diff options
| author | Will Deacon <[email protected]> | 2014-07-10 12:40:09 +0100 |
|---|---|---|
| committer | Catalin Marinas <[email protected]> | 2014-07-18 10:21:17 +0100 |
| commit | 5959e25729a521097856d71528504deda1e11584 (patch) | |
| tree | ce4fc3bb9d6b573450ea8c947d94d49eaeb6dad3 /fs/jbd2/commit.c | |
| parent | ad789ba5f7086138461420d2156478d33fb61077 (diff) | |
arm64: fpsimd: avoid restoring fpcr if the contents haven't changed
Writing to the FPCR is commonly implemented as a self-synchronising
operation in the CPU, so avoid writing to the register when the saved
value matches that in the hardware already.
Cc: Ard Biesheuvel <[email protected]>
Reviewed-by: Lorenzo Pieralisi <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
Diffstat (limited to 'fs/jbd2/commit.c')
0 files changed, 0 insertions, 0 deletions