From d1ccc4e400728d90f2ef7904661f53deb7199123 Mon Sep 17 00:00:00 2001 From: Brian Foster Date: Wed, 8 May 2013 08:54:11 -0400 Subject: gluster: add fallocate fop support Implement support for the fallocate file operation. fallocate allocates blocks for a particular inode such that future writes to the associated region of the file are guaranteed not to fail with ENOSPC. This patch adds fallocate support to the following areas: - libglusterfs - mount/fuse - io-stats - performance/md-cache,open-behind - quota - cluster/afr,dht,stripe - rpc/xdr - protocol/client,server - io-threads - marker - storage/posix - libgfapi BUG: 949242 Change-Id: Ice8e61351f9d6115c5df68768bc844abbf0ce8bd Signed-off-by: Brian Foster Reviewed-on: http://review.gluster.org/4969 Tested-by: Gluster Build System Reviewed-by: Anand Avati --- libglusterfs/src/syscall.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'libglusterfs/src/syscall.c') diff --git a/libglusterfs/src/syscall.c b/libglusterfs/src/syscall.c index bb834dbfd9f..e8954cc237c 100644 --- a/libglusterfs/src/syscall.c +++ b/libglusterfs/src/syscall.c @@ -458,3 +458,26 @@ sys_access (const char *pathname, int mode) { return access (pathname, mode); } + + +int +sys_fallocate(int fd, int mode, off_t offset, off_t len) +{ +#ifdef HAVE_FALLOCATE + return fallocate(fd, mode, offset, len); +#endif + +#ifdef HAVE_POSIX_FALLOCATE + if (mode) { + /* keep size not supported */ + errno = EOPNOTSUPP; + return -1; + } + + return posix_fallocate(fd, offset, len); +#endif + + errno = ENOSYS; + return -1; +} + -- cgit