; |