diff options
| author | Mikhail Zaslonko <zaslonko@linux.ibm.com> | 2020-01-31 07:16:30 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-31 19:30:40 +0100 |
| commit | 803521b149c8c71a712445a32bd9316e074df76a (patch) | |
| tree | 6a739818beeedb2cdea05dbcc083eb8013989442 /include | |
| parent | s390/boot: add dfltcc= kernel command line parameter (diff) | |
| download | linux-803521b149c8c71a712445a32bd9316e074df76a.tar.xz linux-803521b149c8c71a712445a32bd9316e074df76a.zip | |
lib/zlib: add zlib_deflate_dfltcc_enabled() function
Add a new function to zlib.h checking if s390 Deflate-Conversion
facility is installed and enabled.
Link: http://lkml.kernel.org/r/20200103223334.20669-6-zaslonko@linux.ibm.com
Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Cc: Chris Mason <clm@fb.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: David Sterba <dsterba@suse.com>
Cc: Eduard Shishkin <edward6@linux.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/zlib.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/zlib.h b/include/linux/zlib.h index 92dbbd3f6c75..c757d848a758 100644 --- a/include/linux/zlib.h +++ b/include/linux/zlib.h @@ -191,6 +191,12 @@ extern int zlib_deflate_workspacesize (int windowBits, int memLevel); exceed those passed here. */ +extern int zlib_deflate_dfltcc_enabled (void); +/* + Returns 1 if Deflate-Conversion facility is installed and enabled, + otherwise 0. +*/ + /* extern int deflateInit (z_streamp strm, int level); |