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-rw-r--r--xlators/storage/posix/src/posix.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c
index 93577cf54fc..36883403790 100644
--- a/xlators/storage/posix/src/posix.c
+++ b/xlators/storage/posix/src/posix.c
@@ -561,6 +561,72 @@ out:
return 0;
}
+static int32_t
+_posix_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t keep_size,
+ off_t offset, size_t len, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ struct iatt statpre = {0,};
+ struct iatt statpost = {0,};
+ struct posix_fd *pfd = NULL;
+ int32_t ret = -1;
+ int32_t flags = 0;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd);
+ if (ret < 0) {
+ op_errno = -ret;
+ gf_log (this->name, GF_LOG_DEBUG,
+ "pfd is NULL from fd=%p", fd);
+ goto out;
+ }
+
+ op_ret = posix_fdstat (this, pfd->fd, &statpre);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_log (this->name, GF_LOG_ERROR,
+ "fallocate (fstat) failed on fd=%p: %s", fd,
+ strerror (op_errno));
+ goto out;
+ }
+
+ if (keep_size)
+ flags = FALLOC_FL_KEEP_SIZE;
+
+ op_ret = sys_fallocate(pfd->fd, flags, offset, len);
+ if (op_ret == -1) {
+ op_errno = errno;
+ goto out;
+ }
+
+ op_ret = posix_fdstat (this, pfd->fd, &statpost);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_log (this->name, GF_LOG_ERROR,
+ "fallocate (fstat) failed on fd=%p: %s", fd,
+ strerror (op_errno));
+ goto out;
+ }
+
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (fallocate, frame, op_ret, op_errno,
+ &statpre, &statpost, NULL);
+
+ return 0;
+}
+
int32_t
posix_opendir (call_frame_t *frame, xlator_t *this,
loc_t *loc, fd_t *fd, dict_t *xdata)
@@ -4659,6 +4725,7 @@ struct xlator_fops fops = {
.fxattrop = posix_fxattrop,
.setattr = posix_setattr,
.fsetattr = posix_fsetattr,
+ .fallocate = _posix_fallocate,
};
struct xlator_cbks cbks = {