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| author | Liu ShuoX <shuox.liu@intel.com> | 2014-03-17 11:24:49 +1100 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2014-03-17 14:14:03 -0700 |
| commit | 57fd835385a043577457a385f28c08be693991bf (patch) | |
| tree | c43eb4342d2182cbe5f7acd83ca9fbef217566f2 | |
| parent | dcb99fd9b08cfe1afe426af4d8d3cbc429190f15 (diff) | |
| download | linux-57fd835385a043577457a385f28c08be693991bf.tar.gz linux-57fd835385a043577457a385f28c08be693991bf.tar.bz2 linux-57fd835385a043577457a385f28c08be693991bf.zip | |
pstore: clarify clearing of _read_cnt in ramoops_context
*_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>
| -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 fa8cef2cca3a..9fe5b13295e0 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -86,6 +86,7 @@ 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; @@ -101,6 +102,7 @@ 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; } @@ -428,7 +430,6 @@ 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->record_size = pdata->record_size; |