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 --- api/src/glfs-fops.c | 34 ++++++++++++++++++++++++++++++++++ api/src/glfs.h | 2 ++ 2 files changed, 36 insertions(+) (limited to 'api/src') diff --git a/api/src/glfs-fops.c b/api/src/glfs-fops.c index 66e7d69f14d..4bc0bb1b6d3 100644 --- a/api/src/glfs-fops.c +++ b/api/src/glfs-fops.c @@ -2631,6 +2631,40 @@ out: } +int +glfs_fallocate (struct glfs_fd *glfd, int keep_size, off_t offset, size_t len) +{ + int ret = -1; + xlator_t *subvol = NULL; + fd_t *fd = NULL; + + __glfs_entry_fd (glfd); + + subvol = glfs_active_subvol (glfd->fs); + if (!subvol) { + ret = -1; + errno = EIO; + goto out; + } + + fd = glfs_resolve_fd (glfd->fs, subvol, glfd); + if (!fd) { + ret = -1; + errno = EBADFD; + goto out; + } + + ret = syncop_fallocate (subvol, fd, keep_size, offset, len); +out: + if (fd) + fd_unref(fd); + + glfs_subvol_done (glfd->fs, subvol); + + return ret; +} + + int glfs_chdir (struct glfs *fs, const char *path) { diff --git a/api/src/glfs.h b/api/src/glfs.h index f472ca4ea1e..3888a103eb9 100644 --- a/api/src/glfs.h +++ b/api/src/glfs.h @@ -448,6 +448,8 @@ int glfs_lremovexattr (glfs_t *fs, const char *path, const char *name); int glfs_fremovexattr (glfs_fd_t *fd, const char *name); +int glfs_fallocate(glfs_fd_t *fd, int keep_size, off_t offset, size_t len); + char *glfs_getcwd (glfs_t *fs, char *buf, size_t size); int glfs_chdir (glfs_t *fs, const char *path); -- cgit