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| author | David Disseldorp <ddiss@samba.org> | 2015-02-19 15:53:56 +0100 |
|---|---|---|
| committer | Jeremy Allison <jra@samba.org> | 2015-03-09 21:27:07 +0100 |
| commit | 76fff2befe6613416e80f891ccb1521609e19169 (patch) | |
| tree | 2969528afb4ff8ebe613404f667dc8d2b35fc069 | |
| parent | b5a635fb0ab0967e375281dd003cd7eb123f73fd (diff) | |
| download | samba-76fff2befe6613416e80f891ccb1521609e19169.tar.gz samba-76fff2befe6613416e80f891ccb1521609e19169.tar.xz samba-76fff2befe6613416e80f891ccb1521609e19169.zip | |
build: check for SEEK_HOLE and SEEK_DATA support
SEEK_HOLE and SEEK_DATA will be used in the implementation of
FSCTL_QUERY_ALLOCATED_RANGES support.
"SEEK_DATA and SEEK_HOLE are nonstandard extensions also present
in Solaris, FreeBSD, and DragonFly BSD; they are proposed for
inclusion in the next POSIX revision (Issue 8)."
With Linux they are supported on:
- Btrfs (since Linux 3.1)
- OCFS (since Linux 3.2)
- XFS (since Linux 3.5)
- ext4 (since Linux 3.8)
- tmpfs (since Linux 3.8)
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
| -rw-r--r-- | source3/wscript | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/source3/wscript b/source3/wscript index 7e02b31f37..90f5d7ff20 100644 --- a/source3/wscript +++ b/source3/wscript @@ -522,6 +522,14 @@ return acl_get_perm_np(permset_d, perm); 'HAVE_FALLOC_FL_PUNCH_HOLE', msg="Checking whether Linux 'fallocate' supports hole-punching", headers='unistd.h sys/types.h fcntl.h linux/falloc.h') + + conf.CHECK_CODE(''' + int ret = lseek(0, 0, SEEK_HOLE); + ret = lseek(0, 0, SEEK_DATA);''', + 'HAVE_LSEEK_HOLE_DATA', + msg="Checking whether lseek supports hole/data seeking", + headers='unistd.h sys/types.h') + conf.CHECK_CODE(''' ssize_t err = readahead(0,0,0x80000);''', 'HAVE_LINUX_READAHEAD', |