diff options
| author | Luck, Tony <tony.luck@intel.com> | 2013-12-19 00:17:10 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-12-20 22:12:01 +0100 |
| commit | df36ac1bc2a166eef90785d584e4cfed6f52bd32 (patch) | |
| tree | 024eb6ee8e997889d9cd31ed97503a158ebf898b /fs/pstore | |
| parent | Merge tag 'dmaengine-fixes-3.13-rc4' of git://git.kernel.org/pub/scm/linux/ke... (diff) | |
| download | linux-df36ac1bc2a166eef90785d584e4cfed6f52bd32.tar.xz linux-df36ac1bc2a166eef90785d584e4cfed6f52bd32.zip | |
pstore: Don't allow high traffic options on fragile devices
Some pstore backing devices use on board flash as persistent
storage. These have limited numbers of write cycles so it
is a poor idea to use them from high frequency operations.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/pstore')
| -rw-r--r-- | fs/pstore/platform.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index b8e93a40a5d3..78c3c2097787 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -443,8 +443,11 @@ int pstore_register(struct pstore_info *psi) pstore_get_records(0); kmsg_dump_register(&pstore_dumper); - pstore_register_console(); - pstore_register_ftrace(); + + if ((psi->flags & PSTORE_FLAGS_FRAGILE) == 0) { + pstore_register_console(); + pstore_register_ftrace(); + } if (pstore_update_ms >= 0) { pstore_timer.expires = jiffies + |