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| author | Mark Salyzyn <[email protected]> | 2016-09-01 15:13:46 +0000 |
|---|---|---|
| committer | Kees Cook <[email protected]> | 2016-09-08 22:01:10 +0000 |
| commit | 5bf6d1b92715f224ef6e1c3abca5dd63eeb4915d (patch) | |
| tree | 09139364ae61fbb0b188c0a762861bf800b70d23 /drivers/net/xen-netback/interface.c | |
| parent | pstore/ram: Set pstore flags dynamically (diff) | |
| download | kernel-5bf6d1b92715f224ef6e1c3abca5dd63eeb4915d.tar.gz kernel-5bf6d1b92715f224ef6e1c3abca5dd63eeb4915d.zip | |
pstore/pmsg: drop bounce buffer
Removing a bounce buffer copy operation in the pmsg driver path is
always better. We also gain in overall performance by not requesting
a vmalloc on every write as this can cause precious RT tasks, such
as user facing media operation, to stall while memory is being
reclaimed. Added a write_buf_user to the pstore functions, a backup
platform write_buf_user that uses the small buffer that is part of
the instance, and implemented a ramoops write_buf_user that only
supports PSTORE_TYPE_PMSG.
Signed-off-by: Mark Salyzyn <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
0 files changed, 0 insertions, 0 deletions