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| author | Björn Jacke <bj@sernet.de> | 2010-02-18 10:01:26 +0100 |
|---|---|---|
| committer | Björn Jacke <bj@sernet.de> | 2010-02-18 22:45:46 +0100 |
| commit | c0ebca237c6748365b2400529e02b5c8342e6ecc (patch) | |
| tree | ad86da35000a8aab76e5e0bd428196f8c3ba9f92 | |
| parent | 77164a8a5de22c67cf8d86bda92408aef2ea146b (diff) | |
| download | samba-c0ebca237c6748365b2400529e02b5c8342e6ecc.tar.gz samba-c0ebca237c6748365b2400529e02b5c8342e6ecc.tar.bz2 samba-c0ebca237c6748365b2400529e02b5c8342e6ecc.zip | |
s3: optimize strict allocate for XFS on IRIX
| -rw-r--r-- | source3/lib/system.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/source3/lib/system.c b/source3/lib/system.c index 9c1da3a78b..58240a34a8 100644 --- a/source3/lib/system.c +++ b/source3/lib/system.c @@ -627,6 +627,31 @@ int sys_posix_fallocate(int fd, SMB_OFF_T offset, SMB_OFF_T len) return posix_fallocate64(fd, offset, len); #elif defined(HAVE_POSIX_FALLOCATE) && !defined(HAVE_BROKEN_POSIX_FALLOCATE) return posix_fallocate(fd, offset, len); +#elif defined(F_RESVSP64) + /* this handles XFS on IRIX */ + struct flock64 fl; + SMB_OFF_T new_len = offset + len; + int ret; + struct stat64 sbuf; + + /* unlikely to get a too large file on a 64bit system but ... */ + if (new_len < 0) + return EFBIG; + + fl.l_whence = SEEK_SET; + fl.l_start = offset; + fl.l_len = len; + + ret=fcntl(fd, F_RESVSP64, &fl); + + if (ret != 0) + return errno; + + /* Make sure the file gets enlarged after we allocated space: */ + fstat64(fd, &sbuf); + if (new_len > sbuf.st_size) + ftruncate64(fd, new_len); + return 0; #else return ENOSYS; #endif |