diff options
| author | Brian Foster <bfoster@redhat.com> | 2013-06-04 11:54:43 -0400 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2013-06-13 14:38:57 -0700 |
| commit | cede8eb3d0007dcd6eb8929d5031ff25be955ed6 (patch) | |
| tree | b6851fa4406ab628fc16f1e0aea4ab318d14f688 /api | |
| parent | 17f287172413dc04244781aa5302a0e4f10e2777 (diff) | |
gfapi: async discard support
From: Bharata B Rao <bharata@linux.vnet.ibm.com>
Add glfs_discard_async() to meet QEMU's discard requirements.
BUG: 963678
Change-Id: I97723107fca88dd96cddc08cd67a286645a37922
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-on: http://review.gluster.org/5144
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'api')
| -rw-r--r-- | api/src/glfs-fops.c | 35 | ||||
| -rw-r--r-- | api/src/glfs.h | 3 |
2 files changed, 38 insertions, 0 deletions
diff --git a/api/src/glfs-fops.c b/api/src/glfs-fops.c index fbc9f4b49..e30a3548a 100644 --- a/api/src/glfs-fops.c +++ b/api/src/glfs-fops.c @@ -592,6 +592,9 @@ glfs_io_async_task (void *data) else ret = glfs_fsync (gio->glfd); break; + case GF_FOP_DISCARD: + ret = glfs_discard (gio->glfd, gio->offset, gio->count); + break; } return (int) ret; @@ -1742,6 +1745,38 @@ glfs_seekdir (struct glfs_fd *fd, long offset) */ } +int +glfs_discard_async (struct glfs_fd *glfd, off_t offset, size_t len, + glfs_io_cbk fn, void *data) +{ + struct glfs_io *gio = NULL; + int ret = 0; + + gio = GF_CALLOC (1, sizeof (*gio), glfs_mt_glfs_io_t); + if (!gio) { + errno = ENOMEM; + return -1; + } + + gio->op = GF_FOP_DISCARD; + gio->glfd = glfd; + gio->offset = offset; + gio->count = len; + gio->fn = fn; + gio->data = data; + + ret = synctask_new (glfs_from_glfd (glfd)->ctx->env, + glfs_io_async_task, glfs_io_async_cbk, + NULL, gio); + + if (ret) { + GF_FREE (gio->iov); + GF_FREE (gio); + } + + return ret; +} + void gf_dirent_to_dirent (gf_dirent_t *gf_dirent, struct dirent *dirent) diff --git a/api/src/glfs.h b/api/src/glfs.h index 700e10f17..d9c1202cd 100644 --- a/api/src/glfs.h +++ b/api/src/glfs.h @@ -452,6 +452,9 @@ int glfs_fallocate(glfs_fd_t *fd, int keep_size, off_t offset, size_t len); int glfs_discard(glfs_fd_t *fd, off_t offset, size_t len); +int glfs_discard_async (glfs_fd_t *fd, off_t length, size_t lent, + glfs_io_cbk fn, void *data); + char *glfs_getcwd (glfs_t *fs, char *buf, size_t size); int glfs_chdir (glfs_t *fs, const char *path); |